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 >> Electrochimica Acta >>article
Electrochimica Acta

Electrochimica Acta

IF: 5.5
Download PDF

Three-dimensional nanoflower-like transition metal sulfide heterostructures (Co9S8/Co1-xS/WS2) as efficient bifunctional oxygen electrocatalysts for Zn-air batteries

Published:3 December 2024 DOI: 10.1016/j.electacta.2024.145467
Boxin Fan, Anmin Lei, Yueping Zou, Miaomiao Liu, Lianhua Zhao, Biyao Jin

Abstract

The charging and discharging processes of rechargeable Zn-air batteries (ZABs) require the use of precious metal catalysts (Pt and RuO2) that are expensive. Therefore, preparing efficient, stable, and affordable metal bifunctional oxygen electrocatalysts compatible with both the oxygen reduction reaction (ORR) and oxygen evolution reaction (OER) is crucial. Herein, a nanoflower-like Co9S8/Co1-xS/WS2 bifunctional oxygen electrocatalyst with a layered structure has been prepared. The cobalt sulfide serves as the main active site and the synergistic interaction between the multi-components modulates the electronic structure of the active site and generates abundant S vacancies, thereby effectively improving the bifunctional oxygen electrocatalytic performance. The electrocatalytic activity of the prepared catalyst for ORR/OER is close to that of commercial noble metal catalysts. When Co9S8/Co1-xS/WS2 is used as the cathode material in Zn-air batteries, the batteries exhibit high specific capacity (822.6 mAh gZn?1), excellent energy density (958.9 Wh kgZn?1), as well as a battery charge/discharge cycling time that was twice that of the commercial catalyst PtC+RuO2.

Substances (4)

Materials
Procduct Name CAS Molecular Formula Supplier Price
Methanol 67-56-1 CH4O 896 suppliers $9.00-$7620.00
Thiourea 62-56-6 CH4N2S 639 suppliers $7.62-$1550.00
1,2-Dimethylimidazole 1739-84-0 C5H8N2 514 suppliers $6.00-$4366.51
Cobaltous nitrate hexahydrate 10026-22-9 CoH12N2O12 381 suppliers $17.47-$1060.00

Similar articles

IF:6

Self-assembly of three-dimensional 1-octadecanol/graphene thermal storage materials

Solar Energy Xiuli Wang , Xiaomin Cheng ,etc Published: 1 February 2019
IF:8.3

Endowing Three-Dimensional Porous Wood with Hydrophobicity/Superhydrophobicity Based on Binary Silanization.

ACS Applied Materials & Interfaces Wei Tang,?Hengyi Zhang,etc Published: 21 August 2024
喀什市| 昆明市| 昌江| 卓尼县| 三穗县| 阿城市| 拉孜县| 永昌县| 武冈市| 集贤县| 嘉鱼县| 天全县| 锦屏县| 长顺县| 巨野县| 罗定市| 柘城县| 嘉兴市| 深水埗区| 丰县| 敦化市| 黄骅市| 茂名市| 额尔古纳市| 黑山县| 紫阳县| 武穴市| 安多县| 南溪县| 拜泉县| 雅安市| 依兰县| 绩溪县| 吉木乃县| 新津县| 鹿邑县| 手游| 若尔盖县| 新余市| 淮南市| 吉安县|