A5063671472- Advanced Photocatalysis Techniques
- Electrocatalysts for Energy Conversion
- Microfluidic and Bio-sensing Technologies
- Energetic Materials and Combustion
- Microfluidic and Capillary Electrophoresis Applications
- Copper-based nanomaterials and applications
- Catalytic Processes in Materials Science
- Neuroscience and Neural Engineering
- Nanowire Synthesis and Applications
- Muscle activation and electromyography studies
- Rocket and propulsion systems research
- Privacy-Preserving Technologies in Data
- Gas Sensing Nanomaterials and Sensors
- ZnO doping and properties
- 3D Printing in Biomedical Research
- 2D Materials and Applications
- EEG and Brain-Computer Interfaces
- Recommender Systems and Techniques
- Chalcogenide Semiconductor Thin Films
- TiO2 Photocatalysis and Solar Cells
- Semiconductor materials and interfaces
- MXene and MAX Phase Materials
- Electronic and Structural Properties of Oxides
- Advanced battery technologies research
- Phase-change materials and chalcogenides
Stanford University
2016-2025
Huazhong University of Science and Technology
2022-2025
Central Hospital of Wuhan
2009-2025
Zhejiang Ocean University
2025
Changchun University of Technology
2025
Zhejiang University
2005-2024
First Affiliated Hospital of Zhengzhou University
2021-2024
Beijing University of Posts and Telecommunications
2024
Chongqing University
2014-2023
University of Chinese Academy of Sciences
2023
We report a hierarchically branched TiO2 nanorod structure that serves as model architecture for efficient photoelectrochemical devices it simultaneously offers large contact area with the electrolyte, excellent light-trapping characteristics, and highly conductive pathway charge carrier collection. Under Xenon lamp illumination (UV spectrum matched to AM 1.5G, 88 mW/cm2 total power density), array produces photocurrent density of 0.83 mA/cm2 at 0.8 V versus reversible hydrogen electrode...
We report a scalably synthesized WO3/BiVO4 core/shell nanowire photoanode in which BiVO4 is the primary light-absorber and WO3 acts as an electron conductor. These nanowires achieve highest product of light absorption charge separation efficiencies among BiVO4-based photoanodes to date and, even without added catalyst, produce photocurrent 3.1 mA/cm2 under simulated sunlight incident photon-to-current conversion efficiency ∼60% at 300–450 nm, both potential 1.23 V versus RHE.
Abstract Recently, sulfur (S)-vacancies created on the basal plane of 2 H -molybdenum disulfide (MoS ) using argon plasma exposure exhibited higher intrinsic activity for electrochemical hydrogen evolution reaction than edge sites and metallic 1 T -phase MoS catalysts. However, a more industrially viable alternative to desulfurization process is needed. In this work, we introduce scalable route towards generating S-vacancies desulfurization. Even though atoms are known be stable inert, find...
Electrochemical production of hydrogen peroxide (H2O2) from water oxidation could provide a very attractive route to locally produce chemically valuable product an abundant resource. Herein using density functional theory calculations, we predict trends in activity for towards H2O2 evolution on four different metal oxides, i.e., WO3, SnO2, TiO2 and BiVO4. The predicted trend is further confirmed by our experimental measurements. Moreover, identify that BiVO4 has the best generation amount...
Abstract The isolation of the two-dimensional semiconductor molybdenum disulphide introduced a new optically active material possessing band gap that can be facilely tuned via elastic strain. As an atomically thin membrane with exceptional strength, monolayer subjected to biaxial strain embed wide variations overlapping visible light spectrum, calculations showing modified electronic potential emanating from point-induced tensile perturbations mimics Coulomb in mesoscopic atom. Here we...
Nanowires represent a promising class of materials for exploring new concepts in solar energy conversion. Here we report the first experimental realization axial modulation-doped p-i-n and tandem p-i-n(+) -p(+)-i-n silicon nanowire (SiNW) photovoltaic elements. Scanning electron microscopy images selectively etched nanowires demonstrate excellent synthetic control over doping lengths distinct regions diode structures. Current-voltage (I-V) characteristics reveal clear reproducible p-n SiNW...
A BiVO<sub>4</sub> with a preferred [001] orientation and exposed {001} facets were grown epitaxially on FTO <italic>via</italic> laser ablation, achieving the state-of-the-art photoelectrochemical performance for solar water-oxidation.
Molybdenum disulfide (MoS2), with its active edge sites, is a proposed alternative to platinum for catalyzing the hydrogen evolution reaction (HER). Recently, inert basal plane of MoS2 was successfully activated and optimized excellent intrinsic HER activity by creating further straining sulfur (S) vacancies. Nevertheless, little known about kinetics those S vacancies additional effects from elastic tensile strain. Herein, scanning electrochemical microscopy used determine kinetic data both...
Electrochemical synthesis of hydrogen peroxide (H2O2) via two-electron water oxidation reaction (2e-WOR) is an ideal process for delocalized production cleaning and other applications. Previously reported catalysts have limited activity selectivity, imposing a bottleneck broad adoption this technology. We identify ZnO as new stable, nontoxic, active, selective catalyst 2e-WOR to generate H2O2. Using density functional theory calculations, we propose that the (1010) facet effective confirm...
Photoelectrochemical oxidation of water presents a pathway for sustainable production hydrogen peroxide (H2O2). Two-electron toward H2O2, however, competes with the popular four-electron process to form oxygen and one-electron OH radical. To date, bismuth vanadate (BiVO4) has been shown exhibit promising selectivity especially under illumination, but it suffers from high overpotential notoriously poor stability. Herein, using density functional theory calculations, we predict that doping...
Co3O4 is an attractive earth-abundant catalyst for CO oxidation, and its high catalytic activity has been attributed to Co3+ cations surrounded by Co2+ ions. Hence, the majority of efforts enhancing have focused on exposing more surface. Herein, we enhance replacing ions in lattice with Cu2+. Polycrystalline nanowires which substituted Cu2+ are synthesized using a modified hydrothermal method. The Cu-substituted Co3O4_Cux polycrystalline exhibit much higher oxidation than pure similar those...
The two-electron water oxidation reaction (2e-WOR) is a promising route for distributed electrochemical synthesis of hydrogen peroxide (H2O2), an effective and green oxidizer, bleaching agent, antiseptic. To date, the best electrocatalyst 2e-WOR, in terms selectivity against competing 4e-WOR to form O2, BiVO4. Nevertheless, BiVO4 unstable has high overpotential ∼340 mV at 0.2 mA/cm2 2e-WOR. Herein, we use density functional theory identify new, efficient, selective, stable i.e., ternary...
Developing stable and efficient electrocatalysts is vital for boosting oxygen evolution reaction (OER) rates in sustainable hydrogen production. High-entropy oxides (HEOs) consist of five or more metal cations, providing opportunities to tune their catalytic properties toward high OER efficiency. This work combines theoretical experimental studies scrutinize the activity stability spinel-type HEOs. Density functional theory confirms that randomly mixed sites show thermodynamic stability,...
After being immersed in water, oxalic acid (OA) or salicylic (SA) aqueous solutions, mango ( Mangifera indica L. cv. Zill) fruit were stored at 14°C 5°C with shelf life to determine the effects of exogenous OA SA on reactive oxygen metabolism, quality and chilling injury (CI) fruit. Mango CI could be reduced by treatments. Compared that control, accompanied alleviated life, treated had significantly higher reduction states ascorbate glutathione. Moreover, showed lower superoxide anion...
We report a new flame reduction method to generate controllable amount of oxygen vacancies in TiO2 nanowires that leads nearly three times improvement the photoelectrochemical (PEC) water-splitting performance. The has unique advantages high temperature (>1000 °C), ultrafast heating rate, tunable environment, and open-atmosphere operation, so it enables rapid formation (less than one minute) without damaging nanowire morphology crystallinity is even applicable various metal oxides....
For a hematite (α‐Fe 2 O 3 ) photoanode, multiple electron/hole recombination pathways occurring in the bulk, interfaces, and surfaces largely limit its low‐bias performance (low photocurrent density at potential) for photoelectrochemical water splitting. Here, facile rapid three‐step approach is reported to simultaneously reduce these recombinations nanorods (NRs) array leading greatly improved low bias potential. First, flame‐doping enables high concentration of Ti doping without hampering...