Yulian He

Shanghai Jiao Tong University | SJTU · University of Michigan - Shanghai Jiao Tong University Joint Institute

A new class of hydrophobic CuO nanosheets is introduced by functionalization of the cupric oxide surface with p-xylene, toluene, hexane, methylcyclohexane and chlorobenzene. The resulting nanosheets exhibit a wide range of contact angles from 146° (p-xylene) to 27° (chlorobenzene) due to significant changes in surface composition induced by functio...

Understanding the fundamental structure-property relationships of nanomaterials is critical for many catalytic applications as they comprise of the catalyst designing principles. Here, we develop efficient synthetic methods to prepare various MnO2 structures and investigate their catalytic performance as applied to the reverse Water Gas Shift (rWGS...

Carbon capture, utilization, and storage technologies is the key component of international plans to combat climate change. While a lack of economic incentives hinders their large-scale applications. In this chapter, we aim to summarize the given circular carbon economy models for various CCUS processes. We are dedicated to analyzing the economics...

The need to tackle CO2 emissions arising from the continuously rising combustion of fossil fuels has sparked considerable interest in investigating the reverse water gas shift (RWGS) reaction. This reaction holds great promise as an alternative technique for the conversion and utilization of CO2. In this study, a scalable method was employed to syn...

The CO2 catalytic hydrogenation represents a promising approach for gas-phase CO2 utilization in a direct manner. Due to its excellent hydrogenation ability, nickel has been widely studied and has shown good activities in CO2 hydrogenation reactions, in addition to its high availability and low price. However, Ni-based catalysts are prone to sinter...

High hydrophobicity of π-extended conjugated polymers (CPs) adversely affects their photoluminescence quantum yield (PLQY) in water and hydrogel/solid state via an unsolicited aggregation-caused quenching (ACQ) process which ultimately hampers their sensing and imaging performance. Herein, an efficient strategy is presented to suppress and transfor...

The role of carbon dioxide in our changing climate is now hard to ignore, and many countries are making pledges to reduce or eliminate their carbon output. Chemical valorisation of carbon dioxide, as an alternative to sequestration, is likely to play an important part in reaching these targets, and as such is one of the fastest developing areas of...

Colloidal InP quantum dots (QDs) have emerged as potential candidates for constructing nontoxic QD-based optoelectronic devices. However, charge transport in InP QD thin-film assemblies has been limitedly explored. Herein, we report the synthesis of ∼8 nm edge length (∼6.5 nm in height), tetrahedral InP QDs and study charge transport in thin films...

Methane (CH4) is one of the cleanest fossil fuel resources and is playing an increasingly indispensable role in our way to carbon neutrality, by providing less carbon-intensive heat and electricity worldwide. On the other hand, the atmospheric concentration of CH4 has raced past 1,900 ppb in 2021, almost triple its pre-industrial levels. As a green...

As the changes of biomarkers directly reflect the occurrence of degenerative diseases, accurate detection of biomarkers is of great significance for disease diagnosis and control. However, single index detection has high uncertainties to accurately reflect the pathological characteristics because of the complexity of the human internal environment...

Nonspecific interactions of conjugated polymers (CPs) with various proteins prove to be a major impediment for researchers when designing a suitable CP-based probe for the amplified and selective recognition of particular proteins in complex body fluids. Herein, a new strategy is presented for the precise and specific monitoring of clinically impor...

Today, the atmospheric carbon dioxide (CO2) concentrations have reached an unprecedented record high of almost 420 ppm since the industrial revolution, resulting in an increase of the average global temperature by 1.5 ◦C. Tremendous efforts are being made to reduce carbon emission e.g. at stationary point sources such as fossil fuel-based power pla...

Oxidative coupling of carbon monoxide (CO) with methyl nitrite (MN) to dimethyl oxalate (DMO) on the Pd/α-Al2O3 catalyst is a vital step for ethylene glycol (EG) and glycolic acid (GA) production from syngas. In this work, we revisited the reaction mechanism and kinetics by including the side reactions to dimethyl carbonate (DMC) and methyl formate...

CO2 hydrogenation to CH3OH via heterogeneous catalysis is one of the most promising and available approaches for mitigation of anthropogenic CO2 issues. In this work, thermodynamic equilibria of CO2 to methanol were compared with experimental results at given conditions using a commercial Cu/ZnO/Al2O3 catalyst for CO hydrogenation to methanol. It w...

A new class of amphiphilic magnetic adsorbents (denoted as Fe3O4-GPS-A) is fabricated by functionalization of the Fe3O4 surface with six different amphiphilic silanizing agents that are specifically tailor-made to the chemical structure of PAEs. The resulting Fe3O4-GPS-A exhibit different contact angles due to the significant changes in functional...

Rutin (RT), a widely distributed natural flavonoid compound, has been generally utilized as an important active ingredient owing to its considerable biomedical and economic value. Inspired by the structure features of densely-packed bayberry and well-orientated honeycomb, a novel type of magnetic molecularly imprinted polymers (HB-TI-MMIPs) with ab...

Multiwall carbon nanotubes (MWCNTs) were non-covalently functionalized by a uniform layer of a porphyrin–Sn network (denoted as MPT) via a facile one-pot solvothermal synthesis for enhancing protein adsorption. The porphyrin–Sn network layer was assembled by meso-tetra(4-carboxyphenyl) porphine (TCPP) molecules cross-linked by SnCl2. The thickness...

Significance Particulate photocatalysis is a promising approach to solar fuels production at scale. Herein, we present a general design by using conformal coatings and attaching nanoscale cocatalysts to achieve local charge separation and, at the same time, to stabilize photocatalysts that are easily photocorroded otherwise. With spatial charge sep...

Nowadays, recovery of added-value compounds by pre-treatment and extraction has become imperative in the recycling and transformation of bio-waste. Hence, to achieve efficient bio-waste recycling and avoid the drawbacks of...

Arrays of GaAs nanowires have been grown by selective-area metal–organic chemical-vapor deposition (MOCVD) onto photoactive planar Si substrates. This tandem, vertical-wire-array-on-planar absorber was then coated by atomic layer deposition (ALD) of an amorphous TiO₂ (a-TiO₂) stabilization layer, followed by deposition of a NiO_x electrocatalyst la...

Semiconductors of narrow bandgaps and high quantum efficiency have not been successfully utilised for coevolving photocatalysis despite the widely demonstrated protective coating schemes. Herein, we showcase a general strategy of using conformal coatings and cocatalysts energetic properties to transform CdS powders and GaInP 2 films into stable and...

Octanoic acid was chosen as biomass model for studying catalytic hydrogenation reaction. The effect of support species and structure on catalytic activity were studied in this work. Ni nanoparticles supported on metal oxide supports (ZrO2, SiO2, Al2O3 and TiO2) were characterized and examined for their catalytic properties. Ni/ZrO2 exhibited high c...

The Front Cover illustrates the different reaction barriers that must be overcome in the phenol hydrogenation to either cyclohexanol or cyclohexanone. In their Full Paper, H. Chen et al. investigated the reaction mechanism of phenol hydrogenation catalyzed by Pd nanoparticles supported on a hollow box‐shaped Ni‐MOF in aqueous phase. Experimental an...

The front cover artwork for issue 12/2018 is provided by Xi'an Jiaotong University and Tsinghua University (China). The image illustrates the different reaction barriers that must be overcome in the phenol hydrogenation to either cyclohexanol or cyclohexanone. See the Full Paper itself at https://doi.org/10.1002/cctc.201800211. “Phenol hydrogenatio...

Metal‐organic frameworks (MOFs) have been extensively applied as supports in hydrogenation catalysis owing to their topological structure and high hydrogen storage capabilities. Pd nanoparticles (NPs) supported on a hollow box‐shaped MOF were prepared for phenol hydrogenation in the aqueous phase. The MOF preparation modulated by monocarboxylic aci...

Understanding how nano-dimensionality impacts iron oxide based catalysis is central to a wide range of applications. Here, we focus on hematite nanosheets, nanowires and nanoparticles as applied to catalyze the reverse water gas shift (RWGS) probe reaction. We introduce a novel approach to synthesize ultrathin (4-7 nm) hematite nanosheets using cop...

CuO is a nonhazardous, earth-abundant material that has exciting potential for use in solar cells, photocatalysis, and other optoelectronic applications. While progress has been made on the characterization of properties and reactivity of CuO, there remains significant controversy on how to control the precise band gap by tuning conditions of synth...