Solvothermal Synthesis of Organic–Inorganic Cathode Vanadyl Acetate Nanobelts for Aqueous Zinc-Ion Batteries,ACS Sustainable Chemistry & Engineering

当前位置： X-MOL 学术 › ACS Sustain. Chem. Eng. › 论文详情

Our official English website, www.x-mol.net, welcomes your feedback! (Note: you will need to create a separate account there.)

Solvothermal Synthesis of Organic–Inorganic Cathode Vanadyl Acetate Nanobelts for Aqueous Zinc-Ion Batteries
ACS Sustainable Chemistry & Engineering ( IF 7.1 ) Pub Date : 2023-03-22 , DOI: 10.1021/acssuschemeng.2c07108
Yunbo Li ₁ , Yanming Zhao _{1,

2} , Ni Wen ₁ , Hongyan Zhou ₁ , Quan Kuang _{1,

2} , Qinghua Fan _{1,

2} , Youzhong Dong _{1,

2}

Affiliation

Organic (acetate)–inorganic (vanadyl) material VO(CH₃COO)₂ (VA) nanoribbons are synthesized by a simple solvothermal method. As a cathode material for zinc-ion aqueous batteries, the hybrid material exhibits a highly stable reversible specific capacity (239.0 mA h g^–1 at 500 mA g^–1 and keeps relatively stable after 200 cycles) and recovery rate ability and an excellent long-term circulation ability (131.9 mA h g^–1 at 5 A g^–1, ∼0.027‰ capacity fading per cycle after 1000 cycles). In addition, the capacity variation and electrochemical kinetics of a VA electrode during cycling were studied in detail by Raman measurements and rate cyclic voltammetry measurements. The zinc storage mechanism and crystal structure change information in the charge/discharge process are evaluated by in situ X-ray diffraction (XRD). This work provides enlightening insights for the future research of organo–vanadium hybrids as cathode materials for aqueous batteries.

中文翻译：

水性锌离子电池用有机-无机阴极乙酸氧钒纳米带的溶剂热合成

有机（乙酸盐）-无机（氧钒基）材料VO(CH ₃ COO) ₂ (VA) 纳米带是通过简单的溶剂热法合成的。作为锌离子水系电池正极材料，该杂化材料表现出高度稳定的可逆比容量（239.0 mA hg ^–1 at 500 mA g ^–1并在200次循环后保持相对稳定）和恢复率能力以及优异的长-长期循环能力（131.9 mA hg ^–1在 5 A g ^–1, ~0.027‰ 容量在 1000 次循环后每循环衰减）。此外，通过拉曼测量和速率循环伏安法测量，详细研究了 VA 电极在循环过程中的容量变化和电化学动力学。通过原位X 射线衍射 (XRD)评估充电/放电过程中的锌存储机制和晶体结构变化信息。这项工作为有机钒杂化物作为水系电池正极材料的未来研究提供了启发性的见解。

更新日期：2023-03-22

点击分享查看原文

点击收藏

阅读更多本刊新发论文本刊介绍/投稿指南