Fluorination-enabled interface of PtNi electrocatalysts for highperformance high-temperature proton exchange membrane fuel cells

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成果类型：

期刊论文

作者：

Long, Peng;Du, Shiqian;Liu, Qie;Tao, Li*;Peng, Cong;...

通讯作者：

Tao, Li;Cheng, Yi;Wang, Shuangyin;Feng, Wei;Lu, Shanfu

作者机构：

[Long, Peng; Wang, Tehua; Du, Shiqian; Wang, Shuangyin; Liu, Qie; Gu, Kaizhi; Cheng, Yi; Tao, Li; Xie, Chao; Tao, L; Wang, SY; Chen, Ru] Hunan Univ, State Key Lab Chem Biosensing & Chemometr, Prov Hunan Key Lab Graphene Mat & Devices, Adv Catalyt Engn Res Ctr,Minist Educ,Coll Chem &, Changsha 410082, Hunan, Peoples R China.

[Peng, Cong; Feng, Wei] Tianjin Univ, Sch Mat Sci & Engn, Tianjin 300072, Peoples R China.

[Zhang, Yiqiong] Changsha Univ Sci & Technol, Coll Mat Sci & Engn, Changsha 410083, Peoples R China.

[Lu, Shanfu] Beihang Univ, Sch Space & Environm, Beijing Key Lab Bioinspired Energy Mat & Devices, Beijing 100191, Peoples R China.

通讯机构：

[Tao, L; Cheng, Y; Wang, SY] H

[Feng, Wei] T

[Lu, Shanfu] B

Hunan Univ, State Key Lab Chem Biosensing & Chemometr, Prov Hunan Key Lab Graphene Mat & Devices, Adv Catalyt Engn Res Ctr,Minist Educ,Coll Chem &, Changsha 410082, Hunan, Peoples R China.

Tianjin Univ, Sch Mat Sci & Engn, Tianjin 300072, Peoples R China.

语种：

英文

关键词：

fuel cells;fluorinated carbon;interaction;activity;stability

期刊：

中国科学：材料科学(英文版)

ISSN：

2095-8226

年：

2022

卷：

期：

页码：

904-912

DOI：

10.1007/s40843-021-1839-8

基金类别：

National Key R&D Program of China [2020YFA0710000]; National Natural Science Foundation of ChinaNational Natural Science Foundation of China (NSFC) [21825201, U19A2017]; Provincial Natural Science Foundation of HunanNatural Science Foundation of Hunan Province [2019GK2031, 2016TP1009, 2020JJ5045]; China Postdoctoral Science FoundationChina Postdoctoral Science Foundation [2020M682541]; Science and Technology Innovation Program of Hunan Province, China [2020RC2020]; Changsha Municipal Natural Science Foundation [kq2007009]

机构署名：

本校为其他机构

院系归属：

材料科学与工程学院

摘要：

High-temperature proton exchange membrane fuel cells (HT-PEMFCs) bring new opportunities for portable power generation due to their outstanding advantages such as high tolerance to fuel/air impurities and simplified heat/water management. However, carbon-supported nanostructured Pt-based catalysts running at temperatures over 150°C are challenged by the severe aggregation and carbon corrosion, thus leading to poor durability. Herein, we demonstrate that dendritic Pt-Ni nanoparticles supported on fluorinated carbon black (white carbon black) co...

摘要(中文)：

高温质子交换膜燃料电池(HT-PEMFCs)以其杂质耐受性高、系统简化等突出优势为燃料电池的发展带来了新机遇.目前广泛使用的铂碳催化剂存在严重的颗粒团聚、载体腐蚀等耐久性较差问题.本文采用氟化碳黑(白碳黑)负载的枝状Pt-Ni纳米颗粒作为HT-PEMFCs阴极催化剂,由于Ni、F强相互作用并在Pt-Ni合金表面形成了NixFy界面,可显著提升器件性能和耐受性,在160℃、干燥H2/O2条件下峰功率密度可达906 mW cm−2.本文成功利用NixFy界面提升合金催化剂的活性和稳定性,对于HT-PEMFCs催化剂的设计具有指导意义.

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Fluorination-enabled interface of PtNi electrocatalysts for highperformance high-temperature proton exchange membrane fuel cells

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