Huang X, Li L, Li G. Synthesis of CeO
2 assemblies through interaction with short-chain dicarboxylic acids under facile hydrothermal conditions.
RSC Adv 2019;
9:28581-28587. [PMID:
35529619 PMCID:
PMC9071018 DOI:
10.1039/c9ra04245h]
[Citation(s) in RCA: 3] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/05/2019] [Accepted: 09/01/2019] [Indexed: 11/21/2022] Open
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.
CeO2 assemblies with various morphologies are hydrothermally synthesized using short-chain dicarboxylic acids as the only added agent.![]()
Collapse