Morphology‐Controllable Preparation of CeO 2  Materials for CO 2  Adsorption | Zendy

Zhao Bosheng | Zendy; Sha Feng | Zendy; Ma Liang | Zendy; Du Hong | Zendy; Qiao Xianshu | Zendy; Zhang Jianbin | Zendy

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Morphology‐Controllable Preparation of CeO 2 Materials for CO 2 Adsorption

Author(s) -

Zhao Bosheng,

Sha Feng,

Ma Liang,

Du Hong,

Qiao Xianshu,

Zhang Jianbin

Publication year - 2018

Publication title -

chemistryselect

Language(s) - English

Resource type - Journals

SCImago Journal Rank - 0.437

H-Index - 34

ISSN - 2365-6549

DOI - 10.1002/slct.201702535

Subject(s) - isoelectric point , adsorption , hydrothermal circulation , thermal decomposition , morphology (biology) , raw material , annealing (glass) , materials science , crystallography , chemical engineering , chemistry , inorganic chemistry , organic chemistry , metallurgy , biology , engineering , genetics , enzyme

Three morphology controllable CeO 2 crystals were successfully synthesized via the thermal decomposition of CeCO 3 OH precursors, which was newly prepared on the basis of a simple and template‐free hydrothermal reaction between CeCl 3 solution and a CO 2 ‐storage material (CO 2 SM). In the formation processes of three CeCO 3 OH precursors, the CO 2 SM could be newly used as raw material and structural director. Meanwhile, the results presented the wider pH values (5.24‐8.35) for isoelectric point of CeCO 3 OH precursors. After the CeCO 3 OH precursors were isolated, the filtrate could be recycled to absorb CO 2 again and prepare CeCO 3 OH precursors with two special polymorphs. Three as‐prepared CeO 2 crystals by annealing three CeCO 3 OH precursors at 500 °C for 4 h showed the maximum adsorption amounts of 23.5, 18.7 and 20.5 mg/g for 8% CO 2 /N 2 mixture. As a result, this work provided the wider pH values for isoelectric point of CeCO 3 OH precursors and a simple method for the preparation of CeO 2 crystals with a short time and CO 2 adsorption properties.

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