Yu Li's research while affiliated with Wuhan University of Technology and other places

Publications (23)

Article
For the first time, we demonstrate a Ti-MOF (Ti-metal organic framework) single-crystal featuring intracrystal macro-microporous hierarchy (Hier-NTU-9) by a vapor-assisted polymer-templated method. Such Hier-NTU-9 possesses macropores (100-1000 nm) derived from...
Article
Periodic structures with alternating refractive indices such as inverse opal photonic crystals are capable of reducing the group velocity of light such that this slowed light can be more efficiently harvested for highly enhanced solar energy conversion. However, the generation, the manipulation and, in particular, the practical applications of thes...
Article
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Diffusion is an extremely critical step in zeolite catalysis which determines the catalytic performance, in particular for the conversion of bulky molecules. Introducing interconnected mesopores and macropores into a single microporous zeolite with the rationalized pore size at each level is an effective strategy to suppress the diffusion limitatio...
Article
Full-text available
Rate capability, peak power, and energy density are of vital importance for the capacitive energy storage (CES) of electrochemical energy devices. The frequency response analysis (FRA) is regarded as an efficient tool in studying the CES. In the present work, a bi-scale impedance transmission line model (TLM) is firstly developed for a single pore...
Article
Sustainable processes for semi‐hydrogenation of alkynes/alkadienes impurities in alkenes feedstocks are in great demand in industry as the utilization of excessive hydrogen, high temperature and unsatisfactory alkenes selectivity of the current thermo‐catalytic route, however, their development is still challenging. Herein, we innovate a light‐assi...
Article
Sustainable processes for semi‐hydrogenation of alkynes/alkadienes impurities in alkenes feedstocks are in great demand in industry as the utilization of excessive hydrogen, high temperature and unsatisfactory alkenes selectivity of the current thermo‐catalytic route, however, their development is still challenging. Herein, we innovate a light‐assi...
Article
Guided by the theoretical calculation, achieving an efficient hydrogen evolution reaction (HER) by S-vacancy engineering toward MoS2-based materials is quite challenging due to the contradictory relationship between the adsorption free energy of hydrogen atoms (ΔGH) of the exposed Mo atoms (EMAs) and the number of EMAs per unit area (NEMAs). Herein...
Article
In this work, ZnO hollow spheres (ZnO‐HS) with mesoporous shells are successfully synthesized via a facile and two‐step method. The hollow structure provides sufficient space and active sites for adsorbing gases. The mesoporous shells assembled from nanoparticles facilitate the diffusion of gas molecules into the inner space and ensure full contact...
Article
Full-text available
Artificial photosynthesis of H2O2, an environmentally friendly oxidant, and a clean fuel hold great promise. However, improving its efficiency and stability for industrial implementation remains highly challenging. Here, we report the visible-light H2O2 artificial photosynthesis by digging pro-superoxide radical carbon vacancies in three-dimensiona...
Article
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Lithium-selenium battery is nowadays a highly competing technology to the commercial Li-ion battery because it has a high volumetric capacity of 3253 mAh cm-3 and gravimetric capacity of 675 mAh g-1. However, the practical application of lithium-selenium (Li-Se) batteries is impeded by the shuttle effect of the soluble polyselenides during the cycl...
Article
Full-text available
The shuttle effect and excessive volume change of the sulfur cathode severely impede the industrial implementation of Li-S batteries. It is still highly challenging to find an efficient way to suppress the shuttle effect and volume expansion. Here, we report, for the first time, an innovative atomic orbital hybridization concept to construct the hi...
Article
Graphitic carbon nitride (g-C3N4) has attracted great interest in photocatalysis and photoelectrocatalysis. However, their poor hydrophilicity poses a great challenge for their applications in aqueous environment. Here, we demonstrate synthesis of a hydrophilic bi-functional hierarchical architecture by the assembly of B-doped g-C3N4 nanoplatelets....
Article
Lithium-selenium (Li-Se) battery has attracted growing attention. Nevertheless, its practical application is still impeded by the shuttle effect of the formed polyselenides. Herein, we report in-situ hydrothermal weaving the three-dimensional (3D) highly conductive hierarchically interconnected nanoporous web by threading microporous metal organic...
Article
The irreversible release of the lattice oxygen in layered cathodes is one of the major degradation mechanisms of lithium ion batteries, which accounts for a number of battery failures including the voltage/capacity fade, loss of cation ions and detachment of the primary particles, etc. Oxygen release is generally attributed to the stepwise thermody...
Article
Serious diffusional limitations are frequently observed for the conversion of bulky molecules over conventional zeolite Beta crystals, which invoke for hierarchical structure to improve the mass transportation property and the accessibility to reactive sites. Zeolite single crystals with intracrystalline hierarchical porosity at macro‐, meso‐ and m...
Article
An in situ bottom‐up confined zeolite crystallization strategy is developed to construct micron‐sized hierarchically ordered macro‐mesoporous single‐crystalline zeolite Beta with improved accessibility to active sites and outstanding (hydro)thermal stability for both gas‐phase and liquid‐phase acid‐catalyzed reactions of bulky molecules. Abstract...
Article
In 3D scene, introducing the Vector Data, will be enable 3D Terrain with spatial analysis capabilities, And vector data can make up for deficiencies in the performance of 3D terrain data. This paper focuses on the integration, real-time rendering of 2D vector data and 3D terrain. Texture-based means is used to implement vector data mapping in 3D te...

Citations

... Photocatalytic conversion of glucose is a promising technology for utilizing solar energy at room temperature. 19 During the photocatalytic conversion process, glucose solution is oxidized and then converted into high-value-added products accompanied by water splitting to produce hydrogen without any sacrificial agent, such as sulfides 20 and alcohols. 21 In recent years, many researchers have used the traditional material TiO 2 to study the photocatalytic glucose conversion. ...
... [1][2][3][4][5][6] To date, a myriad of MOFs prepared by versatile methods have been reported. [7][8][9][10][11] Room temperature fabrication of MOFs has profound implications from techno-economic and eco-friendly perspectives, [12][13][14][15][16] and quite a few divalent metal-based MOFs such as Cu-and Zn-based MOFs have been synthesized at room temperature. [17][18][19][20][21] However, high-valence metal-based MOFs are far more difficult to synthesize at room temperature, let alone with rapid kinetics, [22][23][24] and their synthesis basically requires external energy such as microwaves and electricity. ...
... A prominent midgap state arising from Cu doping near the Fermi level leads to the facile photoelectron migration from VB to CB and the suppressed electron-hole pair recombination. More importantly, incorporation of Cu brings out a significant increase in DOS at both VB and CB, resulting in the enhanced charge carrier concentration and good conductivity, which is verified by the subsequent photocurrent and EIS observations in Fig. 4. In sum, the Cu doping increases the hybridization between Cu and Ti atoms and DOS, leading to the decreased bandgap for light harvesting, high photoinduced carrier concentration, good conductivity and rapid electron-hole pair separation [37][38][39][40], therefore being beneficial for the improved photocatalytic activity. Fig. 3c shows a reduced bandgap of 1.7 eV after the formation of the heterojunction. ...
... The intermediate energy level provides an additional route for the absorption of low-energy photons through the excitation of VB electrons to the intermediate energy levels, where they can be excited again to the CB [30,32,33]. As a result, more photoinduced carriers are formed and the recombination of electron-hole pairs is prohibited, thus giving rise to the enhanced photocatalytic performance [58][59][60]. ...
... Generally, the light conversion into photocurrent predominantly consists of three steps involving the light absorption efficiency (η abs ), photoinduced carrier separation rate (η sep ), and surface charge transfer efficiency (η trans ) of photocatalysts [31][32][33]. As a result, the photocurrent intensity in Na 2 SO 4 solution (J(Na 2 SO 4 )) can be described by the following equation [32,33]: where J max represents the theoretical maximum photocurrent intensity. ...
... The same group of authors continued to study the degradation process of MAPbBr 3 by SAED and reported a similar degradation process, proposing a general degradation mechanism for MA-PbX 3 as halogen ion desorption → formation of ordered vacancies → formation of MAPbX 3-x mesophase → precipitation of PbX 2 ", as shown in Fig. 3(b) [69] . Similar degradation pathways had been generally recognized in oxide perovskites, but it was first proposed in halide perovskites [70,71] . More recently, similar degradation mechanism was reported in all-inorganic perovskite of γ-CsPbIBr 2 as well, where an intermediate phase [e.g., CsPb (1−x) (IBr) (3−y) ] with a superstructure of ordered vacancies was formed, followed by reduction from Pb 2+ to Pb 0 and thus precipitation of Pb nanoparticles [72] . ...
... The collected composite had formed an interconnected web, with MOF crystals stringed through the conductive CNTS, capable of polyselenides confinement and electrolyte facilitation ( Figure 3). Compared to the pure MIL-68, the composite exhibited 50% higher capacity, reaching 453 mAh/g at 0.2C after 200 cycles [66]. Similarly, selenium, belonging to the same group as sulfur, and possessing a higher electrical conductivity is recently viewed as a potential alternative for lithium battery cathodes. ...
... All three samples exhibit typical diffraction peaks at 2θ degrees of 9.5°, 14.0°, 16.1°, 17.8°, 20.7°, and 25.0°, which attribute to chabazite structure. [20,21] Taking the crystallinity of HÀ P as a reference, the relative crystallinity of HÀ E and HÀ R was calculated by comparing the sum of the areas of six characteristic peaks to that of HÀ P, [22] and the values were noted in the corresponding positions of the figure (each sample is weighed in the same amount for XRD measurement to avoid interference of other factors in the peak intensity). The relative crystallinity of HÀ E was only 79.7 %, due to the existence of the amorphous SiO 2 binder leading to the decreased crystallinity. ...
... Hence, the improved activity is due to the enhanced accessibility of acid sites for the bulky probe molecules in the core-shell zeolite (inter/intracrystalline mesoporosity) as a result of the meso/macroporous NanoZSM-5 shell compared to the mixed (Mi-BEA/ZSM-5) zeolite. At TOS of 240 min, the increased DIPB and decreased propylene selectivity indicates a decreased catalytic activity of the mixed microporous zeolite composite due to deactivation from coke deposition [67], suggesting the low cracking degree of 1,3, 5-TIPB (Fig. 8e). Furthermore, it is expected that the large interparticular space in the nanocrystalline ZSM-5 in the core-shell zeolite will facilitate the diffusion of the bulky 1,3,5-TIPB and enhance the accessibility of the external acid sites of the BEA core zeolite. ...
... At high-frequency region, the intercept of the Nyquist plots on real axis reflects the solution resistance (R s ), the semicircle corresponding to double-layer capacitance (C dl ), and the diameter of the semicircle assign to the charge transfer resistance (R ct ). Neither fast nor slow faradaic processes have effect on low frequency properties of Warburg impedance, at low frequency range, the sloped curve represents the electrolyte ion transportation on the active material surface-represents the Warburg resistance (Z w ) [62][63][64][65]. The R s , R ct , and Z w values of the pristine Ti 3 C 2 T x MXene electrode are 1.0 Ω, 1.4 Ω, and 11.0 Ω, respectively, while those for the P-doped Ti 3 C 2 T x electrode are decreased to 1.0 Ω, 1.3 Ω, and 2.4 Ω, respectively. ...