The phenomenon of “dead” metal in heterogeneous catalysis: opportunities for increasing the efficiency of carbon-supported metal catalysts

The phenomenon of “dead” metal in heterogeneous catalysis: opportunities for increasing the efficiency of carbon-supported metal catalysts Full article

Journal

Chemical Science
ISSN: 2041-6520 , E-ISSN: 2041-6539

Output data

Year: 2023, Volume: 14, Number: 48, Pages: 14062-14073 Pages count : 12 DOI: 10.1039/d3sc04691e

Authors

Mironenko Roman M. ¹ , Eremin Dmitry B. ^2,3 , Ananikov Valentine P. ^1,3,4

Affiliations

1	Center of New Chemical Technologies BIC, Neftezavodskaya St. 54, Omsk 644040, Russia
2	Bridge Institute and Department of Chemistry, University of Southern California, Los Angeles, 90089-3502, USA
3	N. D. Zelinsky Institute of Organic Chemistry, Leninsky Pr. 47, Moscow 119991, Russia
4	Saint Petersburg State University, 7/9 Universitetskaya Nab., St. Petersburg, 199034, Russia

This review addresses the largely overlooked yet critical issue of “dead” metal in heterogeneous metal catalysts. “Dead” metal refers to the fraction of metal in a catalyst that remains inaccessible to reactants, significantly reducing the overall catalyst performance. As a representative example considered in detail here, this challenge is particularly relevant for carbon-supported metal catalysts, extensively employed in research and industrial settings. We explore key factors contributing to the formation of “dead” metal, including the morphology of the support, metal atom intercalation within the support layers, encapsulation of metal nanoparticles, interference by organic molecules during catalyst preparation, and dynamic behavior under microwave irradiation. Notably, the review outlines a series of strategic approaches to mitigate the occurrence of “dead” metal during catalyst preparation, thus boosting the catalyst efficiency. The knowledge gathered is important for enhancing the preparation of catalysts, especially those containing precious metals. Beyond the practical implications for catalyst design, this study introduces a novel perspective for understanding and optimizing the catalyst performance. The insights are expected to broadly impact different scientific disciplines, empowered with heterogeneous catalysis and driving innovation in energy, environmental science, and materials chemistry, among others. Exploring the “dead” metal phenomenon and potential mitigation strategies brings the field closer to the ultimate goal of high-efficiency, low-cost catalysis.

Mironenko R.M. , Eremin D.B. , Ananikov V.P.
The phenomenon of “dead” metal in heterogeneous catalysis: opportunities for increasing the efficiency of carbon-supported metal catalysts
Chemical Science. 2023. V.14. N48. P.14062-14073. DOI: 10.1039/d3sc04691e WOS Scopus OpenAlex

Web of science:	WOS:001104339400001
Scopus:	2-s2.0-85178318780
OpenAlex:	W4388825596

DB	Citing
OpenAlex	4
Scopus	3
Web of science	2