Titanium nitride-supported Cu–Ni bifunctional electrocatalysts for CO2 reduction and the oxygen evolution reaction

2020 ◽  
Vol 4 (11) ◽  
pp. 5654-5664
Author(s):  
Hanqing Pan ◽  
Christopher J. Barile

This work reports the fabrication of a bifunctional electrocatalyst capable of catalyzing the CO2 reduction reaction (CO2RR) and the O2 evolution reaction (OER).

Author(s):  
Fen Li ◽  
Qin Tengteng ◽  
Yuping Sun ◽  
Renjun Jiang ◽  
Jiangfeng Yuan ◽  
...  

Developing high-performance bifunctional electrocatalysts for both the oxygen reduction reaction (ORR) and oxygen evolution reaction (OER) is a significant challenge for the implementation of rechargeable Zn-air batteries. Herein, MnO2 nanotubes...


2015 ◽  
Vol 1777 ◽  
pp. 1-6 ◽  
Author(s):  
Elaheh Davari ◽  
Douglas G. Ivey

ABSTRACTBifunctional electrocatalysts, which facilitate the oxygen reduction reaction (ORR) and oxygen evolution reaction (OER), are vital components in advanced metal-air batteries. Results are presented for carbon-free, nanocrystalline, rod-like, Mn-Co oxide/PEDOT bifunctional electrocatalysts, prepared by template-free sequential anodic electrodeposition. Electrochemical characterization of synthesized electrocatalysts, with and without a conducting polymer (PEDOT) coating, was performed using cyclic voltammetry (CV) and linear sweep voltammetry (LSV). In addition, microstructural characterization was conducted using SEM, TEM, STEM and XPS. Mn-Co oxide/PEDOT showed improved ORR/OER performance relative to Mn-Co oxide and PEDOT. On the basis of rotating disk electrode (RDE) experiments, Mn-Co oxide/PEDOT displayed the desired 4-electron transfer oxygen reduction pathway. Comparable ORR activity and superior OER activity relative to commercial Pt/C were observed.


Nanoscale ◽  
2020 ◽  
Vol 12 (10) ◽  
pp. 6089-6095
Author(s):  
Zichao Rong ◽  
Chenlong Dong ◽  
Shaoning Zhang ◽  
Wujie Dong ◽  
Fuqiang Huang

Highly active bifunctional electrocatalysts for the oxygen reduction reaction (ORR) and oxygen evolution reaction (OER) play a pivotal role in Zn–air batteries.


2020 ◽  
Vol 44 (27) ◽  
pp. 11808-11816
Author(s):  
Shi-Yuan Zhang ◽  
Jing-Jing Ma ◽  
Hong-Lin Zhu ◽  
Yue-Qing Zheng

Beaded Au@Co3O4 nanowire arrays were prepared and function as a bifunctional electrocatalyst with outstanding electrochemical performance in producing syngas and the oxygen evolution reaction.


2021 ◽  
Author(s):  
Ping Liu ◽  
Huijuan Han ◽  
Qingyun Xia ◽  
Nini Ma ◽  
Sihan Lu ◽  
...  

A cost-effective non-noble metal bifunctional electrocatalyst towards oxygen reduction reaction (ORR) and oxygen evolution reaction (OER) is very important for energy-related applications. Micro/nanomaterials with core-shell structures have emerged as potential...


Nanoscale ◽  
2020 ◽  
Vol 12 (17) ◽  
pp. 9628-9639 ◽  
Author(s):  
Huimin Liu ◽  
Xinning Huang ◽  
Zhenjie Lu ◽  
Tao Wang ◽  
Yaming Zhu ◽  
...  

The commercialization of metal–air batteries requires efficient, low-cost, and stable bifunctional electrocatalysts for reversible electrocatalysis of the oxygen reduction reaction (ORR) and the oxygen evolution reaction (OER).


RSC Advances ◽  
2021 ◽  
Vol 11 (62) ◽  
pp. 38977-38981
Author(s):  
Liyang Luo ◽  
Zhongyi Liu ◽  
Zhiyuan Wang

Developing low-cost, highly efficient electrocatalysts for the oxygen reduction reaction (ORR) and oxygen evolution reaction (OER) is desirable for rechargeable metal–air batteries.


2019 ◽  
Vol 55 (42) ◽  
pp. 5855-5858 ◽  
Author(s):  
Chanikarn Tomon ◽  
Sangchai Sarawutanukul ◽  
Salatan Duangdangchote ◽  
Atiweena Krittayavathananon ◽  
Montree Sawangphruk

Spinel-type cobalt oxide (Co3O4) was synthesized and used as a photoactive bifunctional electrocatalyst towards the oxygen evolution reaction (OER) and the oxygen reduction reaction (ORR) at the air cathode of zinc–air batteries (ZABs).


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