Please use this identifier to cite or link to this item: https://hdl.handle.net/10356/151076
Title: Alveolate porous carbon aerogels supported Co9S8 derived from a novel hybrid hydrogel for bifunctional oxygen electrocatalysis
Authors: Hu, Xuejiao
Chen, Yifan
Zhang, Mengru
Fu, Gengtao
Sun, Dongmei
Lee, Jong-Min
Tang, Yawen
Keywords: Engineering::Chemical engineering
Issue Date: 2018
Source: Hu, X., Chen, Y., Zhang, M., Fu, G., Sun, D., Lee, J. & Tang, Y. (2018). Alveolate porous carbon aerogels supported Co9S8 derived from a novel hybrid hydrogel for bifunctional oxygen electrocatalysis. Carbon, 144, 557-566. https://dx.doi.org/10.1016/j.carbon.2018.12.099
Journal: Carbon 
Abstract: Incorporation of transition-metal dopants into carbon aerogels is a powerful way to develop highly-active and robust bifunctional oxygen electrocatalysts. Herein, we develop a novel hybrid hydrogel method for the preparation of Co9S8-doped alveolate carbon aerogels. The hydrogel formation depends on a simple sol−gel polymerization of chitosan, sodium tripolyphosphate and polyhexamethyleneguanidine phosphate. The repeating units of polymer contain a binding site (single bondNH2) for Co2+ ions, after pyrolysis which ensures a uniform anchor of Co9S8 particles within the carbon aerogels. The newly developed catalyst exhibits excellent bifunctional activity and robust stability for both the oxygen reduction reaction and oxygen evolution reaction, resulting from the significant synergy between Co9S8 and 3D porous N, P-codoped carbon aerogels. Moreover, we also demonstrate that Co9S8 material is more active to OER than to ORR through the density functional theory (DFT) theoretical computation.
URI: https://hdl.handle.net/10356/151076
ISSN: 0008-6223
DOI: 10.1016/j.carbon.2018.12.099
Rights: © 2018 Elsevier Ltd. All rights reserved.
Fulltext Permission: none
Fulltext Availability: No Fulltext
Appears in Collections:SCBE Journal Articles

Page view(s)

44
Updated on Oct 12, 2021

Google ScholarTM

Check

Altmetric


Plumx

Items in DR-NTU are protected by copyright, with all rights reserved, unless otherwise indicated.