A5060242172- Advanced Photocatalysis Techniques
- Gas Sensing Nanomaterials and Sensors
- Copper-based nanomaterials and applications
- Electronic and Structural Properties of Oxides
- ZnO doping and properties
- TiO2 Photocatalysis and Solar Cells
- Perovskite Materials and Applications
- Covalent Organic Framework Applications
- Ammonia Synthesis and Nitrogen Reduction
- Graphene research and applications
- Advanced Nanomaterials in Catalysis
- Electrocatalysts for Energy Conversion
- Advanced battery technologies research
- Quantum Dots Synthesis And Properties
- Nanopore and Nanochannel Transport Studies
- Semiconductor materials and devices
- Fuel Cells and Related Materials
- Hydrogen Storage and Materials
- Conducting polymers and applications
- Ga2O3 and related materials
- Catalytic Processes in Materials Science
- Electrochemical Analysis and Applications
- Electrohydrodynamics and Fluid Dynamics
- Nanomaterials for catalytic reactions
- Membrane Separation Technologies
Jiangxi Normal University
2023-2024
University of Chicago
2019-2024
Florida Institute of Technology
2024
University of California, Riverside
2024
Washington University in St. Louis
2024
Guangdong University of Technology
2018-2020
Ben-Gurion University of the Negev
2017-2020
The Technological College of Beer Sheva
2018-2019
Center for Nanoscale Science and Technology
2019
Institute for Molecular Medicine
2019
Abstract Graphitic carbon nitride (g‐CN) has emerged as a promising material for energy‐related applications. However, exploitation of g‐CN in practical devices is still limited owing to difficulties fabricating films with adjustable properties and high surface area. A general simple pathway reported grow highly porous large‐scale controllable chemical photophysical on various substrates using the doctor blade technique. The growth films, ascribed formation supramolecular paste, comprises...
Abstract A general synthesis of carbon nitride (CN) films with extended optical absorption, excellent charge separation under illumination, and outstanding performance as a photoanode in water-splitting photoelectrochemical cells is reported. To this end, we introduced universal method to rapidly grow CN monomers directly from hot saturated solution on various substrates. Upon calcination, highly uniform layer tuned structural photophysical properties intimate contact the substrate obtained....
Identifying highly selective catalysts and accurately measuring NH3 yield without false-positives from contaminations remain two challenges in electrochemical nitrogen reduction reaction (NRR). Here, we report N-defective carbon nitride grown on paper (CN/C) as a electrocatalyst. The was determined reliably by the slope of mNH3-time plot rather than averaging accumulated amount over time. Results showed as-synthesized CN/C600 (synthesized at 600 °C) with higher density C=N-C N2C vacancies...
A simple method to grow a closely packed carbon nitride (CN) film by the crystallization of CN monomers on conductive substrate followed thermal condensation is reported. The as-synthesized exhibits excellent performance as photoanode material in photoelectrochemical cell. Detailed (photo)electrochemical and transient absorption measurements indicate charge separation properties, high hole-extraction efficiency (up 50 %), long electron lifetime, low amount defect states below conduction...
Abstract Polymeric carbon nitride (CN) has emerged as a promising semiconductor for energy‐related applications. However, its utilization in photo‐electrochemical cells is still very limited owing to poor electron–hole separation efficiency, short electron diffusion length, and low absorption coefficient. Here the synthesis of highly porous nitride/reduced graphene oxide (CN‐rGO) film with good properties reported. The CN‐rGO exhibits long length high electrochemical active surface area,...
Abstract Free standing centimeter‐long 1D nanostructures are highly attractive for electronic and optoelectronic devices due to their unique photophysical electrical properties. Here a simple, large‐scale synthesis of carbon nitride (CN) needles with tunable photophysical, electric, catalytic properties is reported. Successful growth ultralong acquired by the utilization organic crystal precursors comprised CN monomers as reactants. Upon calcination at high temperatures, shape starting fully...
The valance of Mo is critical for FeMo cofactor in ambient ammonia synthesis. However, the valence effect has not been well studied heterogeneous nanoparticle catalysts electrochemical nitrogen reduction reaction (NRR) due to dissolution as MoO42- alkaline electrolytes. Here, a MoO2+x catalyst enriched with surface Mo6+ reported. stabilized by native oxide layer prevent corrosion and its speciation identified (MoO3 )n clusters. This suppresses hydrogen evolution significantly promotes...
A CuO nanocrystal network covalently templated to oxidized carbon nanotubes creates a p-type sensing material for ethanol and humidity at ambient temperatures.
Titanium dioxide (TiO2) nanostructures and TiO2/graphene nanocomposites are intensively studied materials for energy conversion, storage, organic contaminant photodegradation. However, composites, impermeability across the graphitic basal plane electrolytes, metal ions, gas molecules hinders their practical applications. Herein we report a simple, environmentally friendly synthetic route mesoporous anatase TiO2 nanospindles, successfully apply this method to obtain in situ grown...
Efficient oil/water separation tackles various issues in occasions of oil leakage and discharge, such as environmental pollution, recollection the oil, saving water. Herein, a compact superhydrophobic/superoleophilic graphitic carbon nitride nanolayer coated on fiber networks (CNBA/CF) is designed synthesized for efficient gravity-driven separation. The CNBA/CF shows excellent absorption an impressive filtration performance. flux reaches state-of-art value 4.29 × 105 L/m2/h dichloromethane...
The photocatalytic two-electron oxygen reduction offers a sustainable method to produce hydrogen peroxide (H2O2). efficiency of carbon nitride (CN) in this process is hindered by the serious charge recombination...
The favorable crystal surface exposure of substrate benefits the growth semiconductor film with strong adhesion and fast charge transfer at interface. Herein, (211) SnO2:F (FTO)...
A new and simple synthetic route is introduced to covalently functionalize the carbon nitride (CN) framework by implementation of halogenated phenyl groups (Cl, Br I), which serve as a chemically reactive center, within CN framework. The covalent modification demonstrated here substituting tert-butyl propionate onto modified-CN through Suzuki reductive-Heck cross-coupling reactions, respectively. effective functionalization leads facile exfoliation into thinner layers greatly enhances...
Abstract Low‐cost and high‐efficiency electrocatalysts for the hydrogen evolution reaction (HER) are a key constituent of low‐carbon industrial economy based on intermittent energy production in near future. A facile wet‐chemistry strategy has been developed synthesis porous Ru layer deposited onto Ni foam (NF) as competitive candidate HER over whole pH range, especially under economical alkaline conditions. The catalyst shows outstanding performance, which stems from porosity layer,...
Compared to the fast electron transport in perovskite and rapid injection from TiO<sub>2</sub>nanoparticle scaffold, slower rate mesoporous TiO<sub>2</sub>is reported be a hindrance factor for power conversion efficiency.
Rare earth elements (REEs), critical to modern industry, are difficult separate and purify, given their similar physicochemical properties originating from the lanthanide contraction. Here, we systematically study transport of ions (Ln 3+ ) in artificially confined angstrom-scale two-dimensional channels using MoS 2 -based building blocks an aqueous environment. The results show that uptake permeability Ln assume a well-defined volcano shape peaked at Sm . This behavior is rooted tradeoff...
We show that a single MOF-based electrode can act as both photo-anode and photo-cathode in photo-electrochemical cell.
Herein we report a facile method to grow an ordered carbon nitride (CN) layer with improved charge separation and transfer properties under illumination.
Freestanding electrodes composed of 2D materials are highly attractive for many applications such as batteries, membranes, actuators, optical devices, and other energy-related devices owing to their low price, unique structure, high specific surface area, excellent mechanical electrical properties. Here, we report the facile large-scale fabrication freestanding hierarchical carbon nitride/carbon (CN/C) by in situ crystallization CN precursors on conductive paper, followed thermal annealing....
The ramping solar energy to electricity conversion efficiencies of hybrid organic‐inorganic perovskite cells during the last five years have opened new doors low‐cost energy. record power efficiency has climbed 19.3% in August 2014 and then jumped 20.1% November. In this review, main achievements for categorized from a viewpoint device structure are overviewed. challenges prospects future development field also briefly presented.
Abstract Graphitic carbon nitride (g‐CN) has emerged as a promising material for energy‐related applications. However, exploitation of g‐CN in practical devices is still limited owing to difficulties fabricating films with adjustable properties and high surface area. A general simple pathway reported grow highly porous large‐scale controllable chemical photophysical on various substrates using the doctor blade technique. The growth films, ascribed formation supramolecular paste, comprises...