title: Synthesis of Mesoporous α-Fe2O3Nanoparticles by Non-ionic Soft Template and Their Applications to Heavy Oil Upgrading.
abstract: This paper reports the synthetic route of 3-D network shape α-Fe2O3from aqueous solutions of iron precursor using a non-ionic polymeric soft-template, Pluronic P123. During the synthesis of α-Fe2O3, particle sizes, crystal phases and morphologies were significantly influenced by pH, concentrations of precursor and template. The unique shape of worm-like hematite was obtained only when a starting solution was prepared by a weakly basic pH condition and a very specific composition of constituents. The synthesized nanocrystal at this condition had a narrow pore size distribution and high surface area compared to the bulk α-Fe2O3or the one synthesized from lower pH conditions. The hydrocracking performance was tested over the synthesized iron oxide catalysts with different morphologies. The worm-like shape of iron oxide showed a superior performance, including overall yield of liquid fuel product and coke formation, over the hydrocracking of heavy petroleum oil.
authors.affiliation: Research Center for Convergent Chemical Process, Korea Research Institute of Chemical Technology, Daejeon 34114, Republic of Korea.|Kyoungbook National University, Daegu 41566, Republic of Korea.
authors.forename: Chulwoo
authors.initials: C
authors.lastname: Park
authors.affiliation: Research Center for Convergent Chemical Process, Korea Research Institute of Chemical Technology, Daejeon 34114, Republic of Korea.
authors.forename: Jinhwan
authors.initials: J
authors.lastname: Jung
authors.affiliation: Research Center for Convergent Chemical Process, Korea Research Institute of Chemical Technology, Daejeon 34114, Republic of Korea.|Department of Green Chemistry &Environmental Biotechnology, University of Science and Technology (UST), Daejeon 34113, Republic of Korea.
authors.forename: Chul Wee
authors.initials: CW
authors.lastname: Lee
authors.affiliation: Research Center for Convergent Chemical Process, Korea Research Institute of Chemical Technology, Daejeon 34114, Republic of Korea.|Department of Green Chemistry &Environmental Biotechnology, University of Science and Technology (UST), Daejeon 34113, Republic of Korea.
authors.forename: Joungmo
authors.initials: J
authors.lastname: Cho