journal article·2016-04-06

Noble Metal-Free Oxygen Reduction Reaction Catalysts Derived from Prussian Blue Nanocrystals Dispersed in Polyaniline

Xiaojuan Wang, Leran Zou, He Fu, Yifu Xiong, Zixu Tao, Jie Zheng, Xingguo Li

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Abstract

A highly efficient noble-metal-free catalyst for the oxygen reduction reaction (ORR) is derived from a composite of polyaniline (PANI) and Prussian blue analogue (PBA, Co3[Fe(CN)6]2) by pyrolysis. The composite consists of 2-5 nm PBA nanocrystals homogeneously dispersed in PANI. During the pyrolysis, the PBA nanocrystals serve as both the template for the pore formation and the precursor for the ORR active sites, which results in a nanoporous structure strongly coupled with the ORR active sites. The catalyst exhibits superior ORR performance in both alkaline and acidic electrolyte, comparable to that of the commercial Pt/C with 20 wt % Pt loading.
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Research context

OpenAlex topics: Electrocatalysts for Energy Conversion · Fuel Cells and Related Materials · Advanced Memory and Neural Computing

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

Affiliations

Beijing National Laboratory for Molecular Sciences (BNLMS), (The State Key Laboratory of Rare Earth Materials Chemistry and Applications), College of Chemistry and Molecular Engineering, Peking University, Beijing 100871, China

Sichuan Institute of Materials and Technology, China Academy of Engineering Physics, Mianyang 621900, China

Funding

Ministry of Science and Technology of the People's Republic of China · National Natural Science Foundation of China · Guangxi Collaborative Innovation Center of Structure and Property of New Energy and Materials, Guilin University of Electronic Technology · Guangxi Key Laboratory of Information Materials, Guilin University of Electronic Technology

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