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New Paper ‒ A Silane-Derivatized Ru(II) Catalyst for Water Oxidation

October 16, 2018

The silane-derivatized catalyst, Ru(bda)(L)2 (bda = 2,2′-bipyridine-6,6′-dicarboxylate, L = 4-(6-(triethoxysilyl)hexyl)pyridine), is stabilized on metal oxide electrode surfaces over an extended pH range. It maintains its reactivity on the electrode surface toward electrochemical oxidation over a wide range of conditions. On … Read more

Humboldt Fellowship: Congratulations Jenny Schneider

October 11, 2018

Congratulations to AMPED EFRC postdoctoral fellow Jenny Schneider, who has been awarded a prestigious Feodor Lynen Research Fellowship from the Humboldt Foundation. The Humboldt Foundation sponsors highly qualified German researchers of all disciplines who wish to conduct research abroad. Jenny Schneider … Read more

Larraín Gandarillas Medal: Congratulations Tom Meyer

October 5, 2018

Congratulations to former UNC EFRC Director Tom Meyer, who has been awarded the Monsignor Larraín Gandarillas Medal by Pontifica Universidad Católica de Chile. Professor Meyer was presented with the medal during his recent visit to Chile, in recognition of his … Read more

New Paper ‒ A Charge‐Separated State that Lives for Almost a Second

September 21, 2018

Transparent conductive oxides (TCOs) are widely-used commercially available materials for opto‐electronic applications, yet have received very little attention for dye‐sensitization applications. This paper reports that mesoporous thin films of conductive indium‐doped tin oxide (ITO) nanocrystallites support long‐lived charge separation with … Read more

New Review ‒ Carbon Dioxide Electroreduction

September 7, 2018

The development of molecular organometallic electrocatalysts for the reduction of carbon dioxide (CO2) is reviewed. Organometallic complexes are a promising subset of the many catalysts capable of electrochemical reduction of carbon dioxide to organic small molecules such as carbon monoxide (CO), formate (HCO2−), and oxalate (C2O42−). The carbon-based supporting ligands of organometallic complexes … Read more

New Paper ‒ Stabilized Photoanodes for Water Oxidation

August 6, 2018

Stabilized photoanodes for light-driven water oxidation were prepared on nanoparticle core/shell electrodes with surface-stabilized donor–acceptor chromophores, a water oxidation catalyst, and an electron-transfer mediator. For the electrode, fluorine-doped tin oxide FTO|SnO2/TiO2|-Org1-|1.1 nm Al2O3|-RuP2+-WOC (water oxidation catalyst) with Org1 (1-cyano-2-(4-(diphenylamino)phenyl)vinyl)phosphonic acid), … Read more

New Paper ‒ Photocatalytic Water Oxidation by a π-Conjugated Chromophore-Catalyst Assembly

August 6, 2018

The organic chromophore, 2,2′-(benzo[c][1,2,5]thiadiazole-4,7-diyl)bis(thiophene-3-carboxylic acid), was prepared and investigated along with metal complex [Ru(bda)(pyP)2] (bda = 2,2’-bipyridine-6,6’-dicarboxylate; pyP = 3-(pyridine-4-yloxy)propyl)phosphonic acid), for light-driven water splitting in dye-sensitized photoelectrochemical cells. The resulting co-loaded organic chromophore plus catalyst surface assembly was evaluated … Read more

AMPED EFRC ‒ Congratulations

June 29, 2018

The Alliance for Molecular PhotoElectrode Design for Solar Fuels (AMPED) has been awarded an additional two years of support from the U.S. Department of Energy Office of Science, Office of Basic Energy Sciences.   The focus for 2018-2020 will be on … Read more

New Paper ‒ Catalytic Interconversion

June 20, 2018

Surface catalytic interconversion of hydroquinone and 1,4-benzoquinone occur at a fluorine-doped tin oxide electrode (FTO) modified by the addition of the surface-bound couple, [Os(bpy)2((4,4’-PO3H2)2bpy)]3+/2+. Significant rate enhancements are observed with added solution buffers – phosphate, acetate, and citrate – and … Read more

New Paper ‒ Interfacial Dynamics

June 8, 2018

Interfacial dynamics following photoexcitation of a water oxidation assembly on nanocrystalline TiO2 electrodes have been investigated. Transient absorption measurements reveal that electron injection occurs with high efficiency but that hole transfer to the catalyst, which occurs on the electrochemical time … Read more