Citation: Jiahua Zhao, Yuan Shu, Pengfei Zhang. Solid-state CTAB-assisted synthesis of mesoporous Fe₃O₄ and Au@Fe₃O₄ by mechanochemistry[J]. Chinese Journal of Catalysis, ;2019, 40(7): 1078-1084. doi: S1872-2067(19)63288-2 shu

Solid-state CTAB-assisted synthesis of mesoporous Fe₃O₄ and Au@Fe₃O₄ by mechanochemistry

School of Chemistry and Chemical Engineering, Shanghai Jiao Tong University, Shanghai 200240, China

Received Date: 29 November 2018
Revised Date: 24 December 2018

Fund Project: This work was supported by the National Natural Science Foundation of China (21776174), the Pujiang Talent Plan in Shanghai (17PJ1403500), and the Thousand Talents Plan.

Mesoporous iron oxides have shown excellent performance in many research areas such as catalysts, biosensors, enzyme immobilization, heavy metal adsorption, and drug delivery. The state-of-the-art synthesis methods are mostly wet chemistry processes. This paper reports a solvent-free approach for the rapid synthesis of mesoporous Fe₃O₄ (specific surface area up to 170 m²/g) and Au@Fe₃O₄ (highly dispersed Au nanoparticles, average particle size:~4 nm). With different amounts of added template agent, cetyltrimethylammonium bromide (CTAB), the pore structure could easily be adjusted. More importantly, the mesoporous Fe₃O₄ exhibited good catalytic activity in carbon monoxide (CO) oxidation, outperforming commercially purchased Fe₃O₄ with 100% CO conversion at around 274℃ vs. 490℃ for the commercial product.
- Mechanochemistry,
- Mesoporous material,
- Mesoporous catalyst,
- Carbon monoxide oxidation,
- Iron oxide
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Solid-state CTAB-assisted synthesis of mesoporous Fe₃O₄ and Au@Fe₃O₄ by mechanochemistry