A5072260692- Electrocatalysts for Energy Conversion
- Advanced battery technologies research
- Advanced Photocatalysis Techniques
- Fuel Cells and Related Materials
- Electrochemical Analysis and Applications
- Advanced Nanomaterials in Catalysis
- Copper-based nanomaterials and applications
- Advanced Thermoelectric Materials and Devices
- CO2 Reduction Techniques and Catalysts
- Flame retardant materials and properties
- Catalytic Processes in Materials Science
- 2D Materials and Applications
- Extraction and Separation Processes
- Ionic liquids properties and applications
- Quantum Dots Synthesis And Properties
- Polyoxometalates: Synthesis and Applications
- Concrete and Cement Materials Research
- Perovskite Materials and Applications
- Gas Sensing Nanomaterials and Sensors
- Thermal and Kinetic Analysis
- Phase Change Materials Research
- Building materials and conservation
- Nanocluster Synthesis and Applications
- Supercapacitor Materials and Fabrication
- Vanadium and Halogenation Chemistry
Beijing Institute of Technology
2016-2023
Shanghai Jiao Tong University
2021-2023
Ministry of Education of the People's Republic of China
2017-2018
Anhui University of Science and Technology
2014
Oxygen vacancies (Ov) engineering has demonstrated tremendous power to expedite electrocatalytic kinetics for oxygen evolution reaction (OER). The mechanism is elusive, and most of them were attributed the decoration or creation active sites. Here, we report critical role superficial Ov in enhancing electronic transport, thereby unfolding catalytic potential NiFe-layered double hydroxides OER. We reveal that barely regulates intrinsic activities but lowers charge transport resistances by...
Abstract Iron is an extraordinary promoter to impose nickel/cobalt (hydr)oxides as the most active oxygen evolution reaction catalysts, whereas synergistic effect actively debated. Here, we unveil that species mediate a strong electrochemical interaction between iron oxides (FeO x H y ) and supporting metal oxyhydroxides. Our survey on behavior of nine oxyhydroxides (M(O)OH) uncovers FeO synergistically promotes substrates can produce exclusively. Tafel slopes correlate with presence kind...
NiFe LDH arrays were directly grown on hierarchically porous graphitized carbon spheres to form a core–shell structured hybrid by feasible strategy as an enhanced electrocatalyst for the oxygen evolution reaction.
Electrocatalysts for the oxygen reduction reaction (ORR) play a central role in fuel cells and zinc–air batteries. Bimetal single atoms nanoparticle hybrids are emerging ORR electrocatalysts, superior to most exploited unary metal single-atom catalysts (SACs). Here, we report bimetal SAC-based nanofiber networks of Co3Fe7@Co/Fe-SAC efficient electrocatalysis A facile easy-to-scale-up process is developed, versatility validated three hybrids. Strong electronic interaction revealed between...
A decontaminating composite, Mg3 Al-LDH-Nb6 , has been successfully prepared by immobilizing Lindqvist [H3 Nb6 O19 ]5- (Nb6 ) into a Al-based layered double hydroxide (Mg3 Al-LDH). To our knowledge, this represents the first successful approach to immobilization of polyoxoniobate. As versatile catalyst, can effectively catalyze degradation both vesicant and nerve agent simulants multiple pathways under mild conditions. Specifically, sulfur mustard simulant, 2-chloroethyl ethyl sulfide...
We synthesized four Au@TiO<sub>2</sub> nanostructures, which exhibit dimensionality- and crystallinity-dependent photocatalytic activity towards H<sub>2</sub> generation.
Hierarchically structured bimetal hydroxides are promising for electrocatalytic oxygen evolution reaction (OER), yet synthetically challenging. Here, the nanoconfined hydrolysis of a hitherto unknown CoFe-bimetal-organic compound (b-MOC) is reported controllable synthesis highly OER active nanostructures CoFe layered double hydroxide (LDH). The nanoporous structures trigger in sacrificial b-MOC template, producing LDH core-shell octahedrons, and hollow nanocages with abundant...
Electronic transport plays a pivotal role in the electrolysis of semiconducting electrocatalysts for oxygen evolution reaction (OER), while it is mostly underestimated and largely unexplored. Here, by investigating electronic behavior seven archetypical crystalline Co/Ni/Fe-based (oxy)hydroxides (unary, binary, ternary) under OER potential, we study how extent to which affects apparent catalytic performances. The transports unary metal follow order Co > Ni Fe, their binary or ternary...
Ultrathin and oxygen-defect-rich nanosheets of cobalt oxide exhibit promoted activity stability in oxygen evolution reactions.
The practical applications of TiO2 have been greatly suppressed by its low quantum yield, which arises from the rapid recombination photo-induced electrons and holes, poor solar efficiency, is determined band gap. Herein, W-doped coupled with Au nanoparticles (W-TiO2/Au) was designed synthesized a facile multi-step process. W-doping in lattice, on one hand, can hinder phase transition anatase to rutile structure, pure structure well preserved. On other narrow gap result oxygen vacancies, may...
The decoupling of durable and active facets Co 3 O 4 suggests the synergistic enhancement activity stability through facet engineering.
A fast, controlled, and low-cost technique for synthesis of catalysts with (photo)electrochemical oxygen evolution reaction (OER) activity is the key to developing (solar) electricity-driven water splitting. Here, we design a template electro-etching strategy fabricate uniform FeOOH nanotubes (CC@FeOOH-NTs) as photoactive electrocatalysts, where in situ conversion process etching electrodeposition completes less than 400 s. The structural stability nanotubes' morphology phase transition from...
Silica powder is by-products from the ferrosilicon smelting industry.The material contains some of trace amounts iron oxide and carbon other impurities, so its application scope has been blocked.Hydrochloric acid pickling can remove original effectively.It was found that removal ratio increased with increasing amount hydrochloric acid, when more than 10 g/150 mL (20 % acid), reaction basic balance.The be effectively removed by calcinations temperature, sample colour turned dark gray to light...
A versatile decontamination material based on immobilized polyoxoniobate has been successfully prepared. The composite, Mg3Al-LDH-Nb6, can effectively catalyze three chemical warfare agent simulants through the optimal pathway of each: selectively oxidizing sulfur mustard simulant (CEES), hydrolyzing a G-type nerve (DECP), and perhydrolyzing V-type (OSDEMP). self-detoxifying be used to produce personal protective equipment by integrating into suit, gloves, boots. More information found in...