Fabrication of Nanoporous Ni by Chemical Dealloying Al from Ni-Al Alloys for Lithium-ion Batteries

材料科学 纳米孔 合金 锂(药物) 扫描电子显微镜 微观结构 多孔性 金属间化合物 化学工程 冶金 纳米技术 复合材料 医学 工程类 内分泌学
作者
Md. Arafat Rahman,Xinkun Zhu,Cuié Wen
出处
期刊:International Journal of Electrochemical Science [Elsevier BV]
卷期号:10 (5): 3767-3783 被引量:16
标识
DOI:10.1016/s1452-3981(23)06578-1
摘要

Nanoporous nickel (np-Ni) was fabricated through dealloying of Ni-Al alloys and its application in lithium-ion batteries (LIBs) was assessed. The effect of alloy composition of the Ni-Al alloys on the formation of np-Ni has been investigated using X-ray diffraction (XRD), scanning electron microscopy combined with energy dispersive X-ray spectrometry (SEM-EDX), and 3D profilometry analysis. The experimental results show that the Ni-Al alloy composition has a significant effect on the dealloying feasibility, the phase constituents and the microstructures of the resultant np-Ni. As compared to Ni50Al50 alloy, Ni30Al70 was easier for dealloying since the percentage of Ni content is higher in Ni50Al50. SEM images revealed that the np-Ni exhibited approximately a mean inner diameter of 71.10 ± 43.69 nm and 40.84 ± 24.70 nm for the Ni30Al70 and Ni50Al50 alloy, respectively. Pore distribution analysis revealed that due to the multiple intermetallic phases in the precursor Ni-Al alloys, the nanoporous structure was heterogeneous with a large variation in pore size and porosity. 3D profilometry revealed that almost all of the surfaces of the as-formed np-Ni displayed a leptokurtoic distribution. In addition, the surface area, pore volume, and mean pore diameter of the np-Ni were assessed using Brunauer-Emmett-Teller (BET) analysis. The specific surface area of the np-Ni dealloyed from Ni30Al70 alloy was as high as 198.70 m2 g-1 compared to 9.46 m2 g-1 for dealloyed from Ni50Al50 alloy. The as-dealloyed np-Ni was used as negative electrode of LIBs and the performance was evaluated. The dealloyed np-Ni from Ni30Al70 alloy with an oxide (NiO) layer surface and highly conductive Ni metal cores exhibited maximum discharge capacity of 651 mA h g-1 at 1C rate after 9th cycle, which is reduced to a neglectable level of 80 mA h g-1 after 150th cycles.
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
木偶关注了科研通微信公众号
刚刚
1秒前
佩佩发布了新的文献求助10
1秒前
Qingqing完成签到,获得积分10
1秒前
1秒前
假面超人发布了新的文献求助10
1秒前
遂安完成签到,获得积分10
1秒前
哇哇哇哇哇完成签到,获得积分10
2秒前
豆花发布了新的文献求助10
2秒前
学术宝马发布了新的文献求助10
3秒前
研友_VZG7GZ应助倾慕采纳,获得10
3秒前
xiaxue完成签到,获得积分10
4秒前
Ava应助李李李采纳,获得10
4秒前
4秒前
honghuxian发布了新的文献求助10
5秒前
汪美琪完成签到,获得积分10
5秒前
深情安青应助guozi采纳,获得10
5秒前
孤独巡礼完成签到 ,获得积分10
6秒前
绿豆蛙完成签到,获得积分10
7秒前
yan123发布了新的文献求助10
7秒前
小蘑菇应助科研通管家采纳,获得10
8秒前
理想国的过客完成签到,获得积分10
8秒前
大模型应助科研通管家采纳,获得10
8秒前
Rondab应助科研通管家采纳,获得10
8秒前
希望天下0贩的0应助SWJ采纳,获得10
8秒前
所所应助科研通管家采纳,获得10
9秒前
JamesPei应助科研通管家采纳,获得10
9秒前
9秒前
CipherSage应助科研通管家采纳,获得10
9秒前
9秒前
汉堡包应助科研通管家采纳,获得10
9秒前
9秒前
隐形曼青应助科研通管家采纳,获得30
9秒前
珈小羽完成签到,获得积分10
10秒前
lalala发布了新的文献求助10
10秒前
打打应助shinn采纳,获得10
11秒前
labxgr完成签到,获得积分10
11秒前
dique3hao完成签到 ,获得积分10
11秒前
aaaa驳回了zzzzzzzp应助
12秒前
Hellowa发布了新的文献求助10
12秒前
高分求助中
A new approach to the extrapolation of accelerated life test data 1000
Cognitive Neuroscience: The Biology of the Mind 1000
Technical Brochure TB 814: LPIT applications in HV gas insulated switchgear 1000
ACSM’s Guidelines for Exercise Testing and Prescription, 12th edition 500
Picture Books with Same-sex Parented Families: Unintentional Censorship 500
不知道标题是什么 500
A Preliminary Study on Correlation Between Independent Components of Facial Thermal Images and Subjective Assessment of Chronic Stress 500
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 3969458
求助须知:如何正确求助?哪些是违规求助? 3514286
关于积分的说明 11173363
捐赠科研通 3249652
什么是DOI,文献DOI怎么找? 1794948
邀请新用户注册赠送积分活动 875501
科研通“疑难数据库(出版商)”最低求助积分说明 804836