一二三四区视频,亚洲少妇熟女色,日本久热无码视频网,欧美国产日韩大尺度,亚洲a视频,久久少妇一区二区,日韩999无码视频,刺激久久久久久久,啊啊啊啊不要啊在线

ChemicalBook >> journal list >> Journal of Colloid and Interface Science >>article
Journal of Colloid and Interface Science

Journal of Colloid and Interface Science

IF: 9.4
Download PDF

Co/CoO hetero-nanoparticles incorporated into lignin-derived carbon nanofibers as a self-supported bifunctional oxygen electrocatalyst for rechargeable Zn-air?…

Published:7 December 2024 DOI: 10.1016/j.jcis.2024.12.035 PMID: 39657415
Yali Wang,?Ruihui Gan,?Xiaodong Shao,?Binting Dai,?Lin Ma,?Jinzheng Yang,?Jingli Shi,?Xiangwu Zhang,?Chang Ma,?Zhanshuang Jin

Abstract

The large-scale application of rechargeable Zn-air batteries (ZABs) necessitates the development of high-efficiency and cost-effective bifunctional electrocatalysts for oxygen reduction reaction (ORR) and oxygen evolution reaction (OER). Herein, the density functional theory calculations were performed to reveal the charge redistribution induced by the Co/CoO heterojunction integrating with N-doped carbon, which could optimize the d-band center, thereby accelerating O2 transformed into OOH* in the ORR and the conversion of O* into OOH* in OER. Guided by theoretical calculations, Co/CoO hetero-nanoparticles-decorated lignin-derived N-doped porous carbon nanofibers (Co-LCFs-800) were synthesized to use as an advanced self-supported bifunctional oxygen electrocatalyst. Consequently, Co-LCFs-800 shows a half-wave potential of 0.834?V in ORR and an overpotential of 354?mV at 10?mA cm-2 in OER. The Co-LCFs-800-based liquid ZABs afford an admirable performance with a large specific capacity of 780.8 mAh g-1, and the Co-LCFs-800-based solid-state ZABs exhibit satisfactory mechanical flexibility and cycling stability. The results suggest that the integration of hetero-nanoparticles into carbon nanofibers holds promise for oxygen cathode in ZABs.

Substances (5)

Materials
Procduct Name CAS Molecular Formula Supplier Price
N,N-Dimethylformamide 68-12-2 C3H7NO 1313 suppliers $11.20-$12200.00
Oxygen 7782-44-7 O2 822 suppliers $39.00-$6603.14
Poly(vinyl alcohol) 9002-89-5 C2H4O 774 suppliers $13.00-$4353.77
Nitrogen 7727-37-9 N2 385 suppliers $368.00-$6570.80
Nitrogen 7727-37-9 N2 385 suppliers $368.00-$6570.80
兴业县| 辛集市| 闵行区| 若尔盖县| 乐至县| 德化县| 盘锦市| 始兴县| 大关县| 宝兴县| 大荔县| 灵寿县| 肃宁县| 合水县| 罗山县| 昌江| 怀集县| 霍州市| 芦山县| 延边| 常熟市| 泉州市| 渝中区| 阜南县| 仲巴县| 克什克腾旗| 怀来县| 大厂| 静海县| 苗栗市| 河间市| 石门县| 安宁市| 兰州市| 石泉县| 绵竹市| 萍乡市| 微山县| 天镇县| 林芝县| 锦州市|