Advancing Insights into Electrochemical Pre‐Treatments of Supported Nanoparticle Electrocatalysts by Combining a Design of Experiments Strategy with In Situ Characterization

材料科学 表征(材料科学) 电化学 纳米技术 纳米颗粒 催化作用 电化学能量转换 实验设计 溶解 电极 化学工程 物理化学 工程类 化学 统计 生物化学 数学
作者
Aniket S. Mule,Kevin Tran,Ashton M. Aleman,Yamile E. Cornejo‐Carrillo,Gaurav A. Kamat,Michaela Burke Stevens,Thomas F. Jaramillo
出处
期刊:Advanced Energy Materials [Wiley]
被引量:1
标识
DOI:10.1002/aenm.202401939
摘要

Abstract Activation, break‐in, and/or pre‐treatment protocols are generally applied to energy conversion devices before regular operation to reach stable performance. There remains much to understand about the relationships among physical properties, performance, and electrochemical pre‐treatments. Here, a design‐of‐experiments (DoE) strategy is employed to address this gap by demonstrating the influence of five pre‐treatment parameters for carbon‐supported Pt‐nanoparticle catalysts on the electrocatalytic oxygen reduction reaction (ORR). A subset of pre‐treatments, developed using a central composite design, are tested in a flow cell combined with an inductively‐coupled plasma mass spectrometer (on‐line ICP‐MS). The DoE‐based approach facilitates comprehensive insights from two orders of magnitude fewer experiments than a conventional grid search. The coupled on‐line ICP‐MS setup enables effective catalysis and real‐time catalyst dissolution data. Leveraging insights from DoE for on‐line ICP‐MS and additional characterization, a model is built between the degradation of a multi‐dimensional supported Pt surface, its performance, and applied electrochemical parameters. These investigations identify surface modifications, such as oxidation, and subsequent restructuring of Pt during pre‐treatment as a primary cause of performance deterioration during ORR. By combining DoE with advanced characterization techniques, a powerful approach is demonstrated to gain a mechanistic understanding of pre‐treatment protocols that can be broadly adapted to various reaction chemistries.
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
闪闪如南发布了新的文献求助10
刚刚
深情安青应助一二不休采纳,获得10
1秒前
3秒前
123完成签到,获得积分10
3秒前
不扯先生完成签到,获得积分10
4秒前
柳絮完成签到,获得积分20
5秒前
lll完成签到,获得积分10
5秒前
sdl完成签到,获得积分10
5秒前
Orange应助孟婆的碗采纳,获得10
6秒前
zhangmy1989发布了新的文献求助30
6秒前
6秒前
清秀的不言完成签到 ,获得积分10
6秒前
杂化轨道退役研究员完成签到,获得积分10
6秒前
FashionBoy应助tanglu采纳,获得10
7秒前
8秒前
闪闪如南完成签到,获得积分10
9秒前
wjxcl完成签到,获得积分10
10秒前
10秒前
10秒前
12233完成签到,获得积分10
11秒前
11秒前
洪武完成签到,获得积分20
11秒前
12秒前
Yuantian发布了新的文献求助10
13秒前
传奇3应助浪花淘尽英雄采纳,获得10
14秒前
流川枫完成签到,获得积分10
14秒前
赘婿应助leo采纳,获得10
14秒前
追寻夏烟完成签到 ,获得积分10
15秒前
闪闪寒云完成签到 ,获得积分10
15秒前
13633501455完成签到 ,获得积分10
16秒前
阿里完成签到,获得积分10
16秒前
蓁蓁发布了新的文献求助10
17秒前
科研通AI5应助加百莉采纳,获得10
17秒前
WELXCNK完成签到,获得积分10
18秒前
GG波波完成签到,获得积分10
19秒前
susu完成签到 ,获得积分10
19秒前
20秒前
20秒前
海阔天空发布了新的文献求助10
21秒前
Loooong发布了新的文献求助10
22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 4038569
求助须知:如何正确求助?哪些是违规求助? 3576279
关于积分的说明 11374944
捐赠科研通 3305979
什么是DOI,文献DOI怎么找? 1819354
邀请新用户注册赠送积分活动 892698
科研通“疑难数据库(出版商)”最低求助积分说明 815048