Synthesis of Metastable Au-Fe Alloy Using Ordered Nanoporous Silica as a Hard Template

Paskalis Sahaya Murphin Kumar; Thiripuranthagan Sivakumar; Takeshi Fujita; Ramasamy Jayavel; Hideki Abe

doi:10.3390/met8010017

,

and

¹

Department of Applied Science and Technology, Anna University, Chennai 600025, India

²

Center for Green Research on Energy and Environmental Materials, National Institute for Materials Science, Namiki 1-1, Tsukuba, Ibaraki 305-0044, Japan

³

WPI Advanced Institute for Materials Research, Tohoku University, Sendai 980-8577, Japan

⁴

Centre for Research, Anna University, Chennai 600025, India

Metals2018, 8(1), 17;https://doi.org/10.3390/met8010017

This article belongs to the Special Issue Nanoporous Metals

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Abstract

Nanoporous Au-Fe alloy was synthesized via a wet chemistry route using ordered nanoporous silica as a hard template. The nanoporous Au-Fe consisted of aligned arrays of nanopores that were uniform in composition and ordered in hexagonal lattice, whereas Au-Fe nanoparticles synthesized without templates exhibited broad dispersions in the chemical composition and/or particle size. Nanoporous Au-Fe has potential for applications as catalysts and/or adsorbents because of the large specific surface area of 81.2 m²·g⁻¹ and high pore volume of 0.56 cm³·g⁻¹.

Keywords:

gold; iron; metastable; alloy; nanoporous; ordered nanoporous silica

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