Fe-Doped Ni2P Nanosheet Arrays as Self-supported Anodes for Sodium-Ion Batteries

纳米片 材料科学 阳极 磷化物 电化学 纳米技术 化学工程 兴奋剂 纳米尺度 电极 光电子学 冶金 化学 物理化学 工程类
作者
Chao Wang,Balaji Murugesan,Wenwen Li,Xinyi Ma,Qing Zhang,Qingqing Li,Zhengxiao Guo,Yurong Cai
出处
期刊:ACS applied nano materials [American Chemical Society]
被引量:1
标识
DOI:10.1021/acsanm.4c06085
摘要

Conversion-type anode materials, particularly transition metal phosphides (TMPs), are considered to be highly promising candidates for sodium-ion batteries (SIBs) due to their substantial theoretical capacity, which can reach up to 1000 mAh g–1, as well as their cost-effectiveness. But their practical application is constrained by significant changes, including substantial volume changes during charge/discharge cycles and poor reaction kinetics. Addressing these challenges requires precise nanoscale engineering to optimize material structure and functionality. Herein, we present the fabrication of a carbon-coated, Fe-doped nickel phosphide (Fe–Ni2P@C) nanosheet array directly grown on a three-dimensional nickel foam (NF) substrate via a simple hydrothermal and phosphating process. The hierarchical nanosheet array architecture offers several nanoscale advantages: the nanosheets provide abundant active sites for electrochemical reactions and significantly reduce Na+ diffusion distances, while the carbon coating effectively suppresses the volume expansion during cycling. Additionally, Fe doping at the nanoscale introduces phosphorus vacancies and increases the material's intrinsic conductivity and electrochemical reaction kinetics. This synergistic nanoscale design enables the Fe–Ni2P@C nanosheet arrays to function as self-supported anode materials without the need for binders, additives, or additional processing steps. As a result, the material achieves exceptional sodium storage performance, exhibiting a rate capability of 317.16 mAh g–1 at a current density of 2 A g–1 and a reversible capacity of 418.89 mAh g–1 following 500 cycles at a current density of 0.5 A g–1. This study highlights the critical role of nanoscale engineering in overcoming the limitations of TMP-based anodes and provides a facile and scalable approach for developing high-performance, self-supported anode materials for SIBs of the future.
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
星星的梦完成签到,获得积分10
1秒前
完美世界应助Kelsey采纳,获得10
1秒前
魏笑白发布了新的文献求助10
3秒前
酷波er应助shenxian82133采纳,获得10
4秒前
uppnice发布了新的文献求助10
5秒前
SciGPT应助端庄的学姐采纳,获得10
5秒前
棣棣完成签到,获得积分10
6秒前
6秒前
壮观的衫完成签到,获得积分10
6秒前
sgt完成签到,获得积分10
7秒前
坦率夕阳完成签到,获得积分10
8秒前
9秒前
avc完成签到,获得积分10
9秒前
haha完成签到,获得积分10
10秒前
大模型应助拟好啊采纳,获得10
10秒前
12秒前
CipherSage应助uppnice采纳,获得10
14秒前
独白发布了新的文献求助10
14秒前
15秒前
avc发布了新的文献求助10
16秒前
18秒前
SciGPT应助迟迟采纳,获得10
18秒前
18秒前
无生发布了新的文献求助10
20秒前
orixero应助爱学习的小花生采纳,获得10
20秒前
ywl发布了新的文献求助10
24秒前
量子星尘发布了新的文献求助10
25秒前
梦鱼完成签到 ,获得积分10
26秒前
28秒前
29秒前
研友_VZG7GZ应助lzz采纳,获得10
29秒前
HQK完成签到,获得积分10
31秒前
阳佟冬卉完成签到,获得积分10
31秒前
大个应助ywl采纳,获得10
31秒前
迟迟发布了新的文献求助10
33秒前
joshar发布了新的文献求助10
36秒前
独白完成签到,获得积分10
37秒前
FashionBoy应助zzbyxh采纳,获得10
37秒前
yx_cheng应助科研通管家采纳,获得10
37秒前
科研通AI5应助科研通管家采纳,获得50
37秒前
高分求助中
A new approach to the extrapolation of accelerated life test data 1000
Picture Books with Same-sex Parented Families: Unintentional Censorship 700
ACSM’s Guidelines for Exercise Testing and Prescription, 12th edition 500
Nucleophilic substitution in azasydnone-modified dinitroanisoles 500
不知道标题是什么 500
Indomethacinのヒトにおける経皮吸収 400
Phylogenetic study of the order Polydesmida (Myriapoda: Diplopoda) 370
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 3975661
求助须知:如何正确求助?哪些是违规求助? 3520000
关于积分的说明 11200535
捐赠科研通 3256410
什么是DOI,文献DOI怎么找? 1798247
邀请新用户注册赠送积分活动 877490
科研通“疑难数据库(出版商)”最低求助积分说明 806390