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Chihi A. Gamma-irradiated stibnite thin films set a remarkable benchmark performance for photoelectrochemical water splitting. RSC Adv 2024; 14:12475-12495. [PMID: 38633490 PMCID: PMC11022282 DOI: 10.1039/d4ra01382d] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/22/2024] [Accepted: 04/11/2024] [Indexed: 04/19/2024] Open
Abstract
The study sets out to show the positive impact of sulfur vacancy engineering on the structural, morphological, optical, electrical, and photoelectrochemical (PEC) properties of Sb2S3 films synthesized using the spin coating technique. The produced films were exposed to γ-irradiation with different doses from 0 to 20 kGy. We have demonstrated the formation of sulfur vacancies and loss of oxygen content in the irradiated samples. XRD measurements revealed that all films exhibit a polycrystalline structure, and the crystallite size increases with the rising radiation dose, reaching the highest value of 87.4 nm measured for the Sb2S3 film irradiated with 15 kGy. The surface roughness of the irradiated samples increases with increasing γ-irradiation dose. The increase in surface roughness not only raises the active sites but enhances the conductivity of the Sb2S3 material as well. The wettability properties of the irradiated films were affected by γ-irradiation doses and the sample irradiated with 15 kGy exhibited the lowest hydrophobicity compared to others. The Hall measurements reveal that irradiated samples exhibit p-type semiconductor behavior. The optical band gap decreased progressively from 1.78 eV to 1.60 eV up to the irradiation dose of 15 kGy and slightly increased thereafter. The irradiated sample with 15 kGy showed a maximum photocurrent density of ca. 1.62 mA cm-2 at 0 V vs. reverse hydrogen electrode (RHE) under AM 1.5 G illumination with applied bias photon-to-current efficiency (ABPE) of 0.82% at 0.47 V vs. RHE, suggesting superior PEC water splitting performance compared to other samples. At 0 V vs. RHE and 648 nm, the incident photon current efficiency (IPCE) and absorbed photon current efficiency (APCE) of the photocathode irradiated with 15 kGy are significantly higher than those of the other photocathodes with values of 9.35% and 14.47%, respectively. Finally, Mott-Schottky measurement was also performed on all photocathodes to estimate their acceptor density and flat band potential.
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Affiliation(s)
- Adel Chihi
- Photovoltaic Laboratory, Research and Technology Centre of Energy Borj-Cedria Science, and Technology Park, BP 95 2050 Hammam Lif Tunisia
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2
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Derelli D, Caddeo F, Frank K, Krötzsch K, Ewerhardt P, Krüger M, Medicus S, Klemeyer L, Skiba M, Ruhmlieb C, Gutowski O, Dippel AC, Parak WJ, Nickel B, Koziej D. Photodegradation of CuBi 2 O 4 Films Evidenced by Fast Formation of Metallic Bi using Operando Surface-sensitive X-ray Scattering. Angew Chem Int Ed Engl 2023; 62:e202307948. [PMID: 37635657 DOI: 10.1002/anie.202307948] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/08/2023] [Revised: 07/28/2023] [Accepted: 08/21/2023] [Indexed: 08/29/2023]
Abstract
CuBi2 O4 has recently emerged as a promising photocathode for photo-electrochemical (PEC) water splitting. However, its fast degradation under operation currently poses a limit to its application. Here, we report a novel method to study operando the semiconductor-electrolyte interface during PEC operation by surface-sensitive high-energy X-ray scattering. We find that a fast decrease in the generated photocurrents correlates directly with the formation of a metallic Bi phase. We further show that the slower formation of metallic Cu, as well as the dissolution of the electrode in contact with the electrolyte, further affect the CuBi2 O4 activity and morphology. Our study provides a comprehensive picture of the degradation mechanisms affecting CuBi2 O4 electrodes under operation and poses the methodological basis to investigate the photocorrosion processes affecting a wide range of PEC materials.
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Affiliation(s)
- Davide Derelli
- University of Hamburg, Institute for Nanostructure and Solid-State Physics, Center for Hybrid Nanostructures, Hamburg, Germany
| | - Francesco Caddeo
- University of Hamburg, Institute for Nanostructure and Solid-State Physics, Center for Hybrid Nanostructures, Hamburg, Germany
| | - Kilian Frank
- Ludwig-Maximilians-Universität München, Faculty of Physics and Center for NanoScience (CeNS), Munich, Germany
| | - Kilian Krötzsch
- University of Hamburg, Institute for Nanostructure and Solid-State Physics, Center for Hybrid Nanostructures, Hamburg, Germany
| | - Patrick Ewerhardt
- University of Hamburg, Institute for Nanostructure and Solid-State Physics, Center for Hybrid Nanostructures, Hamburg, Germany
| | - Marco Krüger
- University of Hamburg, Institute for Nanostructure and Solid-State Physics, Center for Hybrid Nanostructures, Hamburg, Germany
| | - Sophie Medicus
- University of Hamburg, Institute for Nanostructure and Solid-State Physics, Center for Hybrid Nanostructures, Hamburg, Germany
| | - Lars Klemeyer
- University of Hamburg, Institute for Nanostructure and Solid-State Physics, Center for Hybrid Nanostructures, Hamburg, Germany
| | - Marvin Skiba
- University of Hamburg, Institute for Nanostructure and Solid-State Physics, Center for Hybrid Nanostructures, Hamburg, Germany
- The Hamburg Centre for Ultrafast Imaging, Hamburg, Germany
| | - Charlotte Ruhmlieb
- University of Hamburg, Institute of Physical Chemistry, Hamburg, Germany
| | - Olof Gutowski
- Deutsches Elektronen-Synchrotron DESY, Hamburg, Germany
| | | | - Wolfgang J Parak
- University of Hamburg, Institute for Nanostructure and Solid-State Physics, Center for Hybrid Nanostructures, Hamburg, Germany
- The Hamburg Centre for Ultrafast Imaging, Hamburg, Germany
| | - Bert Nickel
- Ludwig-Maximilians-Universität München, Faculty of Physics and Center for NanoScience (CeNS), Munich, Germany
| | - Dorota Koziej
- University of Hamburg, Institute for Nanostructure and Solid-State Physics, Center for Hybrid Nanostructures, Hamburg, Germany
- The Hamburg Centre for Ultrafast Imaging, Hamburg, Germany
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3
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Liu B, Wang S, Zhang G, Gong Z, Wu B, Wang T, Gong J. Tandem cells for unbiased photoelectrochemical water splitting. Chem Soc Rev 2023. [PMID: 37325843 DOI: 10.1039/d3cs00145h] [Citation(s) in RCA: 2] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 06/17/2023]
Abstract
Hydrogen is an essential energy carrier which will address the challenges posed by the energy crisis and climate change. Photoelectrochemical water splitting (PEC) is an important method for producing solar-powered hydrogen. The PEC tandem configuration harnesses sunlight as the exclusive energy source to drive both the hydrogen (HER) and oxygen evolution reactions (OER), simultaneously. Therefore, PEC tandem cells have been developed and gained tremendous interest in recent decades. This review describes the current status of the development of tandem cells for unbiased photoelectrochemical water splitting. The basic principles and prerequisites for constructing PEC tandem cells are introduced first. We then review various single photoelectrodes for use in water reduction or oxidation, and highlight the current state-of-the-art discoveries. Second, a close look into recent developments of PEC tandem cells in water splitting is provided. Finally, a perspective on the key challenges and prospects for the development of tandem cells for unbiased PEC water splitting are given.
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Affiliation(s)
- Bin Liu
- School of Chemical Engineering and Technology, Key Laboratory for Green Chemical Technology of Ministry of Education, Tianjin University, Tianjin 300072, China.
- Collaborative Innovation Center of Chemical Science and Engineering (Tianjin), Tianjin 300072, China
- Joint School of National University of Singapore and Tianjin University, International Campus of Tianjin University, Binhai New City, Fuzhou 350207, China
- Department of Chemical and Environmental Engineering, School of Engineering and Applied Sciences, Yale University, New Haven, CT 06520, USA
| | - Shujie Wang
- School of Chemical Engineering and Technology, Key Laboratory for Green Chemical Technology of Ministry of Education, Tianjin University, Tianjin 300072, China.
- Collaborative Innovation Center of Chemical Science and Engineering (Tianjin), Tianjin 300072, China
- Joint School of National University of Singapore and Tianjin University, International Campus of Tianjin University, Binhai New City, Fuzhou 350207, China
| | - Gong Zhang
- School of Chemical Engineering and Technology, Key Laboratory for Green Chemical Technology of Ministry of Education, Tianjin University, Tianjin 300072, China.
- Collaborative Innovation Center of Chemical Science and Engineering (Tianjin), Tianjin 300072, China
| | - Zichen Gong
- School of Chemical Engineering and Technology, Key Laboratory for Green Chemical Technology of Ministry of Education, Tianjin University, Tianjin 300072, China.
- Collaborative Innovation Center of Chemical Science and Engineering (Tianjin), Tianjin 300072, China
| | - Bo Wu
- School of Chemical Engineering and Technology, Key Laboratory for Green Chemical Technology of Ministry of Education, Tianjin University, Tianjin 300072, China.
- Collaborative Innovation Center of Chemical Science and Engineering (Tianjin), Tianjin 300072, China
| | - Tuo Wang
- School of Chemical Engineering and Technology, Key Laboratory for Green Chemical Technology of Ministry of Education, Tianjin University, Tianjin 300072, China.
- Collaborative Innovation Center of Chemical Science and Engineering (Tianjin), Tianjin 300072, China
| | - Jinlong Gong
- School of Chemical Engineering and Technology, Key Laboratory for Green Chemical Technology of Ministry of Education, Tianjin University, Tianjin 300072, China.
- Collaborative Innovation Center of Chemical Science and Engineering (Tianjin), Tianjin 300072, China
- Joint School of National University of Singapore and Tianjin University, International Campus of Tianjin University, Binhai New City, Fuzhou 350207, China
- Department of Chemical and Environmental Engineering, School of Engineering and Applied Sciences, Yale University, New Haven, CT 06520, USA
- Haihe Laboratory of Sustainable Chemical Transformations, Tianjin 300192, China
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4
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Lam NH, Truong NTN, Le N, Ahn KS, Jo Y, Kim CD, Jung JH. Improving the photoelectrochemical water splitting performance of CuO photocathodes using a protective CuBi 2O 4 layer. Sci Rep 2023; 13:5776. [PMID: 37031237 PMCID: PMC10082760 DOI: 10.1038/s41598-023-32804-0] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/27/2023] [Accepted: 04/03/2023] [Indexed: 04/10/2023] Open
Abstract
A heterojunction photocathode of CuO and CuBi2O4 grown on an FTO substrate (FTO/CuO/CuBi2O4) was synthesized using hydrothermal method followed by spin coating and annealing to overcome the bottlenecks encountered by CuO in photoelectrochemical (PEC) water splitting application. The synthesis methods, morphological, structural properties, and composition of each sample under each synthesis condition are discussed in detail. The photocathode with 15 coating layers annealed at 450 °C exhibited the best PEC performance. Moreover, its current density reached 1.23 mA/cm2 under an applied voltage of - 0.6 V versus Ag/AgCl in a neutral electrolyte. Additionally, it exhibited higher stability than the bare CuO thin film. The bonding of CuBi2O4 on CuO resulted in close contact between the two semiconductors, helping the semiconductors support each other to increase the PEC efficiency of the photocathode. CuO acted as the electron-generating layer, and the CuBi2O4 layer helped minimize photocorrosion as well as transport the carriers to the electrode/electrolyte interface to accomplish the hydrogen evolution reaction.
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Affiliation(s)
- Nguyen Hoang Lam
- School of Chemical Engineering, Yeungnam University, 280 Daehak-ro, Gyeongsan, 38541, Republic of Korea
| | - Nguyen Tam Nguyen Truong
- School of Chemical Engineering, Yeungnam University, 280 Daehak-ro, Gyeongsan, 38541, Republic of Korea.
| | - Nam Le
- School of Chemical Engineering, Yeungnam University, 280 Daehak-ro, Gyeongsan, 38541, Republic of Korea
| | - Kwang-Soon Ahn
- School of Chemical Engineering, Yeungnam University, 280 Daehak-ro, Gyeongsan, 38541, Republic of Korea
| | - Younjung Jo
- Department of Physics, Kyungpook National University, Daegu, 41566, Republic of Korea
| | - Chang-Duk Kim
- Department of Physics, Kyungpook National University, Daegu, 41566, Republic of Korea.
| | - Jae Hak Jung
- School of Chemical Engineering, Yeungnam University, 280 Daehak-ro, Gyeongsan, 38541, Republic of Korea.
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5
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Lu X, Xie J, Wang L, Ren J, Yang S, Yang Q, Wang S, Huang C, Yang P. CuBi2O4/CuO Heterojunction Coated with Electrodeposited ZnO Overlayer for Stable Solar Hydrogen Evolution. J Electroanal Chem (Lausanne) 2023. [DOI: 10.1016/j.jelechem.2023.117421] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 04/05/2023]
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6
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Masoumi Z, Tayebi M, Lari SAM, Seo B, Lim CS, Kim HG, Kyung D, Tayebi M. Photoelectrochemical Performance of a CuBi2O4 Photocathode with H2O2 as a Scavenger. INORGANICS 2023. [DOI: 10.3390/inorganics11040147] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 04/03/2023] Open
Abstract
Photoelectrochemical (PEC) water splitting is an eco-friendly method for producing clean and sustainable hydrogen fuels. Compared with the fabrication of solar hydrogen using n-type metal oxide semiconductor photoanodes, that of solar hydrogen using p-type metal oxide semiconductor photocathodes has not been researched as thoroughly. Therefore, this study investigated the effect of drop casting time on the PEC performance of a prepared CuBi2O4 photocathode. XPS, HRTEM, UV-DRS, Raman spectroscopy, XRD, and SEM analyses were used to characterize the prepared CuBi2O4 photocathode. Owing to the high charge separation and transfer, the photocurrent density of the CuBi2O4 photocathode was ~0.6 mA cm−2 at 0.3 V vs. RHE. The nanoporous CuBi2O4 photocathode exhibited a high photocurrent density of up to 1.2 mA cm−2 at 0.3 V vs. RHE with H2O2 as a sacrificial agent. Mott–Schottky and impedance measurements were also performed on the CuBi2O4 photocathode to estimate its acceptor density and charge-transfer resistance.
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7
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An Electrospun Porous CuBi 2O 4 Nanofiber Photocathode for Efficient Solar Water Splitting. Polymers (Basel) 2021; 13:polym13193341. [PMID: 34641154 PMCID: PMC8512590 DOI: 10.3390/polym13193341] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/28/2021] [Revised: 08/11/2021] [Accepted: 08/12/2021] [Indexed: 11/16/2022] Open
Abstract
While the CuBi2O4-based photocathode has emerged as an ideal candidate for photoelectrochemical water splitting, it is still far from its theoretical values due to poor charge carrier transport, poor electron-hole separation, and instability caused by self-photoelectric-corrosion with electrolytes. Establishing synthesis methods to produce a CuBi2O4 photocathode with sufficient cocatalyst sites would be highly beneficial for water splitting. Here, the platinum-enriched porous CuBi2O4 nanofiber (CuBi2O4/Pt) with uniform coverage and high surface area was prepared as a photocathode through an electrospinning and electrodeposition process for water splitting. The prepared photocathode material was composed of a CuBi2O4 nanofiber array, which has a freestanding porous structure, and the Pt nanoparticle is firmly embedded on the rough surface. The highly porous nanofiber structures allow the cocatalyst (Pt) better alignment on the surface of CuBi2O4, which can effectively suppress the electron-hole recombination at the electrolyte interface. The as-fabricated CuBi2O4 nanofiber has a tetragonal crystal structure, and its band gap was determined to be 1.8 eV. The self-supporting porous structure and electrocatalytic activity of Pt can effectively promote the separation of electron-hole pairs, thus obtaining high photocurrent density (0.21 mA/cm2 at 0.6 V vs. RHE) and incident photon-to-current conversion efficiency (IPCE, 4% at 380 nm). This work shows a new view for integrating an amount of Pt nanoparticles with CuBi2O4 nanofibers and demonstrates the synergistic effect of cocatalysts for future solar water splitting.
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8
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Zhang Y, Wang L, Xu X. A bias-free CuBi 2O 4–CuWO 4 tandem cell for solar-driven water splitting. Inorg Chem Front 2021. [DOI: 10.1039/d1qi00088h] [Citation(s) in RCA: 4] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/08/2023]
Abstract
An all-copper-based oxide tandem cell based on CuBi2O4 and CuWO4 films has been fabricated which shows promising water splitting photocurrents under simulated solar insolation without an external bias.
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Affiliation(s)
- Yuwei Zhang
- Putuo People's Hospital
- Tongji University
- Shanghai
- China
- Shanghai Key Lab of Chemical Assessment and Sustainability
| | - Lina Wang
- Putuo People's Hospital
- Tongji University
- Shanghai
- China
- Shanghai Key Lab of Chemical Assessment and Sustainability
| | - Xiaoxiang Xu
- Putuo People's Hospital
- Tongji University
- Shanghai
- China
- Shanghai Key Lab of Chemical Assessment and Sustainability
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9
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Lee J, Yoon H, Choi KS, Kim S, Seo S, Song J, Choi BU, Ryu J, Ryu S, Oh J, Jeon C, Lee S. Template Engineering of CuBi 2 O 4 Single-Crystal Thin Film Photocathodes. SMALL (WEINHEIM AN DER BERGSTRASSE, GERMANY) 2020; 16:e2002429. [PMID: 32686276 DOI: 10.1002/smll.202002429] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 04/16/2020] [Revised: 06/07/2020] [Indexed: 06/11/2023]
Abstract
To develop strategies for efficient photo-electrochemical water-splitting, it is important to understand the fundamental properties of oxide photoelectrodes by synthesizing and investigating their single-crystal thin films. However, it is challenging to synthesize high-quality single-crystal thin films from copper-based oxide photoelectrodes due to the occurrence of significant defects such as copper or oxygen vacancies and grains. Here, the CuBi2 O4 (CBO) single-crystal thin film photocathode is achieved using a NiO template layer grown on single-crystal SrTiO3 (STO) (001) substrate via pulsed laser deposition. The NiO template layer plays a role as a buffer layer of large lattice mismatch between CBO and STO (001) substrate through domain-matching epitaxy, and forms a type-II band alignment with CBO, which prohibits the transfer of photogenerated electrons toward bottom electrode. The photocurrent densities of the CBO single-crystal thin film photocathode demonstrate -0.4 and -0.7 mA cm-2 at even 0 VRHE with no severe dark current under illumination in a 0.1 m potassium phosphate buffer solution without and with H2 O2 as an electron scavenger, respectively. The successful synthesis of high-quality CBO single-crystal thin film would be a cornerstone for the in-depth understanding of the fundamental properties of CBO toward efficient photo-electrochemical water-splitting.
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Affiliation(s)
- Jongmin Lee
- School of Materials Science and Engineering, Gwangju Institute of Science and Technology, Gwangju, 61005, Republic of Korea
| | - Hongji Yoon
- School of Materials Science and Engineering, Gwangju Institute of Science and Technology, Gwangju, 61005, Republic of Korea
| | - Kyoung Soon Choi
- National Research Facilities and Equipment Center, Korea Basic Science Institute, Daejeon, 34133, Republic of Korea
| | - Seungkyu Kim
- School of Materials Science and Engineering, Gwangju Institute of Science and Technology, Gwangju, 61005, Republic of Korea
| | - Sehun Seo
- School of Materials Science and Engineering, Gwangju Institute of Science and Technology, Gwangju, 61005, Republic of Korea
| | - Jaesun Song
- School of Materials Science and Engineering, Gwangju Institute of Science and Technology, Gwangju, 61005, Republic of Korea
| | - Byeong-Uk Choi
- Department of Materials Science and Engineering, Korea Advanced Institute of Science and Technology, Daejeon, 34113, Republic of Korea
| | - Jiseung Ryu
- Analysis Technical Center, Korea Institute of Ceramic Engineering and Technology, Jinju, Gyeongsangnam-do, 52851, Republic of Korea
| | - Sangwoo Ryu
- Department of Advanced Materials Engineering, Kyonggi University, Suwon, Gyeonggi-do, 16227, Republic of Korea
| | - Jihun Oh
- Department of Materials Science and Engineering, Korea Advanced Institute of Science and Technology, Daejeon, 34113, Republic of Korea
- Graduate School of Energy, Environment Water and Sustainability (EEWS), Korea Advanced Institute of Science and Technology, Daejeon, 34141, Republic of Korea
| | - Cheolho Jeon
- The Advanced Nano Surface Research Group, Korea Basic Science Institute, Daejeon, 34133, Republic of Korea
| | - Sanghan Lee
- School of Materials Science and Engineering, Gwangju Institute of Science and Technology, Gwangju, 61005, Republic of Korea
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10
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Self-powered aptasensing for prostate specific antigen based on a membraneless photoelectrochemical fuel cell. Biosens Bioelectron 2020; 165:112357. [PMID: 32729490 DOI: 10.1016/j.bios.2020.112357] [Citation(s) in RCA: 11] [Impact Index Per Article: 2.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/27/2020] [Revised: 05/30/2020] [Accepted: 06/01/2020] [Indexed: 01/15/2023]
Abstract
A self-powered aptasensor for prostate specific antigen (PSA) based on a membraneless photoelectrochemical fuel cell (PEFC) with double photoelectrodes was constructed, in which, PSA-binding aptamer was electrostatically immobilized on the KOH-doped g-C3N4 modified TiO2 nanotube arrays (TNA/A-g-C3N4/aptamer), which was used as a photoanode, and Fe3+-doped CuBi2O4 modified indium doped tin oxide (ITO) substrate (ITO/CBFeO) was used as a photocathode. Under visible light irradiation, glucose was photocatalytically oxidized by A-g-C3N4 and generated H2O2 in situ, which was used as the electron acceptor for ITO/CBFeO photocathode, thus producing a high cell output response with a maximum output power of 133.5 μW cm-2 and an open circuit potential of 0.98 V. Due to the specific recognition of PSA by the aptamer and the output power decrease of the PEFC caused by the steric hindrance of the captured PSA on the TNA/A-g-C3N4, the PEFC could be used as a self-powered aptasensor for PSA with a quantitative range of 0.005-50 ng mL-1, a low detection limit of 1.3 pg mL-1 and good selectivity, and has been successfully applied for the analysis of real human serum samples with good precision of the relative standard deviation (RSD) less than 5.6% and good accuracy of the recoveries ranged from 91% to 108%.
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11
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Wei S, Wang C, Long X, Wang T, Wang P, Zhang M, Li S, Ma J, Jin J, Wu L. A oxygen vacancy-modulated homojunction structural CuBi 2O 4 photocathodes for efficient solar water reduction. NANOSCALE 2020; 12:15193-15200. [PMID: 32638787 DOI: 10.1039/d0nr04473c] [Citation(s) in RCA: 7] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/11/2023]
Abstract
The photoelectrochemical (PEC) water reduction performance of CuBi2O4 (CBO)-based photocathodes is still far from their theoretical values due to low bulk and surface charge separation efficiencies. Herein, we propose a regrowth strategy to prepare a photocathode with CBO coating on Zn-doped CBO (CBO/Zn-CBO). Furthermore, NaBH4 treatment of CBO/Zn-CBO introduced oxygen vacancies (Ov) on CBO/Zn-CBO. It was found that Zn-doping not only increases the charge carrier concentration of CBO, but also leads to appropriate band alignment to form homojunctions. This homojunction can effectively promote the separation of electron-hole pairs, thus obtaining excellent photocurrent density (0.5 mA cm-2 at 0.3 V vs. RHE) and charge separation efficiency (1.5 times than CBO). The following surface treatment induced Ov on CBO/Zn-CBO, which significantly increased the active area of the surface catalytic reaction and further enhanced the photocurrent density (0.6 mA cm-2). In the absence of cocatalysts, the electron injection efficiency of Ov/CBO/Zn-CBO was 1.47 times improved than that of CBO. This work demonstrates a homojunction photocathode with Ov modulation, which provides a new view for future photoelectrochemical water splitting.
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Affiliation(s)
- Shenqi Wei
- State Key Laboratory of Applied Organic Chemistry (SKLAOC), The Key Laboratory of Catalytic Engineering of Gansu Province, College of Chemistry and Chemical Engineering, Lanzhou University, Lanzhou, Gansu 730000, P. R. China.
| | - Chenglong Wang
- State Key Laboratory of Applied Organic Chemistry (SKLAOC), The Key Laboratory of Catalytic Engineering of Gansu Province, College of Chemistry and Chemical Engineering, Lanzhou University, Lanzhou, Gansu 730000, P. R. China.
| | - Xuefeng Long
- State Key Laboratory of Applied Organic Chemistry (SKLAOC), The Key Laboratory of Catalytic Engineering of Gansu Province, College of Chemistry and Chemical Engineering, Lanzhou University, Lanzhou, Gansu 730000, P. R. China.
| | - Tong Wang
- State Key Laboratory of Applied Organic Chemistry (SKLAOC), The Key Laboratory of Catalytic Engineering of Gansu Province, College of Chemistry and Chemical Engineering, Lanzhou University, Lanzhou, Gansu 730000, P. R. China.
| | - Peng Wang
- State Key Laboratory of Applied Organic Chemistry (SKLAOC), The Key Laboratory of Catalytic Engineering of Gansu Province, College of Chemistry and Chemical Engineering, Lanzhou University, Lanzhou, Gansu 730000, P. R. China.
| | - Mingrui Zhang
- College of Chemical Engineering, Northwest University for Nationalities, Lanzhou, Gansu 730030, P.R. China.
| | - Shuwen Li
- State Key Laboratory of Applied Organic Chemistry (SKLAOC), The Key Laboratory of Catalytic Engineering of Gansu Province, College of Chemistry and Chemical Engineering, Lanzhou University, Lanzhou, Gansu 730000, P. R. China.
| | - Jiantai Ma
- State Key Laboratory of Applied Organic Chemistry (SKLAOC), The Key Laboratory of Catalytic Engineering of Gansu Province, College of Chemistry and Chemical Engineering, Lanzhou University, Lanzhou, Gansu 730000, P. R. China.
| | - Jun Jin
- State Key Laboratory of Applied Organic Chemistry (SKLAOC), The Key Laboratory of Catalytic Engineering of Gansu Province, College of Chemistry and Chemical Engineering, Lanzhou University, Lanzhou, Gansu 730000, P. R. China.
| | - Lan Wu
- College of Chemical Engineering, Northwest University for Nationalities, Lanzhou, Gansu 730030, P.R. China.
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12
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Lee H, Yang W, Tan J, Park J, Shim SG, Park YS, Yun JW, Kim KM, Moon J. High-Performance Phase-Pure SnS Photocathodes for Photoelectrochemical Water Splitting Obtained via Molecular Ink-Derived Seed-Assisted Growth of Nanoplates. ACS APPLIED MATERIALS & INTERFACES 2020; 12:15155-15166. [PMID: 32167272 DOI: 10.1021/acsami.9b23045] [Citation(s) in RCA: 6] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/10/2023]
Abstract
Although tin monosulfide (SnS) is one of the promising earth-abundant semiconducting materials for photoelectrochemical water splitting, the performance of SnS photocathodes remains poor. Herein, we report a stepwise approach for the fabrication of highly efficient photocathodes based on SnS nanoplates via elaborate modulation of molecular solutions. It is demonstrated that phase-pure SnS nanoplates without detrimental secondary phases (such as SnS2 and Sn2S3) can be readily obtained by adjusting the amounts of Sn and S in the precursor solution. Additionally, the orientation of SnS nanoplates is controlled by implementing different types of SnS seed layers. The orientations of the SnS seed layers are changed according to the molecular shapes of the Sn-S bonds in the molecular solutions, depending on the relative nucleophilicity of the molecular moieties formed by specific thiol-amine reactions. The molecular Sn-S sheets in the seed ink was obtained by the reaction in a solvent mixture of thiogylcolic acid and ethanolamine. By contrast, the short Sn-S molecular rods result from the reaction in a solvent mixture of 2-mercaptoethanol and ethylenediamine. Interestingly, the relatively short rodlike morphology of the SnS seed induces the growth of SnS nanostructures faceted by preferred (111) and (101) planes, leading to fast charge transport. With the formation of a proper band alignment with n-type CdS and TiO2, the preferred (111)- and (101)-oriented SnS nanoplate-based photocathode exhibited a photocurrent density of -19 mA cm-2 at 0 V versus a reversible hydrogen electrode, establishing a new benchmark for SnS photocathodes.
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Affiliation(s)
- Hyungsoo Lee
- Department of Materials Science and Engineering, Yonsei University, Seoul 03722, Republic of Korea
| | - Wooseok Yang
- Department of Materials Science and Engineering, Yonsei University, Seoul 03722, Republic of Korea
| | - Jeiwan Tan
- Department of Materials Science and Engineering, Yonsei University, Seoul 03722, Republic of Korea
| | - Jaemin Park
- Department of Materials Science and Engineering, Yonsei University, Seoul 03722, Republic of Korea
| | - Sang Gi Shim
- Department of Materials Science and Engineering, Yonsei University, Seoul 03722, Republic of Korea
| | - Young Sun Park
- Department of Materials Science and Engineering, Yonsei University, Seoul 03722, Republic of Korea
| | - Ju Won Yun
- Department of Materials Science and Engineering, Yonsei University, Seoul 03722, Republic of Korea
| | - Kyung Min Kim
- Department of Materials Science and Engineering, Yonsei University, Seoul 03722, Republic of Korea
| | - Jooho Moon
- Department of Materials Science and Engineering, Yonsei University, Seoul 03722, Republic of Korea
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13
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Song A, Bogdanoff P, Esau A, Ahmet IY, Levine I, Dittrich T, Unold T, van de Krol R, Berglund SP. Assessment of a W:BiVO 4-CuBi 2O 4Tandem Photoelectrochemical Cell for Overall Solar Water Splitting. ACS APPLIED MATERIALS & INTERFACES 2020; 12:13959-13970. [PMID: 32096970 DOI: 10.1021/acsami.0c00696] [Citation(s) in RCA: 12] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/10/2023]
Abstract
We assess a tandem photoelectrochemical cell consisting of a W:BiVO4 photoanode top absorber and a CuBi2O4 photocathode bottom absorber for overall solar water splitting. We show that the W:BiVO4 photoanode oxidizes water and produces oxygen at potentials ≥0.7 V vs RHE when CoPi is added as a cocatalyst. However, the CuBi2O4 photocathode does not produce a detectable amount of hydrogen from water reduction even when Pt or RuOx is added as a cocatalyst because the photocurrent primarily goes toward photocorrosion of CuBi2O4 rather than proton reduction. Protecting the CuBi2O4 photocathode with a CdS/TiO2 heterojunction and adding RuOx as a cocatalyst prevents photocorrosion and allows for photoelectrochemical production of hydrogen at potentials ≤0.3 V vs RHE. A tandem photoelectrochemical cell composed of a W:BiVO4/CoPi photoanode and a CuBi2O4/CdS/TiO2/RuOx photocathode produces hydrogen which can be detected under illumination at an applied bias of ≥0.4 V. Since the valence band of BiVO4 and conduction band of CuBi2O4 are adequately positioned to oxidize water and reduce protons, we hypothesize that the applied bias is required to overcome the relatively low photovoltages of the photoelectrodes, that is, the relatively low quasi-Fermi level splitting within BiVO4 and CuBi2O4. This work is the first experimental demonstration of hydrogen production from a BiVO4-CuBi2O4-based tandem cell and it provides important insights into the significance of photovoltage in tandem devices for overall water splitting, especially for cells containing CuBi2O4 photocathodes.
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Affiliation(s)
- Angang Song
- Institute for Solar Fuels, Helmholtz-Zentrum Berlin für Materialien und Energie GmbH, Hahn-Meitner-Platz 1, 14109 Berlin, Germany
- Institut für Chemie, Technische Universität Berlin, Straße des 17. Juni 124, 10623 Berlin, Germany
| | - Peter Bogdanoff
- Institute for Solar Fuels, Helmholtz-Zentrum Berlin für Materialien und Energie GmbH, Hahn-Meitner-Platz 1, 14109 Berlin, Germany
| | - Alexander Esau
- Institute for Solar Fuels, Helmholtz-Zentrum Berlin für Materialien und Energie GmbH, Hahn-Meitner-Platz 1, 14109 Berlin, Germany
| | - Ibbi Y Ahmet
- Institute for Solar Fuels, Helmholtz-Zentrum Berlin für Materialien und Energie GmbH, Hahn-Meitner-Platz 1, 14109 Berlin, Germany
| | - Igal Levine
- Institute for Silicon Photovoltaics, Helmholtz-Zentrum Berlin für Materialien und Energie GmbH, 12489 Berlin, Germany
| | - Thomas Dittrich
- Institute for Silicon Photovoltaics, Helmholtz-Zentrum Berlin für Materialien und Energie GmbH, 12489 Berlin, Germany
| | - Thomas Unold
- Department of Structure and Dynamics of Energy Materials, Helmholtz-Zentrum Berlin für Materialien und Energie GmbH, Hahn-Meitner-Platz 1, 14109 Berlin, Germany
| | - Roel van de Krol
- Institute for Solar Fuels, Helmholtz-Zentrum Berlin für Materialien und Energie GmbH, Hahn-Meitner-Platz 1, 14109 Berlin, Germany
- Institut für Chemie, Technische Universität Berlin, Straße des 17. Juni 124, 10623 Berlin, Germany
| | - Sean P Berglund
- Institute for Solar Fuels, Helmholtz-Zentrum Berlin für Materialien und Energie GmbH, Hahn-Meitner-Platz 1, 14109 Berlin, Germany
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14
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Hu K, E L, Zhao D, Li Y, Zhao W, Rong H. Characteristics and performance of rutile/anatase/brookite TiO2 and TiO2–Ti2O3(H2O)2(C2O4)·H2O multiphase mixed crystal for the catalytic degradation of emerging contaminants. CrystEngComm 2020. [DOI: 10.1039/c9ce01694e] [Citation(s) in RCA: 8] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/27/2022]
Abstract
The as-synthesized rutile/anatase TiO2 and rutile/anatase/brookite TiO2–Ti2O3(H2O)2(C2O4)·H2O, particularly rutile/anatase TiO2, showed excellent catalytic oxidation of organic contaminants (MO and HBA).
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Affiliation(s)
- Kangkai Hu
- School of Materials Science and Engineering
- Tianjin Chengjian University
- Tianjin
- China
| | - Lei E
- School of Materials Science and Engineering
- Tianjin Chengjian University
- Tianjin
- China
- Tianjin Key Laboratory of Building Green Functional Materials
| | - Dan Zhao
- School of Materials Science and Engineering
- Tianjin Chengjian University
- Tianjin
- China
- Tianjin Key Laboratory of Building Green Functional Materials
| | - Yajing Li
- School of Environmental and Municipal Engineering
- Tianjin Chengjian University
- Tianjin
- China
| | - Wei Zhao
- School of Materials Science and Engineering
- Tianjin Chengjian University
- Tianjin
- China
- Tianjin Key Laboratory of Building Green Functional Materials
| | - Hui Rong
- School of Materials Science and Engineering
- Tianjin Chengjian University
- Tianjin
- China
- Tianjin Key Laboratory of Building Green Functional Materials
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15
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Pan L, Vlachopoulos N, Hagfeldt A. Directly Photoexcited Oxides for Photoelectrochemical Water Splitting. CHEMSUSCHEM 2019; 12:4337-4352. [PMID: 31478349 DOI: 10.1002/cssc.201900849] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 03/26/2019] [Revised: 06/02/2019] [Indexed: 06/10/2023]
Abstract
Artificial photosynthesis promises to become a sustainable way to harvest solar energy and store it in chemical fuels by means of photoelectrochemical (PEC) cells. Although it is intriguing to shift the fossil-fuel-based economy to a renewable carbon-neutral one, which will alleviate environmental problems, there is still a long way to go before it rivals traditional energy sources. Existing solar water-splitting devices can be sorted into three categories: photovoltaic-powered electrolysis, PEC water splitting, and photocatalysis (PC). PEC and PC systems hold the potential to further reduce the cost of devices due to their simple structures in which photoabsorbers and catalysts are closely integrated. PC is expected to be the least expensive approach; however, additional costs and concerns are brought about by the subsequent explosive gas separation. At the heart of all devices, semiconductor photoabsorbers should be efficient, robust, and cheap to satisfy the strict requirements on the market. Therefore, this Review intends to give readers an overview on PEC water splitting, with an emphasis on oxide material-based devices, which hold the potential to support global-scale production in the future.
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Affiliation(s)
- Linfeng Pan
- Laboratory of Photomolecular Science, Institute of Chemical Sciences and Engineering, Swiss Federal Institute of Technology in Lausanne (EPFL), 1015, Lausanne, Switzerland
| | - Nick Vlachopoulos
- Laboratory of Photomolecular Science, Institute of Chemical Sciences and Engineering, Swiss Federal Institute of Technology in Lausanne (EPFL), 1015, Lausanne, Switzerland
| | - Anders Hagfeldt
- Laboratory of Photomolecular Science, Institute of Chemical Sciences and Engineering, Swiss Federal Institute of Technology in Lausanne (EPFL), 1015, Lausanne, Switzerland
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16
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Lee J, Yoon H, Kim S, Seo S, Song J, Choi BU, Choi SY, Park H, Ryu S, Oh J, Lee S. Long-term stabilized high-density CuBi 2O 4/NiO heterostructure thin film photocathode grown by pulsed laser deposition. Chem Commun (Camb) 2019; 55:12447-12450. [PMID: 31528870 DOI: 10.1039/c9cc06092h] [Citation(s) in RCA: 11] [Impact Index Per Article: 2.2] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/14/2023]
Abstract
Harvesting sustainable hydrogen through water-splitting requires a durable photoelectrode to achieve high efficiency and long lifetime. Dense, uniform CuBi2O4/NiO thin film photocathodes grown by pulsed laser deposition achieved photocurrent density over 1.5 mA cm-2 at 0.4 VRHE and long-term chronoamperometric stability for over 8 hours.
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Affiliation(s)
- Jongmin Lee
- School of Materials Science and Engineering, Gwangju Institute of Science and Technology, Gwangju 61005, Republic of Korea.
| | - Hongji Yoon
- School of Materials Science and Engineering, Gwangju Institute of Science and Technology, Gwangju 61005, Republic of Korea.
| | - Seungkyu Kim
- School of Materials Science and Engineering, Gwangju Institute of Science and Technology, Gwangju 61005, Republic of Korea.
| | - Sehun Seo
- School of Materials Science and Engineering, Gwangju Institute of Science and Technology, Gwangju 61005, Republic of Korea.
| | - Jaesun Song
- School of Materials Science and Engineering, Gwangju Institute of Science and Technology, Gwangju 61005, Republic of Korea.
| | - Byeong-Uk Choi
- Department of Materials Science and Engineering, Korea Advanced Institute of Science and Technology, Daejeon 34113, Republic of Korea
| | - Seung Yo Choi
- School of Energy Engineering, Kyungpook National University, Daegu 41566, Republic of Korea
| | - Hyunwoong Park
- School of Energy Engineering, Kyungpook National University, Daegu 41566, Republic of Korea
| | - Sangwoo Ryu
- Department of Advanced Materials Engineering, Kyonggi University, Suwon, Gyeonggi-do 16227, Republic of Korea
| | - Jihun Oh
- Department of Materials Science and Engineering, Korea Advanced Institute of Science and Technology, Daejeon 34113, Republic of Korea and Graduate School of Energy, Environment, Water, and Sustainability (EEWS), Korea Advanced Institute of Science and Technology, Daejeon 34141, Republic of Korea
| | - Sanghan Lee
- School of Materials Science and Engineering, Gwangju Institute of Science and Technology, Gwangju 61005, Republic of Korea.
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17
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Wang Y, Wang H, Woldu AR, Zhang X, He T. Optimization of charge behavior in nanoporous CuBi2O4 photocathode for photoelectrochemical reduction of CO2. Catal Today 2019. [DOI: 10.1016/j.cattod.2018.12.047] [Citation(s) in RCA: 24] [Impact Index Per Article: 4.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/27/2022]
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18
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Yang W, Moon J. Recent Advances in Earth-Abundant Photocathodes for Photoelectrochemical Water Splitting. CHEMSUSCHEM 2019; 12:1889-1899. [PMID: 30102017 DOI: 10.1002/cssc.201801554] [Citation(s) in RCA: 32] [Impact Index Per Article: 6.4] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 07/10/2018] [Revised: 08/11/2018] [Indexed: 06/08/2023]
Abstract
The conversion of solar energy into hydrogen through photoelectrochemical (PEC) water splitting is an attractive way to store renewable energy. Despite the intriguing concept of solar hydrogen production, efficient PEC devices based on earth-abundant semiconductors should be realized to compete economically with conventional steam reforming processes. Herein, recent milestones in photocathode development for PEC water splitting, particularly in earth-abundant semiconductors, in terms of new techniques for enhancing performance, as well as theoretical aspects, are highlighted. In addition, recent research into newly emerging low-cost p-type semiconductors in the PEC field, such as Cu2 BaSn(S,Se)4 and Sb2 Se3 , are scrutinized and the advantages and disadvantages of each material assessed.
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Affiliation(s)
- Wooseok Yang
- Department of Materials Science and Engineering, Yonsei University, 50 Yonsei-ro, Seodaemun-gu, Seoul, 03722, Republic of Korea
| | - Jooho Moon
- Department of Materials Science and Engineering, Yonsei University, 50 Yonsei-ro, Seodaemun-gu, Seoul, 03722, Republic of Korea
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19
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Jang YJ, Lee JS. Photoelectrochemical Water Splitting with p-Type Metal Oxide Semiconductor Photocathodes. CHEMSUSCHEM 2019; 12:1835-1845. [PMID: 30614648 DOI: 10.1002/cssc.201802596] [Citation(s) in RCA: 27] [Impact Index Per Article: 5.4] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 11/11/2018] [Revised: 12/24/2018] [Indexed: 06/09/2023]
Abstract
Photoelectrochemical (PEC) water splitting is a promising way to produce clean and sustainable hydrogen fuel. Solar hydrogen production by using p-type metal oxide semiconductor photocathodes has not been studied as extensively as that with n-type metal oxide semiconductor photoanodes and p-type photovoltaic-grade non-oxide semiconductor photocathodes. Copper-based oxide photocathodes show relatively good conductivity, but suffer from instability in aqueous solution under illumination, whereas iron-based metal oxide photocathodes demonstrate more stable PEC performance but have problems in charge separation and transport. Herein, an overview of recent progress in p-type metal oxide-based photocathodes for PEC water reduction is provided. Although these materials have not been fully developed to reach their potential performance, the challenges involved have been identified and strategies to overcome these limitations have been proposed. Future research in this field should address these issues and challenges in addition to the discovery of new materials.
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Affiliation(s)
- Youn Jeong Jang
- Department of Energy Engineering, School of Energy & Chemical Engineering, Ulsan National Institute of Science and Technology (UNIST), Ulsan, 44919, South Korea
| | - Jae Sung Lee
- Department of Energy Engineering, School of Energy & Chemical Engineering, Ulsan National Institute of Science and Technology (UNIST), Ulsan, 44919, South Korea
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20
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Akagi D, Kageshima Y, Hashizume Y, Aoi S, Sasaki Y, Kaneko H, Higashi T, Hisatomi T, Katayama M, Minegishi T, Noda S, Domen K. A Semitransparent Nitride Photoanode Responsive up to
λ
=600 nm Based on a Carbon Nanotube Thin Film Electrode. CHEMPHOTOCHEM 2019. [DOI: 10.1002/cptc.201900061] [Citation(s) in RCA: 11] [Impact Index Per Article: 2.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/10/2022]
Affiliation(s)
- Daijiro Akagi
- Department of Chemical System Engineering The University of Tokyo 7-3-1 Hongo, Bunkyo-ku Tokyo 113-8656 Japan
| | - Yosuke Kageshima
- Department of Chemical System Engineering The University of Tokyo 7-3-1 Hongo, Bunkyo-ku Tokyo 113-8656 Japan
- Current affiliation: Department of Materials Chemistry Shinshu University 4-17-1 Wakasato Nagano 380-8553 Japan
| | - Yuta Hashizume
- Department of Applied Chemistry Waseda University 3-4-1 Okubo, Shinjuku-ku Tokyo 169-8555 Japan
| | - Shigeki Aoi
- Department of Applied Chemistry Waseda University 3-4-1 Okubo, Shinjuku-ku Tokyo 169-8555 Japan
| | - Yutaka Sasaki
- Department of Chemical System Engineering The University of Tokyo 7-3-1 Hongo, Bunkyo-ku Tokyo 113-8656 Japan
| | - Hiroyuki Kaneko
- Department of Chemical System Engineering The University of Tokyo 7-3-1 Hongo, Bunkyo-ku Tokyo 113-8656 Japan
| | - Tomohiro Higashi
- Department of Chemical System Engineering The University of Tokyo 7-3-1 Hongo, Bunkyo-ku Tokyo 113-8656 Japan
| | - Takashi Hisatomi
- Department of Chemical System Engineering The University of Tokyo 7-3-1 Hongo, Bunkyo-ku Tokyo 113-8656 Japan
- Current affiliation: Research Initiative for Supra-Materials Shinshu University 4-17-1, Wakasato Nagano 380-8553 Japan
| | - Masao Katayama
- Department of Chemical System Engineering The University of Tokyo 7-3-1 Hongo, Bunkyo-ku Tokyo 113-8656 Japan
| | - Tsutomu Minegishi
- Department of Chemical System Engineering The University of Tokyo 7-3-1 Hongo, Bunkyo-ku Tokyo 113-8656 Japan
- JST PRESTO 7-3-1 Hongo, Bunkyo-ku Tokyo 113-8656 Japan
| | - Suguru Noda
- Department of Applied Chemistry Waseda University 3-4-1 Okubo, Shinjuku-ku Tokyo 169-8555 Japan
| | - Kazunari Domen
- Department of Chemical System Engineering The University of Tokyo 7-3-1 Hongo, Bunkyo-ku Tokyo 113-8656 Japan
- Research Initiative for Supra-Materials Shinshu University 4-17-1, Wakasato Nagano 380-8553 Japan
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21
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Lee WH, Kang J, Park HS, Nam KM, Cho SK. Photoelectrochemical response of Au-decorated CuBi2O4 photocathode in bicarbonate solution. J Electroanal Chem (Lausanne) 2019. [DOI: 10.1016/j.jelechem.2019.02.055] [Citation(s) in RCA: 8] [Impact Index Per Article: 1.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/27/2022]
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22
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Kim NW, Choi BU, Yu H, Ryu S, Oh J. Formation of high-density CuBi 2O 4 thin film photocathodes with polyvinylpyrrolidone-metal interaction. OPTICS EXPRESS 2019; 27:A171-A183. [PMID: 30876070 DOI: 10.1364/oe.27.00a171] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Received: 10/31/2018] [Accepted: 01/19/2019] [Indexed: 06/09/2023]
Abstract
We present a polymer-assisted spin coating process used to fabricate high-density p-type CuBi2O4 (CBO) thin films. Polyvinylpyrrolidone (PVP) is introduced in the precursor solutions in order to promote uniform nucleation of CBO and prevent formation of the secondary phase, such as Bi2O3, by Bi3+ ion hydrolysis. Slow PVP molecule decomposition during the two-step annealing process, with a 1 M/0.5 M (Bi3+/Cu2+) metal ion concentration, enables optimum contact at the CBO/substrate interface by avoiding formation of voids. This resulted in the formation of non-porous, compact CBO thin films. The highest current density of the photoelectrochemical (PEC) oxygen reduction reaction is obtained with non-porous, compact CBO thin films due to unimpeded charge transport through the CBO bulk, as well as across the interface. When combined with silicon, the high-density CBO thin film investigated in this work is expected to provide new PEC tandem cell options to use for solar applications.
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23
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Bae S, Jang JE, Lee HW, Ryu J. Tailored Assembly of Molecular Water Oxidation Catalysts on Photoelectrodes for Artificial Photosynthesis. Eur J Inorg Chem 2019. [DOI: 10.1002/ejic.201801328] [Citation(s) in RCA: 14] [Impact Index Per Article: 2.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/24/2023]
Affiliation(s)
- Sanghyun Bae
- Department of Energy Engineering; School of Energy and Chemical Engineering; Ulsan National Institute of Science and Technology (UNIST); 50 UNIST-gil Ulsan 44919 Republic of Korea
| | - Ji-Eun Jang
- Department of Energy Engineering; School of Energy and Chemical Engineering; Ulsan National Institute of Science and Technology (UNIST); 50 UNIST-gil Ulsan 44919 Republic of Korea
| | - Hyun-Wook Lee
- Department of Energy Engineering; School of Energy and Chemical Engineering; Ulsan National Institute of Science and Technology (UNIST); 50 UNIST-gil Ulsan 44919 Republic of Korea
| | - Jungki Ryu
- Department of Energy Engineering; School of Energy and Chemical Engineering; Ulsan National Institute of Science and Technology (UNIST); 50 UNIST-gil Ulsan 44919 Republic of Korea
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24
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Lai YH, Lin KC, Yen CY, Jiang BJ. A tandem photoelectrochemical water splitting cell consisting of CuBi2O4 and BiVO4 synthesized from a single Bi4O5I2 nanosheet template. Faraday Discuss 2019; 215:297-312. [DOI: 10.1039/c8fd00183a] [Citation(s) in RCA: 19] [Impact Index Per Article: 3.8] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/13/2023]
Abstract
A bias-free tandem photoelectrochemical water splitting cell consisting of a CuBi2O4 photocathode and a BiVO4 photoanode synthesized from a single Bi4O5I2 template.
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Affiliation(s)
- Yi-Hsuan Lai
- Department of Materials and Optoelectronic Science
- National Sun Yat-sen University
- Kaohsiung 80424
- Taiwan
| | - Kai-Che Lin
- Department of Materials and Optoelectronic Science
- National Sun Yat-sen University
- Kaohsiung 80424
- Taiwan
| | - Chen-Yang Yen
- Department of Materials and Optoelectronic Science
- National Sun Yat-sen University
- Kaohsiung 80424
- Taiwan
| | - Bo-Jyun Jiang
- Department of Materials and Optoelectronic Science
- National Sun Yat-sen University
- Kaohsiung 80424
- Taiwan
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25
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Zhao S, Dong Y, Wang G, Jiang P, Zhang Y, Miao H, Wu X. NiO nanowires as hole-transfer layer for drastic enhancement of CdSe-sensitized photocathodes. NEW J CHEM 2019. [DOI: 10.1039/c9nj00007k] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
Abstract
Grass-like NiO nanowires as a hole-transfer layer to improve light capture efficiency and charge transfer rate for a CdSe-sensitized photocathode.
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Affiliation(s)
- Shuang Zhao
- International Joint Research Center for Photo-responsive Molecules and Materials, School of Chemical and Material Engineering, Jiangnan University
- Wuxi 214122
- P. R. China
| | - Yuming Dong
- International Joint Research Center for Photo-responsive Molecules and Materials, School of Chemical and Material Engineering, Jiangnan University
- Wuxi 214122
- P. R. China
| | - Guangli Wang
- International Joint Research Center for Photo-responsive Molecules and Materials, School of Chemical and Material Engineering, Jiangnan University
- Wuxi 214122
- P. R. China
| | - Pingping Jiang
- International Joint Research Center for Photo-responsive Molecules and Materials, School of Chemical and Material Engineering, Jiangnan University
- Wuxi 214122
- P. R. China
| | - Yuxia Zhang
- International Joint Research Center for Photo-responsive Molecules and Materials, School of Chemical and Material Engineering, Jiangnan University
- Wuxi 214122
- P. R. China
| | - Hongyan Miao
- International Joint Research Center for Photo-responsive Molecules and Materials, School of Chemical and Material Engineering, Jiangnan University
- Wuxi 214122
- P. R. China
| | - Xiuming Wu
- International Joint Research Center for Photo-responsive Molecules and Materials, School of Chemical and Material Engineering, Jiangnan University
- Wuxi 214122
- P. R. China
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26
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Yang W, Prabhakar RR, Tan J, Tilley SD, Moon J. Strategies for enhancing the photocurrent, photovoltage, and stability of photoelectrodes for photoelectrochemical water splitting. Chem Soc Rev 2019; 48:4979-5015. [DOI: 10.1039/c8cs00997j] [Citation(s) in RCA: 230] [Impact Index Per Article: 46.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/22/2022]
Abstract
In this review, we survey recent strategies for photoelectrode optimization and advanced characterization methods towards efficient water splitting cells via feedback from these characterization methods.
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Affiliation(s)
- Wooseok Yang
- Department of Materials Science and Engineering
- Yonsei University
- 03722 Seoul
- Republic of Korea
| | | | - Jeiwan Tan
- Department of Materials Science and Engineering
- Yonsei University
- 03722 Seoul
- Republic of Korea
| | - S. David Tilley
- Department of Chemistry
- University of Zurich
- 8057 Zurich
- Switzerland
| | - Jooho Moon
- Department of Materials Science and Engineering
- Yonsei University
- 03722 Seoul
- Republic of Korea
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27
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Wang Y, Zhan S, Ahlquist MSG. Nucleophilic Attack by OH2 or OH–: A Detailed Investigation on pH-Dependent Performance of a Ru Catalyst. Organometallics 2018. [DOI: 10.1021/acs.organomet.8b00544] [Citation(s) in RCA: 6] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/30/2022]
Affiliation(s)
- Ying Wang
- Department of Theoretical Chemistry & Biology, School of Engineering Sciences in Chemistry Biotechnology and Health, KTH Royal Institute of Technology, 10691 Stockholm, Sweden
| | - Shaoqi Zhan
- Department of Theoretical Chemistry & Biology, School of Engineering Sciences in Chemistry Biotechnology and Health, KTH Royal Institute of Technology, 10691 Stockholm, Sweden
| | - Mårten S. G. Ahlquist
- Department of Theoretical Chemistry & Biology, School of Engineering Sciences in Chemistry Biotechnology and Health, KTH Royal Institute of Technology, 10691 Stockholm, Sweden
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28
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Zhang K, Lv S, Lu M, Tang D. Photoelectrochemical biosensing of disease marker on p-type Cu-doped Zn 0.3Cd 0.7S based on RCA and exonuclease III amplification. Biosens Bioelectron 2018; 117:590-596. [PMID: 30005378 DOI: 10.1016/j.bios.2018.07.001] [Citation(s) in RCA: 46] [Impact Index Per Article: 7.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/15/2018] [Revised: 06/09/2018] [Accepted: 07/01/2018] [Indexed: 01/03/2023]
Abstract
In this work, a new "signal-on" split-type photoelectrochemical (PEC) sensing platform for prostate-specific antigen (PSA) detection was successfully constructed using p-type Cu-doped Zn0.3Cd0.7S as the photosensitive semiconductor material and target-triggered rolling circle amplification (RCA) for signal amplification. The signal derived from Cu-doped Zn0.3Cd0.7S was amplified by hemin/G-quadruplex. Upon target PSA introduction, the aptamer-primer probe (apt-pri) was captured by capture antibody-conjugated magnetic bead (MB-mAb) to form the sandwiched MB-mAb/PSA/apt-pri. The complex could initiate the RCA reaction to produce a long single-stranded DNA that provided binding sites for G-rich DNA and to form long single-stranded DNA/G-quadruplex/hemin. Upon the addition of exonuclease III (Exo III), the hemin/G-quadruplex immobilized on the RCA long product could be released by the digestion of Exo III. The hemin/G-quadruplex complexes in this study were used as efficient electron acceptors to neutralize the photoelectrons generated from the semiconductor and hindered the recombination of charges, thus enhancing the photocurrent. Under the optimum conditions, the developed sensing system displayed a good analytical performance with a linear range of 0.05-40 ng mL-1 PSA and a detection limit of 16.3 pg mL-1. Furthermore, good selectivity, high anti-interference ability, satisfactory reproducibility, and good accuracy were also achieved. These prominent analytical properties revealed that our strategy might be a potential and reliable tool for the detection of PSA.
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Affiliation(s)
- Kangyao Zhang
- Key Laboratory for Analytical Science of Food Safety and Biology (MOE & Fujian Province), Department of Chemistry, Fuzhou University, Fuzhou 350116, PR China
| | - Shuzhen Lv
- Key Laboratory for Analytical Science of Food Safety and Biology (MOE & Fujian Province), Department of Chemistry, Fuzhou University, Fuzhou 350116, PR China
| | - Minghua Lu
- Institute of Environmental and Analytical Science, School of Chemistry and Chemical Engineering, Henan University, Kaifeng 475004, Henan, PR China.
| | - Dianping Tang
- Key Laboratory for Analytical Science of Food Safety and Biology (MOE & Fujian Province), Department of Chemistry, Fuzhou University, Fuzhou 350116, PR China.
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