Single-atom Ru anchored in nitrogen-doped MXene (Ti3C2Tx) as an efficient catalyst for the hydrogen evolution reaction at all pH values

2020 ◽  
Vol 8 (46) ◽  
pp. 24710-24717
Author(s):  
Haigang Liu ◽  
Zhe Hu ◽  
Qinglei Liu ◽  
Peng Sun ◽  
Yongfei Wang ◽  
...  

A catalyst consisting of single-atom Ru sites supported on an N-MXene (Ti3C2Tx) was developed for pH-universal hydrogen generation based on theoretical predictions, whose performances are comparable to and better than those of Pt/C.

2018 ◽  
Vol 6 (4) ◽  
pp. 1376-1381 ◽  
Author(s):  
You Xu ◽  
Shuli Yin ◽  
Chunjie Li ◽  
Kai Deng ◽  
Hairong Xue ◽  
...  

A NiRu@N–C hybrid is fabricated and tested as an efficient catalyst for the hydrogen evolution reaction in a wide pH range.


2018 ◽  
Vol 54 (71) ◽  
pp. 9901-9904 ◽  
Author(s):  
Ting Ouyang ◽  
An-Na Chen ◽  
Zhen-Zhao He ◽  
Zhao-Qing Liu ◽  
Yexiang Tong

Atomically dispersed Ni in β-Mo2C (Ni/β-Mo2C) is designed as an efficient catalyst for the HER at all pH values. The remarkable electrochemical properties of Ni/β-Mo2C are mainly attributed to the synergistic effect between atomically dispersed Ni species and β-Mo2C.


2021 ◽  
pp. 100695
Author(s):  
Jianxiong Gao ◽  
Yajing Zhang ◽  
Xingkun Wang ◽  
Lujian Jia ◽  
Heqing Jiang ◽  
...  

2021 ◽  
Vol 12 (1) ◽  
Author(s):  
Yi Shi ◽  
Zhi-Rui Ma ◽  
Yi-Ying Xiao ◽  
Yun-Chao Yin ◽  
Wen-Mao Huang ◽  
...  

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.


Author(s):  
Lifang Chen ◽  
Rizwan Ur Rehman Sagar ◽  
Jun Chen ◽  
Juan Liu ◽  
Sehrish Aslam ◽  
...  

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