Role of Nitrogen Moieties in N-Doped 3D-Graphene Nanosheets for Oxygen Electroreduction in Acidic and Alkaline Media

2018 ◽  
Vol 10 (14) ◽  
pp. 11623-11632 ◽  
Author(s):  
Sadia Kabir ◽  
Kateryna Artyushkova ◽  
Alexey Serov ◽  
Plamen Atanassov
Keyword(s):  
Graphene Nanosheets ◽  
Oxygen Electroreduction ◽  
Alkaline Media ◽  
3D Graphene ◽  
Acidic And Alkaline Media

Efficient oxygen electroreduction over ordered mesoporous Co–N-doped carbon derived from cobalt porphyrin

RSC Advances ◽  
2016 ◽  
Vol 6 (18) ◽  
pp. 15167-15174 ◽  
Author(s):  
C. Li ◽  
Z. Han ◽  
Y. Yu ◽  
Y. Zhang ◽  
B. Dong ◽  
...  
Keyword(s):  
High Performance ◽  
Oxygen Electroreduction ◽  
Alkaline Media ◽  
Cobalt Porphyrin ◽  
Ordered Mesoporous ◽  
Comparable Activity ◽  
Acidic And Alkaline Media

High-performance self-supported Co–N-doped carbon electrocatalyst for ORR with comparable activity to Pt/C in both acidic and alkaline media was prepared.

Role of Transition Metals on TM/Mo2C Composites: Hydrogen Evolution Activity in Mildly Acidic and Alkaline Media

2020 ◽  
Vol 12 (24) ◽  
pp. 27150-27165 ◽  
Author(s):  
Andrey A. Koverga ◽  
Ana M. Gómez-Marín ◽  
Ludovic Dorkis ◽  
Elizabeth Flórez ◽  
Edson A. Ticianelli
Keyword(s):  
Transition Metals ◽  
Hydrogen Evolution ◽  
Alkaline Media ◽  
Acidic And Alkaline Media

Fabrication of functionalized 3D graphene with controllable micro/meso-pores as a superior electrocatalyst for enhanced oxygen reduction in both acidic and alkaline solutions

RSC Advances ◽  
2016 ◽  
Vol 6 (83) ◽  
pp. 79459-79469 ◽  
Author(s):  
Yue Guan ◽  
Zhiyu Dou ◽  
Yan Yang ◽  
Juanhong Xue ◽  
Zhen Zhu ◽  
...  
Keyword(s):  
Catalytic Activity ◽  
Oxygen Reduction ◽  
Alkaline Media ◽  
Alkaline Solutions ◽  
3D Graphene ◽  
Doped Graphene ◽  
Acidic And Alkaline Media

We have synthesized hierarchically 3D porous Fe5C2/N-doped graphene (3D Fe5C2/N-PG) with numerous micro/meso-pores by a controllable and facile strategy. The catalyst displays excellent catalytic activity for ORR in both acidic and alkaline media.

scholarly journals Superior FexN electrocatalyst derived from 1,1′-diacetylferrocene for oxygen reduction reaction in alkaline and acidic media

2020 ◽  
Vol 9 (1) ◽  
pp. 843-852
Author(s):  
Hunan Jiang ◽  
Jinyang Li ◽  
Mengni Liang ◽  
Hanpeng Deng ◽  
Zuowan Zhou
Keyword(s):  
Oxygen Reduction Reaction ◽  
Oxygen Reduction ◽  
Current Density ◽  
Active Sites ◽  
Reduction Reaction ◽  
Alkaline Media ◽  
Acidic Media ◽  
Onset Potential ◽  
Acidic And Alkaline Media ◽  
The Stability

AbstractAlthough Fe–N/C catalysts have received increasing attention in recent years for oxygen reduction reaction (ORR), it is still challenging to precisely control the active sites during the preparation. Herein, we report FexN@RGO catalysts with the size of 2–6 nm derived from the pyrolysis of graphene oxide and 1,1′-diacetylferrocene as C and Fe precursors under the NH3/Ar atmosphere as N source. The 1,1′-diacetylferrocene transforms to Fe3O4 at 600°C and transforms to Fe3N and Fe2N at 700°C and 800°C, respectively. The as-prepared FexN@RGO catalysts exhibited superior electrocatalytic activities in acidic and alkaline media compared with the commercial 10% Pt/C, in terms of electrochemical surface area, onset potential, half-wave potential, number of electrons transferred, kinetic current density, and exchange current density. In addition, the stability of FGN-8 also outperformed commercial 10% Pt/C after 10000 cycles, which demonstrates the as-prepared FexN@RGO as durable and active ORR catalysts in acidic media.

Sign in / Sign up

Export Citation Format

Share Document