Ru-nanoparticle deposition on naturally available clay and rice husk biomass materials-Benzene hydrogenation catalysis and synthetic strategies for green catalyst development

被引：10

作者：

Bin Shawkataly, Omar ^{[1
]}

Jothiramalingam, R. ^{[1
]}

Adam, F. ^{[2
]}

Radhika, T. ^{[2
]}

Tsao, T. M. ^{[3
]}

Wang, M. K. ^{[3
]}

机构：

[1] Univ Sains Malaysia, Sch Distance Educ, P Penang 11800, Malaysia

[2] Univ Sains Malaysia, Sch Chem Sci, P Penang 11800, Malaysia

[3] Natl Taiwan Univ, Dept Agr Chem, Taipei 10764, Taiwan

来源：

CATALYSIS SCIENCE & TECHNOLOGY | 2012年 / 2卷 / 03期

关键词：

SELECTIVE HYDROGENATION; HETEROGENEOUS CATALYST; CARBONYL CLUSTER; SILICA; SURFACE; ACID; IRON; INDIUM; ASH;

D O I：

10.1039/c1cy00269d

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：

We demonstrate the rapid synthesis of ruthenium nanoparticle supported on naturally available isolated soil clay and ceria-modified rice husk silica biomass. Ruthenium nanoparticle deposition on nanoclay (clay particles of <100 nm) and on rice husk silica was performed via a high pressure hydrogenation process. A ruthenium organometallic compound was used as a precursor for ruthenium nanoparticle formation. The physico-chemical characteristics of the synthesized materials were analyzed by XRD, FT-IR, SEM-EDX and TEM analysis. The successful incorporation of ruthenium nanoparticle on nanoclay (Ru/Nanoclay-A) and on ceria-modified rice husk silica (Ru/Ce-RHS-B) was confirmed by XRD and FT-IR analysis. Ruthenium deposition on ceira-modified rice husk silica catalyst (Ru-Ce/RHS-C) has also been synthesized and characterized for a comparison study. The spherical shaped particles were observed between 60-80 nm for Ru/Nanoclay-A. However Ru/Ce-RHS-B and Ru-Ce/RHS-C material derived from biomass showed an aggregated morphology. Benzene hydrogenation under high pressure conditions has been studied in presence of the aforementioned three types of catalysts, Ru/Nanoclay-A, Ru/Ce-RHS-B and Ru-Ce/RHS-C. The Ru/Ce-RHS-B catalyst showed maximum conversion of 85% with selectivity of 72% towards cyclohexene formation, compared with other catalysts.

引用

页码：538 / 546

页数：9

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