1
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Hwang KC, Banerjee P, Shanmugam M. Mid-IR Light-Activatable Full Spectrum LaB 6 Plasmonic Photocatalyst. ADVANCED MATERIALS (DEERFIELD BEACH, FLA.) 2024; 36:e2307054. [PMID: 37918970 DOI: 10.1002/adma.202307054] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 07/17/2023] [Revised: 10/20/2023] [Indexed: 11/04/2023]
Abstract
Photocatalysts as long-lasting, benign reagents for disinfection of bacteria in hospitals and public areas/facilities/transportation vehicles are strongly needed. A common limitation for all existing semiconductor photocatalysts is the requirement of activation by external UV-vis-near-infrared (NIR) light with wavelengths shorter than ≈1265 nm. None of the existing photocatalysts can function during nighttime in the absence of external light. Herein, an unprecedented LaB6 plasmonic photocatalyst is reported, which can absorb UV-vis-NIR light and mid-IR (3900 nm) light to split water and generate hydrogen and hydroxyl radicals for the decomposition of organic pollutants, as well as kill multidrug-resistant Escherichia coli bacteria. Mid-IR light (≈2-50 µm) is readily available from the natural environments via thermal radiation of warm/hot objects on the earth including human bodies, animals, furnances, hot/warm electrical devices, and buildings.
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Affiliation(s)
- Kuo Chu Hwang
- Department of Chemistry, National Tsing Hua University, Hsinchu, 30013, Taiwan
| | - Payal Banerjee
- Department of Chemistry, National Tsing Hua University, Hsinchu, 30013, Taiwan
| | - Munusamy Shanmugam
- Department of Chemistry, National Tsing Hua University, Hsinchu, 30013, Taiwan
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2
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Joshi G, Saha A, Dutta A, Khatua S. NIR-Driven Photocatalytic Hydrogen Production by Silane- and Tertiary Amine-Bound Plasmonic Gold Nanoprisms. ACS APPLIED MATERIALS & INTERFACES 2022; 14:38815-38823. [PMID: 35980736 DOI: 10.1021/acsami.2c10152] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/15/2023]
Abstract
Near-infrared (NIR) photon-driven H2 production from water is regarded as one of the best routes for establishing a sustainable hydrogen-based energy economy. Here, we have developed a gold nanoprism-based photocatalytic assembly, rationally capped with an amine and a silane ligand pair, which exhibited an excellent H2 production rate (146 μL mg-1 h-1) in neutral water while achieving an absolute incident photon-to-hydrogen conversion efficiency of 0.53%. An array of spectroscopic and microscopic experiments unravel that the amine ligand scavenges the hot hole while the silane aids the H2 production via hydrolysis during the photocatalysis on the plasmon surface. This photocatalytic H2 production reactivity can be retained for multiple cycles following the replenishment of amine and silane. Hence, this photocatalytic assembly can set up the template for a large-scale NIR-driven H2 production unit.
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Affiliation(s)
- Gayatri Joshi
- Chemistry Discipline, Indian Institute of Technology Gandhinagar, Palaj, Gujarat 382355, India
| | - Avishek Saha
- CSIR-Central Scientific Instruments Organization (CSIR-CSIO), Chandigarh 160030, India
- Academy of Scientific and Innovative Research (AcSIR), Ghaziabad 201002, India
| | - Arnab Dutta
- Chemistry Department, Indian Institute of Technology Bombay, Powai, Maharashtra 400076, India
- Interdisciplinary Program in Climate Studies, Indian Institute of Technology Bombay, Powai, Maharashtra 400076, India
- National Center of Excellence-CCUS, Indian Institute of Technology Bombay, Powai, Maharashtra 400076, India
| | - Saumyakanti Khatua
- Chemistry Discipline, Indian Institute of Technology Gandhinagar, Palaj, Gujarat 382355, India
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3
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Wang D, Xu Z, Sheridan MV, Concepcion JJ, Li F, Lian T, Meyer TJ. Photodriven water oxidation initiated by a surface bound chromophore-donor-catalyst assembly. Chem Sci 2021; 12:14441-14450. [PMID: 34880995 PMCID: PMC8580115 DOI: 10.1039/d1sc03896f] [Citation(s) in RCA: 9] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/17/2021] [Accepted: 10/10/2021] [Indexed: 12/03/2022] Open
Abstract
In photosynthesis, solar energy is used to produce solar fuels in the form of new chemical bonds. A critical step to mimic photosystem II (PS II), a key protein in nature's photosynthesis, for artificial photosynthesis is designing devices for efficient light-driven water oxidation. Here, we describe a single molecular assembly electrode that duplicates the key components of PSII. It consists of a polypyridyl light absorber, chemically linked to an intermediate electron donor, with a molecular-based water oxidation catalyst on a SnO2/TiO2 core/shell electrode. The synthetic device mimics PSII in achieving sustained, light-driven water oxidation catalysis. It highlights the value of the tyrosine–histidine pair in PSII in achieving efficient water oxidation catalysis in artificial photosynthetic devices. We describe a single molecular assembly electrode that mimics PSII. Flash photolysis revealed the electron transfer steps between chromophore light absorption and the creation and storage of redox equivalents in the catalyst for water oxidation.![]()
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Affiliation(s)
- Degao Wang
- Engineering Laboratory of Advanced Energy Materials, Ningbo Institute of Industrial Technology, Chinese Academy of Sciences Ningbo Zhejiang 315201 China .,Qianwan Institute of CNiTECH Zhongchuangyi Road, Hangzhou Bay District Ningbo Zhejiang 315336 China.,Department of Chemistry, University of North Carolina at Chapel Hill Chapel Hill NC 27599 USA
| | - Zihao Xu
- Department of Chemistry, Emory University Atlanta GA 30322 USA
| | - Matthew V Sheridan
- Department of Chemistry, University of North Carolina at Chapel Hill Chapel Hill NC 27599 USA
| | | | - Fei Li
- State Key Laboratory of Fine Chemicals, Dalian University of Technology Dalian 116024 China
| | - Tianquan Lian
- Department of Chemistry, Emory University Atlanta GA 30322 USA
| | - Thomas J Meyer
- Department of Chemistry, University of North Carolina at Chapel Hill Chapel Hill NC 27599 USA
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4
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Zhao Y, Zhang L, Liu J, Adair K, Zhao F, Sun Y, Wu T, Bi X, Amine K, Lu J, Sun X. Atomic/molecular layer deposition for energy storage and conversion. Chem Soc Rev 2021; 50:3889-3956. [PMID: 33523063 DOI: 10.1039/d0cs00156b] [Citation(s) in RCA: 35] [Impact Index Per Article: 11.7] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/13/2023]
Abstract
Energy storage and conversion systems, including batteries, supercapacitors, fuel cells, solar cells, and photoelectrochemical water splitting, have played vital roles in the reduction of fossil fuel usage, addressing environmental issues and the development of electric vehicles. The fabrication and surface/interface engineering of electrode materials with refined structures are indispensable for achieving optimal performances for the different energy-related devices. Atomic layer deposition (ALD) and molecular layer deposition (MLD) techniques, the gas-phase thin film deposition processes with self-limiting and saturated surface reactions, have emerged as powerful techniques for surface and interface engineering in energy-related devices due to their exceptional capability of precise thickness control, excellent uniformity and conformity, tunable composition and relatively low deposition temperature. In the past few decades, ALD and MLD have been intensively studied for energy storage and conversion applications with remarkable progress. In this review, we give a comprehensive summary of the development and achievements of ALD and MLD and their applications for energy storage and conversion, including batteries, supercapacitors, fuel cells, solar cells, and photoelectrochemical water splitting. Moreover, the fundamental understanding of the mechanisms involved in different devices will be deeply reviewed. Furthermore, the large-scale potential of ALD and MLD techniques is discussed and predicted. Finally, we will provide insightful perspectives on future directions for new material design by ALD and MLD and untapped opportunities in energy storage and conversion.
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Affiliation(s)
- Yang Zhao
- Department of Mechanical & Materials Engineering, University of Western Ontario, London, ON N6A 5B9, Canada.
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5
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Wang D, Farnum BH, Dares CJ, Meyer TJ. Chemical approaches to artificial photosynthesis: A molecular, dye-sensitized photoanode for O2 production prepared by layer-by-layer self-assembly. J Chem Phys 2020; 152:244706. [DOI: 10.1063/5.0007383] [Citation(s) in RCA: 6] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/30/2022] Open
Affiliation(s)
- Degao Wang
- Department of Chemistry, University of North Carolina at Chapel Hill, Chapel Hill, North Carolina 27599-3290, USA
| | - Byron H. Farnum
- Department of Chemistry and Biochemistry, Auburn University, Auburn, Alabama 36849, USA
| | - Christopher J. Dares
- Department of Chemistry and Biochemistry, Florida International University, 11200 SW 8th St., Miami, Florida 33199, USA
| | - Thomas J. Meyer
- Department of Chemistry, University of North Carolina at Chapel Hill, Chapel Hill, North Carolina 27599-3290, USA
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6
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Wang D, Hu J, Sherman BD, Sheridan MV, Yan L, Dares CJ, Zhu Y, Li F, Huang Q, You W, Meyer TJ. A molecular tandem cell for efficient solar water splitting. Proc Natl Acad Sci U S A 2020; 117:13256-13260. [PMID: 32482883 PMCID: PMC7306789 DOI: 10.1073/pnas.2001753117] [Citation(s) in RCA: 21] [Impact Index Per Article: 5.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/18/2022] Open
Abstract
Artificial photosynthesis provides a way to store solar energy in chemical bonds. Achieving water splitting without an applied external potential bias provides the key to artificial photosynthetic devices. We describe here a tandem photoelectrochemical cell design that combines a dye-sensitized photoelectrosynthesis cell (DSPEC) and an organic solar cell (OSC) in a photoanode for water oxidation. When combined with a Pt electrode for H2 evolution, the electrode becomes part of a combined electrochemical cell for water splitting, 2H2O → O2 + 2H2, by increasing the voltage of the photoanode sufficiently to drive bias-free reduction of H+ to H2 The combined electrode gave a 1.5% solar conversion efficiency for water splitting with no external applied bias, providing a mimic for the tandem cell configuration of PSII in natural photosynthesis. The electrode provided sustained water splitting in the molecular photoelectrode with sustained photocurrent densities of 1.24 mA/cm2 for 1 h under 1-sun illumination with no applied bias.
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Affiliation(s)
- Degao Wang
- Engineering Laboratory of Advanced Energy Materials, Ningbo Institute of Industrial Technology, Chinese Academy of Sciences, 315201 Ningbo, Zhejiang, China;
- Ningbo Institute of Materials Technology and Engineering, Chinese Academy of Sciences, 315336 Ningbo, Zhejiang, China
- Department of Chemistry, University of North Carolina at Chapel Hill, Chapel Hill, NC 27599
| | - Jun Hu
- Department of Chemistry, University of North Carolina at Chapel Hill, Chapel Hill, NC 27599
| | - Benjamin D Sherman
- Department of Chemistry, Texas Christian University, Fort Worth, TX 76129
| | - Matthew V Sheridan
- Department of Chemistry, University of North Carolina at Chapel Hill, Chapel Hill, NC 27599
| | - Liang Yan
- Department of Chemistry, University of North Carolina at Chapel Hill, Chapel Hill, NC 27599
| | - Christopher J Dares
- Department of Chemistry and Biochemistry, Florida International University, Miami, FL 33199
| | - Yong Zhu
- State Key Laboratory of Fine Chemicals, Dalian University of Technology, 116024 Dalian, China
| | - Fei Li
- State Key Laboratory of Fine Chemicals, Dalian University of Technology, 116024 Dalian, China
| | - Qing Huang
- Engineering Laboratory of Advanced Energy Materials, Ningbo Institute of Industrial Technology, Chinese Academy of Sciences, 315201 Ningbo, Zhejiang, China
- Ningbo Institute of Materials Technology and Engineering, Chinese Academy of Sciences, 315336 Ningbo, Zhejiang, China
| | - Wei You
- Department of Chemistry, University of North Carolina at Chapel Hill, Chapel Hill, NC 27599;
| | - Thomas J Meyer
- Department of Chemistry, University of North Carolina at Chapel Hill, Chapel Hill, NC 27599;
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7
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Li G, Zhu D, Wang X, Su Z, Bryce MR. Dinuclear metal complexes: multifunctional properties and applications. Chem Soc Rev 2020; 49:765-838. [DOI: 10.1039/c8cs00660a] [Citation(s) in RCA: 88] [Impact Index Per Article: 22.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/02/2023]
Abstract
Dinuclear metal complexes have enabled breakthroughs in OLEDs, photocatalytic water splitting and CO2reduction, DSPEC, chemosensors, biosensors, PDT and smart materials.
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Affiliation(s)
- Guangfu Li
- Department of Chemistry
- Northeast Normal University
- Changchun
- P. R. China
| | - Dongxia Zhu
- Department of Chemistry
- Northeast Normal University
- Changchun
- P. R. China
| | - Xinlong Wang
- Department of Chemistry
- Northeast Normal University
- Changchun
- P. R. China
| | - Zhongmin Su
- Department of Chemistry
- Northeast Normal University
- Changchun
- P. R. China
- School of Chemistry and Environmental Engineering
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8
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Wang D, Sampaio RN, Troian-Gautier L, Marquard SL, Farnum BH, Sherman BD, Sheridan MV, Dares CJ, Meyer GJ, Meyer TJ. Molecular Photoelectrode for Water Oxidation Inspired by Photosystem II. J Am Chem Soc 2019; 141:7926-7933. [DOI: 10.1021/jacs.9b02548] [Citation(s) in RCA: 32] [Impact Index Per Article: 6.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/21/2022]
Affiliation(s)
- Degao Wang
- Department of Chemistry, University of North Carolina at Chapel Hill, Chapel Hill, North Carolina 27599-3290, United States
| | - Renato N. Sampaio
- Department of Chemistry, University of North Carolina at Chapel Hill, Chapel Hill, North Carolina 27599-3290, United States
| | - Ludovic Troian-Gautier
- Department of Chemistry, University of North Carolina at Chapel Hill, Chapel Hill, North Carolina 27599-3290, United States
| | - Seth L. Marquard
- Department of Chemistry, University of North Carolina at Chapel Hill, Chapel Hill, North Carolina 27599-3290, United States
| | - Byron H. Farnum
- Department of Chemistry and Biochemistry, Auburn University, Auburn, Alabama 36849, United States
| | - Benjamin D. Sherman
- Department of Chemistry, Texas Christian University, Fort Worth, Texas 76129, United States
| | - Matthew V. Sheridan
- Department of Chemistry, University of North Carolina at Chapel Hill, Chapel Hill, North Carolina 27599-3290, United States
| | - Christopher J. Dares
- Department of Chemistry and Biochemistry, Florida International University, 11200 SW 8th Street, Miami, Florida 33199, United States
| | - Gerald J. Meyer
- Department of Chemistry, University of North Carolina at Chapel Hill, Chapel Hill, North Carolina 27599-3290, United States
| | - Thomas J. Meyer
- Department of Chemistry, University of North Carolina at Chapel Hill, Chapel Hill, North Carolina 27599-3290, United States
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9
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Tang J, Xiong P, Cheng Y, Chen Y, Peng S, Zhu ZQ. Enzymatic oxydate-triggered AgNPs etching: A novel signal-on photoelectrochemical immunosensing platform based on Ag@AgCl nanocubes loaded RGO plasmonic heterostructure. Biosens Bioelectron 2019; 130:125-131. [DOI: 10.1016/j.bios.2019.01.014] [Citation(s) in RCA: 35] [Impact Index Per Article: 7.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/20/2018] [Revised: 12/24/2018] [Accepted: 01/01/2019] [Indexed: 01/23/2023]
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10
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Wang D, Wang Y, Brady MD, Sheridan MV, Sherman BD, Farnum BH, Liu Y, Marquard SL, Meyer GJ, Dares CJ, Meyer TJ. A donor-chromophore-catalyst assembly for solar CO 2 reduction. Chem Sci 2019; 10:4436-4444. [PMID: 31057771 PMCID: PMC6482438 DOI: 10.1039/c8sc03316a] [Citation(s) in RCA: 15] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/26/2018] [Accepted: 03/13/2019] [Indexed: 01/07/2023] Open
Abstract
We describe here the preparation and characterization of a photocathode assembly for CO2 reduction to CO in 0.1 M LiClO4 acetonitrile.
We describe here the preparation and characterization of a photocathode assembly for CO2 reduction to CO in 0.1 M LiClO4 acetonitrile. The assembly was formed on 1.0 μm thick mesoporous films of NiO using a layer-by-layer procedure based on Zr(iv)–phosphonate bridging units. The structure of the Zr(iv) bridged assembly, abbreviated as NiO|-DA-RuCP22+-Re(i), where DA is the dianiline-based electron donor (N,N,N′,N′-((CH2)3PO3H2)4-4,4′-dianiline), RuCP2+ is the light absorber [Ru((4,4′-(PO3H2CH2)2-2,2′-bipyridine)(2,2′-bipyridine))2]2+, and Re(i) is the CO2 reduction catalyst, ReI((4,4′-PO3H2CH2)2-2,2′-bipyridine)(CO)3Cl. Visible light excitation of the assembly in CO2 saturated solution resulted in CO2 reduction to CO. A steady-state photocurrent density of 65 μA cm–2 was achieved under one sun illumination and an IPCE value of 1.9% was obtained with 450 nm illumination. The importance of the DA aniline donor in the assembly as an initial site for reduction of the RuCP2+ excited state was demonstrated by an 8 times higher photocurrent generated with DA present in the surface film compared to a control without DA. Nanosecond transient absorption measurements showed that the expected reduced one-electron intermediate, RuCP+, was formed on a sub-nanosecond time scale with back electron transfer to the electrode on the microsecond timescale which competes with forward electron transfer to the Re(i) catalyst at t1/2 = 2.6 μs (kET = 2.7 × 105 s–1).
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Affiliation(s)
- Degao Wang
- Department of Chemistry , University of North Carolina Chapel Hill , Chapel Hill , North Carolina 27599 , USA .
| | - Ying Wang
- Department of Chemistry , University of North Carolina Chapel Hill , Chapel Hill , North Carolina 27599 , USA .
| | - Matthew D Brady
- Department of Chemistry , University of North Carolina Chapel Hill , Chapel Hill , North Carolina 27599 , USA .
| | - Matthew V Sheridan
- Department of Chemistry , University of North Carolina Chapel Hill , Chapel Hill , North Carolina 27599 , USA .
| | - Benjamin D Sherman
- Department of Chemistry , Texas Christian University , Fort Worth , Texas 76129 , USA
| | - Byron H Farnum
- Department of Chemistry , University of North Carolina Chapel Hill , Chapel Hill , North Carolina 27599 , USA .
| | - Yanming Liu
- Department of Chemistry , University of North Carolina Chapel Hill , Chapel Hill , North Carolina 27599 , USA .
| | - Seth L Marquard
- Department of Chemistry , University of North Carolina Chapel Hill , Chapel Hill , North Carolina 27599 , USA .
| | - Gerald J Meyer
- Department of Chemistry , University of North Carolina Chapel Hill , Chapel Hill , North Carolina 27599 , USA .
| | - Christopher J Dares
- Department of Chemistry and Biochemistry , Florida International University , 11200 SW Eighth Street , Miami , Florida 33199 , USA
| | - Thomas J Meyer
- Department of Chemistry , University of North Carolina Chapel Hill , Chapel Hill , North Carolina 27599 , USA .
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11
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Liu Q, Wang D, Shan B, Sherman BD, Marquard SL, Eberhart MS, Liu M, Li C, Meyer TJ. Light-driven water oxidation by a dye-sensitized photoanode with a chromophore/catalyst assembly on a mesoporous double-shell electrode. J Chem Phys 2019; 150:041727. [DOI: 10.1063/1.5048780] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/02/2023] Open
Affiliation(s)
- Qing Liu
- Department of Chemistry, The University of North Carolina at Chapel Hill, Chapel Hill, North Carolina 27599, USA
| | - Degao Wang
- Department of Chemistry, The University of North Carolina at Chapel Hill, Chapel Hill, North Carolina 27599, USA
| | - Bing Shan
- Department of Chemistry, The University of North Carolina at Chapel Hill, Chapel Hill, North Carolina 27599, USA
| | - Benjamin D. Sherman
- Department of Chemistry, Texas Christian University, Fort Worth, Texas 76129, USA
| | - Seth L. Marquard
- Department of Chemistry, The University of North Carolina at Chapel Hill, Chapel Hill, North Carolina 27599, USA
| | - Michael S. Eberhart
- Department of Chemistry, The University of North Carolina at Chapel Hill, Chapel Hill, North Carolina 27599, USA
| | - Meichuan Liu
- Department of Chemistry, The University of North Carolina at Chapel Hill, Chapel Hill, North Carolina 27599, USA
- School of Chemical Science and Engineering, Tongji University, Shanghai 200092, China
| | - Chunhui Li
- Department of Chemistry, The University of North Carolina at Chapel Hill, Chapel Hill, North Carolina 27599, USA
- Department of Chemistry, Zhengzou University, Henan 4500001, China
| | - Thomas J. Meyer
- Department of Chemistry, The University of North Carolina at Chapel Hill, Chapel Hill, North Carolina 27599, USA
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12
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Xue C, Sayre HJ, Turro C. Electron injection into titanium dioxide by panchromatic dirhodium photosensitizers with low energy red light. Chem Commun (Camb) 2019; 55:10428-10431. [DOI: 10.1039/c9cc04677a] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/24/2022]
Abstract
Two new Rh2(ii,ii) dyes were synthesized and anchored to TiO2 for charge injection upon low energy irradiation.
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Affiliation(s)
- Congcong Xue
- Department of Chemistry and Biochemistry
- The Ohio State University
- Columbus
- USA
| | - Hannah J. Sayre
- Department of Chemistry and Biochemistry
- The Ohio State University
- Columbus
- USA
| | - Claudia Turro
- Department of Chemistry and Biochemistry
- The Ohio State University
- Columbus
- USA
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13
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Li W, Elzatahry A, Aldhayan D, Zhao D. Core-shell structured titanium dioxide nanomaterials for solar energy utilization. Chem Soc Rev 2018; 47:8203-8237. [PMID: 30137079 DOI: 10.1039/c8cs00443a] [Citation(s) in RCA: 115] [Impact Index Per Article: 19.2] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/23/2022]
Abstract
Because of its unmatched resource potential, solar energy utilization currently is one of the hottest research areas. Much effort has been devoted to developing advanced materials for converting solar energy into electricity, solar fuels, active chemicals, or heat. Among them, TiO2 nanomaterials have attracted much attention due to their unique properties such as low cost, nontoxicity, good stability and excellent optical and electrical properties. Great progress has been made, but research opportunities are still present for creating new nanostructured TiO2 materials. Core-shell structured nanomaterials are of great interest as they provide a platform to integrate multiple components into a functional system, showing improved or new physical and chemical properties, which are unavailable from the isolated components. Consequently, significant effort is underway to design, fabricate and evaluate core-shell structured TiO2 nanomaterials for solar energy utilization to overcome the remaining challenges, for example, insufficient light absorption and low quantum efficiency. This review strives to provide a comprehensive overview of major advances in the synthesis of core-shell structured TiO2 nanomaterials for solar energy utilization. This review starts from the general protocols to construct core-shell structured TiO2 nanomaterials, and then discusses their applications in photocatalysis, water splitting, photocatalytic CO2 reduction, solar cells and photothermal conversion. Finally, we conclude with an outlook section to offer some insights on the future directions and prospects of core-shell structured TiO2 nanomaterials and solar energy conversion.
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Affiliation(s)
- Wei Li
- Department of Chemistry, Laboratory of Advanced Materials, Shanghai Key Lab of Molecular Catalysis and Innovative Materials, iChEM and State Key Laboratory of Molecular Engineering of Polymers, Fudan University, Shanghai 200433, P. R. China.
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14
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Stabilized photoanodes for water oxidation by integration of organic dyes, water oxidation catalysts, and electron-transfer mediators. Proc Natl Acad Sci U S A 2018; 115:8523-8528. [PMID: 30082396 DOI: 10.1073/pnas.1802903115] [Citation(s) in RCA: 31] [Impact Index Per Article: 5.2] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/24/2022] Open
Abstract
Stabilized photoanodes for light-driven water oxidation have been prepared on nanoparticle core/shell electrodes with surface-stabilized donor-acceptor chromophores, a water oxidation catalyst, and an electron-transfer mediator. For the electrode, fluorine-doped tin oxide FTO|SnO2/TiO2|-Org1-|1.1 nm Al2O3|-RuP2+-WOC (water oxidation catalyst) with Org1 (1-cyano-2-(4-(diphenylamino)phenyl)vinyl)phosphonic acid), the mediator RuP2+ ([Ru(4,4-(PO3H2)2-2,2-bipyridine)(2,2-bipyridine)2]2+), and the WOC, Ru(bda)(py(CH2)(3or10)P(O3H)2)2 (bda is 2,2-bipyridine-6,6-dicarboxylate with x = 3 or 10), solar excitation resulted in photocurrents of ∼500 µA/cm2 and quantitative O2 evolution at pH 4.65. Related results were obtained for other Ru(II) polypyridyl mediators. For the organic dye PP (5-(4-(dihydroxyphosphoryl)phenyl)-10,15,20-Tris(mesityl)porphyrin), solar water oxidation occurred with a driving force near 0 V.
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15
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Wang D, Marquard SL, Troian-Gautier L, Sheridan MV, Sherman BD, Wang Y, Eberhart MS, Farnum BH, Dares CJ, Meyer TJ. Interfacial Deposition of Ru(II) Bipyridine-Dicarboxylate Complexes by Ligand Substitution for Applications in Water Oxidation Catalysis. J Am Chem Soc 2018; 140:719-726. [DOI: 10.1021/jacs.7b10809] [Citation(s) in RCA: 64] [Impact Index Per Article: 10.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/23/2022]
Affiliation(s)
- Degao Wang
- Department
of Chemistry, University of North Carolina Chapel Hill, Chapel
Hill, North Carolina 27599, United States
| | - Seth L. Marquard
- Department
of Chemistry, University of North Carolina Chapel Hill, Chapel
Hill, North Carolina 27599, United States
| | - Ludovic Troian-Gautier
- Department
of Chemistry, University of North Carolina Chapel Hill, Chapel
Hill, North Carolina 27599, United States
| | - Matthew V. Sheridan
- Department
of Chemistry, University of North Carolina Chapel Hill, Chapel
Hill, North Carolina 27599, United States
| | - Benjamin D. Sherman
- Department
of Chemistry, University of North Carolina Chapel Hill, Chapel
Hill, North Carolina 27599, United States
| | - Ying Wang
- Department
of Chemistry, University of North Carolina Chapel Hill, Chapel
Hill, North Carolina 27599, United States
| | - Michael S. Eberhart
- Department
of Chemistry, University of North Carolina Chapel Hill, Chapel
Hill, North Carolina 27599, United States
| | - Byron H. Farnum
- Department
of Chemistry, University of North Carolina Chapel Hill, Chapel
Hill, North Carolina 27599, United States
| | - Christopher J. Dares
- Department
of Chemistry and Biochemistry, Florida International University, 11200 SW
Eighth Street, Miami, Florida 33199, United States
| | - Thomas J. Meyer
- Department
of Chemistry, University of North Carolina Chapel Hill, Chapel
Hill, North Carolina 27599, United States
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