File Download

There are no files associated with this item.

  • Find it @ UNIST can give you direct access to the published full text of this article. (UNISTARs only)
Related Researcher

조재필

Cho, Jaephil
Nano Energy Storage Material Lab.
Read More

Views & Downloads

Detailed Information

Cited time in webofscience Cited time in scopus
Metadata Downloads

A Tannic Acid-Derived N-, P-Codoped Carbon-Supported Iron-Based Nanocomposite as an Advanced Trifunctional Electrocatalyst for the Overall Water Splitting Cells and Zinc-Air Batteries

Author(s)
Qin, QingJang, HaeseongLi, PingYuan, BingLiu, XienCho, Jaephil
Issued Date
2019-02
DOI
10.1002/aenm.201803312
URI
https://scholarworks.unist.ac.kr/handle/201301/26413
Fulltext
https://onlinelibrary.wiley.com/doi/full/10.1002/aenm.201803312
Citation
ADVANCED ENERGY MATERIALS, v.9, no.5, pp.1803312
Abstract
Rational design and construction of a multifunctional electrocatalyst featuring with high efficiency and low cost is fundamentally important to realize new energy technologies. Herein, a trifunctional electrocatalyst composed of FePx nanoparticles and Fe-N-C moiety supported on the N-, P-codoped carbon (NPC) is masterly synthesized by a facile one-pot pyrolysis of the mixture of tannic acid, ferrous chloride, and sodium hydrogen phosphate. The synergy of each component in the FePx/Fe-N-C/NPC catalyst renders high catalytic activities and excellent durability toward both oxygen reduction reaction (ORR), oxygen evolution reaction (OER), and hydrogen evolution reaction (HER). The electrocatalytic performance and practicability of the robust FePx/Fe-N-C/NPC catalyst are further investigated under the practical operation conditions. Particularly, the overall water splitting cell assembled by the FePx/Fe-N-C/NPC catalyst only requires a voltage of 1.58 V to output the benchmark current density of 10 mA cm(-2), which is superior to that of IrO2-Pt/C-based cell. Moreover, the FePx/Fe-N-C/NPC-based zinc-air batteries deliver high round-trip efficiency and remarkable cycling stability, much better than that of Pt/C-IrO2 pair-based batteries. This work offers a new strategy to design and synthesize highly effective multifunctional electrocatalysts using cheaper tannic acid derived carbon as support applied in electrochemical energy devices.
Publisher
WILEY-V C H VERLAG GMBH
ISSN
1614-6832
Keyword (Author)
overall water splitting cellssynergistic effecttannic acidtrifunctional electrocatalystszinc-air batteries
Keyword
OXYGEN REDUCTION REACTIONHYDROGEN EVOLUTION REACTIONMETAL-FREE CATALYSTSFEP NANOROD ARRAYSBIFUNCTIONAL ELECTROCATALYSTN,P-CODOPED CARBONTRANSITION-METALEFFICIENTCATHODENANOPARTICLES

qrcode

Items in Repository are protected by copyright, with all rights reserved, unless otherwise indicated.