Direct conversion of metal organic frameworks into ultrafine phosphide nanocomposites in multicomponent plasma for wide pH hydrogen evolution

2020 ◽  
Vol 8 (20) ◽  
pp. 10402-10408 ◽  
Author(s):  
Yanru Guo ◽  
Chunmei Zhang ◽  
Yong Wu ◽  
Hongen Yu ◽  
Shaojun Zhang ◽  
...  

Multicomponent NH3 plasma enhances the carbon removal effect and activates red phosphorus to PH radicals, resulting in simultaneous MOF decomposition and phosphorization at low temperature.

2021 ◽  
Author(s):  
Lili Fan ◽  
Zixi Kang ◽  
Mengfei Li ◽  
Daofeng Sun

Among various kinds of materials that have been investigated as electrocatalysts for hydrogen evolution reaction (HER), oxygen evolution reaction (OER) and oxygen reduction reaction (ORR), metal-organic frameworks (MOFs) emerge as...


2021 ◽  
Vol 12 (1) ◽  
Author(s):  
Yamei Sun ◽  
Ziqian Xue ◽  
Qinglin Liu ◽  
Yaling Jia ◽  
Yinle Li ◽  
...  

AbstractDeveloping high-performance electrocatalysts toward hydrogen evolution reaction is important for clean and sustainable hydrogen energy, yet still challenging. Herein, we report a single-atom strategy to construct excellent metal-organic frameworks (MOFs) hydrogen evolution reaction electrocatalyst (NiRu0.13-BDC) by introducing atomically dispersed Ru. Significantly, the obtained NiRu0.13-BDC exhibits outstanding hydrogen evolution activity in all pH, especially with a low overpotential of 36 mV at a current density of 10 mA cm−2 in 1 M phosphate buffered saline solution, which is comparable to commercial Pt/C. X-ray absorption fine structures and the density functional theory calculations reveal that introducing Ru single-atom can modulate electronic structure of metal center in the MOF, leading to the optimization of binding strength for H2O and H*, and the enhancement of HER performance. This work establishes single-atom strategy as an efficient approach to modulate electronic structure of MOFs for catalyst design.


2021 ◽  
Vol 125 (37) ◽  
pp. 20320-20330
Author(s):  
Xianxian Kong ◽  
Qianqian Pan ◽  
Shuang Song ◽  
Zhiqiao He ◽  
Tao Zeng ◽  
...  

2019 ◽  
Vol 25 (20) ◽  
pp. 5246-5250
Author(s):  
Yingnan Zhao ◽  
Xiao Han ◽  
Feihu Yu ◽  
Donghui Wei ◽  
Qing Cheng ◽  
...  

2019 ◽  
Vol 7 (14) ◽  
pp. 8129-8135 ◽  
Author(s):  
Yanru Guo ◽  
Xing Gao ◽  
Chunmei Zhang ◽  
Yong Wu ◽  
Xinghua Chang ◽  
...  

Low temperature NH3 plasma modification of Ni MOF-74 yields a highly efficient hydrogen evolution catalyst with a carambola-like hierarchical 3D structure, which is composed of ultrafine Ni nanocrystals encapsulated in a thin layer of N doped carbon.


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