| Autor: |
Nichols, EM, Gallagher, JJ, Liu, C, Su, Y, Resasco, J, Yu, Y, Sun, Y, Yang, P, Chang, MCY, Chang, CJ |
| Jazyk: |
angličtina |
| Rok vydání: |
2015 |
| Zdroj: |
Nichols, EM; Gallagher, JJ; Liu, C; Su, Y; Resasco, J; Yu, Y; et al.(2015). Hybrid bioinorganic approach to solar-tochemical conversion. Proceedings of the National Academy of Sciences of the United States of America, 112(37), 11461-11466. doi: 10.1073/pnas.1508075112. UC Berkeley: Retrieved from: http://www.escholarship.org/uc/item/8zr8s1th |
| DOI: |
10.1073/pnas.1508075112. |
| Popis: |
Natural photosynthesis harnesses solar energy to convert CO2 and water to value-added chemical products for sustaining life. We present a hybrid bioinorganic approach to solar-to-chemical conversion in which sustainable electrical and/or solar input drives production of hydrogen from water splitting using biocompatible inorganic catalysts. The hydrogen is then used by living cells as a source of reducing equivalents for conversion of CO2 to the value-added chemical product methane. Using platinum or an earth-abundant substitute, α-NiS, as biocompatible hydrogen evolution reaction (HER) electrocatalysts and Methanosarcina barkeri as a biocatalyst for CO2 fixation, we demonstrate robust and efficient electrochemical CO2to CH4 conversion at up to 86% overall Faradaic efficiency for ≥7 d. Introduction of indium phosphide photocathodes and titanium dioxide photoanodes affords a fully solar-driven system for methane generation from water and CO2, establishing that compatible inorganic and biological components can synergistically couple light-harvesting and catalytic functions for solar-to-chemical conversion. |
| Databáze: |
OpenAIRE |
| Externí odkaz: |
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