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Towards the valorisation of glycerol by designing the surface chemistry of carbon xerogels by doping and oxygen functionalization.
Gómez González, Naila; Flores-López, Samantha L; Cadus, Luis E; Arenillas, Ana; Morales, María R.
Afiliação
  • Gómez González N; Chemical Technology Research Institute (INTEQUI-CONICET), National University of San Luis (UNSL), Faculty of Chemistry, Biochemistry and Pharmacy, Almirante Brown 1455, Capital, 5700, San Luis, Argentina.
  • Flores-López SL; Instituto de Ciencia y Tecnología Del Carbono, INCAR-CSIC, Francisco Pintado Fe, 26, 33011, Oviedo, Spain.
  • Cadus LE; Chemical Technology Research Institute (INTEQUI-CONICET), National University of San Luis (UNSL), Faculty of Chemistry, Biochemistry and Pharmacy, Almirante Brown 1455, Capital, 5700, San Luis, Argentina.
  • Arenillas A; Instituto de Ciencia y Tecnología Del Carbono, INCAR-CSIC, Francisco Pintado Fe, 26, 33011, Oviedo, Spain. Electronic address: aapuente@incar.csic.es.
  • Morales MR; Chemical Technology Research Institute (INTEQUI-CONICET), National University of San Luis (UNSL), Faculty of Chemistry, Biochemistry and Pharmacy, Almirante Brown 1455, Capital, 5700, San Luis, Argentina. Electronic address: mrmorale14@gmail.com.
Environ Res ; 256: 119190, 2024 Sep 01.
Article em En | MEDLINE | ID: mdl-38802032
ABSTRACT
Research on innovative approaches to the valorisation of glycerol as a subproduct of biodiesel production has acquired an increasing demand in the development of a circular economy around energy generation, especially, in the line of improvement of the heterogeneous metallic catalysts used. In this regard, carbon xerogels have gained importance due to their stability and modifiability, while transition metals such as copper stand out as a cost-effective alternative, resulting in a technology where surface engineering plays a crucial role in achieving competitive catalytic activity. Building upon this, current research evaluates doped xerogels (Si, N, or GO) as supports of Cu and catalysts by themselves for glycerol oxidation. Benefits from the incorporation of oxygenated functional groups (OFG) were also evaluated. Results showed a consistently higher selectivity towards lactic acid (LA) across all catalysts and competitive catalytic conversion. In this performance, dopants played a crucial role in surface acid-base characteristics, while oxygenated functional groups (OFG) influenced copper adsorption, dispersion, and reducibility. Notably, the Cu/CXN-f catalyst demonstrated the highest LA yield by combining the effect of N as a doping species, with the presence of OFG and the formation of appropriated metallic Cu domains. This research underscores the potential of carbon xerogels in the tailored catalyst design, contributing to sustainable chemical production through their customizable textural and chemical properties.
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Texto completo: 1 Coleções: 01-internacional Base de dados: MEDLINE Assunto principal: Oxigênio / Carbono / Cobre / Géis / Glicerol Idioma: En Revista: Environ Res Ano de publicação: 2024 Tipo de documento: Article País de afiliação: Argentina País de publicação: Holanda
Texto completo
Adicionar na Minha BVS
Imprimir
XML
PubMed Links
Buscar no Google

Texto completo: 1 Coleções: 01-internacional Base de dados: MEDLINE Assunto principal: Oxigênio / Carbono / Cobre / Géis / Glicerol Idioma: En Revista: Environ Res Ano de publicação: 2024 Tipo de documento: Article País de afiliação: Argentina País de publicação: Holanda