Chiang Mai Journal of Science

Print ISSN: 0125-2526 | eISSN : 2465-3845

1,647
Articles
Q3 0.80
Impact Factor
Q3 1.3
CiteScore
7 days
Avg. First Decision
Outline
Figures and Tables
ARTICLE METRICS
Views 949
Downloads 277

Morphology and Catalytic Activity of Gold Core-Platinum Shell Nanoparticles

Kontee Thongthai, Laongnuan Srisombat, Surin Saipanya and Supon Ananta
* Author for corresponding; e-mail address: slaongnuan@yahoo.com
Volume: Vol.42 No.2 (APRIL 2015)
Research Article
DOI:
Received: 3 July 2014, Revised: -, Accepted: 24 September 2014, Published: -

Citation: Thongthai K., Srisombat L., Saipanya S. and Ananta S., Morphology and Catalytic Activity of Gold Core-Platinum Shell Nanoparticles, Chiang Mai Journal of Science, 2015; 42(2): 481-489.

Abstract

 Morphologies, chemical compositions and optical properties of the hybrid gold core-platinum shell, Au@Pt, nanoparticles prepared by a simple reduction method were explored via a combination of transmission electron microscopy, energy dispersive X-ray spectroscopy and UV-visible spectrophotometry techniques. Various sizes of almost spherical and monodispersed Au@Pt core-shell nanoparticles were successfully achieved by changing of Au/Pt atomic ratios. The effect of Au/Pt atomic ratio on the electrocatalytic activities for these Au@Pt nanoparticles supported on multi-walled carbon nanotubes (MWCNTs) is revealed by cyclic voltammetry in 1.0 M H2SO4 + 2.0 M methanol aqueous solution. The maximum activity is obtained by using atomic ratio of Au/Pt at ~1. Moreover, all Au@Pt/MWCNTs catalysts exhibited higher activities than that of Pt/MWCNTs catalysts.

Keywords: Bimetallic nanoparticles, Core-shell structure, Morphology, Catalyst, Methanol oxidation

Related Articles

Updated Taxonomic Insights into Auricularia (Auriculariales, Basidiomycota) in Thailand, with a New Record of Auricularia sinodelicata
DOI: 10.12982/CMJS.2026.018.

Jaturong Kumla and Nakarin Suwannarach*

Vol.53 No.1 (January 2026)
Research Article View: 286 Download: 9
Phylogenetic and Morphological Characterization of Spegazzinia Species from Oryza sativa L. in Thailand
DOI: 10.12982/CMJS.2026.014.

Xing-Guo Tian, Jia-Jun Han, Samantha C. Karunarathna, Saowaluck Tibpromma, Yongzhong Lu, Ruvishika S. Jayawardena and Dan-Feng Bao*

Vol.53 No.1 (January 2026)
Research Article View: 271 Download: 10
First Report of Bioluminescence in Omphalotus flagelliformis (Omphalotaceae, Basidiomycota) Revealed Through Photographic Evidence
DOI: 10.12982/CMJS.2026.008.

Wenhua Lu, Saowaluck Tibpromma, Nakarin Suwannarach, Jaturong Kumla, Abdallah M. Elgorban, Dong-Qin Dai, Fuqiang Yu, and Samantha C. Karunarathna*

Vol.53 No.1 (January 2026)
Research Article View: 346 Download: 14
Sexual and Asexual Morphs of Thyronectria kunmingensis sp. nov. (Nectriaceae) From Yunnan, China
DOI: 10.12982/CMJS.2025.065.

Zaw L. Tun, Vinodhini Thiyagaraja, Chitrabhanu S. Bhunjun, Sajeewa N. Maharachchikumbura, Fatimah Al-Otibi and Kevin D. Hyde

Vol.52 No.5 (September 2025)
Research Article View: 754 Download: 163
Optical Coherence Tomography (OCT) Alterations Choice for Aquatic Organism Anatomy and Morphology Analysis: A Case Study of A Giant River Prawn (Macrobrachium rosenbergii)
DOI: 10.12982/CMJS.2024.019.

Chutima Thanomsit, Samnao Saowakoon, Witchuda Prasatkaew, Sawipa Ruttanakorn, Jakkaphun Nanuam, Chanpim Kangpanich, Kosit Sreeputhorn, and Panomsak Meemon

Vol.51 No.1 (January 2024)
Research Article View: 912 Download: 697
A New Host Record of Bipolaris panici-miliacei from the Roots of a Pioneer Plant (Saccharum rufipilum) in an Abandoned Phosphate Mining Site in Southwest China
DOI: 10.12982/CMJS.2023.044.

Er-fu Yang, Zhen-xiong Zhao, Samantha C. Karunarathna, Anuruddha Karunarathna, Saowaluck Tibpromma, Ze-lin Sun, Cheng-jiao Dao, Jiu-mei Ma, Ling-pan Du and Kai Yan

Vol.50 No.5 (September 2023)
Research Article View: 1,735 Download: 798
Global Challenges in Identifying Plant Pathogenic Fungi: An Overview with Suggestions for the Way Forward
DOI: 10.12982/CMJS.2023.039.

Monika C. Dayarathne, Kasun M. Thambugala, Dinushani A. Daranagama, Amin U. Mridha, Asha J. Dissanayake, Lakmali S. Dissanayake, Sajeewa S.N. Maharachchikumbura, RMCS Rathnayake, Saisamorn Lumyong and Sinang Hongsanan

Vol.50 No.4 (July 2023)
Review Article View: 2,082 Download: 930
Two New Records of Agaricales (Psilocybe papuana and Cystoagaricus populinus) from China
DOI: 10.12982/CMJS.2023.005.

Yi Jiang, Di Zhang, Muhammad Idrees, Xiaobin Li, Jinmei Zhou and Jize Xu

Vol.50 No.1 (January 2023)
Research Article View: 1,878 Download: 1,207
New Report of Curvularia pseudobrachyspora Causing Brown Spot on Costa Rican Pitahaya Fruit (Hylocereus costaricensis) in Thailand
DOI: 10.12982/CMJS.2023.003.

Fakih Latehnuering, Chaninun Pornsuriya, Prisana Wonglom, On-Uma Ruangwong and Anurag Sunpapao

Vol.50 No.1 (January 2023)
Research Article View: 2,176 Download: 990
Two New Species of Allodiatrype from Monsoon Evergreen Broad-leaved Forest in Pu’er, Yunnan, China
DOI: 10.12982/CMJS.2022.047.

Xin-Hao Li, Hai-Xia Wu, Jin-Chen Li, Jia-Yu Song, Qiang Wang, Itthayakorn Promputtha and Nalin N. Wijayawardene

Vol.49 No.3 (Special Issue II : May 2022)
Research Article View: 6,413 Download: 516
First Report of Botryosphaeriaceae Species on Camellia sinensis from Taiwan with a Global Checklist of Botryosphaeriaceae Species on this Host
page: 1199 - 1223

Achala R. Rathnayaka, Thilini Chethana Kandawatte Wedaralalage, Alan J.L. Phillips, Jian-Kui Liu and Kevin D. Hyde

Vol.48 No.5 (September 2021)
Research Article View: 12,753 Download: 664
A Review on Bioactive Compounds, Beneficial Properties and Biotechnological Approaches of Trametes (Polyporaceae, Polyporales) and a New Record from Laos
page: 674 - 698

Kalani Kanchana Hapuarachchi, Samantha Chandranath Karunarathna, Xiu-Hong Xu, Arun Kumar Dutta, Pheng Phengsintham, Kevin David Hyde and Ting-Chi Wen

Vol.48 No.3 (Special Issue I : May 2021)
Review Article View: 1,851 Download: 1,674
Mechanical and Morphological Properties of Rice Husk-Filled Polypropylene
page: 35 - 44

Jutarat Prachayawarakorn* and Panittanat Yaembunying

Vol.31 No.1 (JANUARY 2004)
Research Article View: 1,057 Download: 277
High Yield Syngas and Performance of Ni-loaded Thai Lignite Char Catalyst from Sawdust Gasification
page: 1475 - 1486

Suparin Chaiklangmuang* and Sirimirin Meesuk

Vol.44 No.4 (October 2017)
Research Article View: 985 Download: 356
Co-Ti-O complex oxides: Hydrothermal synthesis, phase characterization, color analysis and catalytic Activity assessment
page: 857 - 867

Apinpus Rujiwatra, Natthawat Semakul, Sireenart Surinwong, Metta Chareonpanich

Vol.42 No.4 (OCTOBER 2015)
Research Article View: 934 Download: 276
A New Species of Bactrachospermum, B. khaoluangensis Chankaew, Peerapornpisal et Kumano, sp. Nov. (Batrachospermales, Rhodophyta) from Thailand
page: 1 - 10

Wanninee Chankaew*[a,b], Yuwadee Peerapornpisal[c], Shigeru Kumano[d] and Chatchai Ngamriabsakul[a]

Vol.40 No.1 (JANUARY 2013)
Research Article View: 1,039 Download: 307
One-pot Green Procedure for the Mannich Reaction Catalyzed by a Task-specific Ionic Liquid
page: 49 - 58

Guozheng Zhao and Ming Lu

Vol.39 No.1 (JANUARY 2012)
Research Article View: 968 Download: 612
Non-chloroaluminate lonic Liquids Supported the Synthesis of Substisuted Imidazoles using Microwave Irradiation
page: 601 - 607

Xiaobing Liu, Ming Lu and Yu Wang

Vol.38 No.4 (OCTOBER 2011)
Research Article View: 951 Download: 281
Influence of Suspension Characteristics on the Morphology of 3Y-ZrO2 Granules Produced by a Spray Drying Process
page: 340 - 348

Kunjana Suwunnasung, and Apinon Nuntiya

Vol.36 No.3 (SEPTEMBER 2009)
Research Article View: 997 Download: 408
Outline
Figures