1
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Jia W, Cao X, Chen X, Qin H, Miao L, Wang Q, Jiao L. γ-MnO 2 as an Electron Reservoir for RuO 2 Oxygen Evolution Catalyst in Acidic Media. SMALL (WEINHEIM AN DER BERGSTRASSE, GERMANY) 2024:e2310464. [PMID: 38597768 DOI: 10.1002/smll.202310464] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 01/07/2024] [Revised: 03/24/2024] [Indexed: 04/11/2024]
Abstract
Developing highly active and durable catalysts in acid conditions remains an urgent issue due to the sluggish kinetics of oxygen evolution reaction (OER). Although RuO2 has been a state-of-the-art commercial catalyst for OER, it encounters poor stability and high cost. In this study, the electronic reservoir regulation strategy is proposed to promote the performance of acidic water oxidation via constructing a RuO2/MnO2 heterostructure supported on carbon cloth (CC) (abbreviated as RuO2/MnO2/CC). Theoretical and experimental results reveal that MnO2 acts as an electron reservoir for RuO2. It facilitates electron transfer from RuO2, enhancing its activity prior to OER, and donates electrons to RuO2, improving its stability after OER. Consequently, RuO2/MnO2/CC exhibits better performance compared to commercial RuO2, with an ultrasmall overpotential of 189 mV at 10 mA cm-2 and no signs of deactivation even after 800 h of electrolysis in 0.5 m H2SO4 at 10 mA cm-2. When applied as the anode in a proton exchange membrane water electrolyzer, the cost-efficient RuO2/MnO2/CC catalyst only requires a cell voltage of 1.661 V to achieve the water-splitting current of 1 A cm-2, and the noble metal cost is as low as US$ 0.00962 cm-2, indicating potential for practical applications.
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Affiliation(s)
- Wenqi Jia
- Key Laboratory of Advanced Energy Materials Chemistry (Ministry of Education), Collaborative Innovation Center of Chemical Science and Engineering (Tianjin), College of Chemistry, Nankai University, Tianjin, 300071, China
| | - Xuejie Cao
- Key Laboratory of Advanced Energy Materials Chemistry (Ministry of Education), Collaborative Innovation Center of Chemical Science and Engineering (Tianjin), College of Chemistry, Nankai University, Tianjin, 300071, China
| | - Xiaojie Chen
- Key Laboratory of Advanced Energy Materials Chemistry (Ministry of Education), Collaborative Innovation Center of Chemical Science and Engineering (Tianjin), College of Chemistry, Nankai University, Tianjin, 300071, China
| | - Hongye Qin
- Key Laboratory of Advanced Energy Materials Chemistry (Ministry of Education), Collaborative Innovation Center of Chemical Science and Engineering (Tianjin), College of Chemistry, Nankai University, Tianjin, 300071, China
| | - Licheng Miao
- Key Laboratory of Advanced Energy Materials Chemistry (Ministry of Education), Collaborative Innovation Center of Chemical Science and Engineering (Tianjin), College of Chemistry, Nankai University, Tianjin, 300071, China
| | - Qinglun Wang
- Key Laboratory of Advanced Energy Materials Chemistry (Ministry of Education), Collaborative Innovation Center of Chemical Science and Engineering (Tianjin), College of Chemistry, Nankai University, Tianjin, 300071, China
| | - Lifang Jiao
- Key Laboratory of Advanced Energy Materials Chemistry (Ministry of Education), Collaborative Innovation Center of Chemical Science and Engineering (Tianjin), College of Chemistry, Nankai University, Tianjin, 300071, China
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2
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Klingler S, Bagemihl B, Mengele AK, Kaufhold S, Myllyperkiö P, Ahokas J, Pettersson M, Rau S, Mizaikoff B. Rationalizing In Situ Active Repair in Hydrogen Evolution Photocatalysis via Non-Invasive Raman Spectroscopy. Angew Chem Int Ed Engl 2023; 62:e202306287. [PMID: 37519152 DOI: 10.1002/anie.202306287] [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: 05/05/2023] [Revised: 07/25/2023] [Accepted: 07/25/2023] [Indexed: 08/01/2023]
Abstract
Currently, most photosensitizers and catalysts used in the field of artificial photosynthesis are still based on rare earth metals and should thus be utilized as efficiently and economically as possible. While repair of an inactivated catalyst is a potential mitigation strategy, this remains a challenge. State-of-the-art methods are crucial for characterizing reaction products during photocatalysis and repair, and are currently based on invasive analysis techniques limiting real-time access to the involved mechanisms. Herein, we use an innovative in situ technique for detecting both initially evolved hydrogen and after active repair via advanced non-invasive rotational Raman spectroscopy. This facilitates unprecedently accurate monitoring of gaseous reaction products and insight into the mechanism of active repair during light-driven catalysis enabling the identification of relevant mechanistic details along with innovative repair strategies.
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Affiliation(s)
- Sarah Klingler
- Institute of Analytical and Bioanalytical Chemistry, Ulm University, Albert-Einstein-Allee 11, 89081, Ulm, Germany
| | - Benedikt Bagemihl
- Institute of Inorganic Chemistry I, Ulm University, Albert-Einstein-Allee 11, 89081, Ulm, Germany
| | - Alexander K Mengele
- Institute of Inorganic Chemistry I, Ulm University, Albert-Einstein-Allee 11, 89081, Ulm, Germany
| | - Simon Kaufhold
- Institute of Inorganic Chemistry I, Ulm University, Albert-Einstein-Allee 11, 89081, Ulm, Germany
| | - Pasi Myllyperkiö
- Department of Chemistry, Nanoscience Center, University of Jyväskylä, 40014 University of, Jyväskylä, Finland
| | - Jussi Ahokas
- Department of Chemistry, Nanoscience Center, University of Jyväskylä, 40014 University of, Jyväskylä, Finland
- Financial and Facility Services, University of Jyväskylä, 40014 University of, Jyväskylä, Finland
| | - Mika Pettersson
- Department of Chemistry, Nanoscience Center, University of Jyväskylä, 40014 University of, Jyväskylä, Finland
| | - Sven Rau
- Institute of Inorganic Chemistry I, Ulm University, Albert-Einstein-Allee 11, 89081, Ulm, Germany
| | - Boris Mizaikoff
- Institute of Analytical and Bioanalytical Chemistry, Ulm University, Albert-Einstein-Allee 11, 89081, Ulm, Germany
- Hahn-Schickard, Sedanstraße 4, 89081, Ulm, Germany
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3
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Mengele A, Rau S. Learning from Nature's Example: Repair Strategies in Light-Driven Catalysis. JACS AU 2023; 3:36-46. [PMID: 36711104 PMCID: PMC9875256 DOI: 10.1021/jacsau.2c00507] [Citation(s) in RCA: 2] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 09/19/2022] [Revised: 11/04/2022] [Accepted: 11/10/2022] [Indexed: 06/18/2023]
Abstract
The continuous repair of subunits of the photosynthetic apparatus is a key factor determining the overall efficiency of biological photosynthesis. Recent concepts for repairing artificial photocatalysts and catalytically active materials within the realm of solar fuel formation show great potential in reshaping the research directions within this field. This perspective describes the latest advances, concepts, and mechanisms in the field of catalyst repair and catalyst self-healing and provides an outlook on which additional steps need to be taken to bring artificial photosynthetic systems closer to real-life applications.
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Affiliation(s)
- Alexander
K. Mengele
- Institute
of Inorganic Chemistry I, Ulm University, Albert-Einstein-Allee 11, 89081 Ulm, Germany
| | - Sven Rau
- Institute
of Inorganic Chemistry I, Ulm University, Albert-Einstein-Allee 11, 89081 Ulm, Germany
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4
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Maloul S, van den Borg M, Müller C, Zedler L, Mengele AK, Gaissmaier D, Jacob T, Rau S, Dietzek-Ivanšić B, Streb C. Multifunctional Polyoxometalate Platforms for Supramolecular Light-Driven Hydrogen Evolution*. Chemistry 2021; 27:16846-16852. [PMID: 34719797 PMCID: PMC9299148 DOI: 10.1002/chem.202103817] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/22/2021] [Indexed: 11/17/2022]
Abstract
Multifunctional supramolecular systems are a central research topic in light‐driven solar energy conversion. Here, we report a polyoxometalate (POM)‐based supramolecular dyad, where two platinum‐complex hydrogen evolution catalysts are covalently anchored to an Anderson polyoxomolybdate anion. Supramolecular electrostatic coupling of the system to an iridium photosensitizer enables visible light‐driven hydrogen evolution. Combined theory and experiment demonstrate the multifunctionality of the POM, which acts as photosensitizer/catalyst‐binding‐site[1] and facilitates light‐induced charge‐transfer and catalytic turnover. Chemical modification of the Pt‐catalyst site leads to increased hydrogen evolution reactivity. Mechanistic studies shed light on the role of the individual components and provide a molecular understanding of the interactions which govern stability and reactivity. The system could serve as a blueprint for multifunctional polyoxometalates in energy conversion and storage.
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Affiliation(s)
- Salam Maloul
- Institute of Inorganic Chemistry I, Ulm University, Albert-Einstein-Allee 11, 89081, Ulm, Germany
| | - Matthias van den Borg
- Institute of Electrochemistry, Ulm University, Albert-Einstein-Allee 47, 89081, Ulm, Germany
| | - Carolin Müller
- Institute of Physical Chemistry, Friedrich Schiller University Jena, Helmholtzweg 4, 07743, Jena, Germany.,Leibniz Institute of Photonic Technologies (IPHT), Albert-Einstein-Straße 9, 07745, Jena, Germany
| | - Linda Zedler
- Leibniz Institute of Photonic Technologies (IPHT), Albert-Einstein-Straße 9, 07745, Jena, Germany
| | - Alexander K Mengele
- Institute of Inorganic Chemistry I, Ulm University, Albert-Einstein-Allee 11, 89081, Ulm, Germany
| | - Daniel Gaissmaier
- Institute of Electrochemistry, Ulm University, Albert-Einstein-Allee 47, 89081, Ulm, Germany.,Helmholtz-Institute Ulm (HIU) Electrochemical Energy Storage, Helmholtzstr. 11, 89081, Ulm, Germany.,Karlsruhe Institute of Technology (KIT), P.O. Box 3640, 76021 Karlsruhe, Karlsruhe, Germany
| | - Timo Jacob
- Institute of Electrochemistry, Ulm University, Albert-Einstein-Allee 47, 89081, Ulm, Germany.,Helmholtz-Institute Ulm (HIU) Electrochemical Energy Storage, Helmholtzstr. 11, 89081, Ulm, Germany.,Karlsruhe Institute of Technology (KIT), P.O. Box 3640, 76021 Karlsruhe, Karlsruhe, Germany
| | - Sven Rau
- Institute of Inorganic Chemistry I, Ulm University, Albert-Einstein-Allee 11, 89081, Ulm, Germany
| | - Benjamin Dietzek-Ivanšić
- Institute of Physical Chemistry, Friedrich Schiller University Jena, Helmholtzweg 4, 07743, Jena, Germany.,Leibniz Institute of Photonic Technologies (IPHT), Albert-Einstein-Straße 9, 07745, Jena, Germany
| | - Carsten Streb
- Institute of Inorganic Chemistry I, Ulm University, Albert-Einstein-Allee 11, 89081, Ulm, Germany
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5
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Whang DR. Immobilization of molecular catalysts for artificial photosynthesis. NANO CONVERGENCE 2020; 7:37. [PMID: 33252707 PMCID: PMC7704885 DOI: 10.1186/s40580-020-00248-1] [Citation(s) in RCA: 7] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 11/02/2020] [Accepted: 11/23/2020] [Indexed: 05/08/2023]
Abstract
Artificial photosynthesis offers a way of producing fuels or high-value chemicals using a limitless energy source of sunlight and abundant resources such as water, CO2, and/or O2. Inspired by the strategies in natural photosynthesis, researchers have developed a number of homogeneous molecular systems for photocatalytic, photoelectrocatalytic, and electrocatalytic artificial photosynthesis. However, their photochemical instability in homogeneous solution are hurdles for scaled application in real life. Immobilization of molecular catalysts in solid supports support provides a fine blueprint to tackle this issue. This review highlights the recent developments in (i) techniques for immobilizing molecular catalysts in solid supports and (ii) catalytic water splitting, CO2 reduction, and O2 reduction with the support-immobilized molecular catalysts. Remaining challenges for molecular catalyst-based devices for artificial photosynthesis are discussed in the end of this review.
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Affiliation(s)
- Dong Ryeol Whang
- Department of Advanced Materials, Hannam University, 34054, Daejeon, Republic of Korea.
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6
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Jo JH, Choi S, Cheong H, Shin JY, Kim CH, Cho DW, Son H, Pac C, Kang SO. Ancillary Ligand Effects on Heteroleptic Ir
III
Dye in Dye‐Sensitized Photocatalytic CO
2
Reduction: Photoaccumulation of Charges on Arylated Bipyridine Ligand and Its Control on Catalytic Performance. Chemistry 2020; 26:16733-16754. [DOI: 10.1002/chem.202002575] [Citation(s) in RCA: 13] [Impact Index Per Article: 3.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/26/2020] [Indexed: 12/14/2022]
Affiliation(s)
- Ju Hyoung Jo
- Department of Advanced Materials Chemistry Korea University Sejong 30019 South Korea
| | - Sunghan Choi
- Department of Advanced Materials Chemistry Korea University Sejong 30019 South Korea
| | - Ha‐Yeon Cheong
- Department of Advanced Materials Chemistry Korea University Sejong 30019 South Korea
| | - Jae Yoon Shin
- Department of Advanced Materials Chemistry Korea University Sejong 30019 South Korea
| | - Chul Hoon Kim
- Department of Advanced Materials Chemistry Korea University Sejong 30019 South Korea
| | - Dae Won Cho
- Department of Advanced Materials Chemistry Korea University Sejong 30019 South Korea
| | - Ho‐Jin Son
- Department of Advanced Materials Chemistry Korea University Sejong 30019 South Korea
| | - Chyongjin Pac
- Department of Advanced Materials Chemistry Korea University Sejong 30019 South Korea
| | - Sang Ook Kang
- Department of Advanced Materials Chemistry Korea University Sejong 30019 South Korea
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7
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Whang DR, Apaydin DH, Park SY, Sariciftci NS. An electron-reservoir Re(I) complex for enhanced efficiency for reduction of CO2 to CO. J Catal 2018. [DOI: 10.1016/j.jcat.2018.04.028] [Citation(s) in RCA: 14] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/16/2022]
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8
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Affiliation(s)
- Dong Ryeol Whang
- Institute of Physical Chemistry; Johannes Kepler University Linz; Altenbergerstraße 69 4040 Linz Austria
| | - Dogukan Hazar Apaydin
- Institute of Physical Chemistry; Johannes Kepler University Linz; Altenbergerstraße 69 4040 Linz Austria
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9
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Kim D, Whang DR, Park SY. Self-Healing of Molecular Catalyst and Photosensitizer on Metal–Organic Framework: Robust Molecular System for Photocatalytic H2 Evolution from Water. J Am Chem Soc 2016; 138:8698-701. [DOI: 10.1021/jacs.6b04552] [Citation(s) in RCA: 123] [Impact Index Per Article: 15.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/21/2022]
Affiliation(s)
- Dongha Kim
- Center for Supramolecular
Optoelectronic Materials, Department of Materials Science and Engineering, Seoul National University, 1 Gwanak-ro, Gwanak-gu, Seoul 151-744, Korea
| | - Dong Ryeol Whang
- Center for Supramolecular
Optoelectronic Materials, Department of Materials Science and Engineering, Seoul National University, 1 Gwanak-ro, Gwanak-gu, Seoul 151-744, Korea
| | - Soo Young Park
- Center for Supramolecular
Optoelectronic Materials, Department of Materials Science and Engineering, Seoul National University, 1 Gwanak-ro, Gwanak-gu, Seoul 151-744, Korea
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