期刊
ANGEWANDTE CHEMIE-INTERNATIONAL EDITION
卷 56, 期 14, 页码 3827-3832出版社
WILEY-V C H VERLAG GMBH
DOI: 10.1002/anie.201611379
关键词
biocatalysis; CO2 reduction; enzymes; methanol production; photosynthesis
资金
- National Research Foundation [NRF-2015R1A3A2066191, 2013M3A6A8073184]
- Samsung Research Funding Center of Samsung Electronics, Republic of Korea [SRFC-TA1403-01]
Natural photosynthesis is an effective route for the clean and sustainable conversion of CO2 into high-energy chemicals. Inspired by the natural process, a tandem photo-electrochemical (PEC) cell with an integrated enzyme-cascade (TPIEC) system was designed, which transfers photogenerated electrons to a multienzyme cascade for the biocatalyzed reduction of CO2 to methanol. A hematite photoanode and a bismuth ferrite photocathode were applied to fabricate the iron oxide based tandem PEC cell for visible-light-assisted regeneration of the nicotinamide cofactor (NADH). The cell utilized water as an electron donor and spontaneously regenerated NADH. To complete the TPIEC system, a superior three-dehydrogenase cascade system was employed in the cathodic part of the PEC cell. Under applied bias, the TPIEC system achieved a high methanol conversion output of 220 mu mh(-1), 1280 mu molg(-1)h(-1) using readily available solar energy and water.
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