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Aquivion–carbon composites with tunable amphiphilicity for pickering interfacial catalysis

Zhang, Shi, Hong, Bing, Fan, Zhaoyu, Lu, Jingya, Xu, Yisheng and Pera-Titus, Marc 2018. Aquivion–carbon composites with tunable amphiphilicity for pickering interfacial catalysis. ACS Applied Materials and Interfaces 10 (31) , pp. 26795-26804. 10.1021/acsami.8b08649

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A key demand in biomass conversion is how to achieve high reactivity with immiscible reagents with the use of neither cosolvents nor additives. Pickering interfacial catalysis encompassing the design of amphiphilic catalysts behaving concomitantly as emulsifiers offers an elegant solution. In this study, we prepared a systematic series of amphiphilic Aquivion–carbon composites by the hydrothermal carbonization of guar gum with Aquivion perfluorosulfonic superacid. By tuning the Aquivion–carbon composition, materials with tunable hydrophilic-lipophilic properties could be prepared, showing high versatility for conducting biphasic reactions without stirring. In particular, an optimal formulation based on 5:1 Aquivion–carbon could be developed, showing high activity in the transesterification reaction of glyceryl trioleate with methanol at 100 °C with good reusability due to the genesis of stable Pickering emulsions.

Item Type: Article
Date Type: Publication
Status: Published
Schools: Chemistry
Cardiff Catalysis Institute (CCI)
Publisher: American Chemical Society
ISSN: 1944-8244
Date of Acceptance: 12 July 2018
Last Modified: 12 Jan 2021 15:00

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