Noble copper-silver-gold trimetallic nanobowls: An efficient catalyst

Krishna Kanta Haldar; Swati Tanwar; Rathindranath Biswas; Tapasi Sen; Jouko Lahtinen

doi:10.1016/j.jcis.2019.08.047

Noble copper-silver-gold trimetallic nanobowls: An efficient catalyst

J Colloid Interface Sci. 2019 Nov 15:556:140-146. doi: 10.1016/j.jcis.2019.08.047. Epub 2019 Aug 13.

Authors

Krishna Kanta Haldar¹, Swati Tanwar², Rathindranath Biswas³, Tapasi Sen², Jouko Lahtinen⁴

Affiliations

¹ Department of Chemical Sciences, School of Basic and Applied Sciences, Central University of Punjab, 151001 Bathinda, Punjab, India. Electronic address: cskkh@cup.ac.in.
² Institute of Nano Science and Technology, 160062 Mohali, Punjab, India.
³ Department of Chemical Sciences, School of Basic and Applied Sciences, Central University of Punjab, 151001 Bathinda, Punjab, India.
⁴ Department of Applied Physics, Aalto University School of Science, FI-00076 Aalto, Finland.

PMID: 31442927
DOI: 10.1016/j.jcis.2019.08.047

Abstract

We demonstrated the design of tiny bowls of copper-silver-gold (Cu-Ag-Au) alloy type noble trimetallic nanocrystals with a unique shape. All the structural characterizations confirm the presence of copper (Cu), silver (Ag), and gold (Au) in the trimetallic nanobowls. Finally, we examined the catalytic efficiency of trimetallic Cu-Ag-Au nanobowls for reduction of 4-nitrophenol to 4-aminophenol and found that these nanobowls were 14, 23 and 43-fold more active than each of the constituent metals, Au, Cu and Ag, respectively.

Keywords: 4-Nitrophenol; Catalyst; CuAgAu; Nanobowls; Trimetallic.