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3D Porous Pyramid H...
3D Porous Pyramid Heterostructure Array Realizing Efficient Photo-Electrochemical Performance
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Cao, S. (författare)
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Wu, Y. (författare)
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Hou, J. (författare)
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Zhang, B. (författare)
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Li, Z. (författare)
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Nie, X. (författare)
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- Sun, Licheng, 1962- (författare)
- KTH,Molekylär elektronik, CMD,Organisk kemi
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(creator_code:org_t)
- 2019-11-26
- 2019
- Engelska.
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Ingår i: Advanced Energy Materials. - : Wiley-VCH Verlag. - 1614-6832 .- 1614-6840.
- Relaterad länk:
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https://urn.kb.se/re...
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https://doi.org/10.1...
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Abstract
Ämnesord
Stäng
- Direct photo-electrochemical (PEC) water splitting is of great practical interest for developing a sustainable energy systems, but remains a big challenge owing to sluggish charge separation, low efficiency, and poor stability. Herein, a 3D porous In2O3/In2S3 pyramid heterostructure array on a fluorine-doped tin oxide substrate is fabricated by an ion exchange–induced synthesis strategy. Based on the synergistic structural and electronic modulations from density functional theory calculations and experimental observations, 3D porous In2O3/In2S3 photoanode by the protective layer delivers a low onset potential of ≈0.02 V versus reversible hydrogen electrode (RHE), the highest photocurrent density of 8.2 mA cm−2 at 1.23 V versus RHE among all the In2S3 photoanodes reported to date, an incident photon-to-current efficiency of 76% at 400 nm, and high stability over 20 h for PEC water splitting are reported. This work provides an alternative promising prototype for the design and construction of novel heterostructures in robust PEC water splitting applications.
Ämnesord
- NATURVETENSKAP -- Kemi -- Materialkemi (hsv//swe)
- NATURAL SCIENCES -- Chemical Sciences -- Materials Chemistry (hsv//eng)
Nyckelord
- 3D porous pyramid array
- heterostructures
- photo-electrochemical performance
- photoanodes
- Density functional theory
- Heterojunctions
- Indium sulfide
- Ion exchange
- Nanocomposites
- Tin oxides
- Design and construction
- Electrochemical performance
- Fluorine doped tin oxide
- Incident photon-to-current efficiencies
- Photo-anodes
- Pyramid arrays
- Reversible hydrogen electrodes
- Sustainable energy systems
- Photoelectrochemical cells
Publikations- och innehållstyp
- ref (ämneskategori)
- art (ämneskategori)
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