Carbon supported Ru-Ni bimetallic catalysts for the enhanced one-pot conversion of cellulose to sorbitol

被引：81
|
作者：
Ribeiro, Lucilia S. [1 ]
Delgado, Juan J. [2 ]
Orfao, Jose J. M. [1 ]
Pereira, M. Fernando R. [1 ]
机构：
[1] Univ Porto, Lab Proc Separacao & Reacao, Lab Catalise & Mat LSRE LCM, Dept Engn Quim,Fac Engn, Rua Dr Roberto Frias, P-4200465 Oporto, Portugal
[2] Univ Cadiz, Fac Ciencias, Dept Ciencia Mat & Ingn Met & Quim Inorgan, Campus Rio San Pedro, Cadiz 11510, Spain
来源：
APPLIED CATALYSIS B-ENVIRONMENTAL | 2017年 / 217卷
关键词：
Cellulose; Sorbitol; Hydrolytic hydrogenation; Ru-Ni catalysts; HYDROLYTIC HYDROGENATION; SUGAR ALCOHOLS; SELECTIVE CONVERSION; ETHYLENE-GLYCOL; CHEMICALS; HEXITOLS; POLYOLS; GLUCOSE;
D O I：
10.1016/j.apcatb.2017.04.078
中图分类号：
O64 [物理化学（理论化学）、化学物理学];
学科分类号：
070304 ; 081704 ;
摘要：
Ru and Ni mono- and bimetallic catalysts were prepared by impregnation of two different supports (activated carbon and carbon nanotubes) and were characterized by TPR, TEM and N-2 adsorption at -196 degrees C. The prepared Ru mono- and bimetallic catalysts were highly efficient for the hydrolytic hydrogenation of cellulose to sorbitol. Regardless of the support used, when nickel was incorporated into the supported ruthenium catalyst a promoting effect was observed, with an increase in both conversion and selectivity to sorbitol, which was explained by the interaction between both metals. Yields of sorbitol around 50-60% were achieved after 5 h of reaction when using Ru-Ni/AC and Ru-Ni/CNT as catalysts. Moreover, a yield of sorbitol over 70% could be reached in just 1 h of reaction if the Ru-Ni catalysts were ball-milled together with cellulose. (C) 2017 Elsevier B.V. All rights reserved.
引用
收藏
页码：265 / 274
页数：10
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