2013
DOI: 10.1021/nn400744d
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Enhanced Hematite Water Electrolysis Using a 3D Antimony-Doped Tin Oxide Electrode

Abstract: We present herein an example of nanocrystalline antimony-doped tin oxide (nc-ATO) disordered macroporous "inverse opal" 3D electrodes as efficient charge-collecting support structures for the electrolysis of water using a hematite surface catalyst. The 3D macroporous structures were created via templating of polystyrene spheres, followed by infiltration of the desired precursor solution and annealing at high temperature. Using cyclic voltammetry and electrochemical impedance spectroscopy, it was determined tha… Show more

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Cited by 74 publications
(62 citation statements)
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“…[22][23][24][25] We therefore used spin coating to create thin films of iron oxide in this study (see the Experimental Section). Precursor solutions were spin coated onto fluorinedoped tin oxide (FTO) substrates and annealed at high temperatures.…”
Section: Resultsmentioning
confidence: 99%
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“…[22][23][24][25] We therefore used spin coating to create thin films of iron oxide in this study (see the Experimental Section). Precursor solutions were spin coated onto fluorinedoped tin oxide (FTO) substrates and annealed at high temperatures.…”
Section: Resultsmentioning
confidence: 99%
“…The precursor a-Fe 2 O 3 solution was prepared according to previous reports. [22,25] Briefly, Fe(NO 3 ) 3 ·9 H 2 O (1.35 g) was added to a mixture of ethanol (12 mL) and water (3 mL) in a 20 mL scintillation vial, and the mixture was stirred overnight at room temperature. Prior to spin coating, the solution was filtered through a 0.45 mm syringe filter and diluted with a 4:1 solution of EtOH/H 2 O until the appropriate film thickness was acquired.…”
Section: Methodsmentioning
confidence: 99%
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“…Along with this broad range of established end‐uses, a renewed interest in iron‐cobalt oxide systems arises from their use as anodes in photoelectrochemical (PEC) cells. These devices convert sunlight into chemical energy through water splitting into molecular oxygen and hydrogen, in view of a viable solar fuel technology to address the increasing global energy demand in a carbon‐neutral fashion, reducing thus the environmental footprint …”
Section: Introductionmentioning
confidence: 99%
“…( and !"! !#$ have been explored including material or surface geometry modifications of the electrodes [6][7][8][9][10][11] . The goal of this approach is to improve the efficiency of the electrode/electrolyte interface by tailoring the electrode surface for better performance, e.g.…”
Section: Introductionmentioning
confidence: 99%