Busca avançada
Ano de início
Entree
(Referência obtida automaticamente do Web of Science, por meio da informação sobre o financiamento pela FAPESP e o número do processo correspondente, incluída na publicação pelos autores.)

Exploiting the Synergetic Behavior of PtPd Bimetallic Catalysts in the Selective Hydrogenation of Glucose and Furfural

Texto completo
Autor(es):
de Souza, Priscilla M. [1] ; Silvester, Lishil [2] ; da Silva, Anderson G. M. [3] ; Fernandes, Cibele G. [3] ; Rodrigues, Thenner S. [3] ; Paul, Sebastien [2] ; Camargo, Pedro H. C. [3] ; Wojcieszak, Robert [2]
Número total de Autores: 8
Afiliação do(s) autor(es):
[1] Univ Rio de Janeiro, Programa Engn Quim COPPE, BR-21941972 Rio De Janeiro - Brazil
[2] Univ Lille, Univ Artois, UMR 8181, ENSCL, UCCS, CNRS, Cent Lille, F-59000 Lille - France
[3] Univ Sao Paulo, Inst Quim, Dept Quim Fundamental, Av Prof Lineu Prestes 748, BR-05508000 Sao Paulo, SP - Brazil
Número total de Afiliações: 3
Tipo de documento: Artigo Científico
Fonte: CATALYSTS; v. 9, n. 2 FEB 2019.
Citações Web of Science: 0
Resumo

Mono and bimetallic catalysts based on Pt and Pd were prepared by a co-precipitation method. They were tested in liquid phase hydrogenation reactions of glucose and furfural at low temperature and pressure. The bimetallic PtPd/TiO2 catalyst proved to be an efficient material in selectively hydrogenating glucose to sorbitol. Moreover, high furfural conversion was attained under relatively soft conditions, and the furfuryl alcohol selectivity was strongly affected by the chemical composition of the catalysts. Furfuryl alcohol (FA) was the major product in most cases, along with side products such as methylfuran (MF), furan, and traces of tetrahydrofuran (THF). These results showed that the PtPd bimetallic sample was more active relative to the monometallic counterparts. A correlation between the catalytic results and the physicochemical properties of the supported nanoparticles identified key factors responsible for the synergetic behavior of the PtPd system. The high activity and selectivity were due to the formation of ultra-small particles, alloy formation, and the Pt-rich surface composition of the bimetallic particles supported on the TiO2 nanowires. (AU)

Processo FAPESP: 15/26308-7 - Otimização das propriedades físico-químicas de materiais nano-estruturados e suas aplicações em reconhecimento molecular, catálise e conversão/armazenamento de energia
Beneficiário:Roberto Manuel Torresi
Linha de fomento: Auxílio à Pesquisa - Temático
Processo FAPESP: 17/03235-0 - Valorização da biomassa oxidação do 5-hidroximetilfurfural (HMF) catalisada por nanopartículas
Beneficiário:Camila Palombo Ferraz
Linha de fomento: Bolsas no Exterior - Estágio de Pesquisa - Pós-Doutorado
Processo FAPESP: 15/50010-8 - Direct serine synthesis from glycerol derivate: looking for bimetallic synergy
Beneficiário:Pedro Henrique Cury Camargo
Linha de fomento: Auxílio à Pesquisa - Regular