Upcycling end of lithium cobalt oxide batteries to electrocatalyst for oxygen reduction reaction in direct methanol fuel cell via sustainable approach

电催化剂 石墨烯 催化作用 氧化物 材料科学 无机化学 碳纤维 氧化钴 锂(药物) 化学 化学工程 电极 纳米技术 电化学 冶金 有机化学 复合数 工程类 复合材料 内分泌学 医学 阳极 物理化学
作者
Keyru Serbara Bejigo,Kousik Bhunia,Jungho Kim,Chaehyeon Lee,Seoin Back,Sang‐Jae Kim
出处
期刊:Journal of Energy Chemistry [Elsevier BV]
卷期号:82: 148-157 被引量:24
标识
DOI:10.1016/j.jechem.2023.03.042
摘要

Recycling spent lithium-ion batteries (SLIBs) has become essential to preserve the environment and reclaim vital resources for sustainable development. The typical SLIBs recycling concentrated on separating valuable components had limitations, including high energy consumption and complicated separation processes. This work suggests a safe hydrometallurgical process to recover usable metallic cobalt from depleted LiCoO2 batteries by utilizing citric acid as leachant and hydrogen peroxide as an oxidizing agent, with ethanol as a selective precipitating agent. The anode graphite was also recovered and converted to graphene oxide (GO). The above components were directly resynthesized to cobalt-integrated nitrogen-doped graphene (Co@NG). The Co@NG showed a decent activity towards oxygen reduction reaction (ORR) with a half-wave potential of 0.880 V vs. RHE, almost similar to Pt/C (0.888 V vs. RHE) and with an onset potential of 0.92 V vs. RHE. The metal-nitrogen-carbon (Co-N-C) having the highest nitrogen content has decreased the barrier for ORR since the reaction was enhanced for Co@NG-800, as confirmed by density functional theory (DFT) simulations. The Co@NG cathode catalyst coupled with commercial Pt-Ru/C as anode catalyst exhibits excellent performance for direct methanol fuel cell (DMFC) with a peak power density of 34.7 mW cm−2 at a discharge current density of 120 mA cm−2 and decent stability, indicating the promising utilization of spent battery materials in DMFC applications. Besides, lithium was recovered from supernatant as lithium carbonate by coprecipitation process. This work avoids sophisticated elemental separation by utilizing SLIBs for other renewable energy applications, lowering the environmental concerns associated with recycling.
最长约 10秒,即可获得该文献文件

科研通智能强力驱动
Strongly Powered by AbleSci AI
更新
PDF的下载单位、IP信息已删除 (2025-6-4)

科研通是完全免费的文献互助平台,具备全网最快的应助速度,最高的求助完成率。 对每一个文献求助,科研通都将尽心尽力,给求助人一个满意的交代。
实时播报
刚刚
1秒前
星辰大海应助樱桃窝窝头采纳,获得10
2秒前
258369完成签到,获得积分10
3秒前
4秒前
5秒前
Sunwenrui发布了新的文献求助10
6秒前
薛华倩发布了新的文献求助10
10秒前
白白SAMA123发布了新的文献求助10
10秒前
10秒前
昏睡的飞机完成签到,获得积分10
10秒前
11秒前
12秒前
14秒前
miaojuly发布了新的文献求助10
14秒前
共享精神应助追寻筮采纳,获得10
14秒前
15秒前
莫歌完成签到 ,获得积分10
15秒前
2889580752发布了新的文献求助10
16秒前
量子星尘发布了新的文献求助10
16秒前
杨冠文发布了新的文献求助10
16秒前
HOME发布了新的文献求助10
18秒前
liz_应助努力工作的人采纳,获得10
19秒前
Lycerdoctor发布了新的文献求助10
19秒前
东瓜魔法师完成签到,获得积分10
19秒前
杨冠文完成签到,获得积分10
21秒前
21秒前
Owen应助肖肖采纳,获得10
22秒前
han应助薛华倩采纳,获得10
23秒前
Rational完成签到,获得积分10
23秒前
祁i应助liuzengzhang666采纳,获得10
24秒前
可爱的函函应助A阿澍采纳,获得10
25秒前
明理凝阳完成签到,获得积分10
26秒前
26秒前
26秒前
2889580752完成签到,获得积分20
28秒前
28秒前
dreamer完成签到,获得积分10
29秒前
YYJ发布了新的文献求助10
31秒前
31秒前
高分求助中
A new approach to the extrapolation of accelerated life test data 1000
ACSM’s Guidelines for Exercise Testing and Prescription, 12th edition 500
‘Unruly’ Children: Historical Fieldnotes and Learning Morality in a Taiwan Village (New Departures in Anthropology) 400
Indomethacinのヒトにおける経皮吸収 400
Phylogenetic study of the order Polydesmida (Myriapoda: Diplopoda) 370
基于可调谐半导体激光吸收光谱技术泄漏气体检测系统的研究 350
Robot-supported joining of reinforcement textiles with one-sided sewing heads 320
热门求助领域 (近24小时)
化学 材料科学 医学 生物 工程类 有机化学 生物化学 物理 内科学 纳米技术 计算机科学 化学工程 复合材料 遗传学 基因 物理化学 催化作用 冶金 细胞生物学 免疫学
热门帖子
关注 科研通微信公众号,转发送积分 3988868
求助须知:如何正确求助?哪些是违规求助? 3531255
关于积分的说明 11253071
捐赠科研通 3269858
什么是DOI,文献DOI怎么找? 1804822
邀请新用户注册赠送积分活动 881994
科研通“疑难数据库(出版商)”最低求助积分说明 809035