利用废旧锂离子电池回收的粗制硫酸锰制备二氧化锰纳米材料
Preparation of Manganese Dioxide Nanomaterials by Recycling Crude Manganese Sulfate from Spent Lithium-ion Batteries
潘曜灵 1郑灵霞 1胡倩倩 1王欣平 1甄爱钢 2孔繁振 2刘元龙 2郑华均1
作者信息
- 1. 浙江工业大学,浙江杭州 310014
- 2. 浙江天能新材料有限公司,浙江湖州 313299
- 折叠
摘要
以废旧锂离子电池采用湿法冶金回收工艺生产的粗制MnSO4作为锰源,当MnSO4和KMnO4的物质的量比为1∶3,在150 ℃下水热反应12h得到具有水钠锰矿型晶型、花球状结构的MnO2材料.以该材料为催化剂氧化去除甲醛,在60 min时间内甲醛去除率接近100％,其催化性能与以分析纯MnSO4作为锰源的材料相当;且经过100次循环测试,去除甲醛的性能稳定.
Abstract
Crude MnSO4 from hydrometallurgical recovery of spent lithium-ion battery was used as manganese source.The optimum reaction conditions were as follows:the molar ratio of MnSO4 to KMnO4 was 1∶3,and the hydrothermal reaction was conducted at 150 ℃ for 12 h.δ-MnO2 with flower ball like structure was prepared under optimal conditions.The formaldehyde removal rate was close to 100％within 60 min using this material as the catalyst,and its catalytic performance was comparable to that of the material using pure MnSO4 as the manganese source.And after 100 cycles of testing,the removal of formaldehyde performance was stable.
关键词
废旧锂离子电池/粗制硫酸锰/二氧化锰/除甲醛Key words
spent lithium-ion batteries/crude manganese sulfate/manganese dioxide/formaldehyde removal引用本文复制引用
基金项目
浙江省重点研发择优委托项目(2020C03G2022586)
出版年
2024
NETL
NSTL
万方数据