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As fuel additives, ethyl levulinate (EL) can be used up to 5 wt% directly in the regular diesel engines, which can overcome the limited stock of fossil fuels and reduce the environment pollutions to some extent. In this work, the three-dimensional porous hybrids consisting of SiO2 and graphene aerogel, which are denoted as SiO2@GA, are facilely assembled and used as supports for H3PW12O40 (HPW)-based...
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