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Synthesis of CeO₂ assemblies through interaction with short-chain dicarboxylic acids under facile hydrothermal conditions.

ABSTRACT: CeO₂ assemblies with various morphologies were synthesized via a facile hydrothermal method using short-chain dicarboxylic acids as the only added agent. It is demonstrated that the morphology of CeO₂ assemblies depends on the chain-length of the dicarboxylic acids. The reaction with propanedioic acid (PA) results in durian-like ceria assemblies. Comparatively, ethanedioic acid (EA) tends to precipitate with Ce³⁺ at the beginning, and then guides the formation of lamellar octahedral assemblies. The catalytic performance towards CO oxidation of the as-synthesized CeO₂ with different morphologies was investigated. Compared with lamellar octahedral assemblies, durian-like CeO₂ assemblies showed better catalytic performance, giving complete CO conversion at 350 °C, due to its properties of unique oxygen vacancies, loosely packed pore structure and larger specific surface area.

SUBMITTER: Huang X

PROVIDER: S-EPMC9071018 | biostudies-literature | 2019 Sep

REPOSITORIES: biostudies-literature

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Synthesis of CeO2 assemblies through interaction with short-chain dicarboxylic acids under facile hydrothermal conditions.

Huang Xinsong X Li Liping L Li Guangshe G

RSC advances 20190910 49

CeO2 assemblies with various morphologies were synthesized via a facile hydrothermal method using short-chain dicarboxylic acids as the only added agent. It is demonstrated that the morphology of CeO2 assemblies depends on the chain-length of the dicarboxylic acids. The reaction with propanedioic acid (PA) results in durian-like ceria assemblies. Comparatively, ethanedioic acid (EA) tends to precipitate with Ce3+ at the beginning, and then guides the forma ...[more]

PMID: 35529619

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