Water-gas shift reaction catalyzed by redox enzymes on conducting graphite platelets

Oliver Lazarus; Thomas W Woolerton; Alison Parkin; Michael J Lukey; Erwin Reisner; Javier Seravalli; Elizabeth Pierce; Stephen W Ragsdale; Frank Sargent; Fraser A Armstrong

doi:10.1021/ja905797w

Water-gas shift reaction catalyzed by redox enzymes on conducting graphite platelets

Oliver Lazarus, Thomas W Woolerton, Alison Parkin, Michael J Lukey, Erwin Reisner, Javier Seravalli, Elizabeth Pierce, Stephen W Ragsdale, Frank Sargent, Fraser A Armstrong

Chemistry

Research output: Contribution to journal › Article › peer-review

Abstract

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.

Original language	English
Pages (from-to)	14154-5
Number of pages	2
Journal	Journal of the American Chemical Society
Volume	131
Issue number	40
DOIs	https://doi.org/10.1021/ja905797w
Publication status	Published - 14 Oct 2009

Access to Document

10.1021/ja905797w

Cite this

@article{4dec6413bdd9400da10c8171352c50ca,

title = "Water-gas shift reaction catalyzed by redox enzymes on conducting graphite platelets",

abstract = "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.",

author = "Oliver Lazarus and Woolerton, {Thomas W} and Alison Parkin and Lukey, {Michael J} and Erwin Reisner and Javier Seravalli and Elizabeth Pierce and Ragsdale, {Stephen W} and Frank Sargent and Armstrong, {Fraser A}",

year = "2009",

month = oct,

day = "14",

doi = "10.1021/ja905797w",

language = "English",

volume = "131",

pages = "14154--5",

journal = "Journal of the American Chemical Society",

issn = "1520-5126",

publisher = "American Chemical Society",

number = "40",

}

TY - JOUR

T1 - Water-gas shift reaction catalyzed by redox enzymes on conducting graphite platelets

AU - Lazarus, Oliver

AU - Woolerton, Thomas W

AU - Parkin, Alison

AU - Lukey, Michael J

AU - Reisner, Erwin

AU - Seravalli, Javier

AU - Pierce, Elizabeth

AU - Ragsdale, Stephen W

AU - Sargent, Frank

AU - Armstrong, Fraser A

PY - 2009/10/14

Y1 - 2009/10/14

N2 - 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.

AB - 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.

UR - http://www.scopus.com/inward/record.url?scp=70349919653&partnerID=8YFLogxK

U2 - 10.1021/ja905797w

DO - 10.1021/ja905797w

M3 - Article

C2 - 19807170

SN - 1520-5126

VL - 131

SP - 14154

EP - 14155

JO - Journal of the American Chemical Society

JF - Journal of the American Chemical Society

IS - 40

ER -

Water-gas shift reaction catalyzed by redox enzymes on conducting graphite platelets

Abstract

Access to Document

Other files and links

Cite this