期刊
ACS CATALYSIS
卷 7, 期 12, 页码 8413-8419出版社
AMER CHEMICAL SOC
DOI: 10.1021/acscatal.7b02425
关键词
formic acid; dehydrogenation; iridium; CMP; heterogeneous
资金
- European Regional Development Fund (ERDF)
- state of North-Rhine Westphalia, Germany
- Federal Ministry of Education and Research (BMBF)
- MANGAN research cluster BMBF-PTJ FKz [03SF0508]
Formic acid is considered a promising energy storage medium, and its selective dehydrogenation enables the generation of high-purity H-2. Herein we report a bipyridine-based conjugated microporous polymer (CMP) loaded with [Cp*IrCl2](2) for the base-free aqueous dehydrogenation of formic acid to H-2/CO2. This catalyst exhibits high activity and selectivity at temperatures over 130 degrees C and with formic acid concentrations as high as 10 M. Recycling tests demonstrate a low Ir leaching and a gradual increase in the activity over six runs and a low CO content in the gas phase of about 138 ppm. TOFs of up to 123894 h(-1) were obtained using 0.1 wt % Ir loading.
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