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Ramacharyulu PVRK, Lee YH, Kawashima K, Youn DH, Kim JH, Wygant BR, Mullins CB, Kim CW. A phase transition-induced photocathodic p-CuFeO 2 nanocolumnar film by reactive ballistic deposition. NEW J CHEM 2022. [DOI: 10.1039/d1nj04656j] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
Abstract
Vertical nanocolumnar Cu–Fe–O electrodes synthesized by the reactive ballistic deposition technique followed by heat treatment in an Ar atmosphere undergo a switch for conductivity at elevated temperatures.
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Affiliation(s)
- P. V. R. K. Ramacharyulu
- Department of Nanotechnology Engineering, College of Engineering, Pukyong National University, Busan, 48513, Republic of Korea
| | - Yong Ho Lee
- Department of Smart and Green Technology Engineering, Pukyong National University, Busan 48513, Republic of Korea
| | - Kenta Kawashima
- McKetta Department of Chemical Engineering, Department of Chemistry, Texas Materials Institute, Center for Electrochemistry, University of Texas at Austin, Austin, Texas 78712, USA
| | - Duck Hyun Youn
- Department of Chemical Engineering, Kangwon National University, Chuncheon, Gangwon-do 24341, Republic of Korea
| | - Jun-Hyuk Kim
- Korea Technology Finance Corporation (KOTEC), Busan, 48400, Republic of Korea
| | - Bryan R. Wygant
- McKetta Department of Chemical Engineering, Department of Chemistry, Texas Materials Institute, Center for Electrochemistry, University of Texas at Austin, Austin, Texas 78712, USA
| | - C. Buddie Mullins
- McKetta Department of Chemical Engineering, Department of Chemistry, Texas Materials Institute, Center for Electrochemistry, University of Texas at Austin, Austin, Texas 78712, USA
| | - Chang Woo Kim
- Department of Nanotechnology Engineering, College of Engineering, Pukyong National University, Busan, 48513, Republic of Korea
- Department of Smart and Green Technology Engineering, Pukyong National University, Busan 48513, Republic of Korea
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Sohag Z, O’Donnell S, Fuoco L, Maggard PA. A Metastable p-Type Semiconductor as a Defect-Tolerant Photoelectrode. Molecules 2021; 26:6830. [PMID: 34833922 PMCID: PMC8624039 DOI: 10.3390/molecules26226830] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/15/2021] [Revised: 11/05/2021] [Accepted: 11/09/2021] [Indexed: 12/03/2022] Open
Abstract
A p-type Cu3Ta7O19 semiconductor was synthesized using a CuCl flux-based approach and investigated for its crystalline structure and photoelectrochemical properties. The semiconductor was found to be metastable, i.e., thermodynamically unstable, and to slowly oxidize at its surfaces upon heating in air, yielding CuO as nano-sized islands. However, the bulk crystalline structure was maintained, with up to 50% Cu(I)-vacancies and a concomitant oxidation of the Cu(I) to Cu(II) cations within the structure. Thermogravimetric and magnetic susceptibility measurements showed the formation of increasing amounts of Cu(II) cations, according to the following reaction: Cu3Ta7O19 + x/2 O2 → Cu(3-x)Ta7O19 + x CuO (surface) (x = 0 to ~0.8). With minor amounts of surface oxidation, the cathodic photocurrents of the polycrystalline films increase significantly, from <0.1 mA cm-2 up to >0.5 mA cm-2, under visible-light irradiation (pH = 6.3; irradiant powder density of ~500 mW cm-2) at an applied bias of -0.6 V vs. SCE. Electronic structure calculations revealed that its defect tolerance arises from the antibonding nature of its valence band edge, with the formation of defect states in resonance with the valence band, rather than as mid-gap states that function as recombination centers. Thus, the metastable Cu(I)-containing semiconductor was demonstrated to possess a high defect tolerance, which facilitates its high cathodic photocurrents.
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Affiliation(s)
| | | | | | - Paul A. Maggard
- Department of Chemistry, North Carolina State University, Raleigh, NC 27609-8204, USA; (Z.S.); (S.O.); (L.F.)
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3
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Qin H, He Y, Xu P, Huang D, Wang Z, Wang H, Wang Z, Zhao Y, Tian Q, Wang C. Spinel ferrites (MFe 2O 4): Synthesis, improvement and catalytic application in environment and energy field. Adv Colloid Interface Sci 2021; 294:102486. [PMID: 34274724 DOI: 10.1016/j.cis.2021.102486] [Citation(s) in RCA: 44] [Impact Index Per Article: 14.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/29/2021] [Revised: 07/03/2021] [Accepted: 07/06/2021] [Indexed: 12/20/2022]
Abstract
To develop efficient catalysts is one of the major ways to solve the energy and environmental problems. Spinel ferrites, with the general chemical formula of MFe2O4 (where M = Mg2+, Co2+, Ni2+, Zn2+, Fe2+, Mn2+, etc.), have attracted considerable attention in catalytic research. The flexible position and valence variability of metal cations endow spinel ferrites with diverse physicochemical properties, such as abundant surface active sites, high catalytic activity and easy to be modified. Meanwhile, their unique advantages in regenerating and recycling on account of the magnetic performances facilitate their practical application potential. Herein, the conventional as well as green chemistry synthesis of spinel ferrites is reviewed. Most importantly, the critical pathways to improve the catalytic performance are discussed in detail, mainly covering selective doping, site substitution, structure reversal, defect introduction and coupled composites. Furthermore, the catalytic applications of spinel ferrites and their derivative composites are exclusively reviewed, including Fenton-type catalysis, photocatalysis, electrocatalysis and photoelectro-chemical catalysis. In addition, some vital remarks, including toxicity, recovery and reuse, are also covered. Future applications of spinel ferrites are envisioned focusing on environmental and energy issues, which will be pushed by the development of precise synthesis, skilled modification and advanced characterization along with emerging theoretical calculation.
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Affiliation(s)
- Hong Qin
- College of Environmental Science and Engineering, Hunan University, Changsha 410082, PR China; Key Laboratory of Environmental Biology and Pollution Control, Ministry of Education, Hunan University, Changsha 410082, PR China
| | - Yangzhuo He
- College of Environmental Science and Engineering, Hunan University, Changsha 410082, PR China; Key Laboratory of Environmental Biology and Pollution Control, Ministry of Education, Hunan University, Changsha 410082, PR China
| | - Piao Xu
- College of Environmental Science and Engineering, Hunan University, Changsha 410082, PR China; Key Laboratory of Environmental Biology and Pollution Control, Ministry of Education, Hunan University, Changsha 410082, PR China..
| | - Danlian Huang
- College of Environmental Science and Engineering, Hunan University, Changsha 410082, PR China; Key Laboratory of Environmental Biology and Pollution Control, Ministry of Education, Hunan University, Changsha 410082, PR China..
| | - Ziwei Wang
- College of Environmental Science and Engineering, Hunan University, Changsha 410082, PR China; Key Laboratory of Environmental Biology and Pollution Control, Ministry of Education, Hunan University, Changsha 410082, PR China
| | - Han Wang
- College of Environmental Science and Engineering, Hunan University, Changsha 410082, PR China; Key Laboratory of Environmental Biology and Pollution Control, Ministry of Education, Hunan University, Changsha 410082, PR China
| | - Zixuan Wang
- College of Environmental Science and Engineering, Hunan University, Changsha 410082, PR China; Key Laboratory of Environmental Biology and Pollution Control, Ministry of Education, Hunan University, Changsha 410082, PR China
| | - Yin Zhao
- College of Environmental Science and Engineering, Hunan University, Changsha 410082, PR China; Key Laboratory of Environmental Biology and Pollution Control, Ministry of Education, Hunan University, Changsha 410082, PR China
| | - Quyang Tian
- College of Environmental Science and Engineering, Hunan University, Changsha 410082, PR China; Key Laboratory of Environmental Biology and Pollution Control, Ministry of Education, Hunan University, Changsha 410082, PR China
| | - Changlin Wang
- College of Environmental Science and Engineering, Hunan University, Changsha 410082, PR China; Key Laboratory of Environmental Biology and Pollution Control, Ministry of Education, Hunan University, Changsha 410082, PR China
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Yamaguchi A, Sako H, Miyauchi M. Synthesis of CaFe2O4 Nanorod Thin Film Using Molten Salt Method and Analysis of Its Photoelectrochemical Properties. CHEM LETT 2020. [DOI: 10.1246/cl.200558] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/12/2022]
Affiliation(s)
- Akira Yamaguchi
- Tokyo Institute of Technology, 2-12-1 Ookayama, Meguro-ku, Tokyo 152-8552, Japan
| | - Hiroshi Sako
- Tokyo Institute of Technology, 2-12-1 Ookayama, Meguro-ku, Tokyo 152-8552, Japan
| | - Masahiro Miyauchi
- Tokyo Institute of Technology, 2-12-1 Ookayama, Meguro-ku, Tokyo 152-8552, Japan
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5
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Recent Advancements and Future Prospects in Ultrathin 2D Semiconductor-Based Photocatalysts for Water Splitting. Catalysts 2020. [DOI: 10.3390/catal10101111] [Citation(s) in RCA: 16] [Impact Index Per Article: 4.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/15/2022] Open
Abstract
Ultrathin two-dimensional (2D) semiconductor-mediated photocatalysts have shown their compelling potential and have arguably received tremendous attention in photocatalysis because of their superior thickness-dependent physical, chemical, mechanical and optical properties. Although numerous comprehensions about 2D semiconductor photocatalysts have been amassed up to now, low cost efficiency, degradation, kinetics of charge transfer along with recycling are still the big challenges to realize a wide application of 2D semiconductor-based photocatalysis. At present, most photocatalysts still need rare or expensive noble metals to improve the photocatalytic activity, which inhibits their commercial-scale application extremely. Thus, developing less costly, earth-abundant semiconductor-based photocatalysts with efficient conversion of sunlight energy remains the primary challenge. In this review, it begins with a brief description of the general mechanism of overall photocatalytic water splitting. Then a concise overview of different types of 2D semiconductor-mediated photocatalysts is given to figure out the advantages and disadvantages for mentioned semiconductor-based photocatalysis, including the structural property and stability, synthesize method, electrochemical property and optical properties for H2/O2 production half reaction along with overall water splitting. Finally, we conclude this review with a perspective, marked on some remaining challenges and new directions of 2D semiconductor-mediated photocatalysts.
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Ahmed AM, Rabia M, Shaban M. The structure and photoelectrochemical activity of Cr-doped PbS thin films grown by chemical bath deposition. RSC Adv 2020; 10:14458-14470. [PMID: 35498477 PMCID: PMC9051943 DOI: 10.1039/c9ra11042a] [Citation(s) in RCA: 24] [Impact Index Per Article: 6.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/31/2019] [Accepted: 03/21/2020] [Indexed: 12/19/2022] Open
Abstract
Nanocrystalline undoped and Cr-doped PbS thin films were prepared on glass substrates by a simple chemical bath deposition method. The X-ray diffraction analyses of the films showed their polycrystalline nature with cubic structure and preferential growth along the (111) orientation. Cr incorporation decreases the average PbS crystallite size from 59.97 to 37.59 nm, whereas the strain and dislocation density showed an increasing trend. The atomic ratio of doping for Cr is about 0.63, 1.75, and 4.70% according to energy-dispersive X-ray (EDX) spectroscopy. Morphological analysis showed that the average sizes of nanoclusters decreased from 73 to 41 nm as the Cr concentration increased. The optical band gap values are increased with increasing Cr doping. The photoelectrochemical (PEC) behaviors and the stability of the Cr doped PbS photoelectrodes were studied in 0.3 M Na2SO3 electrolyte solution. Also, the incident photon-to-current efficiency and applied bias photon-to-current efficiency are calculated and showed optimized values of 13.5% and 1.44% at 0.68 V and 390 nm. Moreover, the optimized electrode shows high chemical stability and a long lifetime. Finally, the effect of temperature on the PEC behaviors is evaluated and the different thermodynamic parameters are calculated. Nanocrystalline undoped and Cr-doped PbS thin films were prepared on glass substrates by a simple chemical bath deposition method as photoelectrodes for solar water splitting.![]()
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Affiliation(s)
- Ashour M Ahmed
- Nanophotonics and Applications (NPA) Lab, Physics Department, Faculty of Science, Beni-Suef University Salah Salem Street Beni-Suef 62514 Egypt
| | - Mohamed Rabia
- Nanophotonics and Applications (NPA) Lab, Physics Department, Faculty of Science, Beni-Suef University Salah Salem Street Beni-Suef 62514 Egypt .,Polymer Research Laboratory, Chemistry Department, Faculty of Science, Beni-Suef University Beni-Suef 62514 Egypt
| | - Mohamed Shaban
- Nanophotonics and Applications (NPA) Lab, Physics Department, Faculty of Science, Beni-Suef University Salah Salem Street Beni-Suef 62514 Egypt
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Sekizawa K, Oh-ishi K, Morikawa T. Photoelectrochemical water-splitting over a surface modified p-type Cr2O3 photocathode. Dalton Trans 2020; 49:659-666. [DOI: 10.1039/c9dt04296b] [Citation(s) in RCA: 15] [Impact Index Per Article: 3.8] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/27/2022]
Abstract
H2 generation via solar photoelectrochemical water-splitting by Cr2O3 was successfully realized by surface modification with TiO2 and the following Pt deposition.
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8
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Ahmed AM, Mohamed F, Ashraf AM, Shaban M, Aslam Parwaz Khan A, Asiri AM. Enhanced photoelectrochemical water splitting activity of carbon nanotubes@TiO 2 nanoribbons in different electrolytes. CHEMOSPHERE 2020; 238:124554. [PMID: 31421463 DOI: 10.1016/j.chemosphere.2019.124554] [Citation(s) in RCA: 26] [Impact Index Per Article: 6.5] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 05/13/2019] [Revised: 08/01/2019] [Accepted: 08/09/2019] [Indexed: 05/09/2023]
Abstract
Hydrogen production from water splitting by a photocatalytic process is one way that can be used to solve global problems related to energy depletion and environmental pollution. This work aims to design and characterize a novel photocatalyst nanohybrid carbon nanotubes@TiO2 nanoribbons (CNTs@TNRs) for enhanced photoelectrochemical (PEC) water splitting in different electrolytes under visible light irradiance. Here, hydrothermal and chemical vapor deposition (HT-CVD) were combined to grow CNTs @ the nanopits of TNRs producing network of nanohybrid CNTs@TNRs. The structural, morphological, optical, and photocatylatic properties of the TNRs and CNTs@TNRs nanohybrid were characterized by different techniques. The crystallite size is increased from 14.86 nm for TNRs to 21.61 nm for CNTs@TNRs nanohybrid. The CNTs@TNRs nanohybrid has well-resolved nanopits on the surface of the TNRs with an average diameter of 10 nm. The absorption edge of CNTs@TNRs relative to TNRs was strongly shifted to the visible light region. The band gap values are 3.78 and 2.07 eV for TNRs and CNTs@TNRs, respectively. The TNRs and CNTs@TNRs were used for the photocatalytic water splitting under visible light irradiance in Na2S2O3, HCl and KOH electrolytes of different concentrations. The calculated incident photon-to-current conversion efficiency (IPCE) was 97% at 510 nm. These values are higher than those previously reported for different photoelectrodes. The number of hydrogen moles was calculated to be 300 μmol h-1 cm-2. Therefore, our work demonstrates a feasible route for efficient PEC water splitting under sunlight irradiation utilizing the novel CNTs@TNRs photocatalyst.
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Affiliation(s)
- Ashour M Ahmed
- Nanophotonics and Applications (NPA) Lab, Physics Department, Faculty of Science, Beni-Suef University, Beni-Suef, 62514, Egypt
| | - Fatma Mohamed
- Nanophotonics and Applications (NPA) Lab, Physics Department, Faculty of Science, Beni-Suef University, Beni-Suef, 62514, Egypt; Polymer Research Laboratory, Chemistry Department, Faculty of Science, Beni-Suef University, Beni-Suef, 62514, Egypt
| | - Abdallah M Ashraf
- Nanophotonics and Applications (NPA) Lab, Physics Department, Faculty of Science, Beni-Suef University, Beni-Suef, 62514, Egypt; Polymer Research Laboratory, Chemistry Department, Faculty of Science, Beni-Suef University, Beni-Suef, 62514, Egypt
| | - Mohamed Shaban
- Nanophotonics and Applications (NPA) Lab, Physics Department, Faculty of Science, Beni-Suef University, Beni-Suef, 62514, Egypt.
| | - Aftab Aslam Parwaz Khan
- Center of Excellence for Advanced Materials Research and Chemistry Department, Faculty of Science, King Abdulaziz University, Jeddah, 21589, P.O. Box 80203, Saudi Arabia.
| | - Abdullah M Asiri
- Center of Excellence for Advanced Materials Research and Chemistry Department, Faculty of Science, King Abdulaziz University, Jeddah, 21589, P.O. Box 80203, Saudi Arabia
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9
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Ferrite Materials for Photoassisted Environmental and Solar Fuels Applications. Top Curr Chem (Cham) 2019; 378:6. [DOI: 10.1007/s41061-019-0270-3] [Citation(s) in RCA: 22] [Impact Index Per Article: 4.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/07/2019] [Accepted: 11/21/2019] [Indexed: 11/28/2022]
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10
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Lumley MA, Radmilovic A, Jang YJ, Lindberg AE, Choi KS. Perspectives on the Development of Oxide-Based Photocathodes for Solar Fuel Production. J Am Chem Soc 2019; 141:18358-18369. [PMID: 31693356 DOI: 10.1021/jacs.9b07976] [Citation(s) in RCA: 51] [Impact Index Per Article: 10.2] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/12/2022]
Abstract
Photoelectrochemical cells (PECs), which use semiconductor electrodes (photoelectrodes) to absorb solar energy and perform chemical reactions, constitute one of the most attractive strategies to produce chemical fuels using renewable energy sources. Oxide-based photoelectrodes specifically have been intensively investigated for the construction of PECs due to their relatively inexpensive processing costs and better stability in aqueous media compared with other types of photoelectrodes. Although there have been many advancements in the development of oxide-based photoanodes, our understanding of oxide-based photocathodes remains limited. The goal of this Perspective is to examine the recent progress made in the field of oxide-based photocathodes and discuss future research directions. The photocathode systems considered here include binary and ternary Cu-based photocathodes and ternary Fe-based photocathodes. We assessed the characteristics and major advantages and drawbacks of each system and identified the most critical research gaps. The insights and discussions provided in this Perspective will serve as useful resources for the design of future studies, leading to the development of more efficient and practical PECs.
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Affiliation(s)
- Margaret A Lumley
- Department of Chemistry , University of Wisconsin-Madison , Madison , Wisconsin 53706 , United States
| | - Andjela Radmilovic
- Department of Chemistry , University of Wisconsin-Madison , Madison , Wisconsin 53706 , United States
| | - Youn Jeong Jang
- Department of Chemistry , University of Wisconsin-Madison , Madison , Wisconsin 53706 , United States
| | - Ann E Lindberg
- Department of Chemistry , University of Wisconsin-Madison , Madison , Wisconsin 53706 , United States
| | - Kyoung-Shin Choi
- Department of Chemistry , University of Wisconsin-Madison , Madison , Wisconsin 53706 , United States
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11
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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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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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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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14
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In situ fabrication of α-Fe2O3/CaFe2O4 p-n heterojunction with enhanced VOCs photodegradation activity. ADV POWDER TECHNOL 2019. [DOI: 10.1016/j.apt.2018.11.027] [Citation(s) in RCA: 16] [Impact Index Per Article: 3.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/22/2022]
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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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16
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Hajiyani H, Pentcheva R. Surface Termination and Composition Control of Activity of the CoxNi1–xFe2O4(001) Surface for Water Oxidation: Insights from DFT+U Calculations. ACS Catal 2018. [DOI: 10.1021/acscatal.8b00574] [Citation(s) in RCA: 45] [Impact Index Per Article: 7.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/29/2022]
Affiliation(s)
- Hamidreza Hajiyani
- Department of Physics, Theoretical Physics and Center for Nanointegration (CENIDE), University of Duisburg-Essen, Lotharstraße 1, 47057 Duisburg, Germany
| | - Rossitza Pentcheva
- Department of Physics, Theoretical Physics and Center for Nanointegration (CENIDE), University of Duisburg-Essen, Lotharstraße 1, 47057 Duisburg, Germany
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17
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Song Y, Sun Z, Wu Y, Chai Z, Wang X. Investigation of the Preferential Doping Site and Regulating on the Visible Light Response and Redox Performance for Fe- and/or La-Doped InNbO 4. Inorg Chem 2018; 57:8558-8567. [PMID: 29969019 DOI: 10.1021/acs.inorgchem.8b01287] [Citation(s) in RCA: 8] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/30/2022]
Abstract
The preferential doping site, visible light response, and redox potential of Fe- and/or La-doped InNbO4 (INO) were investigated using first-principles density functional theory. Eight designed doping models, including Fe and/or La doping at In or/and Nb sites of INO are constructed, respectively. It was found that Fe-doping and Fe,La-codoping to substitute In into an INO cell are energetically favorable, confirming that the steric hindrance plays a vital role for the selective doping site than the charge of the dopants. Fe doping always formed two impurity bands between the conduction and valence bands, originated from Fe 3d state, inferring the well visible light response. Furthermore, the presence of La has a specific regulation effects for Fe doping although the energy levels of the single La-doped models were completely similar to those of the undoped INO. The electron exchange between La and Fe dopants results in the significant interaction for codoping INO. Importantly, by doping La into INO cell, the redox potentials of Fe-doped INO could be well-regulated. The band potential moved to the more positive energy level of the models Fe-doped at Nb sites, while it shifted to the more negative level if Fe was doped at In site of La-INO. The present investigation may provide the guidance for the designative dopants to construct the photocatalyst with stable, visible response, and good redox performance.
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Affiliation(s)
- Yanyong Song
- Inner Mongolia Key Laboratory of Chemistry and Physics of Rare Earth Materials, College of Chemistry and Chemical Engineering , Inner Mongolia University , Huhhot , Inner Mongolia , PR China
| | - Zhebin Sun
- Inner Mongolia Electric Power Research Institute , Huhhot , Inner Mongolia , PR China
| | - Yuhang Wu
- Inner Mongolia Key Laboratory of Chemistry and Physics of Rare Earth Materials, College of Chemistry and Chemical Engineering , Inner Mongolia University , Huhhot , Inner Mongolia , PR China
| | - Zhanli Chai
- Inner Mongolia Key Laboratory of Chemistry and Physics of Rare Earth Materials, College of Chemistry and Chemical Engineering , Inner Mongolia University , Huhhot , Inner Mongolia , PR China
| | - Xiaojing Wang
- Inner Mongolia Key Laboratory of Chemistry and Physics of Rare Earth Materials, College of Chemistry and Chemical Engineering , Inner Mongolia University , Huhhot , Inner Mongolia , PR China
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18
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Han C, Zhang X, Xu X, Li Q, He Q, Meng J, Wang X, Liu Z, Wu P, Mai L. Porous CaFe 2O 4 as a promising lithium ion battery anode: a trade-off between high capacity and long-term stability. NANOSCALE 2018; 10:12963-12969. [PMID: 29971285 DOI: 10.1039/c8nr03840f] [Citation(s) in RCA: 6] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/08/2023]
Abstract
Metal oxides are considered as attractive candidates as anode materials for lithium ion batteries (LIBs) due to their high capacities compared to commercialized graphite. However, fast capacity fading, which is caused by inherent large volume expansions and agglomeration of active particles upon cycling, is a great challenge. Herein, we propose the design of porous CaFe2O4 electrode material to address the above issue. Compared to pristine iron oxides, CaFe2O4 exhibits a distinct trade-off in terms of high capacity and long-term stability, which is beneficial to the potential practical applications. Such a trade-off effect is attributed to the synergistic effect between the porous structure and the in situ formed CaO nanograins during charging/discharging processes. This work provides an effective strategy in achieving anode materials with high capacity and long-term stability for next-generation LIBs.
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Affiliation(s)
- Chunhua Han
- State Key Laboratory of Advanced Technology for Materials Synthesis and Processing, International School of Materials Science and Engineering, Wuhan University of Technology, Luoshi Road 122, Wuhan, 430070, Hubei, China.
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19
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Balasubramanian P, Settu R, Chen SM, Chen TW, Sharmila G. A new electrochemical sensor for highly sensitive and selective detection of nitrite in food samples based on sonochemical synthesized Calcium Ferrite (CaFe 2O 4) clusters modified screen printed carbon electrode. J Colloid Interface Sci 2018; 524:417-426. [PMID: 29677610 DOI: 10.1016/j.jcis.2018.04.036] [Citation(s) in RCA: 60] [Impact Index Per Article: 10.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/03/2017] [Revised: 04/03/2018] [Accepted: 04/09/2018] [Indexed: 12/16/2022]
Abstract
Herein, we report a novel, disposable electrochemical sensor for the detection of nitrite ions in food samples based on the sonochemical synthesized orthorhombic CaFe2O4 (CFO) clusters modified screen printed electrode. As synthesized CFO clusters were characterized by scanning electron microscopy (SEM), X-ray diffraction (XRD), Fourier transformer infrared spectroscopy (FT-IR), Thermogravimetric analysis (TGA), X-ray photoelectron spectroscopy (XPS), electrochemical impedance spectroscopy (EIS), cyclic voltammetry (CV) and amperometry (i-t). Under optimal condition, the CFO modified electrode displayed a rapid current response to nitrite, a linear response range from 0.016 to 1921 µM associated with a low detection limit 6.6 nM. The suggested sensor also showed the excellent sensitivity of 3.712 μA μM-1 cm-2. Furthermore, a good reproducibility, long-term stability and excellent selectivity were also attained on the proposed sensor. In addition, the practical applicability of the sensor was investigated via meat samples, tap water and drinking water, and showed desirable recovery rate, representing its possibilities for practical application.
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Affiliation(s)
- Paramasivam Balasubramanian
- Department of Chemical Engineering and Biotechnology, National Taipei University of Technology, Taipei 106, Taiwan
| | - Ramki Settu
- Department of Chemical Engineering and Biotechnology, National Taipei University of Technology, Taipei 106, Taiwan; Institute of Biochemical and Biomedical Engineering, National Taipei University of Technology, No. 1, Section 3, Chung-Hsiao East Road, Taipei 106, Taiwan
| | - Shen-Ming Chen
- Department of Chemical Engineering and Biotechnology, National Taipei University of Technology, Taipei 106, Taiwan.
| | - Tse-Wei Chen
- Department of Chemical Engineering and Biotechnology, National Taipei University of Technology, Taipei 106, Taiwan
| | - Ganapathi Sharmila
- School of Chemistry, Bharathidasan University, Tiruchirappalli 620024, Tamil Nadu, India
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20
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Chao MY, Chen J, Young DJ, Zhang WH, Lang JP. Smoothing the single-crystal to single-crystal conversions of a two-dimensional metal–organic framework via the hetero-metal doping of the linear trimetallic secondary building unit. Dalton Trans 2018; 47:13722-13729. [DOI: 10.1039/c8dt02813c] [Citation(s) in RCA: 14] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/24/2022]
Abstract
Doping of Co2+ in the linear Cd3 cluster secondary building units lowers the single-crystal to single-crystal conversion reactivity of the resulting metal–organic framework.
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Affiliation(s)
- Meng-Yao Chao
- College of Chemistry
- Chemical Engineering and Materials Science
- Soochow University
- Suzhou 215123
- China
| | - Jing Chen
- College of Chemistry
- Chemical Engineering and Materials Science
- Soochow University
- Suzhou 215123
- China
| | - David J. Young
- Faculty of Science
- Health
- Education and Engineering
- University of the Sunshine Coast
- Maroochydore
| | - Wen-Hua Zhang
- College of Chemistry
- Chemical Engineering and Materials Science
- Soochow University
- Suzhou 215123
- China
| | - Jian-Ping Lang
- College of Chemistry
- Chemical Engineering and Materials Science
- Soochow University
- Suzhou 215123
- China
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21
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Synthesis of calcium ferrite nanocrystal clusters for magnetorheological fluid with enhanced sedimentation stability. POWDER TECHNOL 2017. [DOI: 10.1016/j.powtec.2017.08.065] [Citation(s) in RCA: 36] [Impact Index Per Article: 5.1] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/23/2022]
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22
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Wu B, Zhang WH, Lang JP. Site-selective homo- and hetero-metallic doping of a 1D Zn-based coordination polymer to enhance the dimensionality and photocurrent responses. CrystEngComm 2016. [DOI: 10.1039/c6ce00187d] [Citation(s) in RCA: 18] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
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23
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Ren B, Huang Y, Han C, Nadagouda MN, Dionysiou DD. Ferrites as Photocatalysts for Water Splitting and Degradation of Contaminants. ACS SYMPOSIUM SERIES 2016. [DOI: 10.1021/bk-2016-1238.ch003] [Citation(s) in RCA: 7] [Impact Index Per Article: 0.9] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 12/24/2022]
Affiliation(s)
- Bangxing Ren
- Environmental Engineering and Science Program, University of Cincinnati, Cincinnati, Ohio 45221-0012, United States
- Department of Mechanical and Materials Engineering, Wright State University, Dayton, Ohio 45324, United States
| | - Ying Huang
- Environmental Engineering and Science Program, University of Cincinnati, Cincinnati, Ohio 45221-0012, United States
- Department of Mechanical and Materials Engineering, Wright State University, Dayton, Ohio 45324, United States
| | - Changseok Han
- Environmental Engineering and Science Program, University of Cincinnati, Cincinnati, Ohio 45221-0012, United States
- Department of Mechanical and Materials Engineering, Wright State University, Dayton, Ohio 45324, United States
| | - Mallikarjuna N. Nadagouda
- Environmental Engineering and Science Program, University of Cincinnati, Cincinnati, Ohio 45221-0012, United States
- Department of Mechanical and Materials Engineering, Wright State University, Dayton, Ohio 45324, United States
| | - Dionysios D. Dionysiou
- Environmental Engineering and Science Program, University of Cincinnati, Cincinnati, Ohio 45221-0012, United States
- Department of Mechanical and Materials Engineering, Wright State University, Dayton, Ohio 45324, United States
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