Open AccessUMA BREVE REVISÃO SOBRE A CATÁLISE POR ÁTOMOS ISOLADOS: CONCEITOS E APLICAÇÕES
Author(s) -
Luanne Lima Ferreira,
Ruan Stevan de Almeida Ribeiro,
Vinicius Madriaga,
Sancler da Costa Vasconcelos,
Eric Shimabukuro,
Vinicius Rossa,
Simone Bastos Vieira,
Fábio Abreu dos Passos,
Thiago Lima
Publication year - 2021
Publication title -
química nova
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.214
H-Index - 73
eISSN - 1678-7064
pISSN - 0100-4042
DOI - 10.21577/0100-4042.20170822
Subject(s) - catalysis , homogeneous , heterogeneous catalysis , homogeneous catalysis , context (archaeology) , nanotechnology , chemistry , atom (system on chip) , materials science , physics , computer science , organic chemistry , biology , paleontology , thermodynamics , embedded system
A BRIEF OVERVIEW ON SINGLE-ATOM CATALYSIS: CONCEPTS AND APPLICATIONS. Catalytic processes became extremely important for the development of our society, especially after the second industrial revolution. Thus, the research for more efficient catalysts is an obstacle to overcome to achieve cheaper processes, higher yields, and selectivity of desired products. In this context, single-atom catalysis emerges as a promising alternative to unite the advantages of traditional homogeneous and heterogeneous catalysis. Catalysis by single-atoms is a bridge that unites in a single catalyst the ease of recovery and reuse (from heterogeneous catalysis) with the high exposure and uniformity of sites (from homogeneous catalysis). Thus, single-atom catalysts (SACs) and single-atom alloys (SAAs) have already found several applications in the literature, such as in hydrogenation, oxidation, conversion of biomass derivatives, electrocatalysis, and photocatalysis. However, it is essential to emphasize that it is still a field that is expanding and relatively new, with several opportunities and many barriers to surpass. In this review, concepts of homogeneous, enzymatic, and heterogeneous catalysis will be addressed, as well as fundamental aspects of single-atom catalysis, preparation methods, characterization, and current challenges.