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

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.

2021 ◽  
Author(s):  
Suojiang Zhang ◽  
jiayao Cui ◽  
Qingjun Chen ◽  
Xiaojin Li

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...


2015 ◽  
Vol 17 (12) ◽  
pp. 7643-7647 ◽  
Author(s):  
A. Ishihara ◽  
M. Chisaka ◽  
Y. Ohgi ◽  
K. Matsuzawa ◽  
S. Mitsushima ◽  
...  

Nano-TaOx particles were supported on MWCNTs via a thermal decomposition of oxy-tantalum phthalocyanine. The ORR activity solely-originated from nano-TaOx was above 0.9 V versus RHE with larger currents than conventional micro-TaOx in acidic media.


Nanoscale ◽  
2014 ◽  
Vol 6 (24) ◽  
pp. 15066-15072 ◽  
Author(s):  
Yuanyuan Jiang ◽  
Yizhong Lu ◽  
Xiaodan Wang ◽  
Yu Bao ◽  
Wei Chen ◽  
...  

Effective preparation of a high-performance non-precious metal oxygen reduction electrocatalyst (a Co–N complex on 3D N-doped graphene) by a facile method from low-cost raw materials.


Author(s):  
Hee Soo Kim ◽  
CHI HO LEE ◽  
Jue-Hyukk Jang ◽  
Min Seok Kang ◽  
Haneul Jin ◽  
...  

Development of non Pt-based catalysts (non-PBCs) that show excellent oxygen reduction reaction (ORR) activity for high-performance Zn-air battery (ZAB) and anion exchange membrane fuel cell (AEMFC) is highly necessitated. Here,...


2021 ◽  
Vol 245 ◽  
pp. 03017
Author(s):  
Zhenxin Chen ◽  
Qikai Wu ◽  
Hongguo Zhang

To improve the power generation of microbial fuel cell (MFC), the cathode is modified to increase its oxygen reduction reaction (ORR) activity by using Co/UiO-66, which derived from pyrolyzing the mixture of Co(NO3)2 as the metal precursor incorporated with NH2-UiO-66. It was found that Co/UiO-66 (MOF-900) has been developed as a high-performance electrocatalyst for ORR at a pyrolysis temperature of 900 °C. Therefore, Co/UiO-66 should be a promising oxygen reduction catalyst for application in MFCs. This study provides technical and theoretical validation for the MFC performance improvement by ORR active MOF-derived catalysts modified cathodes.


Author(s):  
Frizka Vietanti ◽  
Chen-Hao Wang

In this study, we have synthesized nitrogen doped reduced graphene oxide (N-rGO) supported ternary PdFeCo nanoparticle by three methods. A hydrothermal method to synthesize N-rGO, an emulsion method to synthesize PdFeCo nanoparticle, and a rota-evaporation to synthesize PdFeCo/N-rGO composite. A bifunctional PdFeCo/N-rGO exhibited excellent electrocatalytic activity towards both methanol oxidation and stability in oxygen reduction reaction (ORR). During methanol oxidation reaction, PdFeCo/N-rGO exhibited stronger methanol tolerance than Pt/C. In stability ORR, PdFeCo/N-rGO exhibited 2.85 times greater than Pt/C  in ORR stability. The high performance of PdFeCo/N-rGO was attributed by strong bonding of structure. A strong bonding of transition metals in Pd based catalyst can servemethanol tolerance and stability during ORR activity.


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