scholarly journals Structural dependence of electrosynthesized cobalt phosphide/black phosphorus pre-catalyst for oxygen evolution in alkaline media

Nanoscale ◽  
2021 ◽  
Author(s):  
He Xiao ◽  
Xiaoling Du ◽  
Man Zhao ◽  
Ya Li ◽  
Tianjun Hu ◽  
...  

The integration of black phosphorus (BP) with metal phosphides is known to produce high-performance electrocatalysts for oxygen evolution reduction (OER), although their stability and the degradation of their lone pairs...

Author(s):  
Ping Yan ◽  
Qian Liu ◽  
Hui Zhang ◽  
Luchun Qiu ◽  
Hao Bin Wu ◽  
...  

Transition metal phosphides (TMPs) have been reported as efficient pre-catalysts for oxygen evolution reaction (OER) in alkaline media. The in-situ generated metal oxyhydroxides on the surface of TMPs serve as...


2021 ◽  
Author(s):  
Xiaomei Xu ◽  
Qingqing An ◽  
Hao Sun ◽  
Yongchun Wang ◽  
Wenhui Shang ◽  
...  

Ethylene glycol was used as an inexpensive and nontoxic reducing agent to synthesize a Cu2O–reduced graphene oxide (Cu2O–rGO) composite. This material exhibited good electrocatalytic oxygen generation performance.


Catalysts ◽  
2019 ◽  
Vol 9 (6) ◽  
pp. 564 ◽  
Author(s):  
Kyoung Ryeol Park ◽  
Jae Eun Jeon ◽  
Ghulam Ali ◽  
Yong-Ho Ko ◽  
Jaewoong Lee ◽  
...  

High-performance oxygen evolution reaction (OER) electrocatalysts are needed to produce hydrogen for energy generation through a carbon-free route. In this work, the solution combustion synthesis (SCS) method was employed to synthesize mixed phases of Co- and Mn-based oxides, and the relationships between the crystalline structure and the catalytic properties in the mixed phases were established. The mixed phases of Co- and Mn-based oxides shows promising OER properties, such as acceptable overpotential (450 mV for 10 mA∙cm−2) and Tafel slope (35.8 mV∙dec−1), highlighting the use of the mixed phases of Co- and Mn-based oxides as a new efficient catalysts for water splitting. Electronic structure of the mixed phases of Co- and Mn based oxides is studied in detail to give insight for the origin of high catalytic activities. In addition, excellent long-term stability for OER in alkaline media is achieved for the mixed phase of Co- and Mn based oxides.


2019 ◽  
Vol 808 ◽  
pp. 151767 ◽  
Author(s):  
Lei Lin ◽  
Qiang Fu ◽  
Yaping Han ◽  
Jianing Wang ◽  
Xingquan Zhang ◽  
...  

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