Metal−Organic Framework-Derived Nitrogen-Doped Core-Shell-Structured Porous Fe/Fe3C@C Nanoboxes Supported on Graphene Sheets for Efficient Oxygen Reduction Reactions

2014 ◽  
Vol 4 (11) ◽  
pp. 1400337 ◽  
Author(s):  
Yang Hou ◽  
Taizhong Huang ◽  
Zhenhai Wen ◽  
Shun Mao ◽  
Shumao Cui ◽  
...  
Keyword(s):  
Oxygen Reduction ◽  
Metal Organic Framework ◽  
Graphene Sheets ◽  
Core Shell ◽  
Reduction Reactions ◽  
Oxygen Reduction Reactions ◽  
Nitrogen Doped ◽  
Metal Organic ◽  
Organic Framework

scholarly journals Graphene oxide/core–shell structured metal–organic framework nano-sandwiches and their derived cobalt/N-doped carbon nanosheets for oxygen reduction reactions

2017 ◽  
Vol 5 (21) ◽  
pp. 10182-10189 ◽  
Author(s):  
Jing Wei ◽  
Yaoxin Hu ◽  
Yan Liang ◽  
Biao Kong ◽  
Zhanfeng Zheng ◽  
...  
Keyword(s):  
Graphene Oxide ◽  
Oxygen Reduction ◽  
Metal Organic Framework ◽  
Core Shell ◽  
Reduction Reactions ◽  
Carbon Nanosheets ◽  
Oxygen Reduction Reactions ◽  
Metal Organic ◽  
Seed Mediated ◽  
Organic Framework

A metal–organic framework (MOF) seed-mediated deposition route is developed to synthesize graphene oxide/core–shell structured MOF nano-sandwiches.

A yolk–shell structured metal–organic framework with encapsulated iron-porphyrin and its derived bimetallic nitrogen-doped porous carbon for an efficient oxygen reduction reaction

2020 ◽  
Vol 8 (19) ◽  
pp. 9536-9544 ◽  
Author(s):  
Chaochao Zhang ◽  
Hao Yang ◽  
Dan Zhong ◽  
Yang Xu ◽  
Yanzhi Wang ◽  
...  
Keyword(s):  
Oxygen Reduction Reaction ◽  
Oxygen Reduction ◽  
Porous Carbon ◽  
Metal Organic Framework ◽  
Reduction Reaction ◽  
Iron Porphyrin ◽  
Zeolitic Imidazolate Framework ◽  
Nitrogen Doped ◽  
Metal Organic ◽  
Organic Framework

A yolk–shell structured metal–organic framework (MOF) with encapsulated 5,10,15,20-tetraphenylporphyrinatoiron (FeTPP) in a zeolitic imidazolate framework (ZIF)-L-ZIF-8 is reported.

scholarly journals Thermal Stability and Potential Cycling Durability of Nitrogen-Doped Graphene Modified by Metal-Organic Framework for Oxygen Reduction Reactions

Catalysts ◽  
2018 ◽  
Vol 8 (12) ◽  
pp. 607 ◽  
Author(s):  
Harsimranjit Singh ◽  
Shiqiang Zhuang ◽  
Bharath Nunna ◽  
Eon Lee
Keyword(s):  
Oxygen Reduction ◽  
Metal Organic Framework ◽  
Metal Catalyst ◽  
High Catalytic Activity ◽  
Potential Cycling ◽  
Nitrogen Doped ◽  
Nitrogen Doped Graphene ◽  
Doped Graphene ◽  
Metal Organic ◽  
Organic Framework

Here we report a nitrogen-doped graphene modified metal-organic framework (N-G/MOF) catalyst, a promising metal-free electrocatalyst exhibiting the potential to replace the noble metal catalyst from the electrochemical systems; such as fuel cells and metal-air batteries. The catalyst was synthesized with a planetary ball milling method, in which the precursors nitrogen-functionalized graphene (N-G) and ZIF-8 are ground at an optimized grinding speed and time. The N-G/MOF catalyst not only inherited large surface area from the ZIF-8 structure, but also had chemical interactions, resulting in an improved Oxygen Reduction Reaction (ORR) electrocatalyst. Thermogravimetric Analysis (TGA) curves revealed that the N-G/MOF catalyst still had some unreacted ZIF-8 particles, and the high catalytic activity of N-G particles decreased the decomposition temperature of ZIF-8 in the N-G/MOF catalyst. Also, we present the durability study of the N-G/MOF catalyst under a saturated nitrogen and oxygen environment in alkaline medium. Remarkably, the catalyst showed no change in the performance after 2000 cycles in the N2 environment, exhibiting strong resistance to the corrosion. In the O2 saturated electrolyte, the performance loss at lower overpotentials was as low compared to higher overpotentials. It is expected that the catalyst degradation mechanism during the potential cycling is due to the oxidative attack of the ORR intermediates.

Hierarchically porous nitrogen-doped carbon nanotubes derived from core–shell ZnO@zeolitic imidazolate framework nanorods for highly efficient oxygen reduction reactions

2017 ◽  
Vol 5 (24) ◽  
pp. 12322-12329 ◽  
Author(s):  
Peng-Chao Shi ◽  
Jun-Dong Yi ◽  
Tao-Tao Liu ◽  
Lan Li ◽  
Lin-Jie Zhang ◽  
...  
Keyword(s):  
Carbon Nanotubes ◽  
Oxygen Reduction ◽  
Core Shell ◽  
Zeolitic Imidazolate Framework ◽  
Reduction Reactions ◽  
Hierarchically Porous ◽  
Oxygen Reduction Reactions ◽  
Nitrogen Doped ◽  
Highly Efficient ◽  
Nitrogen Doped Carbon

Porous N-doped carbon nanotubes with superior activity for ORR are fabricated by pyrolysis of core–shell ZnO@ZIF-8 nanorods.

Sign in / Sign up

Export Citation Format

Share Document