Atomically dispersed Mn-N4 electrocatalyst with high oxygen reduction reaction catalytic activity from metal organic framework ZIF-8 by minimal water assisted mechanochemical synthesis

2022 ◽  
Author(s):  
Ziyan Kong ◽  
Tao Liu ◽  
Kun Hou ◽  
Lunhui Guan
Keyword(s):  
Catalytic Activity ◽  
Oxygen Reduction Reaction ◽  
Oxygen Reduction ◽  
Mechanochemical Synthesis ◽  
Precious Metal ◽  
Metal Organic Framework ◽  
Reduction Reaction ◽  
Environmentally Benign ◽  
Metal Organic ◽  
Co Doped

Developing efficient and stable non-precious metal (NPM) oxygen reduction reaction (ORR) catalyst in an environmentally benign and economically affordable way is highly desired but remains challenging. Manganese and nitrogen co-doped...

scholarly journals Fabrication of Co, N-Doping Hierarchical Porous Graphene from Metal Organic Framework for Oxygen Reduction Reaction in Microbial Fuel Cell

2022 ◽  
Author(s):  
Wenyi Wang ◽  
Xueqin Wang ◽  
Yuanyuan Wang ◽  
Bolong Jiang ◽  
Hua Song
Keyword(s):  
Oxygen Reduction Reaction ◽  
Oxygen Reduction ◽  
Metal Organic Framework ◽  
Reduction Reaction ◽  
Limiting Current ◽  
Hierarchical Porous ◽  
Doped Graphene ◽  
Metal Organic ◽  
Co Doped ◽  
Organic Framework

Abstract Graphene is a very attractive 2D carbon material, while the synthesis route of functional graphene is complex and complicated. The purpose of this study is to develop Co/N co-doped grapheme catalyst for ORR.Herein, a facile and universal pyrolysis method to explore the preparation of Co-N co-doped graphene through thermal exfoliation of 3D Co0.5Zn0.5-ZIF metal-organic framework by dimension reduction, and study the specific changes during process of dimensionality reduction, aiming at contributing to the transformation mode of 3D materials into 2D materials. The results showed that LiCl and KCl play different roles, namely the building carbon layer, pore-creating and exfoliation and acted simultaneously when they are added. A unique ultrathin 2D morphology of Co/N co-doped graphene, pores formed with the volatilization of zinc ions, and the appearance of abundant Co-Nx active sites, which endow efficient catalytic activity of oxygen reduction reaction (ORR) in the alkaline electrolyte. Co/N-Go-Li/K-800 possesses the superior ORR activity among Co/N-Go-Li/K-T with an onset potential (0.15V vs Ag/AgCl) and higher limiting current density([email protected] vs. Ag/AgCl) (-5.20 mA•cm-2) closer to Pt/C (0.17V vs. Ag/AgCl and -5.86 mA•cm-2).

Tannic acid-mediated synthesis of dual-heteroatom-doped hollow carbon from a metal–organic framework for efficient oxygen reduction reaction

2018 ◽  
Vol 47 (23) ◽  
pp. 7812-7818 ◽  
Author(s):  
Mengchen Wu ◽  
Congling Li ◽  
Jing Zhao ◽  
Yun Ling ◽  
Rui Liu
Keyword(s):  
Oxygen Reduction Reaction ◽  
Oxygen Reduction ◽  
Tannic Acid ◽  
Metal Organic Framework ◽  
Reduction Reaction ◽  
Metal Organic ◽  
Hollow Carbon ◽  
Co Doped ◽  
Organic Framework

Herein, we report an original strategy to fabricate N/B co-doped hollow carbon (denoted as NB–HC) with the assistance of tannic acid.

Electrospun metal-organic framework nanoparticle fibers and their derived electrocatalysts for oxygen reduction reaction

Nano Energy ◽  
2019 ◽  
Vol 55 ◽  
pp. 226-233 ◽  
Author(s):  
Chuan-Ling Zhang ◽  
Bing-Rong Lu ◽  
Fu-Hu Cao ◽  
Zhen-Yu Wu ◽  
Wang Zhang ◽  
...  
Keyword(s):  
Oxygen Reduction Reaction ◽  
Oxygen Reduction ◽  
Metal Organic Framework ◽  
Reduction Reaction ◽  
Metal Organic ◽  
Organic Framework
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