Published date: Sep 05 2016

Journal Title: KnE Engineering

Issue title: Conference on Science and Engineering for Instrumentation, Environment and Renewable Energy

Pages:

DOI: 10.18502/keg.v1i1.508

Elvy Rahmielvyrahmimawarnis@gmail.com

This paper reports a facile methode for the synthesis of fibrous bimetallic CuPt Nanoparticles (CuPt NPs) using the liquid phase deposition methods deposited directly on an indium-tin oxide (ITO) substrate. The electron microscopy analysis result shows that CuPt NPs, constructed by networked-nanorod of diameter ca. 3.5 nm and length approximately 5.5 to 6.5 nm, exhibits a quasi spherical morphology and fibrous structure with diameter approximately 196±98 nm. The differences of individual element miscibility and the effect of lattice-mismatch between Pt and Cu is the key factor for the formation of fibrous structure. XPS analysis indicated that the fibrous bimetallic CuPt NPs feature metallic properties with highly reactive surface. This may increase the charge-transfer reactions in catalytic, electrochemistry and sensors application.

[1] H. You, S. Yang, B. Ding, and H. Yang, Synthesis of colloidal metal and metal alloy nanoparticles for electrochemical energy applications, Chem Soc Rev, 42, 2880– 2904, (2013).


[2] B. N. Wanjala, J. Luo, B. Fang, D. Mott, and C.-J. Zhong, Gold-Platinum Nanoparticles: Alloying and Phase Segregation, J Mater Chem, 21, 4012–4020, (2011).


[3] A. A. Umar, E. Rahmi, A. Balouch, Y. A. R. Mohd, M. M. Salleh, and M. Oyama, Highly-Reactive Agpt Nanofern Composed of 001-Faceted Nanopyramidal Spikes for Enhanced Heterogeneous Photocatalysis Application, J Mater Chem A Mater Energy Sustain, 2, 17655–17665, (2014).


[4] J. B. Xu, T. S. Zhao, and Z. X. Liang, Synthesis of Active Platinum− Silver Alloy Electrocatalyst toward the Formic Acid Oxidation Reaction, J Phys Chem C, 112, 17362– 17367, (2008).


[5] R. Sundar Dey and C. Retna Raj, Development of an Amperometric Cholesterol Biosensor Based on Graphene− Pt Nanoparticle Hybrid Material, J Phys Chem C, 114, 21427–21433, (2010).


[6] A. Balouch, A. A. Umar, S. T. Tan, S. Nafisah, K. MS. Siti, M. M. Salleh, and M. Oyama, Fibrous, Ultra-Small Nanorod-Constructed Platinum Nanocubes Directly Grown on the Ito Substrate and Their Heterogeneous Catalysis Application, RSC Advances, 3, 19789–19792, (2013).


[7] Z. Peng, H. You, and H. Yang, An Electrochemical Approach to Ptag Alloy Nanostructures Rich in Pt at the Surface, Adv Funct Mater, 20, 3734–3741, (2010).


[8] P. R. Norton, Surface Analysis of Platinum by X-Ray Photoelectron Spectroscopy (Xps), Surf Sci, 44, 624–628, (1974).


[9] M. C. Biesinger, L. W. M. Lau, A. R. Gerson, and Smart R. S. C., Resolving Surface Chemical States in Xps Analysis of First Row Transition Metals, Oxides and Hydroxides: Sc, Ti, V, Cu and Zn, Appl Surf Sci, 257, 887–898, (2010).