Rare-earth La-doped VS2−xfor electrochemical nitrate reduction to ammonia DOI
Guohui Wang, Peng Shen, Kai Chen

et al.

Inorganic Chemistry Frontiers, Journal Year: 2023, Volume and Issue: 10(7), P. 2014 - 2021

Published: Jan. 1, 2023

A rare-earth La-doped VS 2−x is reported as an effective catalyst for electrocatalytic nitrate-to-ammonia conversion, which attributed to the synergy of La-dopants and S-vacancies promote NO 3 RR suppress hydrogen evolution.

Language: Английский

Advances in the Electrocatalytic Hydrogen Evolution Reaction by Metal Nanoclusters‐based Materials DOI

Junyang Ding,

Hui Yang, Shusheng Zhang

et al.

Small, Journal Year: 2022, Volume and Issue: 18(52)

Published: Oct. 26, 2022

Abstract With the development of renewable energy systems, clean hydrogen is burgeoning as an optimal alternative to fossil fuels, in which its application promising retarding global and environmental crisis. The evolution reaction (HER), capable producing high‐purity rapidly electrocatalytic water splitting, has received much attention. Abundant research about HER been done, focusing on advanced electrocatalyst design with high efficiency robust stability. As potential catalysts, metal nanoclusters (MNCs) have studied extensively. They are composed several a hundred atoms, sizes being comparable Fermi wavelength electrons, that is, < 2.0 nm. Different from atoms/nanoparticles, they exhibit unique catalytic properties due their quantum size effect low‐coordination environment. In this review, activity‐enhancing approaches MNCs applied electrocatalysis mainly summarized. Furthermore, recent progress classified different stabilization strategies, freestanding MNCs, organic, carbon supports, introduced. Finally, current challenges deficiencies these for prospected.

Language: Английский

Citations

123
Iridium single-atom catalyst for highly efficient NO electroreduction to NH3 DOI
Kai Chen, Guohui Wang, Yali Guo

et al.

Nano Research, Journal Year: 2023, Volume and Issue: 16(7), P. 8737 - 8742

Published: March 8, 2023

Language: Английский

Citations

120
p-Block Antimony Single-Atom Catalysts for Nitric Oxide Electroreduction to Ammonia DOI
Kai Chen, Ying Zhang,

Jiaqi Xiang

et al.

ACS Energy Letters, Journal Year: 2023, Volume and Issue: 8(3), P. 1281 - 1288

Published: Feb. 3, 2023

Electrocatalytic NO reduction to NH3 (NORR) offers a prospective approach attain both harmful removal and efficient electrosynthesis. Main-group p-block metals are promising NORR candidates but still lack adequate exploration. Herein, Sb single atoms confined in amorphous MoO3 (Sb1/a-MoO3) designed as an catalyst, exhibiting the highest yield rate of 273.5 μmol h–1 cm–2 NO-to-NH3 Faradaic efficiency 91.7% at −0.6 V vs RHE. In situ spectroscopic characterizations theoretical computations reason that outstanding performance Sb1/a-MoO3 arises from isolated Sb1 sites, which can optimize adsorption *NO/*NHO lower reaction energy barriers simultaneously exhibit higher affinity than H2O/H species. Moreover, our strategy be extended prepare Bi1/a-MoO3, showing high property, demonstrating immense potential metal single-atom catalysts toward high-performing electrocatalysis.

Language: Английский

Citations

116
Nitrogen-doped Fe2O3/NiTe2 as an excellent bifunctional electrocatalyst for overall water splitting DOI
Wenjing Li,

Yuqing Deng,

Li Luo

et al.

Journal of Colloid and Interface Science, Journal Year: 2023, Volume and Issue: 639, P. 416 - 423

Published: Feb. 16, 2023

Language: Английский

Citations

91
Active-site and interface engineering of cathode materials for aqueous Zn—gas batteries DOI
Wenxian Liu,

Jinxiu Feng,

Tianran Wei

et al.

Nano Research, Journal Year: 2022, Volume and Issue: 16(2), P. 2325 - 2346

Published: Sept. 27, 2022

Language: Английский

Citations

88
Cooperation between Dual Metal Atoms and Nanoclusters Enhances Activity and Stability for Oxygen Reduction and Evolution DOI
Zhe Wang, Xiaoyan Jin,

Ruojie Xu

et al.

ACS Nano, Journal Year: 2023, Volume and Issue: 17(9), P. 8622 - 8633

Published: April 27, 2023

We have achieved the synthesis of dual-metal single atoms and atomic clusters that co-anchor on a highly graphitic carbon support. The catalyst comprises Ni4 (and Fe4) nanoclusters located adjacent to corresponding NiN4 FeN4) single-atom sites, which is verified by systematic X-ray absorption characterization density functional theory calculations. A distinct cooperation between Fe4 (Ni4) FeN4 (NiN4) sites optimizes adsorption energy reaction intermediates reduces barrier potential-determining steps. This exhibits enhanced oxygen reduction evolution activity long-cycle stability compared counterparts without commercial Pt/C. fabricated Zn-air batteries deliver high power long-term cyclability, demonstrating their prospects in storage device applications.

Language: Английский

Citations

84
Electronic structure regulation in the design of low-cost efficient electrocatalysts: From theory to applications DOI Creative Commons
Ruiqi Cheng, Yulin Min, Huanxin Li

et al.

Nano Energy, Journal Year: 2023, Volume and Issue: 115, P. 108718 - 108718

Published: July 17, 2023

Electrocatalysts play a pivotal role in reducing the reaction barriers for key reactions such as oxygen reduction (ORR), evolution (OER), and hydrogen (HER), which are essential development of environment-friendly energy conversion devices including metal air batteries (MABs), proton exchange membrane fuel cells (PEMFCs), oxyhydrogen (OFC), water electrolyzers (WE). Despite acknowledged effectiveness noble metals (Pt, Ir, Ru-based) electrocatalysts, their high cost scarcity greatly limit large-scale application. Thus, there is an urgent need to design low precious loading/noble metal-free electrocatalysts. The electronic structure plays crucial determining efficiency electron transfer during electrochemical reactions. Modifying can facilitate charge processes or create efficient active sites with barriers, both beneficial designing electrocatalysts catalytic activity. In this article, we review strategies modifying materials without introducing other phases (known self-modification) multi-phase modification). Specifically, self-modification heteroatom doping, edge/vacancy engineering, functional group introducing, tuning exposed crystal planes, modification regarding heterostructure creation analyzed detail. These useful that reinforce process Additionally, two approaches accelerating on electrode bind-free/integrated constructing assembly, have also been discussed pushing forward practical At last, provide comprehensive summary future perspectives self-modification/multi-phase application these low-cost article.

Language: Английский

Citations

83
Phosphorus vacancies enriched cobalt phosphide embedded in nitrogen doped carbon matrix enabling seawater splitting at ampere-level current density DOI
Xuanyi Wang, Xiaobin Liu, Siqi Wu

et al.

Nano Energy, Journal Year: 2023, Volume and Issue: 109, P. 108292 - 108292

Published: Feb. 18, 2023

Language: Английский

Citations

77
Au nanoclusters anchored on TiO2 nanosheets for high-efficiency electroreduction of nitrate to ammonia DOI
Miaosen Yang, Tianran Wei,

Jia He

et al.

Nano Research, Journal Year: 2023, Volume and Issue: 17(3), P. 1209 - 1216

Published: Aug. 14, 2023

Language: Английский

Citations

58
Designing heterostructured FeP—CoP for oxygen evolution reaction: Interface engineering to enhance electrocatalytic performance DOI
Shuang Hou,

Ansai Zhang,

Qi Zhou

et al.

Nano Research, Journal Year: 2023, Volume and Issue: 16(5), P. 6601 - 6607

Published: Jan. 3, 2023

Language: Английский

Citations

49