Results 151 to 160 of about 4,470,308 (213)

Hydrogen Spillover‐Promoted Hydrogen Evolution onto Copper

ChemCatChem, 2023
AbstractCurrently, green hydrogen harvesting from electrochemical water splitting is overly reliant on noble metals with high catalytic activity but low natural abundance and high cost. As one of potential earth‐abundant alternatives, copper, however, displays a poor hydrogen evolving capability, mainly due to inherently a weak hydrogen binding energy (
Liwen Xing, Yan Liu, Yaqi Liu, Ke Wu, Yongjun Ji   +4 more
openaire   +1 more source

Efficient Photocatalytic Hydrogen Evolution by Modulating Excitonic Effects in Ni‐Intercalated Covalent Organic Frameworks

Advanced Energy Materials, 2023
Covalent organic frameworks (COFs) as appealing platforms have received tremendous interest in the field of photocatalytic H2 evolution owing to their well‐defined structures and tailor‐made function.
Rongchen Shen, Xiu-yu Li, Chaochao Qin, Peng Zhang, Xin Li   +4 more
semanticscholar   +1 more source

Intensifying Hydrogen Spillover for Boosting Electrocatalytic Hydrogen Evolution Reaction

The Chemical Record, 2022
AbstractHydrogen spillover has attracted increasing interests in the field of electrocatalytic hydrogen evolution reaction (HER) in recent years because of their distinct reaction mechanism and beneficial terms for simultaneously weakening the strong hydrogen adsorption on metal and strengthening the weak hydrogen adsorption on support.
Hui Xu, Junru Li, Xianxu Chu
openaire   +2 more sources

Toward Practical High‐Areal‐Capacity Aqueous Zinc‐Metal Batteries: Quantifying Hydrogen Evolution and a Solid‐Ion Conductor for Stable Zinc Anodes

Advances in Materials, 2021
The hydrogen evolution in Zn metal battery is accurately quantified by in situ battery–gas chromatography–mass analysis. The hydrogen fluxes reach 3.76 mmol h−1 cm−2 in a Zn//Zn symmetric cell in each segment, and 7.70 mmol h−1 cm−2 in a Zn//MnO2 full ...
Longtao Ma, Qing Li, Yiran Ying, Feixiang Ma, Shengmei Chen, Yangyang Li, Haitao Huang, C. Zhi   +7 more
semanticscholar   +1 more source

Nanocatalysts for hydrogen evolution reactions

Physical Chemistry Chemical Physics, 2018
Hydrogen fuel is among the cleanest renewable resources and is the best alternative to fossil fuels for the future.
Kasinath Ojha, Soumen Saha, Preeti Dagar, Ashok K. Ganguli   +3 more
openaire   +2 more sources

Interfacial Mediation by Sn And S Vacancies of p‐SnS/n‐ZnIn2S4 for Enhancing Photocatalytic Hydrogen Evolution with New Scheme of Type‐I Heterojunction

Advanced Functional Materials, 2023
The construction of interfacial electric field (IEF) in semiconductor heterojunction is of great significance in boosting photocatalytic hydrogen evolution through efficient separation of photogenerated charge‐carriers.
X. Jia, Yue Lu, Kunrong Du, Huibin Zheng, Liang Mao, Hao Li, Zhaoyu Ma, Rongming Wang, Junying Zhang   +8 more
semanticscholar   +1 more source

Defective Biphenylene as High-Efficiency Hydrogen Evolution Catalysts.

Inorganic Chemistry, 2023
Electrocatalysts play a pivotal role in advancing the application of water splitting for hydrogen production. This research unveils the potential of defective biphenylenes as high-efficiency catalysts for the hydrogen evolution reaction.
Yi Luo, Yiqiang He, Yunfei Ding, Lijie Zuo, Chengyong Zhong, Yinchang Ma, Minglei Sun   +6 more
semanticscholar   +1 more source

Pyrene: Hydrogenation, hydrogen evolution, and π-band model

The Journal of Chemical Physics, 2011
We present a theoretical investigation of the hydrogenation of pyrene and of the subsequent molecular hydrogen evolution. Using density functional theory (DFT) at the GGA-PBE level, the chemical binding of atomic hydrogen to pyrene is found to be exothermic by up to 1.6 eV with a strong site dependence. The edge C atoms are found most reactive.
Rasmussen, Jakob Arendt, Henkelman, Graeme, Hammer, Bjørk   +2 more
openaire   +3 more sources

Unlocking Dynamic Solvation Chemistry and Hydrogen Evolution Mechanism in Aqueous Zinc Batteries.

Journal of the American Chemical Society
Understanding the interfacial hydrogen evolution reaction (HER) is crucial to regulate the electrochemical behavior in aqueous zinc batteries. However, the mechanism of HER related to solvation chemistry remains elusive, especially the time-dependent ...
Xiao-wei Yu, Ming Chen, Zhengang Li, Xi Tan, Haitang Zhang, Junhao Wang, Yonglin Tang, Juping Xu, Wen Yin, Yang Yang, Dongliang Chao, Fei Wang, Yeguo Zou, Guang Feng, Yu Qiao, Haoshen Zhou, Shigang Sun   +16 more
semanticscholar   +1 more source

Gradient Hydrogen Migration Modulated with Self-Adapting S Vacancy in Copper-Doped ZnIn2S4 Nanosheet for Photocatalytic Hydrogen Evolution.

ACS Nano, 2021
It is a challenge to regulate charge flow synergistically at the atomic level to modulate gradient hydrogen migration (H migration) for boosting photocatalytic hydrogen evolution. Herein, a self-adapting S vacancy (Vs) induced with atomic Cu introduction
Shuqu Zhang, Zhifeng Zhang, Yanmei Si, Bing Li, Fang Deng, Lixia Yang, Xia Liu, Weili Dai, S. Luo   +8 more
semanticscholar   +1 more source