期刊
JOURNAL OF CHEMICAL TECHNOLOGY AND BIOTECHNOLOGY
卷 89, 期 1, 页码 73-80出版社
WILEY
DOI: 10.1002/jctb.4098
关键词
biodiesel; XAS; Cs; MgO; solid base
类别
资金
- EPSRC [EP/F063423/2, EP/G007594/2]
- Royal Society
- STFC [4193]
- Engineering and Physical Sciences Research Council [EP/F063423/2, EP/F063423/1, EP/G007594/2, EP/G007594/3] Funding Source: researchfish
- EPSRC [EP/F063423/1, EP/G007594/3] Funding Source: UKRI
BackgroundBiodiesel is a clean-burning, renewable and biodegradable diesel fuel substitute derived from animal fats and plant oils, which may play an important role in replacing diminishing fossil fuel reserves and combating climate change. Conventional biodiesel production uses soluble base catalysts, such as Na or K alkoxides, to convert oils into fuel, and as a result requires energy intensive aqueous quench cycles to isolate the biodiesel product. ResultsCs-doping nanoparticulate MgO, prepared via a novel, supercritical sol-gel method, yields a solid base catalyst with improved activity for the transesterification of pure triacylglycerides (TAGs) and olive oil. ConclusionHere, X-ray absorption spectroscopy (XAS) is used to probe the local chemical environment of Cs atoms in order to identify the nature of the catalytically active species as Cs2Mg(CO3)(2)(H2O)(4). (c) 2013 Society of Chemical Industry
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