Please wait a minute...
Acta Phys. -Chim. Sin.  2005, Vol. 21 Issue (01): 74-78    DOI: 10.3866/PKU.WHXB20050115
Spectroscopic Characterization and Electrocatalytic Properties of Core-Shell Au-Pt Nanoparticles
State Key Laboratory of Physical Chemistry of Solid Surface, Department of Chemistry, Xiamen University, Xiamen 361005
Download:   PDF(1671KB) Export: BibTeX | EndNote (RIS)      

Abstract  Core-shell Au-Pt nanoparticles were synthesized by chemical reduction method. The mean diameter of the nanoparticles was determined to be 27 nm by transmission electron microscope (TEM). The prepared nanoparticles were characterized by ultraviolet-visible (UV-Vis) and infrared transmission spectroscopy. The disappearance of the characteristic peak near 520 nm of Au nanoparticles in UV-Vis spectroscopy confirmed the formation of the core-shell structure. Using infrared transmission spectroscopy, the geminal CO adsorbates that yielded a doublet IR band at around 2110 cm-1 and 2063 cm-1 on core-shell Au-Pt nanoparticles were detected for the first time. The core-shell Au-Pt nanoparticles supported on GC (glassy carbon) substrate as electrode exhibited good electrocatalytic properties for the oxidation of adsorbed CO (COad) species. The onset and peak potentials of COad oxidation were negatively shifted 0.45 and 0.11 V, respectively, in referring to the values measured on a bulk Pt electrode.

Key wordsCore-shell      Au-Pt nanoparticles      Geminal CO      CO oxidation     
Received: 22 June 2004      Published: 15 January 2005
Corresponding Authors: SUN Shi-Gang     E-mail:
Cite this article:

TIAN Na;CHEN Wei;SUN Shi-Gang. Spectroscopic Characterization and Electrocatalytic Properties of Core-Shell Au-Pt Nanoparticles. Acta Phys. -Chim. Sin., 2005, 21(01): 74-78.

URL:     OR

[1] Hai-Bo SHEN,Hao JIANG,Yi-Si LIU,Jia-Yu HAO,Wen-Zhang LI,Jie LI. Cobalt@cobalt Carbide Supported on Nitrogen and Sulfur Co-Doped Carbon: an Efficient Non-Precious Metal Electrocatalyst for Oxygen Reduction Reaction[J]. Acta Phys. -Chim. Sin., 2017, 33(9): 1811-1821.
[2] Guo-Min LI,Bao-Shun ZHU,Li-Ping LIANG,Yu-Ming TIAN,Bao-Liang LÜ,Lian-Cheng WANG. Core-Shell Co3Fe7@C Composite as Efficient Microwave Absorbent[J]. Acta Phys. -Chim. Sin., 2017, 33(8): 1715-1720.
[3] Xue-Hui HUANG,Xiao-Hui SHANG,Peng-Ju NIU. Surface Modification of SBA-15 and Its Effect on the Structure and Properties of Mesoporous La0.8Sr0.2CoO3[J]. Acta Phys. -Chim. Sin., 2017, 33(7): 1462-1473.
[4] Yang Lü,Yu-Jiang SONG,Hui-Yuan LIU,Huan-Qiao LI. Pd-Containing Core/Pt-Based Shell Structured Electrocatalysts[J]. Acta Phys. -Chim. Sin., 2017, 33(2): 283-294.
[5] Mingshu CHEN. Toward Understanding the Nature of the Active Sites and Structure-Activity Relationships of Heterogeneous Catalysts by Model Catalysis Studies[J]. Acta Phys. -Chim. Sin., 2017, 33(12): 2424-2437.
[6] Qiao-Wan CHANG,Fei XIAO,Yuan XU,Min-Hua SHAO. Core-Shell Electrocatalysts for Oxygen Reduction Reaction[J]. Acta Phys. -Chim. Sin., 2017, 33(1): 9-17.
[7] Yong-Bing GU,Qiu-Xia CAI,Xian-Lang CHEN,Zhen-Zhan ZHUANG,Hu ZHOU,Gui-Lin ZHUANG,Xing ZHONG,Dong-Hai MEI,Jian-Guo WANG. Theoretical Insights into Role of Interface for CO Oxidation on Inverse Al2O3/Au(111) Catalysts[J]. Acta Phys. -Chim. Sin., 2016, 32(7): 1674-1680.
[8] Yong-Chang JIA,Shu-Yuan WANG,Lian MENG,Ji-Qing LU,Meng-Fei LUO. Effects of Zr Addition on CO and CH4 Catalytic Oxidation over PdO/PdO/Ce1-xPdxO2-δ Catalyst[J]. Acta Phys. -Chim. Sin., 2016, 32(7): 1801-1809.
[9] Ling ZHANG,Hai-Yan WANG,Zhong-Xiang JIANG,Yu-Jia WANG. Synthesis and Catalytic Activity of Core-Shell MFI/CHA Zeolites[J]. Acta Phys. -Chim. Sin., 2016, 32(3): 745-752.
[10] Hong ZHU,Ming-Chuan LUO,Ye-Zheng CAI,Zhao-Nan SUN. Core-Shell Structured Electrocatalysts for the Cathodic Oxygen Reduction Reaction in Proton Exchange Membrane Fuel Cells[J]. Acta Phys. -Chim. Sin., 2016, 32(10): 2462-2474.
[11] Liu-Xuan LUO,Shui-Yun SHEN,Feng-Juan ZHU,Jun-Liang ZHANG. Formic Acid Oxidation by Pd Monolayers on Pt3Ni Nanocubes[J]. Acta Phys. -Chim. Sin., 2016, 32(1): 337-342.
[12] Wei-Xin HUANG,Kun QIAN,Zong-Fang WU,Shi-Long CHEN. Structure-Sensitivity of Au Catalysis[J]. Acta Phys. -Chim. Sin., 2016, 32(1): 48-60.
[13] Xiao-Kun. LI,Dong-Dong. MA,Yan-Ping. ZHENG,Hong. ZHANG,Ding. DING,Ming-Shu. CHEN,Hui-Lin. WAN. Performance of CO Oxidation over Highly Dispersed Gold Catalyst on TiOx/SiO2 Composite Supports[J]. Acta Phys. -Chim. Sin., 2015, 31(9): 1753-1760.
[14] XU Ke, CHENG Yi, SUN Bo, PEI Yan, YAN Shi-Run, QIAO Ming-Hua, ZHANG Xiao-Xin, ZONG Bao-Ning. Fischer-Tropsch Synthesis over Skeletal Co@HZSM-5 Core-Shell Catalysts[J]. Acta Phys. -Chim. Sin., 2015, 31(6): 1137-1144.
[15] CHEN Hui, CHEN Dan, XIE Wei-Miao, ZHENG Xiang, LI Guo-Hua. Preparation and Electrocatalytic Activity of Tungsten Carbide and Tungsten-Iron Carbide Composite with Core-Shell Structure[J]. Acta Phys. -Chim. Sin., 2014, 30(5): 891-898.