Metal- and Nonmetal-Incorporated Vitamin B 12 on Graphene as a Bioderived Electrocatalyst for High-Performance Oxygen Reduction Reaction in Acidic Media

2021 ◽  
Author(s):  
Dong-Eun Lee ◽  
Satyanarayana Moru ◽  
Wan-Kuen Jo ◽  
Surendar Tonda
Keyword(s):  
Oxygen Reduction Reaction ◽  
Oxygen Reduction ◽  
High Performance ◽  
Reduction Reaction ◽  
Vitamin B ◽  
Acidic Media

High-performance electrocatalyst for oxygen reduction reaction derived from copolymer networks and iron(ii) acetate

RSC Advances ◽  
2016 ◽  
Vol 6 (99) ◽  
pp. 97259-97265 ◽  
Author(s):  
Mei Yang ◽  
Hongbiao Chen ◽  
Duanguang Yang ◽  
Yong Gao ◽  
Huaming Li
Keyword(s):  
Oxygen Reduction Reaction ◽  
Oxygen Reduction ◽  
Precious Metal ◽  
High Performance ◽  
Reduction Reaction ◽  
Acidic Media ◽  
Orr Activity

A novel non-precious-metal electrocatalyst for ORR is prepared by the pyrolysis of copolymer networks (CPN) in the presence of iron(ii) acetate. The as-prepared Fe–NTP/C-900 exhibits excellent ORR activity in both alkaline and acidic media.

scholarly journals Fe–N-Doped carbon foam nanosheets with embedded Fe2O3 nanoparticles for highly efficient oxygen reduction in both alkaline and acidic media

RSC Advances ◽  
2017 ◽  
Vol 7 (24) ◽  
pp. 14382-14388 ◽  
Author(s):  
Xueyan Xu ◽  
Chengxiang Shi ◽  
Qi Li ◽  
Rui Chen ◽  
Tiehong Chen
Keyword(s):  
Oxygen Reduction Reaction ◽  
Oxygen Reduction ◽  
High Performance ◽  
Carbon Foam ◽  
Reduction Reaction ◽  
Fe2o3 Nanoparticles ◽  
Acidic Media ◽  
Highly Efficient ◽  
Carbon Coated

We report a high performance oxygen reduction reaction (ORR) electrocatalyst Fe2O3@Fe–N–C, which is composed of Fe–N-doped carbon foam nanosheets with embedded carbon coated Fe2O3 nanoparticles to enhance the ORR performance in both alkaline and acidic 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.

Recent Advances in Non-Precious Metal Electrocatalysts for Oxygen Reduction in Acidic Media and PEMFCs: An Activity, Stability and Mechanism Study

2021 ◽  
Author(s):  
Suojiang Zhang ◽  
jiayao Cui ◽  
Qingjun Chen ◽  
Xiaojin Li
Keyword(s):  
Oxygen Reduction Reaction ◽  
Oxygen Reduction ◽  
Precious Metal ◽  
Platinum Group Metal ◽  
Reduction Reaction ◽  
Proton Exchange ◽  
Mechanism Study ◽  
Acidic Media ◽  
Intensive Research ◽  
Limited Supply

The high cost and limited supply of platinum has driven intensive research into the use of non-platinum group metal (PGM-free) as cathode oxygen reduction reaction (ORR) catalysts for proton exchange...

Tunable mesoporous manganese oxide for high performance oxygen reduction and evolution reactions

2016 ◽  
Vol 4 (2) ◽  
pp. 620-631 ◽  
Author(s):  
Islam M. Mosa ◽  
Sourav Biswas ◽  
Abdelhamid M. El-Sawy ◽  
Venkatesh Botu ◽  
Curtis Guild ◽  
...  
Keyword(s):  
Oxygen Reduction Reaction ◽  
Manganese Oxide ◽  
Oxygen Reduction ◽  
Oxygen Evolution ◽  
Oxygen Evolution Reaction ◽  
High Performance ◽  
Reduction Reaction ◽  
Noble Metal Catalysts ◽  
Highly Active ◽  
State Of Art

Understanding the origin of manganese oxide activity for oxygen reduction reaction (ORR) and oxygen evolution reaction (OER) is a key step towards rationally designing of highly active catalysts capable of competing with the widely used, state-of-art noble metal catalysts.

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