Results 301 to 310 of about 221,552 (360)

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
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Hydrogen evolution by several algae

Planta, 1970
Out of 33 strains of unicellular algae examined, H2 evolution was observed only in species of Chlamydomonas, Chlorella and Scenedesmus. While the photoevolution of H2 by these algae was generally stimulated both by an organic substrate and by the uncoupler CCCP(1), response to DCMU varied. On the basis of the response to DCMU, it was concluded that the
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The Photosynthetic Unit of Hydrogen Evolution

Science, 1977
A study of the absolute photoproduction of hydrogen by autotrophically grown Chlorella vulgaris with single-turnover flashes of light indicates that (i) while the Emerson and Arnold photosynthetic unit has the value chlorophyll : oxygen ≈ 1700 : 1, the hydrogen analog of this unit has the value chlorophyll ...
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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
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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
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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
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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; id_orcid 0000-0002-7849-6347   +2 more
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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
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Recent Advances in Carbon‐Supported Noble‐Metal Electrocatalysts for Hydrogen Evolution Reaction: Syntheses, Structures, and Properties

Advanced Energy Materials, 2022
The electrochemical hydrogen evolution reaction (HER) that converts renewable electricity into storable hydrogen, a sustainable and clean energy carrier, provides a promising method to mitigate the energy crisis and environmental pollution.
Yuhang Liu, Qilun Wang, Jincheng Zhang, Jie Ding, Yaqi Cheng, Tian-you Wang, Jing Li, Fangxin Hu, Hong Bin Yang, Bin Liu   +9 more
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Hydrogen Spillover Phenomenon at the Interface of Metal-Supported Electrocatalysts for Hydrogen Evolution.

Accounts of Chemical Research
ConspectusHydrogen spillover, as a well-known phenomenon for thermal hydrogenation, generally involves the migration of active hydrogen on the surface of metal-supported catalysts.
Jiayuan Li, Yuanyuan Ma, J. C. Ho, Yongquan Qu   +3 more
semanticscholar   +1 more source