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Molecular Engineeri...
Molecular Engineering of Photocathodes based on Polythiophene Organic Semiconductors for Photoelectrochemical Hydrogen Generation
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- Zhao, Ziqi (författare)
- Dalian Univ Technol, DUT KTH Joint Educ & Res Ctr Mol Devices, Inst Artificial Photosynth, State Key Lab Fine Chem, Dalian 116024, Peoples R China.
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- Zhan, Shaoqi (författare)
- KTH,Teoretisk kemi och biologi,Univ Calif Riverside, Dept Chem, Riverside, CA 92521 USA.
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- Feng, Lu (författare)
- Dalian Univ Technol, DUT KTH Joint Educ & Res Ctr Mol Devices, Inst Artificial Photosynth, State Key Lab Fine Chem, Dalian 116024, Peoples R China.
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- Liu, Chang (författare)
- Dalian Univ Technol, DUT KTH Joint Educ & Res Ctr Mol Devices, Inst Artificial Photosynth, State Key Lab Fine Chem, Dalian 116024, Peoples R China.
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- Ahlquist, Mårten S. G., 1979- (författare)
- KTH,Teoretisk kemi och biologi
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- Wu, Xiujuan (författare)
- Dalian Univ Technol, DUT KTH Joint Educ & Res Ctr Mol Devices, Inst Artificial Photosynth, State Key Lab Fine Chem, Dalian 116024, Peoples R China.
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- Fan, Ke (författare)
- Dalian Univ Technol, DUT KTH Joint Educ & Res Ctr Mol Devices, Inst Artificial Photosynth, State Key Lab Fine Chem, Dalian 116024, Peoples R China.
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- Li, Fusheng (författare)
- Dalian Univ Technol, DUT KTH Joint Educ & Res Ctr Mol Devices, Inst Artificial Photosynth, State Key Lab Fine Chem, Dalian 116024, Peoples R China.
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- Sun, Licheng, 1962- (författare)
- KTH,Kemi,Dalian Univ Technol, DUT KTH Joint Educ & Res Ctr Mol Devices, Inst Artificial Photosynth, State Key Lab Fine Chem, Dalian 116024, Peoples R China.;Westlake Univ, Ctr Artificial Photosynth Solar Fuels, Sch Sci, Hangzhou 310024, Peoples R China.
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Dalian Univ Technol, DUT KTH Joint Educ & Res Ctr Mol Devices, Inst Artificial Photosynth, State Key Lab Fine Chem, Dalian 116024, Peoples R China Teoretisk kemi och biologi (creator_code:org_t)
- 2021-08-17
- 2021
- Engelska.
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Ingår i: ACS Applied Materials and Interfaces. - : American Chemical Society (ACS). - 1944-8244 .- 1944-8252. ; 13:34, s. 40602-40611
- 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
- Organic semiconductors provide significant potentials for the construction of photoelectrochemical (PEC) cells for solar hydrogen production because of their highly tunable properties. Herein, on carbon fiber paper (CFP) surface, pyridyl (Py), and 4,4'-bipyridin-1-ium (Py-2(+)) groups were introduced into polythiophene (pTH) semiconductor by electrochemical copolymerization, respectively. After assembly with the Co(dmgBF(2))(2) type catalyst (CoB, dmgBF(2) = difluoroboryldimethylglyoximate), the CoB@Py-2(+)-pTH/CFP photocathode displayed nearly twice the photocurrent enhancement (550 mu A cm(-2) at 0.15 V vs reversible hydrogen electrode, RHE) comparing to that generated by the CoB@Py-pTH/CFP photocathode (290 mu A cm(-2) at 0.15 V vs RHE) for light-driven H-2 generation under AM 1.5 solar illumination. Investigation of the mechanism revealed that the introduction of the positively charged pyridinium groups could improve the intrinsic Co(dmgBF(2))(2) catalyst activity for the H-2 generation reaction. Meanwhile, the positively charged pyridinium groups serve as p-type dopants to increase the semiconductor bulk charge transfer rate and act as electron transfer mediators to promote the interfacial charge transfer kinetics between the catalyst and the pTH-based organic semiconductor.
Ämnesord
- NATURVETENSKAP -- Kemi -- Annan kemi (hsv//swe)
- NATURAL SCIENCES -- Chemical Sciences -- Other Chemistry Topics (hsv//eng)
Nyckelord
- photocathode
- polythiophene
- photoelectrochemical (PEC) cell
- light-driven hydrogen production
- solar energy conversion
Publikations- och innehållstyp
- ref (ämneskategori)
- art (ämneskategori)
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Till lärosätets databas
- Av författaren/redakt...
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Zhao, Ziqi
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Zhan, Shaoqi
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Feng, Lu
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Liu, Chang
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Ahlquist, Mårten ...
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Wu, Xiujuan
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visa fler...
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Fan, Ke
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Li, Fusheng
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Sun, Licheng, 19 ...
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- Om ämnet
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- NATURVETENSKAP
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NATURVETENSKAP
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och Kemi
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och Annan kemi
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Kungliga Tekniska Högskolan