A5067485432- Electrocatalysts for Energy Conversion
- Catalytic Processes in Materials Science
- Advanced battery technologies research
- Fuel Cells and Related Materials
- Advanced Photocatalysis Techniques
- Photonic Crystal and Fiber Optics
- Layered Double Hydroxides Synthesis and Applications
- Advanced Fiber Laser Technologies
- CO2 Reduction Techniques and Catalysts
- Advanced Fiber Optic Sensors
- Ammonia Synthesis and Nitrogen Reduction
- Electrochemical Analysis and Applications
- Advanced Memory and Neural Computing
- Catalysis and Oxidation Reactions
- Advanced Thermoelectric Materials and Devices
- Copper-based nanomaterials and applications
- Advanced Nanomaterials in Catalysis
- Gas Sensing Nanomaterials and Sensors
- Ionic liquids properties and applications
- Metal-Organic Frameworks: Synthesis and Applications
- Gold and Silver Nanoparticles Synthesis and Applications
- Photonic and Optical Devices
- Advanced Optical Imaging Technologies
- Covalent Organic Framework Applications
- Transition Metal Oxide Nanomaterials
Shenzhen University
2014-2024
Rutgers, The State University of New Jersey
2024
Nanjing Tech University
2022-2023
Wuhan University of Technology
2022-2023
Peking University
2019-2023
Ji Hua Laboratory
2023
Minjiang University
2022
Peking University Shenzhen Hospital
2019-2022
The University of Tokyo
2016-2021
Southeast University
2019-2021
Cu is commonly modified with sulfur to obtain high selectivity for formate since S can promote the formation of key *OCHO intermediate along pathway. In present work, we demonstrate that Cu-vacancies on copper sulfide surprisingly switch pathway CO pathway, and concentration vacancies deterministically regulate faradaic efficiency partial current density. The JCO SNC@Cu1.96S (Cu1.96S coated sulfur, nitrogen-co-doped carbon) reach 37.2 mA cm–2 in an H cell, which highest among Cu-based...
This paper presents our recent progress on the applications of laser metal deposited (LMD) Ti6Al4 V parts. The microstructure fabricated parts shows prior columnar β grains consisting acicular α' martensite. yield and ultimate tensile strengths are superior to those cast annealed wrought material, while elongation is lower. On-line monitoring control LMD process was performed by pool area feedback controlling power in order decrease heat accumulation. substrate dilution diminished decreased...
Abstract Transition metal elements such as Ni in high oxidation states can promote oxygen evolution reaction (OER) activity, but it is difficult to prepare dispersed 3+ or even 4+ species under mild conditions. Herein, a one‐step synthesis of high‐valence nickel‐doped CeO 2− x covered with FeOOH nanosheets the presence 2+ /Fe reported. A series ex situ and experiments reveal etching effect on ceria H + from hydrolysis Fe , which induces substitutional doping ions into etched sites their...
For the utilization of renewable energy resources to become widespread, efficient energy-storage devices must be developed. Electrocatalysts for oxygen evolution reaction (OER) are needed a wide variety such devices, including fuel cells, metal–air batteries, and photoelectrochemical cells. Here we demonstrate defect-rich NiCeOx layer, directly synthesized on Ni substrate through simple two-step dip-coating/annealing process, as highly active stable OER catalyst made from earth-abundant...
For electrochemical CO
CoxMg3-x/Al hydrotalcite-like compounds (where x = 0.0, 0.5, 1.0, 1.5, 2.0, 2.5, 3.0) were synthesized by the coprecipitation method and characterized XRD TGA techniques. Incorporation of Co for 0.0−3.0 gradually decreased transformation temperature hydrotalcites to corresponding oxides from 444 246 °C also surface area 162.7 21.6 m2/g upon calcination at 800 4 h in air. The resultant oxide was generally composed a poor MgO phase spinel phase, with more higher incorporation. derived tested...
Various XnY3−nAl-hydrotalcite-like compounds (HTlcs) were synthesized by the constant pH coprecipitation method with (X2+ + Y2+)/Al3+ molar ratio fixed at 3.0. Well-mixed oxides XnY3−nAlO derived from corresponding HTlcs precursors upon calcination. Physicochemical characterization X-ray diffraction analysis, Fourier transform infrared spectroscopy, thermogravimetric analysis (TGA), and Brunauer−Emmett−Teller equation indicates that are of either periclase or spinel phase, an interparticle...
Hydrogen energy has become one of the most attractive candidates to replace traditional fossil fuels because its lack pollution and high density. Electrocatalytic water splitting is a "green" sustainable way produce hydrogen but still not sufficiently efficient at this stage. In recent years, Ce-based materials have very popular as electrocatalysts for primarily multivalence state Ce easily formed oxygen vacancies readily in CeO2. However, until now, interesting subject seldom been reviewed,...
CeO2 has played an important role in improving the oxygen evolution reaction (OER) performance of transition metals-based catalysts whether as a hybrid, substrate, or interface. The high OER activity is ascribed to optimized metals and/or formed vacancies. In this work, interface effect between CoO and reported be reason for excellent CoO/CeO2. Compared with sole CoO/CeO2-L (larger nanosheets), CoO/CeO2 exhibited higher due faster kinetics intrinsic because large amount Co/Ce interfaces....
Lithium–sulfur batteries (LSBs) have attracted much attention due to their high energy density and theoretical specific capacity. However, the "shuttle effect" of polysulfides limits application. Herein, we propose a postsynthetic modification (PSM) strategy synthesize fibrous carborane-tailored covalent organic framework (PMCB-COF). Benefiting from its amphiphilicity, strong adsorption ability, surface area, accessible Li+ transport channels, PMCB-COF could serve as barrier polysulfide...
Abstract Precisely regulating surface reconstruction of copper (Cu) chalcogenides‐based catalysts to promote the multicarbon (C 2+ )selectivity electrochemical CO 2 reduction reaction (CO RR) is hampered by challenging control intractable anions and optimal Cu δ+ (0 < δ 1). Herein, a porous carbon‐supported selenides electrocatalyst that can remarkably improve C ‐product yield especially unveil time‐revolved RR process enable high ‐selectivity, most notably for ethanol constructed. The...
Studies on the microbial communities in non-human primate hosts provide unique insights both evolution and function of microbes related to human health diseases. Using 16S rRNA gene amplicon profiling, we examined oral, anal vaginal microbiota a group non-captive rhesus macaques (N = 116) compared compositions with healthy from Human Microbiome Project. The macaque was dominated by Bacteroidetes, Firmicutes Proteobacteria; however, there were marked differences phylotypes enriched across...
Ceria-based catalysts for the oxygen evolution reaction (OER) have received keen interest in recent years owing to their potential excellent cost performance. However, despite a flurry of research activities, mechanism on how ceria activates those hybrid is still puzzling. Herein, by controllably modifying oxidation state Ce ceria, it was revealed that creating Ce3+ species, which are redox-coupled Ce4+ under OER conditions, could enhance conductivity and optimize OH* binding, leading...
Bismuth oxide is one of the best-known formate production catalysts from electrocatalytic reduction CO2. It came as a surprise here that its hybridization with CeOx drastically boosted catalytic activity and stability on CO2 toward formation. Specifically, faradaic efficiency Bi2O3–CeOx exceeds 85% starting −0.3 V vs reversible hydrogen electrode (RHE) remains above 90% −0.5 to −1.1 RHE, outperforming pure Bi2O3 most other reported catalysts. Experimental computational results suggest...