Promoting electrocatalytic methanol oxidation of platinum nanoparticles by cerium modification

被引：82

作者：

Chen, Ligang ^{[1
]}

Liang, Xin ^{[1
]}

Li, Xiaotong ^{[1
]}

Pei, Jiajing ^{[1
]}

Lin, He ^{[3
]}

Jia, Dianzeng ^{[3
]}

Chen, Wenxing ^{[4
]}

Wang, Dingsheng ^{[2
]}

Li, Yadong ^{[2
]}

机构：

[1] Beijing Univ Chem Technol, Beijing Adv Innovat Ctr Soft Matter Sci & Engn, State Key Lab Chem Resource Engn, Beijing 100029, Peoples R China

[2] Tsinghua Univ, Dept Chem, Beijing 100084, Peoples R China

[3] Xinjiang Univ, Inst Appl Chem, Key Lab Adv Funct Mat Autonomous Reg, Key Lab Energy Mat Chem,Minist Educ, Urumqi 830046, Peoples R China

[4] Beijing Inst Technol, Sch Mat Sci & Engn, Beijing Key Lab Construct Tailorable Adv Funct Ma, Beijing 100081, Peoples R China

来源：

NANO ENERGY | 2020年 / 73卷

基金：

中国国家自然科学基金;

关键词：

Platinum nanoparticle; Cerium oxygenated species; Modification; Methanol oxidation reaction; Electrocatalysis; OXYGEN REDUCTION; EXCELLENT ELECTROCATALYSTS; SURFACE LATTICE; EFFICIENT; CATALYSTS; ANODE; ALLOY; INTERFACE; NANOWIRES; SITES;

D O I：

10.1016/j.nanoen.2020.104784

中图分类号：

O64 [物理化学（理论化学）、化学物理学];

学科分类号：

070304 ; 081704 ;

摘要：

The improvement of performance for Pt-based electrocatalysts is of significant importance. Here we synthesized a Ce-modified Pt nanoparticle (NP) with Cerium (III) oxygenated species (1 wt% Ce content) anchored on Pt NPs for methanol oxidation reaction (MOR). High-angle annular dark field-scanning transmission electron microscopy, X-ray photoelectron spectroscopy and X-ray absorption fine structure spectroscopy were combined to prove and analyze this special structure. Surprisingly, the electrocatalytic activity of the Ce-modified Pt NPs for MOR reached 1470 mA/mg- Pt and 8670 mA/mg- Pt in acidic and alkaline media, respectively, which were superior to those of the Pt NPs/C and commercial Pt/C. Density functional calculations showed that the structure of Pt surface was deformed by the modification of Cerium, which made CO* + OH* bind more strongly, and the stronger anchoring of OH* induced the easier removal of CO* in the potential determining step. This work would provide an effective strategy to develop efficient MOR electrocatalysts.

引用

页数：7

共 57 条

[1] Electrocatalytic performance of fuel oxidation by Pt3Ti nanoparticles [J].

Abe, Hideki ;

Matsumoto, Futoshi ;

Alden, Laif R. ;

Warren, Scott C. ;

Abruna, Hector D. ;

DiSalvo, Francis J. .

JOURNAL OF THE AMERICAN CHEMICAL SOCIETY, 2008, 130 (16) :5452-5458

[2]

[Anonymous], 2019, NANO ENERGY, DOI DOI 10.1016/J.NANOEN.2019.104048

[3]

[Anonymous], 2019, NATURE, DOI DOI 10.1038/S41586-018-0869-5

[4]

[Anonymous], 2018, J ELECTROCHEM SOC, DOI DOI 10.1149/2.0351814JES

[5]

[Anonymous], 2005, J ELECTROCHEM SOC

[6]

[Anonymous], 2014, SCIENCE, DOI DOI 10.1126/SCIENCE.1249061

[7] Control of Architecture in Rhombic Dodecahedral Pt-Ni Nanoframe Electrocatalysts [J].

Becknell, Nigel ;

Son, Yoonkook ;

Kim, Dohyung ;

Li, Dongguo ;

Yu, Yi ;

Niu, Zhiqiang ;

Lei, Teng ;

Sneed, Brian T. ;

More, Karren L. ;

Markovic, Nenad M. ;

Stamenkovic, Vojislav R. ;

Yang, Peidong .

JOURNAL OF THE AMERICAN CHEMICAL SOCIETY, 2017, 139 (34) :11678-11681

[8] Atomic Structure of Pt3Ni Nanoframe Electrocatalysts by in Situ X-ray Absorption Spectroscopy [J].

Becknell, Nigel ;

Kang, Yijin ;

Chen, Chen ;

Resasco, Joaquin ;

Kornienko, Nikolay ;

Guo, Jinghua ;

Markovic, Nenad M. ;

Somorjai, Gabor A. ;

Stamenkovic, Vojislav R. ;

Yang, Peidong .

JOURNAL OF THE AMERICAN CHEMICAL SOCIETY, 2015, 137 (50) :15817-15824

[9] Tuning the Electrocatalytic Oxygen Reduction Reaction Activity and Stability of Shape-Controlled Pt-Ni Nanoparticles by Thermal Annealing Elucidating the Surface Atomic Structural and Compositional Changes [J].

Beermann, Vera ;

Gocyla, Martin ;

Kuehl, Stefanie ;

Padgett, Elliot ;

Schmies, Henrike ;

Goerlin, Mikaela ;

Erini, Nina ;

Shviro, Meital ;

Heggen, Marc ;

Dunin-Borkowski, Rafal E. ;

Muller, David A. ;

Strasser, Peter .

JOURNAL OF THE AMERICAN CHEMICAL SOCIETY, 2017, 139 (46) :16536-16547

[10] Surface engineering of hierarchical platinum-cobalt nanowires for efficient electrocatalysis [J].

Bu, Lingzheng ;

Guo, Shaojun ;

Zhang, Xu ;

Shen, Xuan ;

Su, Dong ;

Lu, Gang ;

Zhu, Xing ;

Yao, Jianlin ;

Guo, Jun ;

Huang, Xiaoqing .

NATURE COMMUNICATIONS, 2016, 7

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