journal article·2021-10-25

NiCo Alloy Nanoparticles Anchored on Carbon Nanotube-Decorated Carbon Nanorods as a Durable and Efficient Oxygen Electrocatalyst for Zinc-Air Flow Batteries

Wei Peng, Junhong Jin, Shenglin Yang, Zhigang Shen, Hetuan Wang, Jingjing Zhang, Guang Li

ACS Applied Energy Materials· Volume 4· Issue 10
Publisher page

Abstract

The exploring of oxygen electrocatalysts with outstanding durability and efficiency toward the oxygen reduction reaction (ORR) and oxygen evolution reaction (OER) is greatly desired for zinc-air flow batteries (ZAFBs). Herein, NiCo alloy-based nanoparticles anchored on carbon nanotube-decorated carbon nanorods (CNRs) used as a durable and efficient oxygen electrocatalyst for ZAFBs were obtained from the pyrolysis of NiCo metal–organic frameworks synthesized by a facile oil bath method. By tailoring the ratio of Ni2+ and Co2+, the prepared sample, Ni2Co2-CNR, exhibits excellent ORR (E1/2 = 0.80 V) and OER catalytic performances (a low overpotential of 310 mV at 10 mA cm–2). Impressively, the ZAFB assembled with a Ni2Co2-CNR catalyst shows a narrow voltage gap and remarkable operation durability with 1200 cycles at 5 mA cm–2 with every cycle of 20 min.
Source: openalex_inverted_index · Quality: baseline

Research context

OpenAlex topics: Electrocatalysts for Energy Conversion · Advanced battery technologies research · Fuel Cells and Related Materials

SciVX discovery tags are terminology-based. OpenAlex topics are source-provided classifications.

Affiliations

State Key Laboratory for Modification of Chemical Fibers and Polymer Materials, College of Materials Science and Engineering, Donghua University, Shanghai 201620, China

Shanghai Research Institute of Petrochemical Technology, Sinopec, Shanghai 201424, China

Funding

Ministry of Education of the People's Republic of China · China Petrochemical Corporation · Science and Technology Commission of Shanghai Municipality · Donghua University · National Natural Science Foundation of China

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