One-step synthesis of single-site vanadium substitution in 1T-WS2 monolayers for enhanced hydrogen evolution catalysis DOI Creative Commons
Ali Han, Xiaofeng Zhou, Xijun Wang

et al.

Nature Communications, Journal Year: 2021, Volume and Issue: 12(1)

Published: Jan. 29, 2021

Abstract Metallic tungsten disulfide (WS 2 ) monolayers have been demonstrated as promising electrocatalysts for hydrogen evolution reaction (HER) induced by the high intrinsic conductivity, however, key challenges to maximize catalytic activity are achieving metallic WS with concentration and increasing density of active sites. In this work, single-atom-V catalysts (V SACs) substitutions in 1T-WS (91% phase purity) fabricated significantly enhance HER performance via a one-step chemical vapor deposition strategy. Atomic-resolution scanning transmission electron microscopy (STEM) imaging together Raman spectroscopy confirm atomic dispersion V species on instead energetically favorable 2H-WS monolayers. The growth mechanism SACs@1T-WS is experimentally theoretically demonstrated. Density functional theory (DFT) calculations demonstrate that activated V-atom sites play vital important role enhancing activity. it opens novel path directly synthesize atomically dispersed single-metal metastable materials efficient robust electrocatalysts.

Language: Английский

Production of Hydrogen Peroxide by Photocatalytic Processes DOI Creative Commons
Huilin Hou, Xiangkang Zeng, Xiwang Zhang

et al.

Angewandte Chemie International Edition, Journal Year: 2019, Volume and Issue: 59(40), P. 17356 - 17376

Published: Oct. 1, 2019

Hydrogen peroxide (H2 O2 ) has received increasing attention because it is not only a mild and environmentally friendly oxidant for organic synthesis environmental remediation but also promising new liquid fuel. The production of H2 by photocatalysis sustainable process, since uses water oxygen as the source materials solar light energy. Encouraging processes have been developed in last decade photocatalytic . In this Review we summarize research progress development After brief introduction emphasizing superiorities generation , basic principles establishing an efficient system generating are discussed, highlighting advanced photocatalysts used. This concluded summary outlook future advances emerging field.

Language: Английский

Citations

1043
Ti3C2 Mxene/porous g-C3N4 interfacial Schottky junction for boosting spatial charge separation in photocatalytic H2O2 production DOI
Yang Yang, Zhuotong Zeng, Guangming Zeng

et al.

Applied Catalysis B Environment and Energy, Journal Year: 2019, Volume and Issue: 258, P. 117956 - 117956

Published: July 11, 2019

Language: Английский

Citations

587
Polymer photocatalysts for solar-to-chemical energy conversion DOI
Tanmay Banerjee, Filip Podjaski, Julia Kröger

et al.

Nature Reviews Materials, Journal Year: 2020, Volume and Issue: 6(2), P. 168 - 190

Published: Nov. 5, 2020

Language: Английский

Citations

556
Efficient decontamination of organic pollutants under high salinity conditions by a nonradical peroxymonosulfate activation system DOI
Fei Chen, Lianlian Liu, Jie‐Jie Chen

et al.

Water Research, Journal Year: 2020, Volume and Issue: 191, P. 116799 - 116799

Published: Dec. 30, 2020

Language: Английский

Citations

385
1D porous tubular g-C3N4 capture black phosphorus quantum dots as 1D/0D metal-free photocatalysts for oxytetracycline hydrochloride degradation and hexavalent chromium reduction DOI
Wenjun Wang, Qiuya Niu, Guangming Zeng

et al.

Applied Catalysis B Environment and Energy, Journal Year: 2020, Volume and Issue: 273, P. 119051 - 119051

Published: May 1, 2020

Language: Английский

Citations

377
2D Graphitic Carbon Nitride for Energy Conversion and Storage DOI
Yinghui Wang, Lizhen Liu, Tianyi Ma

et al.

Advanced Functional Materials, Journal Year: 2021, Volume and Issue: 31(34)

Published: June 19, 2021

Abstract Graphitic carbon nitride (g‐C 3 N 4 ) have attracted great attention in the field of energy conversion and storage due to its unique layered structure, tunable bandgap, metal‐free characteristic, high physicochemical stability, easy accessibility. 2D g‐C nanosheets features short charge/mass transfer path, abundant reactive sites functionalization, which are beneficial optimizing their performance different fields. However, reviews comprehensive applications for rare. Herein, this review first introduces properties bulk nanosheets, then summarizes synthetic strategies detail, such as thermal oxidation etching, chemical exfoliation, ultrasonication‐assisted liquid phase vapor deposition, others. Emphasis is focused on rational design development diversified storage, including photocatalytic H 2 evolution, CO reduction, electrocatalytic O alkali‐metal ion batteries, lithium‐metal lithium–sulfur metal‐air supercapacitors. Finally, current challenges perspectives discussed.

Language: Английский

Citations

349
A review on TiO2/g-C3N4 visible-light- responsive photocatalysts for sustainable energy generation and environmental remediation DOI
Rashmi Acharya, Kulamani Parida

Journal of environmental chemical engineering, Journal Year: 2020, Volume and Issue: 8(4), P. 103896 - 103896

Published: March 31, 2020

Language: Английский

Citations

341
Self-assembled Ti3C2 MXene and N-rich porous carbon hybrids as superior anodes for high-performance potassium-ion batteries DOI
Ruizheng Zhao,

Haoxiang Di,

Xiaobin Hui

et al.

Energy & Environmental Science, Journal Year: 2019, Volume and Issue: 13(1), P. 246 - 257

Published: Nov. 20, 2019

The novel PDDA-NPCNs/Ti3C2 hybrids via an electrostatic attraction self-assembly approach effectively accelerate reaction kinetics and improve electrochemical performance as PIBs anodes.

Language: Английский

Citations

315
Emerging Cocatalysts on g‐C3N4 for Photocatalytic Hydrogen Evolution DOI

Qiaohong Zhu,

Zehong Xu,

Bocheng Qiu

et al.

Small, Journal Year: 2021, Volume and Issue: 17(40)

Published: July 28, 2021

Over the past few decades, graphitic carbon nitride (g-C3 N4 ) has arisen much attention as a promising candidate for photocatalytic hydrogen evolution reaction (HER) owing to its low cost and visible light response ability. However, unsatisfied HER performance originated from strong charge recombination of g-C3 severely inhibits further large-scale application . In this case, utilization cocatalysts is novel frontline in -based systems due positive effects on supressing carrier recombination, reducing overpotential, improving activity. This review summarizes some recent advances about high-performance based toward HER. Specifically, functions, design principle, classification, modification strategies cocatalysts, well their intrinsic mechanism enhanced activity are discussed here. Finally, pivotal challenges future developments field proposed.

Language: Английский

Citations

309
Direct Observation of Dynamic Bond Evolution in Single‐Atom Pt/C3N4 Catalysts DOI
Linwen Zhang, Ran Long, Yaoming Zhang

et al.

Angewandte Chemie International Edition, Journal Year: 2020, Volume and Issue: 59(15), P. 6224 - 6229

Published: Jan. 10, 2020

Single-atom catalysts are promising platforms for heterogeneous catalysis, especially clean energy conversion, storage, and utilization. Although great efforts have been made to examine the bonding oxidation state of single-atom before and/or after catalytic reactions, when information about dynamic evolution is not sufficient, underlying mechanisms often overlooked. Herein, we report direct observation charge transfer bond a Pt/C3 N4 catalyst in photocatalytic water splitting by synchronous illumination X-ray photoelectron spectroscopy. Specifically, under light excitation, observed Pt-N cleavage form Pt0 species corresponding C=N reconstruction; these features could be detected on metallic platinum-decorated C3 catalyst. As expected, H2 production activity (14.7 mmol h-1 g-1 ) was enhanced significantly with as compared Pt-C3 (0.74 ).

Language: Английский

Citations

307