Plasma‐Induced Formation of Pt Nanoparticles with Optimized Surface Oxidation States for Methanol Oxidation and Oxygen Reduction Reactions to Achieve High‐Performance DMFCs

催化作用 甲醇 碳纳米管 材料科学 化学工程 阳极 阴极 氧化还原 纳米颗粒 氧气 化学 纳米技术 电极 有机化学 冶金 物理化学 工程类
作者
Tingting Hu,Weiheng Chen,Yubing Liu,Longxiang Gong,Zhongqing Jiang,Dinesh Bhalothia,T. Maiyalagan,Zhong‐Jie Jiang
出处
期刊:Small [Wiley]
卷期号:19 (46) 被引量:10
标识
DOI:10.1002/smll.202304076
摘要

Plasma treatment and reduction are used to synthesize Pt nanoparticles (NPs) on nitrogen-doped carbon nanotubes (p-Pt/p-NCNT) with a low Pt content. In particular, the plasma treatment is used to treat the NCNT to give it with more surface defects, facilitating a better growth of the Pt NPs, while the plasma reduction produces the Pt NPs with a reduced fraction of the surface atoms at the high oxidation states, increasing the catalytic activities of the p-Pt@p-NCNT. Even at the low Pt content (7.8 wt.%), the p-Pt@p-NCNT shows superior catalytic activities and good stabilities for methanol oxidation reaction (MOR) and oxygen reduction reaction (ORR). The density functional theory (DFT) calculations indicate that the defects generated in the plasma treatment can help the growth of the Pt NPs on the NCNTs, leading to the stronger electronic coupling between Pt and NCNT and the increased stability of the catalyst. The plasma reduction can give the Pt NPs with optimized surface oxidation states, decreasing the energy barriers of the rate-determining steps for MOR and ORR. When used as the anode and cathode catalysts for the direct methanol fuel cells (DMFCs), the p-Pt@p-NCNT exhibits a higher maximum power density of 81.9 mW cm
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
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
1秒前
上官若男应助jun采纳,获得10
1秒前
1秒前
喜悦的飞机完成签到,获得积分10
2秒前
赘婿应助薛定谔的猫采纳,获得10
2秒前
wangxiaoli0991完成签到 ,获得积分10
2秒前
2秒前
lin发布了新的文献求助10
3秒前
collins完成签到,获得积分20
4秒前
4秒前
5秒前
5秒前
小樊同学发布了新的文献求助10
5秒前
薄饼哥丶发布了新的文献求助10
6秒前
游侠客完成签到,获得积分10
6秒前
铅笔盒发布了新的文献求助10
6秒前
6秒前
6秒前
Akim应助顾文杰采纳,获得10
6秒前
6秒前
7秒前
8秒前
8秒前
8秒前
8秒前
天川发布了新的文献求助10
8秒前
ding应助maopf采纳,获得10
9秒前
9秒前
CodeCraft应助Shauna采纳,获得10
9秒前
小樊同学完成签到,获得积分10
9秒前
可爱的函函应助ckk采纳,获得10
10秒前
qiqi_smiling7发布了新的文献求助10
10秒前
10秒前
10秒前
ATYS完成签到,获得积分10
11秒前
11秒前
11秒前
11秒前
mkeale应助个别采纳,获得20
11秒前
11秒前
高分求助中
Les Mantodea de Guyane Insecta, Polyneoptera 2500
Introduction to Strong Mixing Conditions Volumes 1-3 500
Technologies supporting mass customization of apparel: A pilot project 450
China—Art—Modernity: A Critical Introduction to Chinese Visual Expression from the Beginning of the Twentieth Century to the Present Day 430
Tip60 complex regulates eggshell formation and oviposition in the white-backed planthopper, providing effective targets for pest control 400
A Field Guide to the Amphibians and Reptiles of Madagascar - Frank Glaw and Miguel Vences - 3rd Edition 400
China Gadabouts: New Frontiers of Humanitarian Nursing, 1941–51 400
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 物理 生物化学 纳米技术 计算机科学 化学工程 内科学 复合材料 物理化学 电极 遗传学 量子力学 基因 冶金 催化作用
热门帖子
关注 科研通微信公众号,转发送积分 3794083
求助须知:如何正确求助?哪些是违规求助? 3339053
关于积分的说明 10293493
捐赠科研通 3055543
什么是DOI,文献DOI怎么找? 1676722
邀请新用户注册赠送积分活动 804678
科研通“疑难数据库(出版商)”最低求助积分说明 762038