A5100770981- Advanced Photocatalysis Techniques
- Perovskite Materials and Applications
- Electrocatalysts for Energy Conversion
- TiO2 Photocatalysis and Solar Cells
- Quantum Dots Synthesis And Properties
- Conducting polymers and applications
- Copper-based nanomaterials and applications
- Advanced battery technologies research
- CO2 Reduction Techniques and Catalysts
- Catalytic Processes in Materials Science
- Chalcogenide Semiconductor Thin Films
- Advanced Nanomaterials in Catalysis
- Fuel Cells and Related Materials
- Ionic liquids properties and applications
- Gas Sensing Nanomaterials and Sensors
- Electronic and Structural Properties of Oxides
- Ammonia Synthesis and Nitrogen Reduction
- Electrochemical Analysis and Applications
- ZnO doping and properties
- Iron oxide chemistry and applications
- Catalysis and Oxidation Reactions
- MXene and MAX Phase Materials
- Metal-Organic Frameworks: Synthesis and Applications
- Solid-state spectroscopy and crystallography
- Covalent Organic Framework Applications
East China University of Science and Technology
2016-2025
Hunan University of Science and Engineering
2022-2024
Chinese Academy of Sciences
2009-2024
Institute of High Energy Physics
2015-2024
China Spallation Neutron Source
2018-2024
Yan'an University
2022-2024
ZheJiang Academy of Agricultural Sciences
2023-2024
Peking Union Medical College Hospital
2024
Chinese Academy of Medical Sciences & Peking Union Medical College
2024
YangPu Geriatric Hospital
2024
Earth-abundant first-row (3d) transition metal-based catalysts have been developed for the oxygen-evolution reaction (OER); however, they operate at overpotentials substantially above thermodynamic requirements. Density functional theory suggested that non-3d high-valency metals such as tungsten can modulate 3d metal oxides, providing near-optimal adsorption energies OER intermediates. We a room-temperature synthesis to produce gelled oxyhydroxides materials with an atomically homogeneous...
Owing to wide-ranging industrial applications and fundamental importance, tailored synthesis of well-faceted single crystals anatase TiO(2) with high percentage reactive facets has attracted much research interest. In this work, high-quality single-crystal nanosheets mainly dominated by {001} have been prepared using a water-2-propanol solvothermal synthetic route. The synergistic functions 2-propanol HF on the growth were studied first-principle theoretical calculations, revealing that...
Semiconductor photocatalysts have important applications in renewable energy and environment fields. To overcome the serious drawbacks of low efficiency narrow light-response range most stable semiconductor photocatalysts, many strategies been developed past decades. This review attempts to provide a comprehensive update examination some fundamental issues titania (TiO2)-based such as crystal growth, doping heterostructuring. We focus especially on recent progress exploring new design...
In this work, we report a simple "one pot" approach to prepare hollow anatase TiO2 nanospheres via Ostwald ripening under hydrothermal conditions. Inner nanospace and highly organized crystallites in the shell structure surface regions can be created with wide range of controlling parameters. The formation mechanism has been investigated TEM/ED/SEM/EDX/XRD/XPS methods. shows high versatility for structural engineering various targeted morphological products, including inner material refills.
Hydrogen production through electrochemical process is at the heart of key renewable energy technologies including water splitting and hydrogen fuel cells. Despite tremendous efforts, exploring cheap, efficient durable electrocatalysts for evolution still remains as a great challenge. Here we synthesize nickel-carbon-based catalyst, from carbonization metal-organic frameworks, to replace currently best-known platinum-based materials electrocatalytic evolution. This catalyst can be activated...
We demonstrated a facile route for one-pot synthesis of visible light responsive nitrogen doped anatase TiO2 sheets with dominant {001} facets from TiN. The synthesized show strong and stable capability generating photocatalysis active species •OH radicals hydrogen evolution splitting water under irradiation.
Abstract The layer‐structured MoS 2 is a typical hydrogen evolution reaction (HER) electrocatalyst but it possesses poor activity for the oxygen (OER). In this work, cobalt covalent doping approach capable of inducing HER and OER bifunctionality into efficient overall water splitting reported. results demonstrate that covalently can lead to dramatically enhanced while simultaneously remarkable activity. catalyst with optimal density readily achieve onset potentials −0.02 1.45 V (vs...
0D→2D→3D oriented attachment has been exploited to prepare octahedra of rutile-like SnO2 with a central cavity by template-free hydrothermal route. The synthesis is based on the two-dimensional nanocrystallites and stabilization family {111}-like crystal planes in 2-propanol/water presence ethylenediamine. In TEM images octahedron (see picture), evidenced lighter regions. Supporting information for this article available WWW under http://www.wiley-vch.de/contents/jc_2002/2004/z461129_s.pdf...
Nanosized anatase TiO(2) single crystals with 18% {001} facets have a raised conduction band minimum by 0.1 eV, and exhibit photocatalytic activity both for generating *OH radicals splitting water into hydrogen that is markedly superior--by factors of 5.6 8.2, respectively--to reference ca. 3 microm 72% facets.
Efficient and durable electrocatalysts from earth-abundant elements play a vital role in the key renewable energy technologies including overall water splitting hydrogen fuel cells. Here, generally used CoFe based layered double hydroxides (LDHs) were first delaminated exfoliated DMF-ethanol solvent (CoFe LDH-F), with enhancement both oxygen evolution reaction (OER) (HER). The exfoliation process creates more coordinatively unsaturated metals improves intrinsic electronic conductivity, which...
Constructing photocatalytically favorable surface structure in synthesizing photocatalysts plays an important role enhancing the photocatalytic activity of semiconductor photocatalysts. In this report, oxygen-deficient anatase TiO2 sheets with dominant {001} facets were synthesized via a facile one-pot hydrothermal route solid metallic titanium diboride as precursor. contrast to free oxygen deficiency and fluorine, fluorine are subject obvious reconstruction evidenced by two new Raman-active...
In this work, we report a facile top-down approach to fabricate uniform single-crystal α-Fe2O3 nanodiscs via selective oxalic acid etching. Phosphate ions are employed as capping agent control the etching along [001] direction. We also show that melon-like microparticles with contrasting textural properties can be generated using same approach. The etched particles exhibit much larger total pore volume and average size compared pristine ones, thus serving possible origin for their greatly...
The organic-inorganic hybrid perovskite CH3NH3PbI3 is a novel light harvester, which can greatly improve the solar-conversion efficiency of dye-sensitized solar cells. In this article, first-principle theoretical study performed using local, semi-local and non-local exchange-correlation approximations to find suitable method for material. Our results, optB86b + vdWDF functional, excellently agree with experimental data. Thus, consideration weak van der Waals interactions demonstrated be...
Abstract Modifications of local structure at atomic level could precisely and effectively tune the capacity materials, enabling enhancement in catalytic activity. Here we modulate a classical but inert transition metal oxide, tungsten trioxide, to be an efficient electrocatalyst for hydrogen evolution acidic water, which has shown promise as alternative platinum. Structural analyses theoretical calculations together indicate that origin enhanced activity attributed tailored electronic by...
Water-alkaline electrolysis holds a great promise for industry-scale hydrogen production but is hindered by the lack of enabling evolution reaction electrocatalysts to operate at ampere-level current densities under low overpotentials. Here, we report use spillover-bridged water dissociation/hydrogen formation processes occurring synergistically hybridized Ni3S2/Cr2S3 sites incapacitate inhibition effect high-current-density-induced high coverage dissociation site and concurrently promote...
Abstract Organic–inorganic hybrid perovskite solar cells (PSCs) have become a promising candidate in the photovoltaic field due to their high power conversion efficiency and low material cost. However, development of PSCs is limited by poor stability under practical conditions presence oxygen, moisture, sunlight, heat, current–voltage ( I – V ) hysteresis. In particular, hysteretic issue casts doubt on validity performance results that are achieved, making it difficult evaluate authentic...
As an important metal oxide, anatase titanium dioxide has been widely investigated because of its many promising properties for catalysis and photocatalysis. The TiO2 crystals are largely determined by external surfaces exposed. Many efforts have made to improve the percentage high-reactive facets like {001} enhance catalytic properties. This review reports recent progress in designing fabricating dominated TiO2via various strategies including traditional vapor phase epitaxial processes,...
A fluorine-containing hydrophobic Lewis acid is employed as an effective dopant for PTAA to replace state-of-the-art Li-TFSI/<italic>t</italic>-BP in PSCs.
In this work, we developed a general two-step method to prepare molybdenum carbide (Mo2C) nanoparticles stabilized by carbon layer on reduced graphene oxide (RGO) sheets. The Mo2C–RGO hybrid showed excellent performance, which is attributed the intimate interactions between Mo2C and as well outer protection of layer.