Water-gas shift reaction catalyzed by redox enzymes on conducting graphite platelets.
The water-gas shift (WGS) reaction (CO + H(2)O <==> CO(2) + H(2)) is of major industrial significance in the production of H(2) from hydrocarbon sources. High temperatures are required, typically in excess of 200 degrees C, using d-metal catalysts on oxide supports. In our study the WG...
| Main Authors: | , , , , , , , , , |
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| Format: | Journal article |
| Language: | English |
| Published: |
2009
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| _version_ | 1826256763767226368 |
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| author | Lazarus, O Woolerton, T Parkin, A Lukey, M Reisner, E Seravalli, J Pierce, E Ragsdale, S Sargent, F Armstrong, F |
| author_facet | Lazarus, O Woolerton, T Parkin, A Lukey, M Reisner, E Seravalli, J Pierce, E Ragsdale, S Sargent, F Armstrong, F |
| author_sort | Lazarus, O |
| collection | OXFORD |
| description | The water-gas shift (WGS) reaction (CO + H(2)O <==> CO(2) + H(2)) is of major industrial significance in the production of H(2) from hydrocarbon sources. High temperatures are required, typically in excess of 200 degrees C, using d-metal catalysts on oxide supports. In our study the WGS process is separated into two half-cell electrochemical reactions (H(+) reduction and CO oxidation), catalyzed by enzymes attached to a conducting particle. The H(+) reduction reaction is catalyzed by a hydrogenase, Hyd-2, from Escherichia coli, and CO oxidation is catalyzed by a carbon monoxide dehydrogenase (CODH I) from Carboxydothermus hydrogenoformans. This results in a highly efficient heterogeneous catalyst with a turnover frequency, at 30 degrees C, of at least 2.5 s(-1) per minimum functional unit (a CODH/Hyd-2 pair) which is comparable to conventional high-temperature catalysts. |
| first_indexed | 2024-03-06T18:07:25Z |
| format | Journal article |
| id | oxford-uuid:01e6b068-730f-4dbd-85a6-ee92d0d4b6d6 |
| institution | University of Oxford |
| language | English |
| last_indexed | 2024-03-06T18:07:25Z |
| publishDate | 2009 |
| record_format | dspace |
| spelling | oxford-uuid:01e6b068-730f-4dbd-85a6-ee92d0d4b6d62022-03-26T08:37:32ZWater-gas shift reaction catalyzed by redox enzymes on conducting graphite platelets.Journal articlehttp://purl.org/coar/resource_type/c_dcae04bcuuid:01e6b068-730f-4dbd-85a6-ee92d0d4b6d6EnglishSymplectic Elements at Oxford2009Lazarus, OWoolerton, TParkin, ALukey, MReisner, ESeravalli, JPierce, ERagsdale, SSargent, FArmstrong, FThe water-gas shift (WGS) reaction (CO + H(2)O <==> CO(2) + H(2)) is of major industrial significance in the production of H(2) from hydrocarbon sources. High temperatures are required, typically in excess of 200 degrees C, using d-metal catalysts on oxide supports. In our study the WGS process is separated into two half-cell electrochemical reactions (H(+) reduction and CO oxidation), catalyzed by enzymes attached to a conducting particle. The H(+) reduction reaction is catalyzed by a hydrogenase, Hyd-2, from Escherichia coli, and CO oxidation is catalyzed by a carbon monoxide dehydrogenase (CODH I) from Carboxydothermus hydrogenoformans. This results in a highly efficient heterogeneous catalyst with a turnover frequency, at 30 degrees C, of at least 2.5 s(-1) per minimum functional unit (a CODH/Hyd-2 pair) which is comparable to conventional high-temperature catalysts. |
| spellingShingle | Lazarus, O Woolerton, T Parkin, A Lukey, M Reisner, E Seravalli, J Pierce, E Ragsdale, S Sargent, F Armstrong, F Water-gas shift reaction catalyzed by redox enzymes on conducting graphite platelets. |
| title | Water-gas shift reaction catalyzed by redox enzymes on conducting graphite platelets. |
| title_full | Water-gas shift reaction catalyzed by redox enzymes on conducting graphite platelets. |
| title_fullStr | Water-gas shift reaction catalyzed by redox enzymes on conducting graphite platelets. |
| title_full_unstemmed | Water-gas shift reaction catalyzed by redox enzymes on conducting graphite platelets. |
| title_short | Water-gas shift reaction catalyzed by redox enzymes on conducting graphite platelets. |
| title_sort | water gas shift reaction catalyzed by redox enzymes on conducting graphite platelets |
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