Phase reconfiguration of multivalent nickel sulfides in hydrogen evolution

2022 ◽  
Author(s):  
Yu Sun ◽  
Jing Wu ◽  
Zheng Zhang ◽  
Qingliang Liao ◽  
Suicai Zhang ◽  
...  
Keyword(s):  
Hydrogen Evolution ◽  
Life Time ◽  
Dynamic Structure ◽  
Time Dynamic ◽  
Structure Activity

We report a universal phase reconfiguration phenomenon and a doping strategy to enhance the activity of multivalent nickel sulfides in hydrogen evolution. Based on these, a life-time dynamic structure-activity correlation has been established.

scholarly journals Electronic metal–support interaction modulates single-atom platinum catalysis for hydrogen evolution reaction

2021 ◽  
Vol 12 (1) ◽  
Author(s):  
Yi Shi ◽  
Zhi-Rui Ma ◽  
Yi-Ying Xiao ◽  
Yun-Chao Yin ◽  
Wen-Mao Huang ◽  
...  
Keyword(s):  
Hydrogen Evolution ◽  
Hydrogen Evolution Reaction ◽  
Structure Activity Relationship ◽  
Atomic Level ◽  
Single Atom ◽  
Activity Relationship ◽  
Support Interaction ◽  
Structure Activity ◽  
Metal Support Interaction ◽  
Metal Support

AbstractTuning metal–support interaction has been considered as an effective approach to modulate the electronic structure and catalytic activity of supported metal catalysts. At the atomic level, the understanding of the structure–activity relationship still remains obscure in heterogeneous catalysis, such as the conversion of water (alkaline) or hydronium ions (acid) to hydrogen (hydrogen evolution reaction, HER). Here, we reveal that the fine control over the oxidation states of single-atom Pt catalysts through electronic metal–support interaction significantly modulates the catalytic activities in either acidic or alkaline HER. Combined with detailed spectroscopic and electrochemical characterizations, the structure–activity relationship is established by correlating the acidic/alkaline HER activity with the average oxidation state of single-atom Pt and the Pt–H/Pt–OH interaction. This study sheds light on the atomic-level mechanistic understanding of acidic and alkaline HER, and further provides guidelines for the rational design of high-performance single-atom catalysts.

In Situ Identifying the Dynamic Structure behind Activity of Atomically Dispersed Platinum Catalyst toward Hydrogen Evolution Reaction

Small ◽  
2021 ◽  
Vol 17 (16) ◽  
pp. 2005713
Author(s):  
Jiali Wang ◽  
Hui‐Ying Tan ◽  
Tsung‐Rong Kuo ◽  
Sheng‐Chih Lin ◽  
Chia‐Shuo Hsu ◽  
...  
Keyword(s):  
Hydrogen Evolution ◽  
Hydrogen Evolution Reaction ◽  
Platinum Catalyst ◽  
Dynamic Structure

Heterogeneous Co–N/C Electrocatalysts with Controlled Cobalt Site Densities for the Hydrogen Evolution Reaction: Structure–Activity Correlations and Kinetic Insights

ACS Catalysis ◽  
2018 ◽  
Vol 9 (1) ◽  
pp. 83-97 ◽  
Author(s):  
Young Jin Sa ◽  
Sung O Park ◽  
Gwan Yeong Jung ◽  
Tae Joo Shin ◽  
Hu Young Jeong ◽  
...  
Keyword(s):  
Hydrogen Evolution ◽  
Hydrogen Evolution Reaction ◽  
Structure Activity

Penicillin's catalytic mechanism revealed by inelastic neutrons and quantum chemical theory

2013 ◽  
Vol 15 (47) ◽  
pp. 20447-20455 ◽  
Author(s):  
Zoltán Mucsi ◽  
Gregory A. Chass ◽  
Péter Ábrányi-Balogh ◽  
Balázs Jójárt ◽  
De-Cai Fang ◽  
...  
Keyword(s):  
Quantum Chemical ◽  
Catalytic Mechanism ◽  
Dynamic Structure ◽  
Structure Activity Relationship ◽  
Enzyme Inactivation ◽  
Activity Relationship ◽  
Chemical Theory ◽  
Structure Activity ◽  
Bacterial Enzyme ◽  
Geometric Changes

Penicillin's dynamic structure–activity relationship resolved by inelastic neutrons kinetics, NMR and QM/MM-theory. Self-activating geometric changes catalyse bacterial enzyme inactivation.

scholarly journals Theoretical evaluation of the structure–activity relationship in graphene-based electrocatalysts for hydrogen evolution reactions

RSC Advances ◽  
2017 ◽  
Vol 7 (43) ◽  
pp. 27033-27039 ◽  
Author(s):  
Chi Ho Lee ◽  
Byeongsun Jun ◽  
Sang Uck Lee
Keyword(s):  
Hydrogen Evolution ◽  
Hydrogen Evolution Reaction ◽  
Electrocatalytic Activity ◽  
Structure Activity Relationship ◽  
Activity Relationship ◽  
Theoretical Evaluation ◽  
Structure Activity ◽  
Hydrogen Evolution Reactions ◽  
The Relationship

We systematically analyzed the relationship between structure and electrocatalytic activity of heteroatom-doped graphenes (GXs, where G and X represent graphene and the heteroatom dopant) for the hydrogen evolution reaction (HER).

Effect of Short Reducing Pulses on the Dynamic Structure, Activity, and Stability of Pd/Al2O3 for Wet Lean Methane Oxidation

ACS Catalysis ◽  
2021 ◽  
pp. 4870-4879
Author(s):  
Tanja Franken ◽  
Maneka Roger ◽  
Andrey W. Petrov ◽  
Adam H. Clark ◽  
Miren Agote-Arán ◽  
...  
Keyword(s):  
Methane Oxidation ◽  
Dynamic Structure ◽  
Structure Activity
Sign in / Sign up

Export Citation Format

Share Document