Support engineering modulated Pt/hierarchical MoSe2@mesoporous hollow carbon spheres for efficient methanol-assisted water splitting

介孔材料 电解 电化学 甲醇 碳纤维 材料科学 分解水 化学工程 电解水 制氢 堆积 电解质 纳米技术 电极 化学 催化作用 复合材料 工程类 物理化学 有机化学 复合数 光催化
作者
Fulin Yang,Wei Qiao,Lice Yu,Shuli Wang,Ligang Feng
出处
期刊:Chemical Engineering Journal [Elsevier BV]
卷期号:483: 149055-149055 被引量:15
标识
DOI:10.1016/j.cej.2024.149055
摘要

Hydrogen generation from methanol via methanol-assisted water splitting is a promising electrochemical energy conversion technology but still meets challenges in addressing the low intrinsic activity and easy poisoning problems of the conventional Pt catalysts. Herein, the support engineering modulated Pt by hierarchical MoSe2@mesoporous hollow carbon support was proposed to integrate some structural and catalytic advantages for hydrogen evolution reaction (HER) and methanol oxidation reaction (MOR). Supporting engineering by layered MoSe2 nanosheets confined in mesoporous hollow carbon spheres (MHCSs) is adopted to uniformly anchor Pt nanoparticles (Pt/MoSe2@MHCS), which effectively enhances the conductivity and prevents the layer-by-layer stacking of MoSe2; Strong interaction and coupling ability between Pt and MoSe2 and the resultant electronic structure regulation of the active centers could weaken the binding strength of CO* and H* intermediates during catalysis and strengthen the oxophilicity leading to improved MOR and HER kinetics. Specifically, Pt/MoSe2@MHCS shows a significantly improved MOR current density of 81.1 mA cm−2, about 3.0 times that of the benchmark Pt/C catalyst. Meanwhile, it also exhibits the HER performance of 28 mV to achieve a kinetic current density of 10 mA cm−2 in methanol-contained electrolytes. When employed for overall methanol electrolysis, a lowered input voltage of 1.11 V can be obtained to drive the current density (10 mA cm−2) compared to that for water electrolysis (0.62 V vs. 1.73 V). The electrochemical properties of high activity, rapid catalytic kinetics, and good stability were also demonstrated due to the enhanced oxophilicity and high poisoning tolerance ability resulting from the MoSe2/carbon substrate-induced electron redistribution of Pt sites. This work reports a novel platform to address the catalysis challenges in hydrogen production via the methanol electrolysis technique.
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
等待寄云完成签到 ,获得积分10
刚刚
酷波er应助王冉冉采纳,获得10
1秒前
lcjynwe完成签到,获得积分10
2秒前
新奇完成签到 ,获得积分10
2秒前
Misty_发布了新的文献求助10
2秒前
iNk应助不会取名字采纳,获得20
2秒前
Orange应助Hannes采纳,获得10
2秒前
4秒前
多多少少忖测的情完成签到,获得积分10
4秒前
小马甲应助lx采纳,获得10
4秒前
5秒前
阔达冰兰发布了新的文献求助10
5秒前
GAO完成签到,获得积分10
5秒前
yy发布了新的文献求助10
6秒前
6秒前
6秒前
奋斗冬萱完成签到,获得积分10
6秒前
康园完成签到,获得积分10
7秒前
活泼的面包完成签到,获得积分10
9秒前
123456完成签到,获得积分10
10秒前
重要谷冬完成签到,获得积分10
10秒前
深情丸子发布了新的文献求助10
10秒前
10秒前
杰瑞完成签到,获得积分10
12秒前
12秒前
ding应助科研通管家采纳,获得10
13秒前
Akim应助科研通管家采纳,获得10
13秒前
领导范儿应助科研通管家采纳,获得10
13秒前
fang应助科研通管家采纳,获得10
13秒前
今后应助科研通管家采纳,获得10
13秒前
李小鑫吖发布了新的文献求助10
13秒前
ding应助科研通管家采纳,获得10
13秒前
搜集达人应助科研通管家采纳,获得10
13秒前
Zoe应助科研通管家采纳,获得50
14秒前
个性元枫应助科研通管家采纳,获得10
14秒前
14秒前
贰鸟应助科研通管家采纳,获得20
14秒前
华仔应助Misty_采纳,获得10
14秒前
852应助科研通管家采纳,获得10
14秒前
小马甲应助科研通管家采纳,获得30
14秒前
高分求助中
【提示信息,请勿应助】关于scihub 10000
Les Mantodea de Guyane: Insecta, Polyneoptera [The Mantids of French Guiana] 3000
徐淮辽南地区新元古代叠层石及生物地层 3000
The Mother of All Tableaux: Order, Equivalence, and Geometry in the Large-scale Structure of Optimality Theory 3000
Global Eyelash Assessment scale (GEA) 1000
Picture Books with Same-sex Parented Families: Unintentional Censorship 550
Research on Disturbance Rejection Control Algorithm for Aerial Operation Robots 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 4038524
求助须知:如何正确求助?哪些是违规求助? 3576221
关于积分的说明 11374737
捐赠科研通 3305912
什么是DOI,文献DOI怎么找? 1819354
邀请新用户注册赠送积分活动 892688
科研通“疑难数据库(出版商)”最低求助积分说明 815048