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Synthesis and catalytic properties of nanoporous Pd-based alloys: chemical vs. electrochemical de-alloying of Pd-Ni-Si glasses
Author(s): L. Mihaylov; E. Vassileva; L. Lyubenova; A. Inoue; T. Spassov
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Paper Abstract

In the course of our studies on the synthesis of porous metals by de-alloying of amorphous precursors the present work was devoted to the influence of alloy composition and conditions of selective dissolution of palladium based glasses on the microstructure of the final porous material. More pronounced three-dimensional ligament structure was found at the chemically de-alloyed glasses compared to those treated electrochemically. Noticeable difference in the size of the pores and ligaments between chemically and electrochemically partially dissolved Pd30Ni50Si20 glasses compared to Pd40Ni40Si20 was also observed. Superior catalytic activity towards oxidation of ethanol of the porous metal prepared by de-alloying Pd30Ni50Si20 compared to that of the de-alloyed Pd40Ni40Si20 was established.

Paper Details

Date Published: 30 December 2019
PDF: 9 pages
Proc. SPIE 11332, International Conference on Quantum, Nonlinear, and Nanophotonics 2019 (ICQNN 2019), 1133206 (30 December 2019); doi: 10.1117/12.2553420
Show Author Affiliations
L. Mihaylov, Sofia Univ. St. Kliment Ohridksi (Bulgaria)
E. Vassileva, Sofia Univ. St. Kliment Ohridksi (Bulgaria)
L. Lyubenova, Sofia Univ. St. Kliment Ohridksi (Bulgaria)
A. Inoue, King Abdulaziz Univ. (Saudi Arabia)
Josai International Univ. (Japan)
T. Spassov, Sofia Univ. St. Kliment Ohridksi (Bulgaria)


Published in SPIE Proceedings Vol. 11332:
International Conference on Quantum, Nonlinear, and Nanophotonics 2019 (ICQNN 2019)
Alexander A. Dreischuh; Tony Spassov; Isabelle Staude; Dragomir N. Neshev, Editor(s)

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