Kinetics and mechanism of light-driven oxygen evolution at thin film α-Fe2O3 electrodes
Experiments using modulated illumination reveal a kinetic bottleneck in light-driven water splitting on hematite electrodes.
Drastic difference in the photo-driven hydrogenation reactions of ruthenium complexes containing
NAD model ligands
Successful control of photo-driven NAD+/NADH type hydrogenation reactions in ruthenium complexes has been accomplished by using a new NAD+ model ligand.
A bioinspired self assembled dimeric
porphyrin pocket that binds electron accepting ligands
A binding pocket consisting of two zinc porphyrins self assembled by Watson–Crick base pairing is presented. The porphyrin binding pocket is located in the confined environment of a lipid membrane whereas the DNA is located in the water phase. Bidentate electron accepting ligands are shown to coordinate in-between the two porphyrins.
Electron transfer through α- peptides attached to vertically aligned carbon nanotube arrays: a mechanistic transition
α-Aminoisobutyric acid oligomers undergo a transition from a superexchange to a hopping mechanism on changing from disordered to helical conformations.
Visible light driven hydrogen production from a photo-active cathode based on a molecular
catalyst and organic dye-sensitized p-type nanostructured NiO
For the first time, a photocathode electrode immobilized with a molecular catalyst and an organic photosensitizer has been demonstrated for hydrogen generation in pH 7 buffer solution.
Spectroscopic characterization of the key
catalytic intermediate Ni–C in the O2-tolerant [ NiFe] hydrogenase I from Aquifex aeolicus: evidence of a weakly bound hydride
Ni–C in the O2-tolerant [NiFe] hydrogenase from A. aeolicus is shown by pulse EPR to carry a photo-labile hydride ligand, which is weaker bound compared to O2-sensitive hydrogenases.
LaTiO2N/In2O3 photoanodes with improved performance for solar
LaTiO2N photoanodes demonstrating the best photocurrents ever reported for this material were prepared and further improved through the deposition of an In2O3 overlayer.
Supramolecular light harvesting antennas to enhance absorption cross-section in
dye-sensitized solar cells
Antenna tethered to the sensitizer outperform unbound systems.
Quantum confinement controlled photocatalytic
water splitting by suspended CdSe nanocrystals
Overall reaction equation and energy diagram of the studied CdSe QD system.
Tunable, light-assisted co-generation of CO and H2 from CO2 and
H2O by Re(bipy-tbu)(CO)3Cl and p-Si in non-aqueous medium
The tunable co-generation of CO and H2 from CO2 and H2O by coupled homogeneous/heterogeneous catalysis is described.
Kinetics and DFT studies on
water oxidation by Ce4+ catalyzed by [Ru(terpy)(bpy)(OH2)]2+
The RuVO species and other intermediates in O2 evolution from water catalyzed by [Ru(terpy)(bpy)(OH2)]2+ were spectrophotometrically characterized, and the spectral components observed were identified based on the TD-DFT calculations.
A novel BF2-chelated azadipyrromethene–fullerene dyad: synthesis, electrochemistry and photodynamics
The first example of a BF2 chelated azadipyrromethene–fullerene dyad and the photoinduced electron transfer originating in this dyad are reported.
Visible light-driven CO2
reduction by enzyme coupled CdS nanocrystals
Carbon monoxide dehydrogenase (CODH) co-attached with CdS nanocrystals (quantum dots or nanorods) exhibits fast CO2 reduction under visible light.
Theoretical studies of the mechanism of catalytic hydrogen production by a cobaloxime
[CoII(dmgBF2)2]0 (dmgBF2 = difluoro-boryldimethylglyoximate) catalyzes H2 production in acetonitrile solution through a mechanism involving a CoIIH intermediate.
cytochrome c and azurin immobilized in nanoporous antimony-doped tin oxide
We demonstrate that cytochrome c and azurin can be functionally adsorbed to a nanoporous antimony-doped tin oxide thin film and spectroelectrochemically probed.
Selective CO2 conversion to formate in
water using a CZTS photocathode modified with a ruthenium complex polymer
Highly selective photoelectrochemical CO2 reduction (>80% selectivity) in water was successfully achieved by combining a sulfide semiconductor Cu2ZnSnS4 (CZTS) with a metal-complex electrocatalyst.
reduction of CO2 to CO by polypyridyl ruthenium complexes
The complexes [Ru(tpy)(NN)(solvent)]2+ (tpy = 2,2′:6′,2′′-terpyridine, NN = 2,2′-bipyridine or 3-methyl-1-pyridylbenzimidazol-2-ylidene) are electrocatalysts for CO2 reduction in CH3CN with CO as the product.
oxido structure of a water-oxidizing catalyst film
X-ray spectroscopy on electrodeposited nickel oxides reveals common structural motifs in water oxidation by oxides of cobalt, manganese, and nickel.
Microwave-assisted synthesis of CdS–reduced graphene
oxide composites for photocatalytic reduction of Cr(VI)
CdS–reduced graphene oxide is synthesized using a microwave-assisted reaction for visible light photocatalytic reduction of Cr(VI) with a high removal rate.
iridium acetate trimer as a water-oxidation catalyst
Wilkinson’s iridium acetate trimer is a competent precatalyst for water oxidation with NaIO4 but rapidly decomposes using Ce(IV) as a primary oxidant.
Self-assembled layered hybrid [Ru(bpy)3]2+/manganese(III,IV) oxide: a new and efficient strategy for water oxidation
For the first time a self-assembled layered hybrid [Ru(bpy)3]2+/manganese(III,IV) as a water oxidizing system is reported.
Pentacoordinate iron complexes as functional models of the distal iron in [FeFe] hydrogenases
Mononuclear pentacoordinate Fe(II) complexes with a free coordination site were prepared as mimics of the distal Fe (Fed) in the active site of [FeFe] hydrogenases. The complexes catalyze the electrochemical reduction of protons at mild overpotential.
fullerene encapsulation on structure and photophysical properties of porphyrin-linked single-walled carbon nanotubes
Photophysical properties of fullerene-encapsulating single-walled carbon nanotubes linked with porphyrins by a short rigid phenylene spacer have been investigated.
Microsecond charge recombination in a linear triarylamine–Ru(bpy)32+–anthraquinone triad
Two subsequent photoinduced electron transfers in a linear triad incorporating a Ru(bpy)32+ photosensitizer lead to a long-lived charge-separated state.
Oxidative coupling of
porphyrins using copper(II) salts
Porphyrins with a hydrogen atom at a meso-position can be oxidatively coupled under mild conditions using inexpensive Cu2+ salts.
Self-host heteroleptic green iridium dendrimers: achieving efficient non-doped device performance based on a simple molecular structure
Simple is the best: An easily prepared, self-host heteroleptic Ir dendrimer 4D-G1 with a more simple molecular structure shows compatible device performance to G3.
Balancing binding strength and charge transfer lifetime in supramolecular associates of fullerenes
Macrocyclic hosts show affinities towards C60 and C70 up to the micromolar and enhanced charge separated state lifetimes in the range of 500 ps.
N-heterocyclic carbene– pyridine complexes that exhibit selectivity for electrocatalytic reduction of carbon dioxide over water
Nickel(II) complexes supported by a series of carbene–pyridine ancillary ligands are active molecular electrocatalysts for the reduction of carbon dioxide to carbon monoxide and exhibit high selectivity for the reduction of carbon dioxide over water.
About this collection
This web-based themed issue showcases high quality articles in the field of artificial photosynthesis. The peer-reviewed contributions are from prominent scientists working on all aspects of: new materials and photocatalysts for solar photochemistry; hydrogen production and water splitting; nitrogen and carbon dioxide functionalisation; light harvesting and energy transfer; electron transfer (tunnelling vs hopping); coupled proton/electron transfer; long-range electron transport; multi-electron redox processes; bioinspired molecular systems; and nanostructures for solar energy usage.
The issue is guest-edited by Dr Andrew Benniston (Newcastle University, UK).
Articles in this web themed issue will be added to the list below as soon as possible, after they are published. Please return to this page frequently to watch this collection grow.