Abstract
Energy conversion cycles are aimed at driving unfavorable, small-molecule activation reactions with a photon harnessed by a transition metal complex. A challenge that has occupied researchers for several decades is to create molecular photocatalysts to promote the production of hydrogen from homogeneous solution. We now report the use of a two-electron mixed-valence dirhodium compound to photocatalyze the reduction of hydrohalic acid to hydrogen. In this cycle, photons break two Rh II –X bonds of a LRh 0 –Rh II X 2 core in the presence of a halogen trap to regenerate the active LRh 0 –Rh 0 catalyst, which reacts with hydrohalic acid to produce hydrogen.
Keywords
Valence (chemistry)PhotocatalysisHalogenHydrogenCatalysisPhotochemistryChemistryHydrogen productionHomogeneousCatalytic cycleElectronValence electronMoleculeChemical physicsOrganic chemistryPhysics
Affiliated Institutions
Related Publications
PHOTOCATALYTIC HYDROGEN PRODUCTION FROM WATER BY THE DECOMPOSITION OF POLY-VINYLCHLORIDE, PROTEIN, ALGAE, DEAD INSECTS, AND EXCREMENT
Abstract Xe-lamp irradiation of a platinized TiO2 photocatalyst in the presence of water and chlorine or nitrogen containing organic molecules, synthetic or natural, leads to th...
Photocatalysis and solar hydrogen production
Abstract Photocatalytic water splitting is a challenging reaction because it is an ultimate solution to energy and environmental issues. Recently, many new powdered photocatalys...
Overall water splitting using (oxy)nitride photocatalysts
Abstract Oxynitride photocatalysts with d 10 electronic configuration are presented as effective non-oxide catalysts for overall water splitting. Germanium nitride (β-Ge 3 N 4 )...
Heterogeneous photocatalyst materials for water splitting
This critical review shows the basis of photocatalytic water splitting and experimental points, and surveys heterogeneous photocatalyst materials for water splitting into H2 and...
Simulations of Nanocylinders Self-Assembled from Cyclic β-Tripeptides
This paper examines the self-assembly of cyclic β-tripeptides using density functional theory. On the basis of literature precedents, these cyclic peptides were expected to self...
Publication Info
- Year
- 2001
- Type
- article
- Volume
- 293
- Issue
- 5535
- Pages
- 1639-1641
- Citations
- 326
- Access
- Closed
External Links
Social Impact
Altmetric
PlumX Metrics
Social media, news, blog, policy document mentions
Citation Metrics
326
OpenAlex
Cite This
Alan F. Heyduk,
Daniel G. Nocera
(2001).
Hydrogen Produced from Hydrohalic Acid Solutions by a Two-Electron Mixed-Valence Photocatalyst.
Science
, 293
(5535)
, 1639-1641.
https://doi.org/10.1126/science.1062965
Identifiers
- DOI
- 10.1126/science.1062965