CAS OpenIR  > 中科院上海应用物理研究所2011-2020年
N-Doped carbon coating enhances the bifunctional oxygen reaction activity of CoFe nanoparticles for a highly stable Zn-air battery
Liu, Q; Liu, X; Xie, Y; Sun, FF; Liang, ZJ; Wang, L; Fu, HG
2020
Source PublicationJOURNAL OF MATERIALS CHEMISTRY A
ISSN2050-7488
Volume8Issue:40Pages:21189-21198
Subtype期刊论文
AbstractThe construction of a high performance and stable non-precious metal-air-cathode is of great significance for a Zn-air battery (ZAB). Herein, 3D nanosheets consisting of N-doped carbon conglutinated CoFe alloy nanoparticles grown on carbon cloth (CoFe@NC/CC) have been prepared through simple electrodeposition and subsequent thermal decomposition. The cathode showed excellent activity and stability for the bifunctional oxygen reduction reaction (ORR) and the oxygen evolution reaction (OER), due to the synergic effect of the CoFe alloy and the N-doped carbon conglutinated structures. Density functional theory (DFT) calculations demonstrated that the introduction of the N-doped carbon structures can greatly weaken the O-2 adsorption energy on the CoFe alloy nanoparticles, thus enhancing the bifunctional ORR/OER activity of the catalyst. As a binder-less self-supporting electrode, the assembled liquid ZAB showed a high open circuit voltage of 1.469 V, and it could be stably cycled for more than 400 cycles with a charge-discharge voltage gap of 0.77 V at a current density of 10 mA cm(-2), surpassing the performance of Pt/C + RuO2/C benchmarks and other reported CoFe-based electrocatalysts. Furthermore, the all-solid-state ZAB was shown to be a battery with good flexibility for wearable electronics, satisfying the requirements of next-generation sustainable active electronics.
KeywordLAYERED DOUBLE HYDROXIDE DEFECT-RICH EFFICIENT ELECTROCATALYSTS REDUCTION CATALYSTS NITRIDE NANOSHEETS RU
DOI10.1039/d0ta08114k
Indexed BySCI ; EI
Language英语
Citation statistics
Cited Times:12[WOS]   [WOS Record]     [Related Records in WOS]
Document Type期刊论文
Identifierhttp://ir.sinap.ac.cn/handle/331007/33030
Collection中科院上海应用物理研究所2011-2020年
Affiliation1.Heilongjiang Univ, Minist Educ Peoples Republ China, Key Lab Funct Inorgan Mat Chem, Harbin 150080, Peoples R China
2.Harbin Engn Univ, Minist Educ Peoples Republ China, Key Lab Superlight Mat & Surface Technol, Harbin 150001, Peoples R China
3.Chinese Acad Sci, Shanghai Inst Appl Phys, Shanghai Synchrotron Radiat Facil, Shanghai 201204, Peoples R China
Recommended Citation
GB/T 7714
Liu, Q,Liu, X,Xie, Y,et al. N-Doped carbon coating enhances the bifunctional oxygen reaction activity of CoFe nanoparticles for a highly stable Zn-air battery[J]. JOURNAL OF MATERIALS CHEMISTRY A,2020,8(40):21189-21198.
APA Liu, Q.,Liu, X.,Xie, Y.,Sun, FF.,Liang, ZJ.,...&Fu, HG.(2020).N-Doped carbon coating enhances the bifunctional oxygen reaction activity of CoFe nanoparticles for a highly stable Zn-air battery.JOURNAL OF MATERIALS CHEMISTRY A,8(40),21189-21198.
MLA Liu, Q,et al."N-Doped carbon coating enhances the bifunctional oxygen reaction activity of CoFe nanoparticles for a highly stable Zn-air battery".JOURNAL OF MATERIALS CHEMISTRY A 8.40(2020):21189-21198.
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