Guipeng Yu

Guipeng Yu
Central South University/Max Planck Institute of Colloid and Interfaces · Chemstry and Chemical Engineering/Departpartment of colloid chemistry

Prof. PhD

About

111
Publications
10,413
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Introduction
The design and development of porous organic polymers for addressing key energy and environmental issues

Publications

Publications (111)
Article
Full-text available
N-heterocyclic-carbene based polymers with abundant active sites and excellent stability are fascinating and highly desired while remain rare for the lack of easy synthetic protocols. In this article, an unprecedented strategy that employed a porous polyimidazolium (IPF-CSU-4) as the support for Pd(II) coordination was proposed to develop efficient...
Article
Although considerable efforts have been devoted, the development of novel ionic porous networks (IPNs) in a scalable manner to tackle the issues in pollutant treatment by adsorption remains an imminent challenge. Herein, inspired by natural spider webs, a knitting copolymerization strategy is proposed to construct analogue triazolium salt‐based por...
Article
In this article, analogous covalent triazine framework (CTFs) were simply prepared through the trimerization of different nitrile building blocks (tetrafluoroterephthalonitrile or terephthalonitrile) under typical ionothermal conditions. We demonstrated that the fluorine contents could be simply altered by changing the comonomer compositions. Intro...
Article
Although vegetable oil-based waterborne polyurethane (WPUs) possesses unique advantage like environmental friendliness, the shortcomings of low mechanical properties have hampered its practical implementations. In this work, sustainable diols, isosorbide (IS) and L-tyrosine derived cyclic dipeptide (L-CD), were employed into the anionic castor oil...
Article
Porous asymmetric composite membranes (ACMs) have attracted intensive attentions in energy-efficient gas separations. However, fabricating ACMs with defect-free interface and enhanced selectivity without sacrificing permeability remains great challenge. Herein, a major step towards this goal is proposed by employing an efficient co-weaving strategy...
Article
Facile preparation of ionic porous networks (IPNs) with large and permanent porosity is highly desirable for CO2 capture and transformation but remains a challenge. Here we report a one-pot base-mediated construction of nitrogen-rich IPNs through a combination of nucleophilic substitution and quaternisation chemistry from H-imidazole. This strategy...
Article
The detection and sensing of trace iron(III) ions is a crucial but challenging task. Herein, we report a facile strategy to build carbazole-based copolymer latexes and films via semi-continuous emulsion copolymerization for the selective detection of iron(III) ions. Carbazole-decorated styrene–acrylic copolymer latexes were synthesized by the copol...
Article
Although significant advance has been achieved in developing porous organic polymers for effective iodine capture, the underlying principle for the adsorption behavior is not fully understood. Herein, analogous anionic porous networks (IPN-CSUs) bearing phosphate unit were fabricated via a one-pot Friedel-Crafts alkylation, in which heteroatom-cont...
Article
Conjugated Microporous Polymers (CMPs) with strong host−guest interactions are promising adsorbents for decontamination of radioactive iodine pollutants, but the relationship between molecular structure and iodine capture performance is not well understood till now. Herein, we report a strategy to promote affinity of cost-effective and stable CMPs...
Article
Conjugated porous polymers with rapid separation of photogenerated charges and multiple catalytic pathways remain a great challenge. Herein, two ferrocene-based polymers (Fc-CPPs) with high charge separation efficiency and unique dual...
Article
Full-text available
Conjugated microporous polymers (CMPs) are cost-effective photocatalysts in organic transformations, while they are usually limited by the insufficient separation of photogenerated charges. Here we report a polarization strategy through molecular geometry optimization to promote the charge separation of CMPs. Three CMP photocatalysts with an altern...
Article
Synthesis of adsorbents with permanent micro/mesoporous structures, tunable functional groups and processability is of great interest in industrial-scale processes for treating dye wastewater. Herein, a feasible crosslinking method has been employed to prepare porous ionic polymers (imidazolium and pyridinium-based) as adsorbents. The obtained mate...
Article
Searching for green, recyclable and highly efficient catalyst for the synthesis of cyclic carbonates from CO2 is of great importance because it is profitable for reducing the greenhouse effects and meets the principles of green chemistry. Herein, a series of cellulose nanocrystals, either the pristine or modified ones (TEMPO oxidized and Co(III)sal...
Article
Membrane technology has evolved as an alternative candidate for CO2 separation due to their inherent attributes, such as high energy efficiency, small capital investment, and environmentally benign characteristics. The key point of developing advanced membranes with satisfied performance is to find the balance between selectivity and permeability....
Article
Photocatalytic aerobic oxidative cyanation of tertiary amines is a sustainable synthetic tool to synthesize α-aminonitriles that can be further employed as important intermediates for pharmaceutical and natural compounds production. Classical photocatalysts used for cyanation, like transition metals, usually suffer from low stability, high cost, an...
Article
Full-text available
Sodium-ion capacitors (SICs) are extremely promising due to the combined merits of high energy-power characteristics and considerable price advantage. However, it is still difficult to achieve high energy-power outputs and cycle stability in a typical configuration of the metal-based battery-type anode and activated carbon capacitor-type cathode du...
Article
Polymeric membranes with high permeability for oxygen separation are highly demanded for a variety of industrial sectors. We herein developed a novel multi-component membrane system with improved O2/N2 separation performance, through physical blending an azo-bridged polymer of intrinsic microporosity (AZOPOP) with commercially available poly(phthal...
Article
Grafting beta-cyclodextrin (β-CD) onto cellulose nanocrystals (CNC) with the formation of well-dispersed nanoparticles (CNC-CD) and understanding their physicochemical properties are appealing but still challenging in controlled-release applications. Two immobilization methods were proposed and examined in this study; (i) copper (I) catalyzed click...
Article
Based on rigid and twisted heterocyclic phthalazinone unit as the core skeleton, novel hierarchical porous carbazole-containing porous organic polymers (PCMOPs) were successfully constructed through Friedel-Crafts reaction (PCMOP-Hs) and oxidation coupling reaction (PCMOP-Os), respectively, with anhydrous FeCl3 as catalyst. The structures of result...
Article
Task-specific design and construction of conjugated microporous polymers (CMPs) for classic organic transformation is highly significant but challenging. Herein, we report strategy to promote charge transfer in CMPs using phenothiazine unit as a core and commonly used building blocks (carbazole/benzene) as the linker. Featuring by wide visible-ligh...
Article
The challenge of light-driven controlled radical polymerization through non-noble metal catalyst remains the most significant issue. Ferrocene-bearing microporous aromatic polymer nanosheets (termed “FeMAP-11”) that feature high chemical stability were reported here to synergistically combine the advantageous properties of the redox-active ferrocen...
Article
Design and preparation of porous adsorption materials for dealing with environmental issues is attractive and promising, but it remains some challenges such as effective capture of radioactive iodine. Here, two nitrogen-rich porous organic polymers named PAN-B and PAN-T containing triazine and aminal linkages were synthesized through the polyconden...
Article
The development of new photocatalytic platforms using novel semiconductor material is an important challenge. Herein, a sp2 carbon-conjugated covalent triazine polymer (sp2 c-CTP-4), featuring a vinylene bridge and extended π-conjugation, is prepared as a highly efficient photocatalyst for degradation of methylene blue. sp2 c-CTP-4 exhibits substan...
Article
Full-text available
Microporous organic polymers (MOPs) with internal pores less than 2 nm have potential use in gas separation, sensing, and storage, in the form of membranes, monoliths, fibers, or adsorbent granules. These covalently bonded polymers are being formed by reacting with rigid organic monomers, and MOPs have lately been studied for capturing CO2 from gas...
Chapter
Due to increasing pressure to adopt sustainable approaches to product design and manufacture, the requirement to develop sustainable products has become one of the most important challenges to industry. Currently, there is a growing trend in developing products that maintain the concept of being natural and “green”. This has motivated the utilizati...
Article
Developing cost-effective approaches for fabricating porous carbon (PC) based catalysts with favourable oxygen reduction reaction (ORR) performance is highly significant for fuel-cell devices. Herein, we reported a precursor controlled, molten salt-templated approach to prepare ultrafine CoO nanoparticles embedded nitrogen-doped PC materials with h...
Article
A facile and universal approach to prepare cellulose nanocrystal reinforced functional hydrogels is proposed. An organic solvent-free and eco-friendly method was adopted, where both the modification and polymerization were conducted in an aqueous solution. Cellulose nanocrystal (CNC) and sodium alginate (SA) were first oxidized under mild condition...
Article
The effective removal of radioactive vapor wastes in fission is of significant importance and numerous porous solids have been developed to control volatile iodine emissions. However, most of porous matrixes fail to trap radioiodine reliably due to the weak binding interaction between scavenger and radioiodine, causing unexpected serious consequenc...
Article
Ionic liquids (ILs) have gained wide‐spread focus owing to its negligible vapor pressure, low heat capacity, high thermal stability, and structural diversity. The solubility and selectivity toward carbon dioxide has made ILs a unique platform that possess the potential in gas separations. In particularly, combining functional ILs with membranes and...
Article
Metal-functionalized porous carbons derived from microporous organic polymers remain highly desired for their intriguing physical and chemical properties. Currently, their preparation still suffers from tedious and costly synthetic procedures. Herein, we report a one-step in situ method for preparing metal-functionalized porous carbons via directly...
Article
Three kinds of carbazole-based porous organic polymers were successfully prepared via simple Friedel-Crafts alkylation of 1,3,5-tri(9-carbazolyl)-benzene (TCB). External crosslinking agents named 1,4-bis(chloromethyl)-benzene, cyanuric chloride and 1,4-dimethoxybenzene were selected and the derived polymers (denoted as CSU-CPOPs-1, CSU-CPOPs-2 and...
Article
Searching for catalysts that are cost‐effective, efficient, recyclable and capable of harvesting light for aerobic oxidation reactions remains a challenge for material scientists. Herein, we have designed and developed a task‐specified heterogeneous photocatalyst, which was built by a two‐step reaction starting from a commercially available compoun...
Article
The increasing carbon dioxide (CO 2 ) emissions from coal-fired power plants exacerbates the need for polymeric sorbents that can preferentially capture CO 2 over nitrogen (N 2 ). Herein we report two amine-functionalized microporous organic polymers (PTPNHs) through one-step facile modification of carboxyl-rich microporous organic polymers (PTPMA)...
Article
Developing stable open-pore sorbents with high porosity to efficiently capture radiotoxic iodine from the waste streams of nuclear is highly desirable in addressing the environmental issues. Here, we report three highly stable covalent triazine polymers with the same chemical composition while bearing different degree of crystallinity and pore stru...
Article
Porous organic polymers (POPs), which are built from pure organic building blocks through strong covalent bonds, are intriguing platforms with multiple functionalities. More recently, fluorescent POPs have drawn intensive attention due to their great potentials in sensing and imaging. The versatility of design and synthesis enables the facile intro...
Article
Amphiphilic Pickering particles are of immense importance because of their dominant ability to affect the emulsion stability and type. Among the present amphiphilic particulate emulsifiers to prepare controllable Pickering emulsion, there is increasing evidence that self-assembled polymeric micelles are comparatively effective and have gained atten...
Article
Full-text available
Porous organic polymers (POPs), known for its high surface area and abundant porosity, can be easily designed and constructed at the molecular level. The POPs offer confined molecular spaces for the interplay of photons, excitons, electrons and holes, therefore featuring great potential in catalysis. In this review, a brief summary on the recent de...
Article
An environment‐friendly synthesis of a covalently bonded terbium(Tb)‐complex‐containing monodispersed fluorescent porous copolymer microspheres, and their highly selective detection of Fe³⁺ are described. The as‐made copolymer microspheres exhibit intense green fluorescence originating from Tb ions and high photostability in water. Encouragingly, t...
Article
Three donor-conjugated units (triphenylamine (TPA)) and phenothiazine (PTZ))-side chain acceptor (cyanoacrylic acid (CAA)) donor-π-acceptor (D-π-A) conjugated polymers with different conjugated units (thiophen and/or 3, 4-ethylenedioxythiophene) were rationally designed and synthesized. The electronic properties and energy levels could be effective...
Article
Building novel frameworks as sorbents remains highly significant targeting for key environmental issues like CO2 or SO2 emissions from coal-fired power plants. Here we report the construction and tunable pore structure as well as gas adsorption properties of hierarchically porous covalent triazine-based frameworks (CTF-CSUs) functionalized by appen...
Article
Two series of flexible ketone-bridged nanoporous organic polymers (NOPs) are readily prepared through one-pot Friedel-Crafts acylation polymerization using pyromellitic dianhydride (PMDA) and terephthaloyl chloride (TC) as acylation reagents, respectively. The carboxyl-appended samples (termed [email protected] and [email protected]), derived from...
Article
Nitrogen doped carbon‐based materials including nanocarbons, graphene and conductive polymers are impressive in the application of supercapacitor electrodes. However, ultrahigh nitrogen contents, micropore dominated and morphology evolution carbonaceous electrodes have not achieved until now which are crucial for supercapacitor. Herein, we prepare...
Article
Incorporation of heteroatoms into carbon materials is crucial to tailor carbon materials' donor-acceptor properties and consequently tune their chemical and electrical performance. However, doping carbon materials with multi-heteroatoms (three or more, especially the light elements) has been rarely payed attention until now. In this work, we develo...
Article
Metal-free and heterogeneous organic photocatalysts provide an environmentally-friendly alternative to traditional metal-based catalysts. This paper reports a series of carbazole-based conjugated microporous polymers (CMPs) with tunable redox potentials and explores their photocatalytic performance with regard to C-3 formylation and thiocyanation o...
Article
A series of triphenylamine-functionalized phthalazinone-based covalent triazine framework materials (PHCTF-8) with high specific surface areas were successfully designed and constructed from a novel, centrosymmetric, and pinwheel-like tricyano precursor (TPAHPZ-TN) by ionothermal polymerization. The tricyano building blocks can be easily prepared b...
Article
Rich heteroatom-doped conjugated nanoporous polymers with uniform microspherical morphology exhibit remarkablly high capacity up to 450 wt% in removing iodine from vapor phase (at 348 K and atmosphere pressure).
Article
We describe a facile one-step synthesis of porous covalent sulfide-bridged polytriazine nanospheres (NOP-28), which can be employed as high-efficient sorbents and the same time selectively sensitive sensors towards trace Hg2+. The as-made nanospheres integrated with abundant thioether moieties, which are stable even under strong acid and base con-d...
Article
Full-text available
A nanoporous material bearing a high ion density and inherent organic radical character was synthesized in a facile one-pot process, which exhibits photo-, piezo- and chemochromism, driven by the diverse...
Article
A new ionic porous organic framework (termed IPF-CSU-1) with a remarkably high nitrogen content (20.3 wt%), and a high-density and uniform charge distribution was constructed, which served as a metal-free catalyst for CO2 conversion into cyclic carbonates in high yields (above 95%) under an ambient condition (298 K, 0.1 MPa).
Article
We propose a novel tetra-arm polydimethylsiloxane-bridged aryl-ether-functional epoxy acrylate (EAAE-PDMS), which was employed as a precursor to crosslink with systematic variations (0, 1, 3, 5, 15 wt.%) of thiol-functionalized silica nanoparticles (SNs) through a thiol-ene click chemistry, resulting in transparent hybrid films (EAAE-PDMS@SiO2). Th...
Article
Task-specific carbazole-based covalent triazine frameworks (CTF-CSUs) have been designed and prepared. The obtained materials could serve as excellent catalysts for both CO2 chemical fixation and oxygen reduction reaction (ORR). Results shown that using CTF-CSUs as catalysts, the cycloaddition reactions between CO2 and epoxides were readily achieve...
Article
Full-text available
A novel series of soluble and curable poly(ether imide) oligomers (PPEI-Phs) containing phthalazinone moiety and terminal phthalonitrile groups were prepared from an excess amount of phthalazinone-based dianhydride and 4,4′-diaminodiphenyl ether, followed by being end-capped with 4-(3-aminophenoxy)phthalonitrile in a two-step, one-pot reaction. The...
Article
Full-text available
A delicate control of crystallization and morphology of perovskite absorber is critical to obtain high performance hybrid perovskite solar cells (PSCs). Here, we have developed a novel crystallization strategy which involves hydration water induced intermediate phase formation under heat assisted spin-coating processing (HASP) to manipulate the mor...
Article
We demonstrated an environmentally friendly one-step soap-free emulsion polymerization strategy to develop fluorescent carbazole-based copolymer monodisperse microspheres for highly sensitive and selective detection of Fe3+. The copolymer microspheres feature a stable spherical morphology with a narrow size distribution through regulating N-vinylca...
Article
A series of nitrogen-rich porous polyaminal networks (PANs) with five different linkages were prepared through a facile route from cost-effective starting materials. Each structural unit bears a different number of phenyl and pyrrolyl rings, which are found to be useful for iodine uptake through a physical adsorption mechanism. The PAN3 bearing the...
Article
The synthetic control over pore structure remains highly desirable for porous organic frameworks. Here, we present a competitive chemistry strategy, i.e., a systematical regulation on Friedel–Crafts reaction and Scholl coupling reaction through tuning the ratios of monomers. This leads to a series of spirobifluorene-based microporous polymers (Sbf-...
Article
A series of multifunctional nanoporous organic polymers with high microporosity have been successfully synthesized via Friedel-Crafts alkylation and Scholl coupling reactions. Porous properties are well-controllable by simply regulating the lengths and rigidities of linkers, where the rigid tetrahedral building block, i.e. 1,3,5,7-tetraphenyladaman...
Article
Pore surface engineering in nanoporous organic polymers (NOPs) targeted for their different applications remains a critical challenge. Here we compare two classic modification strategies, i.e. pre-designable and post-synthesis modification, which allow controlled loading of functionalities onto the pore wall by anchoring ethyl ester, acetic acid or...
Article
A series of novel phthalazinone-based copolymers with intrinsic microporosity (PHPIMs) was successfully prepared by an aromatic double nucleophilic polycondensation reaction of a designed and synthesized, new rigid and twisty monomer,tetrahydroxyl-phthalazinone (TPHPZ), with 5,5’,6,6’-tetrahydroxy-3,3,3’,3’-tetramethyl-1,10-spirobisindane (TTSBI) a...
Article
Hypercrosslinked polymers for selective CO2 capture have been successfully synthesized from highly rigid contorted blocks via a low-cost versatile strategy. Such amorphous materials with improved porosities achieve high specific surface areas up to 1616 m2 g-1 and substantially improved pore volumes (1.53 cm3 g-1). The polymer networks feature hier...
Article
Five porous ether-linked phthalazinone-based covalent triazine frameworks (PHCTFs) were successfully constructed via ionothermal polymerizations from flexible dicyano monomers containing asymmetric, twisted and N-heterocyclic phthalazinone structure. All the building blocks could be easily prepared by simple and low-cost aromatic nucleophilic subst...
Article
A one-spot template approach for fabricating porous organic nanotubes was developed and a molecular design, i.e. introducing thiophene and s-triazine functionality to enhance host-guest interactions leaded to novel porous solids with high capacities for CO2 and exceptionally high ideal selectivities over N2 for effective gas storage and separation.
Article
Capturing volatile radionuclide iodine from nuclear and medical waste streams is an important environmental issue. In this work, we found that the 2,6-position hydrogen atoms of a BODIPY core undergo fast iodination with volatile iodine at room temperature. Inspired by our observation, two novel BODIPY-based conjugated porous polymers (CPPs) BDP-CP...
Article
Despite the huge progress achieved over the past decade, the relationship between the molecular weights of dyes and the performance of dye-sensitized solar cells (DSSCs) remains unclear. In this article, we report on the fine control of the number-average molecular weight (Mn) of poly(triphenylamine-2,2′-bithiophene) (PPAT) dyes with cyanoacrylic a...
Article
The advent of microporous organic polymers (MOPs) has delivered great potential in gas storage and separation (CCS). However, the presence of only micropores in these polymers often imposes diffusion limitations, which has resulted in the low utilization of MOPs in CCS. Herein, facile chemical activation of the single microporous organic polymers (...
Article
A series of cost-effective nanoporous organic polymers (NOP-50-NOP-52) with hierarchical pores for efficient CO2 capture were successfully synthesized via one-step Friedel-Crafts alkylation promoted by anhydrous FeCl3. Two chloromethyl monomers, i.e. dichloroxylene (DCX) and 4,4′-bis(chloromethyl)-1,1′-biphenyl (BCMBP) were utilized as crosslinkers...
Article
A series of novel azo-functionalized copolymerized networks (simply known as NOP-34 series) with tunable permanent microporosity and highly selective carbon dioxide capture are disclosed. The synthesis was accomplished by Zn-induced reductive cross-coupling copolymerization of two nitrobenzene-like building blocks with different 'internal molecular...
Article
A novel set of nanoporous organic polytriazines with cyanate ester linkages, termed the NOP-14 series, have been designed and constructed from a new triangular monomer 2,4,6-tris(4-cyanatophenyl)-1,3,5-triazine. Four different concentrations of reactive groups in the same solvent medium, have been employed to allow an easy modulation of pore size....
Article
In this work, the new classes of phthalazinone-based covalent triazine frameworks (PHCTFs) were prepared by ionothermal synthesis from two full rigid dicyano building blocks with rigid, thermostable and asymmetric N-heterocycle-containing structure. The surface and internal morphologies of PHCTFs were examined by FE-SEM and TEM. The resultant micro...
Article
Abstract Triphenylamine (TPA) and its derivatives are well-known pigments with excellent electron donating abilities and chemical, thermal and photochemical stabilities, and have been used in various optical and electronic fields. In this context, the polymer PPAB7 containing a TPA and a 4, 8-dithienylbenzo [1,2-b: 4, 5-b'] dithiophene (BDT) as the...
Article
A novel metal-doping strategy was developed for the construction of iron-decorated microporous aromatic polymers with high small-gas-uptake capacities. Cost-effective ferrocene-functionalized microporous aromatic polymers (FMAPs) were constructed by a one-step Friedel-Crafts reaction of ferrocene and s-triazine monomers. The introduction of ferroce...
Article
A hypercrosslinked conjugated microporous polymer (HCMP-1) with a robustly efficient absorption and highly specific sensitivity to mercury ions (Hg(2+) ) is synthesized in a one-step Friedel-Crafts alkylation of cost-effective 2,4,6-trichloro-1,3,5-triazine and dibenzofuran in 1,2-dichloroethane. HCMP-1 has a moderate Brunauer-Emmett-Teller specifi...
Article
A new metal-doping strategy was developed for the construction of iron decorated ultra-microporous aromatic polymers with high small gas uptake. Such cost-effective ferrocene-functional microporous aromatic polymers (FMAPs) were constructed by a straightforward, one-step routed Friedel-Crafts reaction starting from commercially available ferrocene...
Article
A set of conjugated polymers based on poly(triphenylamine-phenothiazine) with carboxylic acid side groups have been synthesized and utilized as sensitizers for dye-sensitized solar cells (DSSCs). The polymers feature a conjugated side-chain consisting of thiophene unit (PPAT4), alternating with either a 3, 4-ethylenedioxythiophene (EDOT, PPAT5) or...