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General Information
    • ISSN: 1793-8198
    • Frequency: Quarterly
    • DOI: 10.18178/IJMMM
    • Editor-in-Chief: Prof. K. M. Gupta, Prof. Ian McAndrew
    • Executive Editor: Ms. Cherry L. Chen
    • Abstracting/Indexing: EI (INSPEC, IET), Chemical Abstracts Services (CAS), Engineering & Technology Digital Library,  ProQuest, Crossref, Ulrich's Periodicals Directory, DOAJ, and Electronic Journals Library .
    • E-mail ijmmm@ejournal.net
Editor-in-chief
Prof. Ian McAndrew
Embry Riddle Aeronautical University, UK.
It is my honor to be the editor-in-chief of IJMMM. I will do my best to help develop this journal better.

IJMMM 2014 Vol.2(1): 1-4 ISSN: 1793-8198
DOI: 10.7763/IJMMM.2014.V2.86

Nonstoichiometric Polyelectrolyte Complexes: Smart Nanoreactors for Alloy and Multimetallic Catalyst

Md. Shahinul Islam, Won San Choi, and Ha-Jin Lee
Abstract—This work efforts to demonstrates synthesis and potential employment of bimetallic alloy and multimetallic coexisting mixture of metal nanoparticles (NPs) using spherical nonstoichiometric polyelectrolyte complexes (PECs) in aqueous solution, whereas PECs act both as a template to implant metal precursors and nanoreactor for diverse architecture of metal NPs. Alloy-type metal NP-embedded PECs were synthesized by drop wise mixing of two types of oppositely-charged weak PEs preloaded with metal precursors followed by coreduction process. Furthermore, individual metal NPs (e.g. Au, Ag, or Pd) stabilized by PEs were mixed into a different volume ratio and results in bi- or tri-metallic NP-embedded PECs structure where each NPs exist as separate entities rather than alloy or core-shell structure. Catalytic activities of the synthesized materials were tested for reduction of 4-nitrophenol to useable 4-aminophenol. Moreover, they exhibit promising performances for surface enhanced Raman scattering (SERS) activities.

Index Terms—Alloy, nanoreactor, nonstoichiometric polyelectrolyte complexes, synergistic effect.

Md. S. Islam and H.-J. Lee are with the Jeonju Centre of Korea Basic Science Institute, 664-14 Dukjindong 1-ga, Dukjin-gu, Jeonju, 561-756, Korea (e-mail: shahinul@jbnu.ac.kr, hajinlee@kbsi.re.kr). W. S. Choi is with the Department of Chemical and Biological Engineering, Hanbat National University, San 16-1, Dukmyoung dong, Yuseong-gu, Daejeon 305-719, Korea (e-mail: choiws@hanbat.ac.kr).

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Cite:Md. Shahinul Islam, Won San Choi, and Ha-Jin Lee, "Nonstoichiometric Polyelectrolyte Complexes: Smart Nanoreactors for Alloy and Multimetallic Catalyst," International Journal of Materials, Mechanics and Manufacturing vol. 2, no. 1, pp. 1-4, 2014.

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