已入深夜,您辛苦了!由于当前在线用户较少,发布求助请尽量完整地填写文献信息,科研通机器人24小时在线,伴您度过漫漫科研夜!祝你早点完成任务,早点休息,好梦!

Formation of Ni-doped MoS2 nanosheets on N-doped carbon nanotubes towards superior hydrogen evolution

塔菲尔方程 兴奋剂 碳纳米管 二硫化钼 电催化剂 煅烧 材料科学 催化作用 电导率 化学工程 无机化学 纳米技术 化学 电化学 复合材料 电极 有机化学 物理化学 光电子学 工程类
作者
Tao Dong,Xiao Zhang,Peng Wang,Hsueh‐Shih Chen,Ping Yang
出处
期刊:Electrochimica Acta [Elsevier BV]
卷期号:338: 135885-135885 被引量:84
标识
DOI:10.1016/j.electacta.2020.135885
摘要

Molybdenum disulfide (MoS2) is one of the promising candidates for hydrogen evolution reaction (HER), it’s HER properties can be extremely enhanced by the construction of nanostructure and the regulation of electronic structure. In this paper, hierarchical composites with MoS2 and carbon nanotubes (CNTs) as the noble metal-free electrocatalysts for HER were fabricated through calcination and hydrothermal processes, in which the MoS2 nanosheets with Ni atoms incorporation were vertically grown on the outsides of nitrogen (N)-doped CNTs. The constructed hierarchical structures provide large specific surface area of about 150 m2 g−1 and high structure stability. Importantly, the MoS2 nanosheets with enlarged interlayer spacing possess ultrathin structure of about 4 nm in thickness. Owing to the incorporation of Ni atoms, abundant unsaturated S atoms are obtained in the basal plane, which leading to more active sites exposed during HER processes. Meanwhile, N-doped CNTs can act as the substrate for MoS2 nanosheets growing and simultaneously improve the conductivity of catalyst. Based on the synergy of hierarchical structure, increased active sites and enhanced conductivity, the as-prepared electrocatalysts exhibit superior HER activity with low overpotentials, small Tafel slopes and long-time durability in both acidic and alkaline electrolytes. The overpotentials of 158 and 179 mV were required to drive HER current density up to 10 mA cm−2 in 0.5 M H2SO4 and 1.0 M KOH, respectively. This work reports a highly efficient MoS2-based electrocatalyst for HER via fabricating hierarchical structure and doping Ni atoms.
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
猫瓜西发布了新的文献求助10
刚刚
刚刚
贰鸟应助咋取名字采纳,获得10
刚刚
刚刚
刚刚
葛粑粑完成签到 ,获得积分10
1秒前
2秒前
5秒前
mxm12138发布了新的文献求助30
6秒前
liuyue发布了新的文献求助10
7秒前
11秒前
11秒前
Orange应助Lidocaine采纳,获得10
12秒前
12秒前
TRY发布了新的文献求助10
13秒前
Fezz完成签到 ,获得积分10
15秒前
18秒前
19秒前
19秒前
22秒前
23秒前
领导范儿应助俏皮的白柏采纳,获得10
27秒前
28秒前
28秒前
Lidocaine发布了新的文献求助10
28秒前
wiky完成签到,获得积分10
32秒前
大个应助ma采纳,获得10
32秒前
希特勒完成签到,获得积分20
32秒前
zhongu发布了新的文献求助10
32秒前
32秒前
万能图书馆应助HongY采纳,获得10
34秒前
34秒前
Lidocaine完成签到,获得积分10
34秒前
希特勒发布了新的文献求助10
37秒前
39秒前
39秒前
1218完成签到 ,获得积分10
42秒前
47秒前
48秒前
苏和杨发布了新的文献求助10
50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 3989811
求助须知:如何正确求助?哪些是违规求助? 3531927
关于积分的说明 11255560
捐赠科研通 3270706
什么是DOI,文献DOI怎么找? 1805035
邀请新用户注册赠送积分活动 882181
科研通“疑难数据库(出版商)”最低求助积分说明 809190