Solar water splitting in a molecular photoelectrochemical cell.

Proceedings of the National Academy of Sciences of the United States of America (2013-11-28)
Leila Alibabaei, M Kyle Brennaman, Michael R Norris, Berç Kalanyan, Wenjing Song, Mark D Losego, Javier J Concepcion, Robert A Binstead, Gregory N Parsons, Thomas J Meyer
摘要

Artificial photosynthesis and the production of solar fuels could be a key element in a future renewable energy economy providing a solution to the energy storage problem in solar energy conversion. We describe a hybrid strategy for solar water splitting based on a dye sensitized photoelectrosynthesis cell. It uses a derivatized, core-shell nanostructured photoanode with the core a high surface area conductive metal oxide film--indium tin oxide or antimony tin oxide--coated with a thin outer shell of TiO2 formed by atomic layer deposition. A "chromophore-catalyst assembly" 1, [(PO3H2)2bpy)2Ru(4-Mebpy-4-bimpy)Rub(tpy)(OH2)](4+), which combines both light absorber and water oxidation catalyst in a single molecule, was attached to the TiO2 shell. Visible photolysis of the resulting core-shell assembly structure with a Pt cathode resulted in water splitting into hydrogen and oxygen with an absorbed photon conversion efficiency of 4.4% at peak photocurrent.

材料
货号
品牌
产品描述

Sigma-Aldrich
二氧化钛(IV), nanopowder, 21 nm primary particle size (TEM), ≥99.5% trace metals basis
Sigma-Aldrich
氧化钛 (IV),锐钛矿, nanopowder, <25 nm particle size, 99.7% trace metals basis
Sigma-Aldrich
二氧化钛(IV), ReagentPlus®, ≥99%
Sigma-Aldrich
氧化钛 (IV),锐钛矿, powder, 99.8% trace metals basis
Sigma-Aldrich
钛 (IV) 氧化物,金红石型, powder, <5 μm, ≥99.9% trace metals basis
Sigma-Aldrich
氧化钛 (IV),锐钛矿, powder, −325 mesh, ≥99% trace metals basis
Sigma-Aldrich
氧化钛(IV),金红石和锐钛矿混合物, nanopowder, <100 nm particle size (BET), 99.5% trace metals basis
Sigma-Aldrich
钛 (IV) 氧化物,金红石型, nanopowder, <100 nm particle size, 99.5% trace metals basis
Sigma-Aldrich
二氧化钛(IV), puriss., meets analytical specification of Ph. Eur., BP, USP, 99-100.5%
Sigma-Aldrich
钛, foil, thickness 0.127 mm, 99.7% trace metals basis
Sigma-Aldrich
钛, powder, <45 μm avg. part. size, 99.98% trace metals basis
Sigma-Aldrich
钛, foil, thickness 0.25 mm, 99.7% trace metals basis
Sigma-Aldrich
钛, powder, −100 mesh, 99.7% trace metals basis
Sigma-Aldrich
氧化钛(IV),金红石和锐钛矿混合物, nanoparticles, <150 nm particle size (volume distribution, DLS), dispersion, 40 wt. % in H2O, 99.5% trace metals basis
Sigma-Aldrich
钛 (IV) 氧化物,金红石型, ≥99.98% trace metals basis
Sigma-Aldrich
钛 (IV) 氧化物,金红石型, 99.995% trace metals basis
Sigma-Aldrich
钛, foil, thickness 0.025 mm, 99.98% trace metals basis
Sigma-Aldrich
钛, sponge, 3-19 mm, 99.5% trace metals basis
Sigma-Aldrich
钛, wire, diam. 0.25 mm, 99.7% trace metals basis
Sigma-Aldrich
钛, nanoparticles, dispersion, <100 nm particle size, in mineral oil, 98.5% trace metals basis
Sigma-Aldrich
二氧化钛(IV), contains 1% Mn as dopant, nanopowder, <100 nm particle size (BET), ≥97%
Sigma-Aldrich
钛, sputtering target, diam. × thickness 2.00 in. × 0.25 in., 99.995% trace metals basis
Sigma-Aldrich
钛, foil, thickness 0.5 mm, 99.99% trace metals basis
Sigma-Aldrich
氧化钛(IV),金红石和锐钛矿混合物, nanoparticle, <250 nm particle size (DLS), paste, 53-57 wt. % in diethylene glycol monobutyl ether/ethylene glycol, 99.9% trace metals basis
Sigma-Aldrich
钛, wire, diam. 0.81 mm, 99.7% trace metals basis
Sigma-Aldrich
钛, foil, thickness 0.25 mm, 99.99% trace metals basis
Sigma-Aldrich
钛, foil, thickness 2.0 mm, 99.7% trace metals basis
Sigma-Aldrich
钛, wire, diam. 1.0 mm, 99.99% trace metals basis
Sigma-Aldrich
钛, evaporation slug, diam. × L 6.3 mm × 6.3 mm, ≥99.99% trace metals basis
Sigma-Aldrich
钛, foil, thickness 0.127 mm, ≥99.99% trace metals basis