DataVXCarbon EnergyPaper
journal article·2021-03Open access

Graphitic‐shell encapsulated FeNi alloy/nitride nanocrystals on biomass‐derived N‐doped carbon as an efficient electrocatalyst for rechargeable Zn‐air battery

Mingjie Wu, Gaixia Zhang, Yongfeng Hu, Jian Wang, Tianxiao Sun, Tom Regier, Jinli Qiao, Shuhui Sun

Carbon Energy· Volume 3· Issue 1
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Abstract

Abstract Oxygen reduction/evolution reactions (ORR/OERs) catalysts play a key role in the metal‐air battery and water‐splitting process. Herein, we developed a facile template‐free method to fabricate a new type of non–noble metal‐based hybrid catalyst which consists of binary FeNi alloy/nitride nanocrystals with graphitic‐shell and biomass‐derived N‐doped carbon (NC) (FexNiyN@C/NC). This novel nanostructure exhibits superior performance for ORR/OER, which can be attributed to the strong interactions between the graphitic‐shell encapsulated FeNi alloy/nitride nanocrystals and the N‐doped porous carbon substrate. The X‐ray absorption spectroscopy technique was employed to reveal the underlying mechanisms for the excellent performance. The assembled Zn‐air battery device exhibits outstanding charging/discharging performance and cycling stability, indicating the great potential of this type of novel catalysts.
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Research context

Energy storageMetals & alloysNanomaterialsCatalysis & surfaces

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

Center for Energy, Materials and Telecommunications Institut National de la Recherche Scientifique (INRS) Varennes Québec Canada

Science Division, Canadian Light Source University of Saskatchewan Saskatoon Canada

Shanghai Institute of Applied Physics Chinese Academy of Sciences Shanghai China

Shanghai Institute of Pollution Control and Ecological Security, College of Environmental Science and Engineering Donghua University Shanghai China

Funding

National Natural Science Foundation of China · Natural Sciences and Engineering Research Council of Canada · Institut national de la recherche scientifique · China Scholarship Council · Canada Foundation for Innovation

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