101
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Sakaguchi Y, Call A, Yamauchi K, Sakai K. Catalysis of CO 2 reduction by diazapyridinophane complexes of Fe, Co, and Ni: CO 2 binding triggered by combined frontier MO associations involving a SOMO. Dalton Trans 2021; 50:15983-15995. [PMID: 34783805 DOI: 10.1039/d1dt01877a] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
Abstract
Our previous study on the photochemical CO2 reduction into CO catalyzed by the diazapyridinophane complexes of Fe, Co, and Ni revealed that (i) the Co catalyst shows the highest TOF but degrades rapidly, (ii) the Fe catalyst exhibits a lower TOF relative to Co but shows higher robustness, giving a higher TON, and (iii) the Ni complex shows no activity (Sakaguchi et al., Chem. Commun., 2019, 55, 8552). Here we show our DFT results unveiling that the Fe and Co catalysts can utilize multiple sets of frontier MO associations at the CO2 binding by including one of the SOMOs in a high-spin d7 Fe(I) and d8 Co(I) center, respectively, giving an increased driving force for these oxidative addition steps. Remarkably, two-electron reduction of CO2 to CO22- at the binding step is driven by the two electrons transferred from different d-based orbitals. The CoI species binds CO2 at the rate-limiting step with an activation barrier of 15.0 kcal mol-1, rationalizing the high initial TOF observed. However, the CoI(CO) species is given as a dead-end product, consistent with its relatively rapid deactivation. The Fe catalyst possesses a slightly higher barrier in CO2 binding (ΔG‡ = 15.8 kcal mol-1) but does not stabilize the FeI(CO) species which readily releases CO (ΔG = 3.5 kcal mol-1). The Ni catalyst has the smallest barrier in CO2 binding (ΔG‡ = 11.5 kcal mol-1) but the CO release is largely prohibited by the dead-end NiI(CO) species, consistent with its inactive character towards CO2 reduction. The combined results all satisfactorily explain the observed catalytic behaviors.
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Affiliation(s)
- Yuto Sakaguchi
- Department of Chemistry, Faculty of Science, Kyushu University, Motooka 744, Nishi-ku, Fukuoka 819-0395, Japan.
| | - Arnau Call
- Institut de Química Computacional i Catàlisi (IQCC) and Departament de Química Universitat de Girona, Campus Montilivi, Girona E-17071, Catalonia, Spain
| | - Kosei Yamauchi
- Department of Chemistry, Faculty of Science, Kyushu University, Motooka 744, Nishi-ku, Fukuoka 819-0395, Japan.
| | - Ken Sakai
- Department of Chemistry, Faculty of Science, Kyushu University, Motooka 744, Nishi-ku, Fukuoka 819-0395, Japan.
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102
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Phelan BT, Mara MW, Chen LX. Excited-state structural dynamics of nickel complexes probed by optical and X-ray transient absorption spectroscopies: insights and implications. Chem Commun (Camb) 2021; 57:11904-11921. [PMID: 34695174 DOI: 10.1039/d1cc03875c] [Citation(s) in RCA: 7] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/18/2022]
Abstract
Excited states of nickel complexes undergo a variety of photochemical processes, such as charge transfer, ligation/deligation, and redox reactions, relevant to solar energy conversion and photocatalysis. The efficiencies of the aforementioned processes are closely coupled to the molecular structures in the ground and excited states. The conventional optical transient absorption spectroscopy has revealed important excited-state pathways and kinetics, but information regarding the metal center, in particular transient structural and electronic properties, remains limited. These deficiencies are addressed by X-ray transient absorption (XTA) spectroscopy, a detailed probe of 3d orbital occupancy, oxidation state and coordination geometry. The examples of excited-state structural dynamics of nickel porphyrin and nickel phthalocyanine have been described from our previous studies with highlights on the unique structural information obtained by XTA spectroscopy. We close by surveying prospective applications of XTA spectroscopy to active areas of Ni-based photocatalysis based on the knowledge gained from our previous studies.
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Affiliation(s)
- Brian T Phelan
- Chemical Sciences and Engineering Division, Argonne National Laboratory, Lemont, Illinois 60439, USA.
| | - Michael W Mara
- Chemical Sciences and Engineering Division, Argonne National Laboratory, Lemont, Illinois 60439, USA. .,Department of Chemistry, Northwestern University, Evanston, Illinois 60208, USA
| | - Lin X Chen
- Chemical Sciences and Engineering Division, Argonne National Laboratory, Lemont, Illinois 60439, USA. .,Department of Chemistry, Northwestern University, Evanston, Illinois 60208, USA
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103
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Pirzada BM, Dar AH, Shaikh MN, Qurashi A. Reticular-Chemistry-Inspired Supramolecule Design as a Tool to Achieve Efficient Photocatalysts for CO 2 Reduction. ACS OMEGA 2021; 6:29291-29324. [PMID: 34778605 PMCID: PMC8581999 DOI: 10.1021/acsomega.1c04018] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Abstract] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 07/28/2021] [Accepted: 09/30/2021] [Indexed: 05/03/2023]
Abstract
Photocatalytic CO2 reduction into C1 products is one of the most trending research subjects of current times as sustainable energy generation is the utmost need of the hour. In this review, we have tried to comprehensively summarize the potential of supramolecule-based photocatalysts for CO2 reduction into C1 compounds. At the outset, we have thrown light on the inert nature of gaseous CO2 and the various challenges researchers are facing in its reduction. The evolution of photocatalysts used for CO2 reduction, from heterogeneous catalysis to supramolecule-based molecular catalysis, and subsequent semiconductor-supramolecule hybrid catalysis has been thoroughly discussed. Since CO2 is thermodynamically a very stable molecule, a huge reduction potential is required to undergo its one- or multielectron reduction. For this reason, various supramolecule photocatalysts were designed involving a photosensitizer unit and a catalyst unit connected by a linker. Later on, solid semiconductor support was also introduced in this supramolecule system to achieve enhanced durability, structural compactness, enhanced charge mobility, and extra overpotential for CO2 reduction. Reticular chemistry is seen to play a pivotal role as it allows bringing all of the positive features together from various components of this hybrid semiconductor-supramolecule photocatalyst system. Thus, here in this review, we have discussed the selection and role of various components, viz. the photosensitizer component, the catalyst component, the linker, the semiconductor support, the anchoring ligands, and the peripheral ligands for the design of highly performing CO2 reduction photocatalysts. The selection and role of various sacrificial electron donors have also been highlighted. This review is aimed to help researchers reach an understanding that may translate into the development of excellent CO2 reduction photocatalysts that are operational under visible light and possess superior activity, efficiency, and selectivity.
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Affiliation(s)
- Bilal Masood Pirzada
- Department
of Chemistry, Khalifa University of Science
and Technology (KU), Abu Dhabi 127788, United Arab Emiratus
- ,
| | - Arif Hassan Dar
- Institute
of NanoScience and Technology (INST), Mohali 160062, India
| | - M. Nasiruzzaman Shaikh
- Interdisciplinary
Research Center for Hydrogen and Energy Storage (IRC-HES), King Fahd University of Petroleum and Minerals, Dhahran 31261, Saudi Arabia
| | - Ahsanulhaq Qurashi
- Department
of Chemistry, Khalifa University of Science
and Technology (KU), Abu Dhabi 127788, United Arab Emiratus
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104
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Tsipis AC, Sarantou AA. DFT insights into the photocatalytic reduction of CO 2 to CO by Re(I) complexes: the crucial role of the triethanolamine "magic" sacrificial electron donor. Dalton Trans 2021; 50:14797-14809. [PMID: 34596179 DOI: 10.1039/d1dt02188e] [Citation(s) in RCA: 11] [Impact Index Per Article: 3.7] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/16/2022]
Abstract
The reaction mechanism for the photocatalytic reduction of CO2 to CO catalyzed by the [Re(en)(CO)3Cl] complex in the presence of triethanolamine, R3N (R = CH2CH2OH) abbreviated as TEOA, in DMF solution was studied in-depth with the aid of DFT computational protocols by calculating the geometric and free energy reaction profiles for several possible reaction pathways. The reaction pathways studied start with the "real" catalytic species [Re(en)(CO)3], [Re(en)(CO)3]- and/or [Re(en)(CO)2Cl]- generated from the excited triplet T1 state upon single and double reductive quenching by a TEOA sacrificial electron donor or photodissociation of a CO ligand. The first step in all the catalytic cycles investigated involves the capture of either CO2 or the oxidized R2NCH2CH2O˙ radical. In the latter case, the CO2 molecule is captured (inserted) by the Re-OCH2CH2NR2 bond forming stable intermediates. Next, successive protonations (TEOA also acts as a proton donor) lead to the release of CO either from the energy consuming 2e- reduction of [Re(en)(CO)4]+ or [Re(en)(CO)2Cl]+ complexes in the CO2 capture pathways or from the released unstable diprotonated [R2NCH2CH2OC(OH)(OH)]+ species regenerating TEOA and the catalyst. The CO2 insertion reaction pathway is the favorable pathway for the photocatalytic reduction of CO2 → CO catalyzed by the [Re(en)(CO)3Cl] complex in the presence of TEOA manifesting its crucial role as an electron and proton donor, capturing CO2 and releasing CO.
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Affiliation(s)
| | - Antonia A Sarantou
- Department of Chemistry, University of Ioannina, Ioannina 45110, Greece.
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105
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Li J, Abbas SU, Wang H, Zhang Z, Hu W. Recent Advances in Interface Engineering for Electrocatalytic CO 2 Reduction Reaction. NANO-MICRO LETTERS 2021; 13:216. [PMID: 34694525 PMCID: PMC8545969 DOI: 10.1007/s40820-021-00738-9] [Citation(s) in RCA: 35] [Impact Index Per Article: 11.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 08/16/2021] [Accepted: 09/13/2021] [Indexed: 05/13/2023]
Abstract
Electrocatalytic CO2 reduction reaction (CO2RR) can store and transform the intermittent renewable energy in the form of chemical energy for industrial production of chemicals and fuels, which can dramatically reduce CO2 emission and contribute to carbon-neutral cycle. Efficient electrocatalytic reduction of chemically inert CO2 is challenging from thermodynamic and kinetic points of view. Therefore, low-cost, highly efficient, and readily available electrocatalysts have been the focus for promoting the conversion of CO2. Very recently, interface engineering has been considered as a highly effective strategy to modulate the electrocatalytic performance through electronic and/or structural modulation, regulations of electron/proton/mass/intermediates, and the control of local reactant concentration, thereby achieving desirable reaction pathway, inhibiting competing hydrogen generation, breaking binding-energy scaling relations of intermediates, and promoting CO2 mass transfer. In this review, we aim to provide a comprehensive overview of current developments in interface engineering for CO2RR from both a theoretical and experimental standpoint, involving interfaces between metal and metal, metal and metal oxide, metal and nonmetal, metal oxide and metal oxide, organic molecules and inorganic materials, electrode and electrolyte, molecular catalysts and electrode, etc. Finally, the opportunities and challenges of interface engineering for CO2RR are proposed.
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Affiliation(s)
- Junjun Li
- Tianjin Key Laboratory of Molecular Optoelectronic Sciences, Department of Chemistry, School of Science, Tianjin University and Collaborative Innovation Center of Chemical Science and Engineering, Tianjin, 300072, People's Republic of China
| | - Sulaiman Umar Abbas
- Tianjin Key Laboratory of Molecular Optoelectronic Sciences, Department of Chemistry, School of Science, Tianjin University and Collaborative Innovation Center of Chemical Science and Engineering, Tianjin, 300072, People's Republic of China
| | - Haiqing Wang
- Institute for Advanced Interdisciplinary Research (iAIR), University of Jinan, Jinan, 250022, People's Republic of China.
| | - Zhicheng Zhang
- Tianjin Key Laboratory of Molecular Optoelectronic Sciences, Department of Chemistry, School of Science, Tianjin University and Collaborative Innovation Center of Chemical Science and Engineering, Tianjin, 300072, People's Republic of China.
| | - Wenping Hu
- Tianjin Key Laboratory of Molecular Optoelectronic Sciences, Department of Chemistry, School of Science, Tianjin University and Collaborative Innovation Center of Chemical Science and Engineering, Tianjin, 300072, People's Republic of China
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Obermeier M, Beckmann F, Schaer RS, Wenger OS, Schwalbe M. Sensitized Photocatalytic CO 2 Reduction With Earth Abundant 3d Metal Complexes Possessing Dipicolyl-Triazacyclononane Derivatives. Front Chem 2021; 9:751716. [PMID: 34660540 PMCID: PMC8514774 DOI: 10.3389/fchem.2021.751716] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/01/2021] [Accepted: 09/14/2021] [Indexed: 11/13/2022] Open
Abstract
Complexes based on nitrogen and sulfur containing ligands involving 3d metal centers are known for the electrocatalytic reduction of CO2. However, photocatalytical activation has rarely been investigated. We herein present results on the light-driven CO2 reduction using either Ir(dFppy)3 [Ir, dFppy = 2-(4,6-difluorophenyl)pyridine] or [Cu(xant)(bcp)]+, (Cu, xant = xantphos, bcp = bathocuproine) as photosensitizer in combination with TEA (triethylamine) as sacrificial electron donor. The 3d metal catalysts have either dptacn (dipicolyl-triazacyclononane, LN3) or dpdatcn (dipicolyl-diazathiocyclononane, LN2S) as ligand framework and Fe3+, Co3+ or Ni2+ as central metal ion. It turned out that the choice of ligand, metal center and solvent composition influences the selectivity for product formation, which means that the gaseous reduction products can be solely CO or H2 or a mixture of both. The ratio between these two products can be controlled by the right choice of reaction conditions. With using Cu as photosensitizer, we could introduce an intermolecular system that is based solely on 3d metal compounds being able to reduce CO2.
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Affiliation(s)
- Martin Obermeier
- Institute of Chemistry, Humboldt-Universität zu Berlin, Berlin, Germany
| | - Fabian Beckmann
- Institute of Chemistry, Humboldt-Universität zu Berlin, Berlin, Germany
| | - Raoul S Schaer
- Department of Chemistry, Universität Basel, Basel, Switzerland
| | - Oliver S Wenger
- Department of Chemistry, Universität Basel, Basel, Switzerland
| | - Matthias Schwalbe
- Institute of Chemistry, Humboldt-Universität zu Berlin, Berlin, Germany
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107
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Chen EX, Qiu M, Zhang YF, He L, Sun YY, Zheng HL, Wu X, Zhang J, Lin Q. Energy Band Alignment and Redox-Active Sites in Metalloporphyrin-Spaced Metal-Catechol Frameworks for Enhanced CO 2 Photoreduction. Angew Chem Int Ed Engl 2021; 61:e202111622. [PMID: 34652055 DOI: 10.1002/anie.202111622] [Citation(s) in RCA: 6] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/27/2021] [Revised: 09/29/2021] [Indexed: 11/12/2022]
Abstract
Two new chemically stable metalloporphyrin-bridged metal-catechol frameworks, InTCP-Co and FeTCP-Co, were constructed to achieve artificial photosynthesis without additional sacrificial agents and photosensitizers. The CO2 photoreduction rate over FeTCP-Co considerably exceeds that obtained over InTCP-Co, and the incorporation of uncoordinated hydroxyl groups, associated with catechol, into the network further promotes the photocatalytic activity. The iron-oxo coordination chain assists energy band alignment and provides a redox-active site, and the uncoordinated hydroxyl group contributes to the visible-light absorptance, charge-carrier transfer, and CO2 -scaffold affinity. With a formic acid selectivity of 97.8 %, FeTCP-OH-Co affords CO2 photoconversion with a reaction rate 4.3 and 15.7 times higher than those of FeTCP- Co and InTCP-Co, respectively. These findings are also consistent with the spectroscopic study and DFT calculation.
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Affiliation(s)
- Er-Xia Chen
- State Key Laboratory of Structural Chemistry, Fujian Institute of Research on the Structure of Matter, Chinese Academy of Sciences, Fuzhou, Fujian, 350002, P. R. China.,Fujian Science & Technology Innovation Laboratory for Optoelectronic Information of China, Fuzhou, Fujian, 350108, P. R. China
| | - Mei Qiu
- State Key Laboratory of Structural Chemistry, Fujian Institute of Research on the Structure of Matter, Chinese Academy of Sciences, Fuzhou, Fujian, 350002, P. R. China.,College of Chemistry, Jiangxi Agricultural University, Nanchang, Jiangxi, 330045, P. R. China
| | - Yong-Fan Zhang
- College of Chemistry, Fuzhou University, Fuzhou, Fujian, 350116, P. R. China
| | - Liang He
- State Key Laboratory of Structural Chemistry, Fujian Institute of Research on the Structure of Matter, Chinese Academy of Sciences, Fuzhou, Fujian, 350002, P. R. China
| | - Ya-Yong Sun
- State Key Laboratory of Structural Chemistry, Fujian Institute of Research on the Structure of Matter, Chinese Academy of Sciences, Fuzhou, Fujian, 350002, P. R. China
| | - Hui-Li Zheng
- State Key Laboratory of Structural Chemistry, Fujian Institute of Research on the Structure of Matter, Chinese Academy of Sciences, Fuzhou, Fujian, 350002, P. R. China
| | - Xin Wu
- State Key Laboratory of Structural Chemistry, Fujian Institute of Research on the Structure of Matter, Chinese Academy of Sciences, Fuzhou, Fujian, 350002, P. R. China
| | - Jian Zhang
- State Key Laboratory of Structural Chemistry, Fujian Institute of Research on the Structure of Matter, Chinese Academy of Sciences, Fuzhou, Fujian, 350002, P. R. China
| | - Qipu Lin
- State Key Laboratory of Structural Chemistry, Fujian Institute of Research on the Structure of Matter, Chinese Academy of Sciences, Fuzhou, Fujian, 350002, P. R. China
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108
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Liu C, Sadeghzadeh SM. CdSnO3/SnD NPs as a Nanocatalyst for Carbonylation of o-Phenylenediamine with CO2. Catal Letters 2021. [DOI: 10.1007/s10562-020-03528-x] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/25/2022]
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109
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Perazio A, Lowe G, Gobetto R, Bonin J, Robert M. Light-driven catalytic conversion of CO2 with heterogenized molecular catalysts based on fourth period transition metals. Coord Chem Rev 2021. [DOI: 10.1016/j.ccr.2021.214018] [Citation(s) in RCA: 6] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/25/2022]
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110
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Beagan DM, Cabelof AC, Pink M, Carta V, Gao X, Caulton KG. Nickel-mediated N-N bond formation and N 2O liberation via nitrogen oxyanion reduction. Chem Sci 2021; 12:10664-10672. [PMID: 34447560 PMCID: PMC8356809 DOI: 10.1039/d1sc02846d] [Citation(s) in RCA: 4] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/25/2021] [Accepted: 07/13/2021] [Indexed: 12/26/2022] Open
Abstract
The syntheses of (DIM)Ni(NO3)2 and (DIM)Ni(NO2)2, where DIM is a 1,4-diazadiene bidentate donor, are reported to enable testing of bis boryl reduced N-heterocycles for their ability to carry out stepwise deoxygenation of coordinated nitrate and nitrite, forming O(Bpin)2. Single deoxygenation of (DIM)Ni(NO2)2 yields the tetrahedral complex (DIM)Ni(NO)(ONO), with a linear nitrosyl and κ1-ONO. Further deoxygenation of (DIM)Ni(NO)(ONO) results in the formation of dimeric [(DIM)Ni(NO)]2, where the dimer is linked through a Ni–Ni bond. The lost reduced nitrogen byproduct is shown to be N2O, indicating N–N bond formation in the course of the reaction. Isotopic labelling studies establish that the N–N bond of N2O is formed in a bimetallic Ni2 intermediate and that the two nitrogen atoms of (DIM)Ni(NO)(ONO) become symmetry equivalent prior to N–N bond formation. The [(DIM)Ni(NO)]2 dimer is susceptible to oxidation by AgX (X = NO3−, NO2−, and OTf−) as well as nitric oxide, the latter of which undergoes nitric oxide disproportionation to yield N2O and (DIM)Ni(NO)(ONO). We show that the first step in the deoxygenation of (DIM)Ni(NO)(ONO) to liberate N2O is outer sphere electron transfer, providing insight into the organic reductants employed for deoxygenation. Lastly, we show that at elevated temperatures, deoxygenation is accompanied by loss of DIM to form either pyrazine or bipyridine bridged polymers, with retention of a BpinO− bridging ligand. Deoxygenation of nitrogen oxyanions coordinated to nickel using reduced borylated heterocycles leads to N–N bond formation and N2O liberation. The nickel dimer product facilitates NO disproportionation, leading to a synthetic cycle.![]()
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Affiliation(s)
- Daniel M Beagan
- Indiana University, Department of Chemistry 800 E. Kirkwood Ave. Bloomington IN 47401 USA
| | - Alyssa C Cabelof
- Indiana University, Department of Chemistry 800 E. Kirkwood Ave. Bloomington IN 47401 USA
| | - Maren Pink
- Indiana University, Department of Chemistry 800 E. Kirkwood Ave. Bloomington IN 47401 USA
| | - Veronica Carta
- Indiana University, Department of Chemistry 800 E. Kirkwood Ave. Bloomington IN 47401 USA
| | - Xinfeng Gao
- Indiana University, Department of Chemistry 800 E. Kirkwood Ave. Bloomington IN 47401 USA
| | - Kenneth G Caulton
- Indiana University, Department of Chemistry 800 E. Kirkwood Ave. Bloomington IN 47401 USA
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111
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Lee D, Choi S, Choe MS, Kim SY, Park K, Kim CH, Son HJ, Kang SO. Photochemical CO 2-to-Formate/CO Conversion Catalyzed by Half-Metallocene Ir(III) Catalyst and Its Mechanistic Investigation. Organometallics 2021. [DOI: 10.1021/acs.organomet.1c00180] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/30/2022]
Affiliation(s)
- Daehan Lee
- Department of Advanced Materials Chemistry, Korea University, Sejong 30019, Korea
| | - Sunghan Choi
- Department of Advanced Materials Chemistry, Korea University, Sejong 30019, Korea
| | - Min Su Choe
- Department of Advanced Materials Chemistry, Korea University, Sejong 30019, Korea
| | - So-Yoen Kim
- Department of Advanced Materials Chemistry, Korea University, Sejong 30019, Korea
| | - Kyutai Park
- Department of Advanced Materials Chemistry, Korea University, Sejong 30019, Korea
| | - Chul Hoon Kim
- Department of Advanced Materials Chemistry, Korea University, Sejong 30019, Korea
| | - Ho-Jin Son
- Department of Advanced Materials Chemistry, Korea University, Sejong 30019, Korea
| | - Sang Ook Kang
- Department of Advanced Materials Chemistry, Korea University, Sejong 30019, Korea
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112
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Laurans M, Wells JAL, Ott S. Immobilising molecular Ru complexes on a protective ultrathin oxide layer of p-Si electrodes towards photoelectrochemical CO 2 reduction. Dalton Trans 2021; 50:10482-10492. [PMID: 34259300 DOI: 10.1039/d1dt01331a] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/03/2023]
Abstract
Photoelectrochemical CO2 reduction is a promising approach for renewable fuel generation and to reduce greenhouse gas emissions. Owing to their synthetic tunability, molecular catalysts for the CO2 reduction reaction can give rise to high product selectivity. In this context, a RuII complex [Ru(HO-tpy)(6-mbpy)(NCCH3)]2+ (HO-tpy = 4'-hydroxy-2,2':6',2''-terpyridine; 6-mbpy = 6-methyl-2,2'-bipyridine) was immobilised on a thin SiOx layer of a p-Si electrode that was decorated with a bromide-terminated molecular layer. Following the characterisation of the assembled photocathodes by X-ray photoelectron spectroscopy and ellipsometry, PEC experiments demonstrate electron transfer from the p-Si to the Ru complex through the native oxide layer under illumination and a cathodic bias. A state-of-the-art photovoltage of 570 mV was determined by comparison with an analogous n-type Si assembly. While the photovoltage of the modified photocathode is promising for future photoelectrochemical CO2 reduction and the p-Si/SiOx junction seems to be unchanged during the PEC experiments, a fast desorption of the molecular Ru complex was observed. An in-depth investigation of the cathode degradation by comparison with reference materials highlights the role of the hydroxyl functionality of the Ru complex to ensure its grafting on the substrate. In contrast, no essential role for the bromide function on the Si substrate designed to engage with the hydroxyl group of the Ru complex in an SN2-type reaction could be established.
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Affiliation(s)
- Maxime Laurans
- Department of Chemistry - Ångström Laboratory, Uppsala University, Box 523, 75120 Uppsala, Sweden.
| | - Jordann A L Wells
- Department of Chemistry - Ångström Laboratory, Uppsala University, Box 523, 75120 Uppsala, Sweden.
| | - Sascha Ott
- Department of Chemistry - Ångström Laboratory, Uppsala University, Box 523, 75120 Uppsala, Sweden.
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113
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Cai ZF, Zheng LQ, Zhang Y, Zenobi R. Molecular-Scale Chemical Imaging of the Orientation of an On-Surface Coordination Complex by Tip-Enhanced Raman Spectroscopy. J Am Chem Soc 2021; 143:12380-12386. [PMID: 34329556 DOI: 10.1021/jacs.1c06366] [Citation(s) in RCA: 14] [Impact Index Per Article: 4.7] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/28/2022]
Abstract
Metal-organic coordination structures at interfaces play an essential role in many biological and chemical systems. Understanding the molecular specificity, orientation, and spatial distribution of the coordination complexes at the nanometer scale is of great importance for effective molecular engineering of nanostructures and fabrication of functional devices with controllable properties. However, fundamental properties of such coordination systems are still rarely studied directly. In this work, we present a spectroscopic approach on the basis of tip-enhanced Raman spectroscopy (TERS) to investigate cobalt(II) tetraphenyl-porphyrine coordination species on the scale of a single molecule under ambient conditions. Coordination species anchored on gold surfaces modified with pyridine thiol self-assembled monolayers can be spectroscopically distinguished and mapped with ca. 2 nm resolution. In addition, in combination with density functional theory simulations, the adsorption configuration and molecular orientation of the coordination complexes are also revealed using TERS imaging.
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Affiliation(s)
- Zhen-Feng Cai
- Department of Chemistry and Applied Biosciences, ETH Zurich, Vladimir-Prelog-Weg 3, Zurich CH-8093, Switzerland
| | - Li-Qing Zheng
- Department of Chemistry and Applied Biosciences, ETH Zurich, Vladimir-Prelog-Weg 3, Zurich CH-8093, Switzerland
| | - Yao Zhang
- Hefei National Laboratory for Physical Sciences at the Microscale and Synergetic Innovation Center of Quantum Information and Quantum Physics, University of Science and Technology of China, Hefei, Anhui 230026, China
| | - Renato Zenobi
- Department of Chemistry and Applied Biosciences, ETH Zurich, Vladimir-Prelog-Weg 3, Zurich CH-8093, Switzerland
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114
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Zhou H, Kouhnavard M, Jung S, Mishra R, Biswas P. One-step aerosol synthesis of a double perovskite oxide (KBaTeBiO 6) as a potential catalyst for CO 2 photoreduction. NANOSCALE 2021; 13:11963-11975. [PMID: 34212950 DOI: 10.1039/d1nr01505b] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/13/2023]
Abstract
This study presents a comprehensive investigation on the aerosol synthesis of a semiconducting double perovskite oxide with a nominal composition of KBaTeBiO6, which is considered as a potential candidate for CO2 photoreduction. We demonstrate the rapid synthesis of the multispecies compound KBaTeBiO6 with extremely high purity and controllable size through a single-step furnace aerosol reactor (FuAR) process. The formation mechanism of the perovskite through the aerosol route is investigated using thermogravimetric analysis to identify the optimal reference temperature, residence time and other operational parameters in the FuAR synthesis process to obtain highly pure KBaTeBiO6 nanoparticles. It is observed that particle formation in the FuAR is based on a combination of gas-to-particle and liquid-to-particle mechanisms. The phase purity of the perovskite nanoparticles depends on the ratio of the residence time and the reaction time. The particle size is strongly affected by the precursor concentration, residence time and furnace temperature. Finally, the photocatalytic performance of the synthesized KBaTeBiO6 nanoparticles is investigated for CO2 photoreduction under UV-light. The best performing sample exhibits an average CO production rate of 180 μmol g-1 h-1 in the first half hour with a quantum efficiency of 1.19%, demonstrating KBaTeBiO6 as a promising photocatalyst for CO2 photoreduction.
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Affiliation(s)
- Hao Zhou
- Aerosol and Air Quality Research Laboratory, Department of Energy, Environmental and Chemical Engineering, Washington University in St. Louis, St. Louis, Missouri 63130, USA.
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Stanley PM, Parkulab M, Rieger B, Warnan J, Fischer RA. Understanding entrapped molecular photosystem and metal-organic framework synergy for improved solar fuel production. Faraday Discuss 2021; 231:281-297. [PMID: 34240093 DOI: 10.1039/d1fd00009h] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.7] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
Abstract
Artificial photosystems assembled from molecular complexes, such as the photocatalyst fac-ReBr(CO)3(4,4'-dcbpy) (dcbpy = dicarboxy-2,2'-bipyridine) and the photosensitiser Ru(bpy)2(5,5'-dcbpy)Cl2 (bpy = 2,2'-bipyridine), are a wide-spread approach for solar fuel production. Recently metal-organic framework (MOF) entrapping of such complexes was demonstrated as a promising concept for catalyst stabilisation and reaction environment optimisation in colloidal-based CO2 reduction. Building on this strategy, here we examined the influence of MIL-101-NH2(Al) MOF particle size, the electron donor source, and the presence of an organic base on the photocatalytic CO2-to-CO reduction performance, and the differences to homogeneous systems. A linear relation between smaller scaffold particle size and higher photocatalytic activity, longer system lifetimes for benign electron donors, and increased turnover numbers (TONs) with certain additive organic bases, were determined. This enabled understanding of key molecular catalysis phenomena and synergies in the nanoreactor-like host-guest assembly, and yielded TONs of ∼4300 over 96 h of photocatalysis under optimised conditions, surpassing homogeneous TON values and lifetimes.
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Affiliation(s)
- Philip M Stanley
- Chair of Inorganic and Metal-Organic Chemistry, Department of Chemistry and Catalysis Research Center, Technical University of Munich, Lichtenbergstraße 4, Garching, 85787, Germany. and WACKER-Chair of Macromolecular Chemistry, Department of Chemistry and Catalysis Research Center, Technical University of Munich, Lichtenbergstraße 4, Garching, 85787, Germany
| | - Mykhaylo Parkulab
- Chair of Inorganic and Metal-Organic Chemistry, Department of Chemistry and Catalysis Research Center, Technical University of Munich, Lichtenbergstraße 4, Garching, 85787, Germany.
| | - Bernhard Rieger
- WACKER-Chair of Macromolecular Chemistry, Department of Chemistry and Catalysis Research Center, Technical University of Munich, Lichtenbergstraße 4, Garching, 85787, Germany
| | - Julien Warnan
- Chair of Inorganic and Metal-Organic Chemistry, Department of Chemistry and Catalysis Research Center, Technical University of Munich, Lichtenbergstraße 4, Garching, 85787, Germany.
| | - Roland A Fischer
- Chair of Inorganic and Metal-Organic Chemistry, Department of Chemistry and Catalysis Research Center, Technical University of Munich, Lichtenbergstraße 4, Garching, 85787, Germany.
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116
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Whelan É, Steuber FW, Gunnlaugsson T, Schmitt W. Tuning photoactive metal–organic frameworks for luminescence and photocatalytic applications. Coord Chem Rev 2021. [DOI: 10.1016/j.ccr.2020.213757] [Citation(s) in RCA: 28] [Impact Index Per Article: 9.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/08/2023]
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117
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Tasaki M, Okabe Y, Iwami H, Akatsuka C, Kosugi K, Negita K, Kusaka S, Matsuda R, Kondo M, Masaoka S. Modulation of Self-Assembly Enhances the Catalytic Activity of Iron Porphyrin for CO 2 Reduction. SMALL (WEINHEIM AN DER BERGSTRASSE, GERMANY) 2021; 17:e2006150. [PMID: 33690969 DOI: 10.1002/smll.202006150] [Citation(s) in RCA: 9] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 10/02/2020] [Revised: 02/05/2021] [Indexed: 06/12/2023]
Abstract
Electrochemical reduction of CO2 in aqueous media is an important reaction to produce value-added carbon products in an environmentally and economically friendly manner. Various molecule-based catalytic systems for the reaction have been reported thus far. The key features of state-of-the-art catalytic systems in this field can be summarized as follows: 1) an iron-porphyrin-based scaffold as a catalytic center, 2) a dinuclear active center for the efficient activation of a CO2 molecule, and 3) a hydrophobic channel for the accumulation of CO2 . This article reports a novel approach to construct a catalytic system for CO2 reduction with the aforementioned three key substructures. The self-assembly of a newly designed iron-porphyrin complex bearing bulky substituents with noncovalent interaction ability forms a highly ordered crystalline solid with adjacent catalytically active sites and hydrophobic pores. The obtained crystalline solid serves as an electrocatalyst for CO2 reduction in aqueous media. Note that a relevant iron-porphyrin complex without bulky substituents cannot form a porous structure with adjacent active sites, and the catalytic performance of the crystals of this relevant iron-porphyrin complex is substantially lower than that of the newly developed catalytic system. The present study provides a novel strategy for constructing porous crystalline solids for small-molecule conversions.
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Affiliation(s)
- Masahiro Tasaki
- Department of Life and Coordination-Complex Molecular Science, Institute for Molecular Science (IMS), 5-1 Higashiyama, Myodaiji, Okazaki, Aichi, 444-8787, Japan
- Department of Structural Molecular Science, SOKENDAI (The Graduate University for Advanced Studies), Shonan Village, Hayama, Kanagawa, 240-0193, Japan
| | - Yuki Okabe
- Department of Life and Coordination-Complex Molecular Science, Institute for Molecular Science (IMS), 5-1 Higashiyama, Myodaiji, Okazaki, Aichi, 444-8787, Japan
- Department of Structural Molecular Science, SOKENDAI (The Graduate University for Advanced Studies), Shonan Village, Hayama, Kanagawa, 240-0193, Japan
| | - Hikaru Iwami
- Department of Life and Coordination-Complex Molecular Science, Institute for Molecular Science (IMS), 5-1 Higashiyama, Myodaiji, Okazaki, Aichi, 444-8787, Japan
- Department of Structural Molecular Science, SOKENDAI (The Graduate University for Advanced Studies), Shonan Village, Hayama, Kanagawa, 240-0193, Japan
- Division of Applied Chemistry, Graduate School of Engineering, Osaka University, 2-1 Yamadaoka, Suita, Osaka, 565-0871, Japan
| | - Chiharu Akatsuka
- Division of Applied Chemistry, Graduate School of Engineering, Osaka University, 2-1 Yamadaoka, Suita, Osaka, 565-0871, Japan
| | - Kento Kosugi
- Division of Applied Chemistry, Graduate School of Engineering, Osaka University, 2-1 Yamadaoka, Suita, Osaka, 565-0871, Japan
| | - Kohei Negita
- Department of Chemistry and Biotechnology, School of Engineering, Nagoya University, Chikusa-ku, Nagoya, 464-8603, Japan
| | - Sinpei Kusaka
- Department of Chemistry and Biotechnology, School of Engineering, Nagoya University, Chikusa-ku, Nagoya, 464-8603, Japan
| | - Ryotaro Matsuda
- Department of Chemistry and Biotechnology, School of Engineering, Nagoya University, Chikusa-ku, Nagoya, 464-8603, Japan
| | - Mio Kondo
- Division of Applied Chemistry, Graduate School of Engineering, Osaka University, 2-1 Yamadaoka, Suita, Osaka, 565-0871, Japan
- JST, PRESTO, 4-1-8 Honcho, Kawaguchi, 332-0012, Japan
- Innovative Catalysis Science Division, Institute for Open and Transdisciplinary Research Initiatives (ICS-OTRI), Osaka University, Suita, Osaka, 565-0871, Japan
| | - Shigeyuki Masaoka
- Division of Applied Chemistry, Graduate School of Engineering, Osaka University, 2-1 Yamadaoka, Suita, Osaka, 565-0871, Japan
- Innovative Catalysis Science Division, Institute for Open and Transdisciplinary Research Initiatives (ICS-OTRI), Osaka University, Suita, Osaka, 565-0871, Japan
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118
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Cuéllar E, Diez-Varga A, Torroba T, Domingo-Legarda P, Alemán J, Cabrera S, Martín-Alvarez JM, Miguel D, Villafañe F. Luminescent cis-Bis(bipyridyl)ruthenium(II) Complexes with 1,2-Azolylamidino Ligands: Photophysical, Electrochemical Studies, and Photocatalytic Oxidation of Thioethers. Inorg Chem 2021; 60:7008-7022. [PMID: 33905238 PMCID: PMC8812113 DOI: 10.1021/acs.inorgchem.0c03389] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/30/2022]
Abstract
New 1,2-azolylamidino complexes cis-[Ru(bipy)2(NH═C(R)az*-κ2N,N)](OTf)2 (R = Me, Ph; az* = pz, indz, dmpz) are synthesized via chloride abstraction after a subsequent base-catalyzed coupling of a nitrile with the previously coordinated 1,2-azole. The synthetic procedure allows the easy obtainment of complexes having different electronic and steric 1,2-azoylamidino ligands. All of the compounds have been characterized by 1H, 13C, and 15N NMR and IR spectroscopy and by monocrystal X-ray diffraction. Photophysical studies support their phosphorescence, whereas their electrochemistry reveals reversible RuII/RuIII oxidations between +1.13 and +1.25 V (vs SCE). The complexes have been successfully used as catalysts in the photooxidation of different thioethers, the complex cis-[Ru(bipy)2(NH═C(Me)dmpz-κ2N,N)]2+ showing better catalytic performance in comparison to that of [Ru(bipy)3]2+. Moreover, the significant catalytic performance of the dimethylpyrazolylamidino complex is applied to the preparation of the drug modafinil, which is obtained using ambient oxygen as an oxidant. Finally, mechanistic assays suggest that the oxidation reaction follows a photoredox route via oxygen radical anion formation.
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Affiliation(s)
- Elena Cuéllar
- GIR MIOMeT-IU Cinquima-Química Inorgánica, Facultad de Ciencias, Campus Miguel Delibes, Universidad de Valladolid, 47011 Valladolid, Spain
| | - Alberto Diez-Varga
- Departamento de Química, Facultad de Ciencias, Universidad de Burgos, 09001 Burgos, Spain
| | - Tomás Torroba
- Departamento de Química, Facultad de Ciencias, Universidad de Burgos, 09001 Burgos, Spain
| | - Pablo Domingo-Legarda
- Departamento de Química Inorgánica, Facultad de Ciencias, Universidad Autónoma de Madrid, 28049 Madrid, Spain
| | - José Alemán
- Departamento de Química Inorgánica, Facultad de Ciencias, Universidad Autónoma de Madrid, 28049 Madrid, Spain
| | - Silvia Cabrera
- Departamento de Química Inorgánica, Facultad de Ciencias, Universidad Autónoma de Madrid, 28049 Madrid, Spain
| | - Jose M Martín-Alvarez
- GIR MIOMeT-IU Cinquima-Química Inorgánica, Facultad de Ciencias, Campus Miguel Delibes, Universidad de Valladolid, 47011 Valladolid, Spain
| | - Daniel Miguel
- GIR MIOMeT-IU Cinquima-Química Inorgánica, Facultad de Ciencias, Campus Miguel Delibes, Universidad de Valladolid, 47011 Valladolid, Spain
| | - Fernando Villafañe
- GIR MIOMeT-IU Cinquima-Química Inorgánica, Facultad de Ciencias, Campus Miguel Delibes, Universidad de Valladolid, 47011 Valladolid, Spain
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120
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Alcala-Torano R, Halloran N, Gwerder N, Sommer DJ, Ghirlanda G. Light-Driven CO 2 Reduction by Co-Cytochrome b 562. Front Mol Biosci 2021; 8:609654. [PMID: 33937320 PMCID: PMC8082397 DOI: 10.3389/fmolb.2021.609654] [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: 09/23/2020] [Accepted: 01/11/2021] [Indexed: 11/23/2022] Open
Abstract
The current trend in atmospheric carbon dioxide concentrations is causing increasing concerns for its environmental impacts, and spurring the developments of sustainable methods to reduce CO2 to usable molecules. We report the light-driven CO2 reduction in water in mild conditions by artificial protein catalysts based on cytochrome b 562 and incorporating cobalt protoporphyrin IX as cofactor. Incorporation into the protein scaffolds enhances the intrinsic reactivity of the cobalt porphyrin toward proton reduction and CO generation. Mutations around the binding site modulate the activity of the enzyme, pointing to the possibility of further improving catalytic activity through rational design or directed evolution.
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Affiliation(s)
| | | | | | | | - Giovanna Ghirlanda
- School of Molecular Sciences, Arizona State University, Tempe, AZ, United States
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121
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Yuan H, Cheng B, Lei J, Jiang L, Han Z. Promoting photocatalytic CO 2 reduction with a molecular copper purpurin chromophore. Nat Commun 2021; 12:1835. [PMID: 33758178 PMCID: PMC7987958 DOI: 10.1038/s41467-021-21923-9] [Citation(s) in RCA: 41] [Impact Index Per Article: 13.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/27/2020] [Accepted: 02/11/2021] [Indexed: 11/09/2022] Open
Abstract
CO2 reduction through artificial photosynthesis represents a prominent strategy toward the conversion of solar energy into fuels or useful chemical feedstocks. In such configuration, designing highly efficient chromophores comprising earth-abundant elements is essential for both light harvesting and electron transfer. Herein, we report that a copper purpurin complex bearing an additional redox-active center in natural organic chromophores is capable to shift the reduction potential 540 mV more negative than its organic dye component. When this copper photosensitizer is employed with an iron porphyrin as the catalyst and 1,3-dimethyl-2-phenyl-2,3-dihydro-1H-benzo[d]imidazole as the sacrificial reductant, the system achieves over 16100 turnover number of CO from CO2 with a 95% selectivity (CO vs H2) under visible-light irradiation, which is among the highest reported for a homogeneous noble metal-free system. This work may open up an effective approach for the rational design of highly efficient chromophores in artificial photosynthesis.
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Affiliation(s)
- Huiqing Yuan
- MOE Key Laboratory of Bioinorganic and Synthetic Chemistry, School of Chemistry, Sun Yat-sen University, Guangzhou, 510275, China
| | - Banggui Cheng
- MOE Key Laboratory of Bioinorganic and Synthetic Chemistry, School of Chemistry, Sun Yat-sen University, Guangzhou, 510275, China
| | - Jingxiang Lei
- MOE Key Laboratory of Bioinorganic and Synthetic Chemistry, School of Chemistry, Sun Yat-sen University, Guangzhou, 510275, China
| | - Long Jiang
- MOE Key Laboratory of Bioinorganic and Synthetic Chemistry, School of Chemistry, Sun Yat-sen University, Guangzhou, 510275, China
| | - Zhiji Han
- MOE Key Laboratory of Bioinorganic and Synthetic Chemistry, School of Chemistry, Sun Yat-sen University, Guangzhou, 510275, China.
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122
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Cabelof AC, Carta V, Caulton KG. A proton-responsive ligand becomes a dimetal linker for multisubstrate assembly via nitrate deoxygenation. Chem Commun (Camb) 2021; 57:2780-2783. [PMID: 33598673 DOI: 10.1039/d0cc07886g] [Citation(s) in RCA: 10] [Impact Index Per Article: 3.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/15/2022]
Abstract
A bidentate pyrazolylpyridine ligand (HL) was installed on divalent nickel to give [(HL)2Ni(NO3)]NO3. This compound reacts with a bis-silylated heterocycle, 1,4-bis-(trimethylsilyl)-1,4-diaza-2,5-cyclohexadiene (TMS2Pz) to simultaneously reduce one of the nitrate ligands and deprotonate one of the HL ligands, giving octahedral (HL)(L-)Ni(NO3). The mononitrate species formed is then further reacted with TMS2Pz to doubly deoxygenate nitrate and form [(L-)Ni(NO)]2, dimeric via bridging pyrazolate with bent nitrosyl ligands, representing a two-electron reduction of coordinated nitrate. Independent synthesis of a dimeric species [(L-)Ni(Br)]2 is reported and effectively assembles two metals with better atom economy.
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Affiliation(s)
- Alyssa C Cabelof
- Department of Chemistry, Indiana University, 800 E. Kirkwood Ave., Bloomington, IN 47401, USA.
| | - Veronica Carta
- Department of Chemistry, Indiana University, 800 E. Kirkwood Ave., Bloomington, IN 47401, USA.
| | - Kenneth G Caulton
- Department of Chemistry, Indiana University, 800 E. Kirkwood Ave., Bloomington, IN 47401, USA.
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123
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Case DR, Spear A, Henwood AF, Nanao M, Dampf S, Korter TM, Gunnlaugsson T, Zubieta J, Doyle RP. [Re(CO) 3(5-PAN)Cl], a rhenium(I) naphthalimide complex for the visible light photocatalytic reduction of CO 2. Dalton Trans 2021; 50:3479-3486. [PMID: 33660719 DOI: 10.1039/d0dt04116e] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.7] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
Abstract
A rhenium(i) naphthalimide complex [Re(CO)3(5-PAN)Cl] (Re(5-PAN); 5-PAN = 1-(1,10-phenanthroline)-4-nitro-naphthalimide) was synthesized, characterized, and evaluated as a photocatalyst for CO2 reduction. Characterization included use of MALDI-ToF mass spectrometry, FT-IR, RAMAN, 1H and 13C NMR, elemental analysis, electronic absorption and emission spectroscopy, single crystal X-ray diffraction, DFT and cyclic voltammetry. Photocatalytic (406 nm) reduction of 13CO2 to formate (H13COO) in the presence of this catalyst was tracked via13C NMR. Results support Re5-PAN (φ = 0.021) functioning as a catalyst for the reduction of CO2 (maximum turn-over 48-50 at 300 equiv. triethylamine as the sacrificial electron donor).
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Affiliation(s)
- Derek R Case
- 111 College Place, Department of Chemistry, Syracuse University, Syracuse, NY 13244, USA.
| | - Alyssa Spear
- 111 College Place, Department of Chemistry, Syracuse University, Syracuse, NY 13244, USA.
| | - Adam F Henwood
- School of Chemistry and Trinity Biomedical Sciences Institute, The University of Dublin, Trinity College Dublin, Dublin 2, Ireland.
| | - Max Nanao
- European Synchrotron Radiation Facility, Structural Biology Group, 71, Avenue des Martyrs, F-38000 Grenoble, France
| | - Sara Dampf
- 111 College Place, Department of Chemistry, Syracuse University, Syracuse, NY 13244, USA.
| | - Timothy M Korter
- 111 College Place, Department of Chemistry, Syracuse University, Syracuse, NY 13244, USA.
| | - Thorfinnur Gunnlaugsson
- School of Chemistry and Trinity Biomedical Sciences Institute, The University of Dublin, Trinity College Dublin, Dublin 2, Ireland.
| | - Jon Zubieta
- 111 College Place, Department of Chemistry, Syracuse University, Syracuse, NY 13244, USA.
| | - Robert P Doyle
- 111 College Place, Department of Chemistry, Syracuse University, Syracuse, NY 13244, USA.
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124
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Manamperi HD, Moore CE, Turro C. Dirhodium complexes as electrocatalysts for CO 2 reduction to HCOOH: role of steric hindrance on selectivity. Chem Commun (Camb) 2021; 57:1635-1638. [PMID: 33462571 DOI: 10.1039/d0cc07659g] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/01/2023]
Abstract
A series of Rh2(ii,ii) complexes were shown to electrocatalytically reduce CO2 to HCOOH. Electrochemical and spectroelectrochemical studies reveal a correlation between catalytic selectivity and efficiency with the steric bulk at the axial sites afforded by the bridging ligands. Mechanistic studies point to the presence of a Rh2(ii,i)-H hydride as a key intermediate in the catalytic cycle.
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Affiliation(s)
- Hemanthi D Manamperi
- Department of Chemistry and Biochemistry, The Ohio State University, Columbus, OH 43214, USA.
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125
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Nguyen NT, Xia M, Duchesne PN, Wang L, Mao C, Jelle AA, Yan T, Li P, Lu ZH, Ozin GA. Enhanced CO 2 Photocatalysis by Indium Oxide Hydroxide Supported on TiN@TiO 2 Nanotubes. NANO LETTERS 2021; 21:1311-1319. [PMID: 33493396 DOI: 10.1021/acs.nanolett.0c04008] [Citation(s) in RCA: 14] [Impact Index Per Article: 4.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/12/2023]
Abstract
Herein is developed a ternary heterostructured catalyst, based on a periodic array of 1D TiN nanotubes, with a TiO2 nanoparticulate intermediate layer and a In2O3-x(OH)y nanoparticulate shell for improved performance in the photocatalytic reverse water gas shift reaction. It is demonstrated that the ordering of the three components in the heterostructure sensitively determine its activity in CO2 photocatalysis. Specifically, TiN nanotubes not only provide a photothermal driving force for the photocatalytic reaction, owing to their strong optical absorption properties, but they also serve as a crucial scaffold for minimizing the required quantity of In2O3-x(OH)y nanoparticles, leading to an enhanced CO production rate. Simultaneously, the TiO2 nanoparticle layer supplies photogenerated electrons and holes that are transferred to active sites on In2O3-x(OH)y nanoparticles and participate in the reactions occurring at the catalyst surface.
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Affiliation(s)
- Nhat Truong Nguyen
- Solar Fuels Group, Department of Chemistry, University of Toronto, 80 St. George Street, Toronto, Ontario M5S 3H6, Canada
| | - Meikun Xia
- Solar Fuels Group, Department of Chemistry, University of Toronto, 80 St. George Street, Toronto, Ontario M5S 3H6, Canada
| | - Paul N Duchesne
- Solar Fuels Group, Department of Chemistry, University of Toronto, 80 St. George Street, Toronto, Ontario M5S 3H6, Canada
| | - Lu Wang
- Solar Fuels Group, Department of Chemistry, University of Toronto, 80 St. George Street, Toronto, Ontario M5S 3H6, Canada
- School of Science and Engineering, The Chinese University of Hong Kong, Shenzhen, Guangdong 518172, P.R. China
| | - Chengliang Mao
- Solar Fuels Group, Department of Chemistry, University of Toronto, 80 St. George Street, Toronto, Ontario M5S 3H6, Canada
- Key Laboratory of Pesticide and Chemical Biology of Ministry of Education, Institute of Environmental and Applied Chemistry, College of Chemistry, Central China Normal University, Wuhan 430079, P.R. China
| | - Abdinoor A Jelle
- Solar Fuels Group, Department of Chemistry, University of Toronto, 80 St. George Street, Toronto, Ontario M5S 3H6, Canada
| | - Tingjiang Yan
- The Key Laboratory of Life-Organic Analysis, College of Chemistry and Chemical Engineering, Qufu Normal University, Qufu, Shandong 273165, P.R. China
| | - Peicheng Li
- Department of Materials Science and Engineering, University of Toronto, 184 College Street, Suite 140, Toronto, Ontario M5S 3E4, Canada
| | - Zheng-Hong Lu
- Department of Materials Science and Engineering, University of Toronto, 184 College Street, Suite 140, Toronto, Ontario M5S 3E4, Canada
| | - Geoffrey A Ozin
- Solar Fuels Group, Department of Chemistry, University of Toronto, 80 St. George Street, Toronto, Ontario M5S 3H6, Canada
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126
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Lu IC, Tsai CN, Lin YT, Hung SY, Chao VPS, Yin CW, Luo DW, Chen HY, Endicott JF, Chen YJ. Near-IR Charge-Transfer Emission at 77 K and Density Functional Theory Modeling of Ruthenium(II)-Dipyrrinato Chromophores: High Phosphorescence Efficiency of the Emitting State Related to Spin-Orbit Coupling Mediation of Intensity from Numerous Low-Energy Singlet Excited States. J Phys Chem A 2021; 125:903-919. [PMID: 33470828 DOI: 10.1021/acs.jpca.0c05910] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/28/2022]
Abstract
Efficient charge-transfer (CT) phosphorescence in the near-IR (NIR) spectral region is reported for four substituted Ru-(R-dipyrrinato) complexes, [Ru(bpy)2(R-dipy)](PF6), where bpy is 2,2'-bipyridine and the substituent R is phenyl (ph), 2,4,6-trimethylphenyl, 4-carboxyphenyl (HOOC-ph), or 4-pyridinyl. The experimentally determined phosphorescence efficiency, ιem(p) = kRAD(p)/(νem(p))3 (where kRAD(p) and νem(p) are the phosphorescence rate constant and the phosphorescence frequency, respectively), of the [Ru(bpy)2(R-dipy)]+ complexes was approximately double that of [Ru(bpy)(Am)4]2+ complexes (Am = ammine ligand) in the NIR region. Density functional theory (DFT) modeling indicated two strikingly different electronic configurations of the triplet emitting state (Te) in the two types of complexes. The Te of [Ru(bpy)2(R-dipy)]+ complexes shows a CT-type corresponding to the metal-to-ligand charge transfer (MLCT)-(Ru-(R-dipy)) and the ππ*-(R-dipy) moiety configurations, and the Te state in the [Ru(bpy)(Am)4]2+ complexes corresponds to an approximately MLCT excited state consisting of mostly MLCT-(Ru-bpy) with a minimal ππ*(bpy) contribution. DFT modeling also indicated that the low-energy singlet excited states in the Te geometry (Sn(T)) of the [Ru(bpy)2(ph-dipy)]+ complex consist of numerous CT-Sn(T)-type states of the Ru-dipy and Ru-bpy moieties, whereas the [Ru(bpy)(Am)4]2+ ions show quite simple MLCT-Sn(T)-type states of the Ru-bpy moiety. Based on experimental observations, DFT modeling, and the plain spin-orbit coupling (SOC) principle, we conclude that the remarkably high ιem(p) amplitudes of the [Ru(bpy)2(R-dipy)]+ complexes relative to those of [Ru(bpy)(Am)4]2+ complexes can be attributed to the relatively substantial contribution of intrinsic SOC-mediated intensity stealing from the numerous low-energy CT-type Sn(T) states.
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Affiliation(s)
- I-Chen Lu
- Department of Chemistry, Fu-Jen Catholic University, New Taipei City 24205, Taiwan, ROC
| | - Chia Nung Tsai
- Department of Chemistry, Fu-Jen Catholic University, New Taipei City 24205, Taiwan, ROC
| | - Yu-Ting Lin
- Department of Chemistry, Fu-Jen Catholic University, New Taipei City 24205, Taiwan, ROC
| | - Shin-Yi Hung
- Department of Chemistry, Fu-Jen Catholic University, New Taipei City 24205, Taiwan, ROC
| | - Vincent P S Chao
- Department of Chemistry, Fu-Jen Catholic University, New Taipei City 24205, Taiwan, ROC
| | - Chi-Wei Yin
- Department of Chemistry, Fu-Jen Catholic University, New Taipei City 24205, Taiwan, ROC
| | - Dao-Wen Luo
- Instruments Center and Department of Chemistry, National Chung-Hsing University, Taichung 402, Taiwan, ROC
| | - Hsing-Yin Chen
- Department of Medicinal and Applied Chemistry, Kaohsiung Medical University, Kaohsiung 80708, Taiwan, ROC
| | - John F Endicott
- Department of Chemistry, Wayne State University, Detroit, Michigan 48202, United States
| | - Yuan Jang Chen
- Department of Chemistry, Fu-Jen Catholic University, New Taipei City 24205, Taiwan, ROC
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He Y, Li C, Chen X, Rao H, Shi Z, Feng S. Critical Aspects of Metal-Organic Framework-Based Materials for Solar-Driven CO 2 Reduction into Valuable Fuels. GLOBAL CHALLENGES (HOBOKEN, NJ) 2021; 5:2000082. [PMID: 33552555 PMCID: PMC7857132 DOI: 10.1002/gch2.202000082] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Figures] [Subscribe] [Scholar Register] [Received: 08/27/2020] [Revised: 11/08/2020] [Indexed: 06/12/2023]
Abstract
Photoreduction of CO2 into value-added fuels is one of the most promising strategies for tackling the energy crisis and mitigating the "greenhouse effect." Recently, metal-organic frameworks (MOFs) have been widely investigated in the field of CO2 photoreduction owing to their high CO2 uptake and adjustable functional groups. The fundamental factors and state-of-the-art advancements in MOFs for photocatalytic CO2 reduction are summarized from the critical perspectives of light absorption, carrier dynamics, adsorption/activation, and reaction on the surface of photocatalysts, which are the three main critical aspects for CO2 photoreduction and determine the overall photocatalytic efficiency. In view of the merits of porous materials, recent progress of three other types of porous materials are also briefly summarized, namely zeolite-based, covalent-organic frameworks based (COFs-based), and porous semiconductor or organic polymer based photocatalysts. The remarkable performance of these porous materials for solar-driven CO2 reduction systems is highlighted. Finally, challenges and opportunities of porous materials for photocatalytic CO2 reduction are presented, aiming to provide a new viewpoint for improving the overall photocatalytic CO2 reduction efficiency with porous materials.
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Affiliation(s)
- Yiqiang He
- State Key Laboratory of Inorganic Synthesis and Preparative ChemistryJilin UniversityChangchun130012P. R. China
| | - Chunguang Li
- State Key Laboratory of Inorganic Synthesis and Preparative ChemistryJilin UniversityChangchun130012P. R. China
| | - Xiao‐Bo Chen
- School of EngineeringRMIT UniversityCarltonVIC3053Australia
| | - Heng Rao
- State Key Laboratory of Inorganic Synthesis and Preparative ChemistryJilin UniversityChangchun130012P. R. China
- International Center of Future ScienceJilin UniversityChangchun130012P. R. China
| | - Zhan Shi
- State Key Laboratory of Inorganic Synthesis and Preparative ChemistryJilin UniversityChangchun130012P. R. China
| | - Shouhua Feng
- State Key Laboratory of Inorganic Synthesis and Preparative ChemistryJilin UniversityChangchun130012P. R. China
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128
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Mesoporous Sn(IV) Doping DFNS Supported BaMnO3 Nanoparticles for Formylation of Amines Using Carbon Dioxide. Catal Letters 2021. [DOI: 10.1007/s10562-020-03307-8] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/23/2022]
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129
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Lin S, Turro C. Dirhodium Complexes as Panchromatic Sensitizers, Electrocatalysts, and Photocatalysts. Chemistry 2021; 27:5379-5387. [DOI: 10.1002/chem.202003950] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/27/2020] [Revised: 10/09/2020] [Indexed: 11/09/2022]
Affiliation(s)
- Shaoyang Lin
- Department of Chemistry and Biochemistry The Ohio State University 100 W. 18th Ave. Columbus OH 43210 USA
| | - Claudia Turro
- Department of Chemistry and Biochemistry The Ohio State University 100 W. 18th Ave. Columbus OH 43210 USA
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130
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Recent Progress in Plasmonic Hybrid Photocatalysis for CO2 Photoreduction and C–C Coupling Reactions. Catalysts 2021. [DOI: 10.3390/catal11020155] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.7] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/01/2023] Open
Abstract
Plasmonic hybrid nanostructures have been investigated as attractive heterogeneous photocatalysts that can utilize sunlight to produce valuable chemicals. In particular, the efficient photoconversion of CO2 into a stable hydrocarbon with sunlight can be a promising strategy to achieve a sustainable human life on Earth. The next step for hydrocarbons once obtained from CO2 is the carbon–carbon coupling reactions to produce a valuable chemical for energy storage or fine chemicals. For these purposes, plasmonic nanomaterials have been widely investigated as a visible-light-induced photocatalyst to achieve increased efficiency of photochemical reactions with sunlight. In this review, we discuss recent achievements involving plasmonic hybrid photocatalysts that have been investigated for CO and CO2 photoreductions to form multi-carbon products and for C–C coupling reactions, such as the Suzuki–Miyaura coupling reactions.
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131
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Bilger JB, Kerzig C, Larsen CB, Wenger OS. A Photorobust Mo(0) Complex Mimicking [Os(2,2'-bipyridine) 3] 2+ and Its Application in Red-to-Blue Upconversion. J Am Chem Soc 2021; 143:1651-1663. [PMID: 33434435 DOI: 10.1021/jacs.0c12805] [Citation(s) in RCA: 53] [Impact Index Per Article: 17.7] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/17/2022]
Abstract
Osmium(II) polypyridines are a well-known class of complexes with luminescent metal-to-ligand charge-transfer (MLCT) excited states that are currently experiencing a revival due to their application potential in organic photoredox catalysis, triplet-triplet annihilation upconversion, and phototherapy. At the same time, there is increased interest in the development of photoactive complexes made from Earth-abundant rather than precious metals. Against this background, we present a homoleptic Mo(0) complex with a new diisocyanide ligand exhibiting different bite angles and a greater extent of π-conjugation than previously reported related chelates. This new design leads to deep red emission, which is unprecedented for homoleptic arylisocyanide complexes of group 6 metals. With a 3MLCT lifetime of 56 ns, an emission band maximum at 720 nm, and a photoluminescence quantum yield of 1.5% in deaerated toluene at room temperature, the photophysical properties are reminiscent of the prototypical [Os(2,2'-bipyridine)3]2+ complex. Under 635 nm irradiation with a cw-laser, the new Mo(0) complex sensitizes triplet-triplet annihilation upconversion of 9,10-diphenylanthracene (DPA), resulting in delayed blue fluorescence with an anti-Stokes shift of 0.93 eV. The photorobustness of the Mo(0) complex and the upconversion quantum yield are high enough to generate a flux of upconverted light that can serve as a sufficiently potent irradiation source for a blue-light-driven photoisomerization reaction. These findings are relevant in the greater contexts of designing new luminophores and photosensitizers for use in red-light-driven photocatalysis, photochemical upconversion, light-harvesting, and phototherapy.
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Affiliation(s)
- Jakob B Bilger
- Department of Chemistry, University of Basel, St. Johanns-Ring 19, 4056 Basel, Switzerland
| | - Christoph Kerzig
- Department of Chemistry, University of Basel, St. Johanns-Ring 19, 4056 Basel, Switzerland
| | - Christopher B Larsen
- Department of Chemistry, University of Basel, St. Johanns-Ring 19, 4056 Basel, Switzerland
| | - Oliver S Wenger
- Department of Chemistry, University of Basel, St. Johanns-Ring 19, 4056 Basel, Switzerland
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132
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Wei YP, Yang S, Wang P, Guo JH, Huang J, Sun WY. Iron(iii)-bipyridine incorporated metal-organic frameworks for photocatalytic reduction of CO 2 with improved performance. Dalton Trans 2021; 50:384-390. [PMID: 33320135 DOI: 10.1039/d0dt03500a] [Citation(s) in RCA: 19] [Impact Index Per Article: 6.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
Abstract
Metal-organic frameworks (MOFs) represent an emerging class of platforms to assemble single site photocatalysts for artificial photosynthesis. In this work, we report a new CO2 reduction photocatalyst (UiO-68-Fe-bpy) based on a robust Zr(iv)-MOF platform with incorporated Fe(bpy)Cl3 (bpy refers to the 4'-methyl-[2,2'-bipyridine] moiety) via amine-aldehyde condensation. We show that this hybrid catalyst can reduce CO2 to form CO under visible light illumination with excellent selectivity and enhanced activity with respect to its parent MOF and corresponding homogeneous counterpart. Using steady state and transient absorption (TA) spectroscopy, we show that the enhanced photocatalytic activity of UiO-68-Fe-bpy is attributed to the elongated excited state lifetime of Fe(bpy)Cl3 after being incorporated to the UiO-68-NH2 platform. This work demonstrates the great potential of MOFs as a next generation platform for solar fuel conversion.
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Affiliation(s)
- Yuan-Ping Wei
- Coordination Chemistry Institute, State Key Laboratory of Coordination Chemistry, School of Chemistry and Chemical Engineering, Nanjing National Laboratory of Microstructures, Collaborative Innovation Center of Advanced Microstructures, Nanjing University, Nanjing 210023, China.
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133
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Stanley PM, Thomas C, Thyrhaug E, Urstoeger A, Schuster M, Hauer J, Rieger B, Warnan J, Fischer RA. Entrapped Molecular Photocatalyst and Photosensitizer in Metal–Organic Framework Nanoreactors for Enhanced Solar CO2 Reduction. ACS Catal 2021. [DOI: 10.1021/acscatal.0c04673] [Citation(s) in RCA: 37] [Impact Index Per Article: 12.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/06/2023]
Affiliation(s)
- Philip M. Stanley
- Chair of Inorganic and Metal-Organic Chemistry, Department of Chemistry and Catalysis Research Center, Technical University of Munich, Lichtenbergstraße 4, Garching 85787, Germany
- WACKER-Chair of Macromolecular Chemistry, Department of Chemistry and Catalysis Research Center, Technical University of Munich, Lichtenbergstraße 4, Garching 85787, Germany
| | - Christopher Thomas
- WACKER-Chair of Macromolecular Chemistry, Department of Chemistry and Catalysis Research Center, Technical University of Munich, Lichtenbergstraße 4, Garching 85787, Germany
| | - Erling Thyrhaug
- Associate Professorship of Dynamic Spectroscopy, Department of Chemistry, Technical University of Munich, Lichtenbergstraße 4, Garching 85787, Germany
| | - Alexander Urstoeger
- Division of Analytical Chemistry, Department of Chemistry, Technical University of Munich, Lichtenbergstraße 4, Garching 85787, Germany
| | - Michael Schuster
- Division of Analytical Chemistry, Department of Chemistry, Technical University of Munich, Lichtenbergstraße 4, Garching 85787, Germany
| | - Jürgen Hauer
- Associate Professorship of Dynamic Spectroscopy, Department of Chemistry, Technical University of Munich, Lichtenbergstraße 4, Garching 85787, Germany
| | - Bernhard Rieger
- WACKER-Chair of Macromolecular Chemistry, Department of Chemistry and Catalysis Research Center, Technical University of Munich, Lichtenbergstraße 4, Garching 85787, Germany
| | - Julien Warnan
- Chair of Inorganic and Metal-Organic Chemistry, Department of Chemistry and Catalysis Research Center, Technical University of Munich, Lichtenbergstraße 4, Garching 85787, Germany
| | - Roland A. Fischer
- Chair of Inorganic and Metal-Organic Chemistry, Department of Chemistry and Catalysis Research Center, Technical University of Munich, Lichtenbergstraße 4, Garching 85787, Germany
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134
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Li J, Ma K, He Y, Ren S, Li C, Chen XB, Shi Z, Feng S. Porous organic polymer enriched in Re functional units and Lewis base sites for efficient CO 2 photoreduction. Catal Sci Technol 2021. [DOI: 10.1039/d1cy01311d] [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
A porous organic polymer, BTN-Re, which contains two functional units, exhibits outstanding ability for CO2 photoreduction.
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Affiliation(s)
- Jixin Li
- State Key Laboratory of Inorganic Synthesis and Preparative Chemistry, College of Chemistry, Jilin University, Changchun 130012, PR China
| | - Kaiyue Ma
- State Key Laboratory of Inorganic Synthesis and Preparative Chemistry, College of Chemistry, Jilin University, Changchun 130012, PR China
| | - Yiqiang He
- State Key Laboratory of Inorganic Synthesis and Preparative Chemistry, College of Chemistry, Jilin University, Changchun 130012, PR China
| | - Siyuan Ren
- State Key Laboratory of Inorganic Synthesis and Preparative Chemistry, College of Chemistry, Jilin University, Changchun 130012, PR China
| | - Chunguang Li
- State Key Laboratory of Inorganic Synthesis and Preparative Chemistry, College of Chemistry, Jilin University, Changchun 130012, PR China
| | - Xiao-Bo Chen
- School of Engineering, RMIT University, Carlton, VIC 3053, Australia
| | - Zhan Shi
- State Key Laboratory of Inorganic Synthesis and Preparative Chemistry, College of Chemistry, Jilin University, Changchun 130012, PR China
| | - Shouhua Feng
- State Key Laboratory of Inorganic Synthesis and Preparative Chemistry, College of Chemistry, Jilin University, Changchun 130012, PR China
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135
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Arora V, Narjinari H, Nandi PG, Kumar A. Recent advances in pincer-nickel catalyzed reactions. Dalton Trans 2021; 50:3394-3428. [PMID: 33595564 DOI: 10.1039/d0dt03593a] [Citation(s) in RCA: 23] [Impact Index Per Article: 7.7] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/12/2022]
Abstract
Organometallic catalysts have played a key role in accomplishing numerous synthetically valuable organic transformations that are either otherwise not possible or inefficient. The use of precious, sparse and toxic 4d and 5d metals are an apparent downside of several such catalytic systems despite their immense success over the last several decades. The use of complexes containing Earth-abundant, inexpensive and less hazardous 3d metals, such as nickel, as catalysts for organic transformations has been an emerging field in recent times. In particular, the versatile nature of the corresponding pincer-metal complexes, which offers great control of their reactivity via countless variations, has garnered great interest among organometallic chemists who are looking for greener and cheaper alternatives. In this context, the current review attempts to provide a glimpse of recent developments in the chemistry of pincer-nickel catalyzed reactions. Notably, there have been examples of pincer-nickel catalyzed reactions involving two electron changes via purely organometallic mechanisms that are strikingly similar to those observed with heavier Pd and Pt analogues. On the other hand, there have been distinct differences where the pincer-nickel complexes catalyze single-electron radical reactions. The applicability of pincer-nickel complexes in catalyzing cross-coupling reactions, oxidation reactions, (de)hydrogenation reactions, dehydrogenative coupling, hydrosilylation, hydroboration, C-H activation and carbon dioxide functionalization has been reviewed here from synthesis and mechanistic points of view. The flurry of global pincer-nickel related activities offer promising avenues in catalyzing synthetically valuable organic transformations.
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Affiliation(s)
- Vinay Arora
- Department of Chemistry, Indian Institute of Technology Guwahati, Guwahati-781039, Assam, India.
| | - Himani Narjinari
- Department of Chemistry, Indian Institute of Technology Guwahati, Guwahati-781039, Assam, India.
| | - Pran Gobinda Nandi
- Department of Chemistry, Indian Institute of Technology Guwahati, Guwahati-781039, Assam, India.
| | - Akshai Kumar
- Department of Chemistry, Indian Institute of Technology Guwahati, Guwahati-781039, Assam, India. and Centre for Nanotechnology, Indian Institute of Technology Guwahati, Guwahati-781039, Assam, India
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136
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Mo Y, Wang C, Xiao L, Chen W, Lu W. Artificial light-harvesting 2D photosynthetic systems with iron phthalocyanine/graphitic carbon nitride composites for highly efficient CO2 reduction. Catal Sci Technol 2021. [DOI: 10.1039/d1cy00858g] [Citation(s) in RCA: 6] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/10/2023]
Abstract
Fabricating high-efficient 2D artificial photosynthetic systems for CO2 reduction based on phthalocyanine/graphitic carbon nitride composites.
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Affiliation(s)
- Yiping Mo
- National Engineering Lab for Textile Fiber Materials & Processing Technology (Zhejiang), Zhejiang Sci-Tech University, Hangzhou 310018, China
| | - Chun Wang
- National Engineering Lab for Textile Fiber Materials & Processing Technology (Zhejiang), Zhejiang Sci-Tech University, Hangzhou 310018, China
| | - Longfei Xiao
- National Engineering Lab for Textile Fiber Materials & Processing Technology (Zhejiang), Zhejiang Sci-Tech University, Hangzhou 310018, China
| | - Wenxing Chen
- National Engineering Lab for Textile Fiber Materials & Processing Technology (Zhejiang), Zhejiang Sci-Tech University, Hangzhou 310018, China
| | - Wangyang Lu
- National Engineering Lab for Textile Fiber Materials & Processing Technology (Zhejiang), Zhejiang Sci-Tech University, Hangzhou 310018, China
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137
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Abeadi N, Zhiani R, Motavalizadehkakhky A, Omidvar M, Sadat Hosseiny M. FPS/[Fe(Bpy)3]2+ NPs as a nanocatalyst for production of quinoline-2-ones through the annulation of ortho-heteroaryl anilines and CO2. INORG CHEM COMMUN 2021. [DOI: 10.1016/j.inoche.2020.108356] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/22/2022]
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138
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Kapturkiewicz A, Kamecka A. Luminescence properties of [Ir(C^N) 2(N^N)] + complexes: relations between DFT computation results and emission band-shape analysis data. RSC Adv 2021; 11:29308-29322. [PMID: 35492067 PMCID: PMC9040651 DOI: 10.1039/d1ra05430a] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/15/2021] [Accepted: 08/26/2021] [Indexed: 12/01/2022] Open
Abstract
Luminescence properties of two series of [Ir(C^N)2(N^N)]+ complexes bearing deprotonated 1-phenyl-1H-pyrazole or 1-(2,4-difluorophenyl)-1H-pyrazole as cyclometalating C^N ligands and different α-diimines (2,2′-bipyridine, 1,10-phenanthroline and their derivatives) as ancillary N^N ligands have been studied in acetonitrile solutions at room temperature and in 77 K methanol/ethanol (1 : 1) matrices. Ligand and temperature induced changes in the nature of the emissive 3*[Ir(C^N)2(N^N)]+ species result in well-pronounced changes in their emission properties like emission wavelength, emission quantum yields and emission lifetimes. Depending on the nature of the coordinated C^N and N^N ligands and/or the measurement temperature, the investigated luminophores exhibit emissions arising from the intraligand transitions localized within the N^N ligand or from the metal-to-ligand charge-transfer transitions involving the Ir(C^N)2+ and N^N moieties as confirmed by means of the DFT computations. The computed DFT energies of the excited 3*[Ir(C^N)2(N^N)]+ states and outer/inner reorganization energies associated with the S0 ← 3*[Ir(C^N)2(N^N)]+ transitions remain in nice agreement with those available from the performed emission band-shape analyses. The observed agreement implies ordinary DFT computations at the B3LYP/LANL2DZ/6-31G(d,p) level of theory, even performed neglecting the spin–orbit phenomena, as enough accurate in the quantitative prediction of the most important parameters characterizing the investigated [Ir(C^N)2(N^N)]+ luminophores. For two series of [Ir(C^N)2(N^N)]+ luminophores, the computed DFT quantities remain in nice agreement with those available from the emission band-shape analyses.![]()
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Affiliation(s)
- Andrzej Kapturkiewicz
- Institute of Chemical Sciences, Siedlce University of Natural Sciences and Humanities, 3 Maja 54, 08-110 Siedlce, Poland
| | - Anna Kamecka
- Institute of Chemical Sciences, Siedlce University of Natural Sciences and Humanities, 3 Maja 54, 08-110 Siedlce, Poland
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139
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Hessels J, Masferrer‐Rius E, Yu F, Detz RJ, Klein Gebbink RJM, Reek JNH. Nickel is a Different Pickle: Trends in Water Oxidation Catalysis for Molecular Nickel Complexes. CHEMSUSCHEM 2020; 13:6629-6634. [PMID: 33090703 PMCID: PMC7756549 DOI: 10.1002/cssc.202002164] [Citation(s) in RCA: 4] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 09/11/2020] [Indexed: 06/11/2023]
Abstract
The development of novel water oxidation catalysts is important in the context of renewable fuels production. Ligand design is one of the key tools to improve the activity and stability of molecular catalysts. The establishment of ligand design rules can facilitate the development of improved molecular catalysts. In this paper it is shown that chemical oxidants can be used to probe oxygen evolution activity for nickel-based systems, and trends are reported that can improve future ligand design. Interestingly, different ligand effects were observed in comparison to other first-row transition metal complexes. For example, nickel complexes with secondary amine donors were more active than with tertiary amine donors, which is the opposite for iron complexes. The incorporation of imine donor groups in a cyclam ligand resulted in the fastest and most durable nickel catalyst of our series, achieving oxygen evolution turnover numbers up to 380 and turnover frequencies up to 68 min-1 in a pH 5.0 acetate buffer using Oxone as oxidant. Initial kinetic experiments with this catalyst revealed a first order in chemical oxidant and a half order in catalyst. This implies a rate-determining oxidation step from a dimeric species that needs to break up to generate the active catalyst. These findings lay the foundation for the rational design of molecular nickel catalysts for water oxidation and highlight that catalyst design rules are not generally applicable for different metals.
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Affiliation(s)
- Joeri Hessels
- Homogeneous, Supramolecular and Bio-Inspired Catalysis, Van ‘t Hoff Institute for Molecular SciencesUniversity of AmsterdamScience Park 9041098 XHAmsterdamThe Netherlands
| | - Eduard Masferrer‐Rius
- Organic Chemistry & Catalysis, Debye Institute for Nanomaterials ScienceUtrecht UniversityUniversiteitsweg 993584 CGUtrechtThe Netherlands
| | - Fengshou Yu
- Homogeneous, Supramolecular and Bio-Inspired Catalysis, Van ‘t Hoff Institute for Molecular SciencesUniversity of AmsterdamScience Park 9041098 XHAmsterdamThe Netherlands
| | - Remko J. Detz
- Current address: TNO Energy Transition, Energy Transition StudiesRadarweg 601043 NTAmsterdamThe Netherlands
| | - Robertus J. M. Klein Gebbink
- Organic Chemistry & Catalysis, Debye Institute for Nanomaterials ScienceUtrecht UniversityUniversiteitsweg 993584 CGUtrechtThe Netherlands
| | - Joost N. H. Reek
- Homogeneous, Supramolecular and Bio-Inspired Catalysis, Van ‘t Hoff Institute for Molecular SciencesUniversity of AmsterdamScience Park 9041098 XHAmsterdamThe Netherlands
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140
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Meng Z, Luo J, Li W, Mirica KA. Hierarchical Tuning of the Performance of Electrochemical Carbon Dioxide Reduction Using Conductive Two-Dimensional Metallophthalocyanine Based Metal–Organic Frameworks. J Am Chem Soc 2020; 142:21656-21669. [DOI: 10.1021/jacs.0c07041] [Citation(s) in RCA: 66] [Impact Index Per Article: 16.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/04/2023]
Affiliation(s)
- Zheng Meng
- Department of Chemistry, Dartmouth College, Hanover, New Hampshire 03755, United States
| | - Jianmin Luo
- Thayer School of Engineering, Dartmouth College, Hanover, New Hampshire 03755, United States
| | - Weiyang Li
- Thayer School of Engineering, Dartmouth College, Hanover, New Hampshire 03755, United States
| | - Katherine A. Mirica
- Department of Chemistry, Dartmouth College, Hanover, New Hampshire 03755, United States
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141
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Grammatico D, Tran HN, Li Y, Pugliese S, Billon L, Su BL, Fontecave M. Immobilization of a Molecular Re Complex on MOF-derived Hierarchical Porous Carbon for CO 2 Electroreduction in Water/Ionic Liquid Electrolyte. CHEMSUSCHEM 2020; 13:6418-6425. [PMID: 32975035 DOI: 10.1002/cssc.202002014] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 08/24/2020] [Revised: 09/20/2020] [Indexed: 05/06/2023]
Abstract
The development of molecular catalysts for CO2 electroreduction within electrolyzers requests their immobilization on the electrodes. While a variety of methods have been explored for the heterogenization of homogeneous complexes, a novel approach using a hierarchical porous carbon material, derived from a metal-organic framework, is reported as a support for the well-known molecular catalyst [Re(bpy)(CO)3 Cl] (bpy=2,2'-bipyridine). This cathodic hybrid material, named Re@HPC (HPC=hierarchical porous carbon), has been tested for CO2 electroreduction using a mixture of an ionic liquid (1-ethyl-3-methylimidazolium tetrafluoroborate, EMIM) and water as the electrolyte. Interestingly, it catalyzes the conversion of CO2 into a mixture of carbon monoxide and formic acid, with a selectivity that depends on the applied potential. The present study thus reveals that Re@HPC is a remarkable catalyst, enjoying excellent activity (turnover numbers for CO2 reduction of 7835 after 2 h at -1.95 V vs. Fc/Fc+ with a current density of 6 mA cm-2 ) and good stability. These results emphasize the advantages of integrating molecular catalysts onto such porous carbon materials for developing novel, stable and efficient, catalysts for CO2 reduction.
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Affiliation(s)
- Domenico Grammatico
- Laboratory of Inorganic Materials Chemistry (CMI), University of Namur, 61 rue de Bruxelles, 5000, Namur, Belgium
- Bio-inspired Materials Group: Functionality & Self-assembly, Université de Pau et des Pays de l'Adour, E2S UPPA, CNRS, IPREM UMR 5254, 64000, PAU, France
| | - Huan Ngoc Tran
- Laboratoire de Chimie des Processus Biologiques, UMR CNRS 8229, Collège de France-CNRS-Sorbonne Université, PSL Research University, 11 Place Marcelin Berthelot, 75005, Paris, France
| | - Yun Li
- Laboratoire de Chimie des Processus Biologiques, UMR CNRS 8229, Collège de France-CNRS-Sorbonne Université, PSL Research University, 11 Place Marcelin Berthelot, 75005, Paris, France
| | - Silvia Pugliese
- Laboratory of Inorganic Materials Chemistry (CMI), University of Namur, 61 rue de Bruxelles, 5000, Namur, Belgium
- Laboratoire de Chimie des Processus Biologiques, UMR CNRS 8229, Collège de France-CNRS-Sorbonne Université, PSL Research University, 11 Place Marcelin Berthelot, 75005, Paris, France
| | - Laurent Billon
- Bio-inspired Materials Group: Functionality & Self-assembly, Université de Pau et des Pays de l'Adour, E2S UPPA, CNRS, IPREM UMR 5254, 64000, PAU, France
| | - Bao-Lian Su
- Laboratory of Inorganic Materials Chemistry (CMI), University of Namur, 61 rue de Bruxelles, 5000, Namur, Belgium
| | - Marc Fontecave
- Laboratoire de Chimie des Processus Biologiques, UMR CNRS 8229, Collège de France-CNRS-Sorbonne Université, PSL Research University, 11 Place Marcelin Berthelot, 75005, Paris, France
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142
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Zhang L, Li S, Liu H, Cheng YS, Wei XW, Chai X, Yuan G. Highly Efficient and Selective Visible-Light Driven CO 2 Reduction by Two Co-Based Catalysts in Aqueous Solution. Inorg Chem 2020; 59:17464-17472. [PMID: 33161705 DOI: 10.1021/acs.inorgchem.0c02733] [Citation(s) in RCA: 12] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/28/2022]
Abstract
Photocatalytic CO2 reduction has been considered as a promising approach to solve energy and environmental problems. Nevertheless, developing inexpensive photocatalysts with high efficiency and selectivity remains a big challenge. In this study, two Co-based complexes [Co2(L1)Cl2] (1-Co) and [Co(L2)Cl] (2-Co) were synthesized by treating two DPA-based (DPA: dipicolylamine) ligands with Co2+, respectively. Under visible-light irradiation, the performance of 1-Co as a homogeneous photocatalyst for CO2 reduction in aqueous media has been explored by using [Ru(phen)3]2+ as a photosensitizer, and triethylolamine (TEOA) as a sacrificial reductant. 1-Co shows high photocatalytic activity for CO2-to-CO conversion, corresponding to the high TONCO of 2600 and TOFCO of 260 h-1 (TONCO = turnover number for CO; TOFCO = turnover frequency for CO). High selectivity of 97% for CO formation is also achieved. The control experiments catalyzed by 2-Co demonstrated that two Co(II) centers in 1-Co may operate independently and activate one CO2 molecule each. Furthermore, the proposed mechanism of 1-Co for photocatalytic CO2 reduction has been investigated via electrochemical analysis, a series of quenching experiments, and density functional theory calculations.
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Affiliation(s)
- Liyan Zhang
- School of Chemistry and Chemical Engineering, Institute of Materials Science and Engineering, Anhui University of Technology, Maanshan, 243032, People's Republic China
| | - Shiwei Li
- School of Chemistry and Chemical Engineering, Institute of Materials Science and Engineering, Anhui University of Technology, Maanshan, 243032, People's Republic China
| | - Huiping Liu
- School of Chemistry and Chemical Engineering, Institute of Materials Science and Engineering, Anhui University of Technology, Maanshan, 243032, People's Republic China
| | - Yuan-Sheng Cheng
- School of Chemistry and Chemical Engineering, Institute of Materials Science and Engineering, Anhui University of Technology, Maanshan, 243032, People's Republic China
| | - Xian-Wen Wei
- School of Chemistry and Chemical Engineering, Institute of Materials Science and Engineering, Anhui University of Technology, Maanshan, 243032, People's Republic China
| | - Xiaomin Chai
- School of Chemistry and Chemical Engineering, Institute of Materials Science and Engineering, Anhui University of Technology, Maanshan, 243032, People's Republic China
| | - Guozan Yuan
- School of Chemistry and Chemical Engineering, Institute of Materials Science and Engineering, Anhui University of Technology, Maanshan, 243032, People's Republic China
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143
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Pan H, Heagy MD. Photons to Formate-A Review on Photocatalytic Reduction of CO 2 to Formic Acid. NANOMATERIALS (BASEL, SWITZERLAND) 2020; 10:E2422. [PMID: 33291520 PMCID: PMC7761832 DOI: 10.3390/nano10122422] [Citation(s) in RCA: 23] [Impact Index Per Article: 5.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 09/26/2020] [Revised: 11/24/2020] [Accepted: 11/26/2020] [Indexed: 01/20/2023]
Abstract
Rising levels of atmospheric carbon dioxide due to the burning and depletion of fossil fuels is continuously raising environmental concerns about global warming and the future of our energy supply. Renewable energy, especially better utilization of solar energy, is a promising method for CO2 conversion and chemical storage. Research in the solar fuels area is focused on designing novel catalysts and developing new conversion pathways. In this review, we focus on the photocatalytic reduction of CO2 primarily in its neutral pH species of carbonate to formate. The first two-electron photoproduct of carbon dioxide, a case for formate (or formic acid) is made in this review based on its value as; an important chemical feedstock, a hydrogen storage material, an intermediate to methanol, a high-octane fuel and broad application in fuel cells. This review focuses specifically on the following photocatalysts: semiconductors, phthalocyanines as photosensitizers and membrane devices and metal-organic frameworks.
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144
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Prasad D, Patil KN, Chaudhari NK, Kim H, Nagaraja BM, Jadhav AH. Paving way for sustainable earth-abundant metal based catalysts for chemical fixation of CO2 into epoxides for cyclic carbonate formation. CATALYSIS REVIEWS-SCIENCE AND ENGINEERING 2020. [DOI: 10.1080/01614940.2020.1812212] [Citation(s) in RCA: 8] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 12/30/2022]
Affiliation(s)
- Divya Prasad
- Centre for Nano and Material Science (CNMS), Jain University, Jain Global Campus, 562112, Bangalore, Karnataka, India
| | - Komal N. Patil
- Centre for Nano and Material Science (CNMS), Jain University, Jain Global Campus, 562112, Bangalore, Karnataka, India
| | - Nitin K. Chaudhari
- Department of Chemistry, School of Technology, Pandit Deendayal Petroleum University, Gandhinagar, Gujarat, 382007, India
| | - Hern Kim
- Department of Energy Science and Technology, Smart Living Innovation Technology Center, Myongji University, 17058, Yongin, Gyeonggi-do, South Korea
| | - Bhari Mallanna Nagaraja
- Centre for Nano and Material Science (CNMS), Jain University, Jain Global Campus, 562112, Bangalore, Karnataka, India
| | - Arvind H. Jadhav
- Centre for Nano and Material Science (CNMS), Jain University, Jain Global Campus, 562112, Bangalore, Karnataka, India
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145
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Tian J, Zhang Y, Du L, He Y, Jin XH, Pearce S, Eloi JC, Harniman RL, Alibhai D, Ye R, Phillips DL, Manners I. Tailored self-assembled photocatalytic nanofibres for visible-light-driven hydrogen production. Nat Chem 2020; 12:1150-1156. [PMID: 33219362 DOI: 10.1038/s41557-020-00580-3] [Citation(s) in RCA: 55] [Impact Index Per Article: 13.8] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/27/2020] [Accepted: 10/14/2020] [Indexed: 12/12/2022]
Abstract
The creation of efficient artificial systems that mimic natural photosynthesis represents a key current challenge. Here, we describe a high-performance recyclable photocatalytic core-shell nanofibre system that integrates a cobalt catalyst and a photosensitizer in close proximity for hydrogen production from water using visible light. The composition, microstructure and dimensions-and thereby the catalytic activity-of the nanofibres were controlled through living crystallization-driven self-assembly. In this seeded growth strategy, block copolymers with crystallizable core-forming blocks and functional coronal segments were coassembled into low-dispersity, one-dimensional architectures. Under optimized conditions, the nanofibres promote the photocatalytic production of hydrogen from water with an overall quantum yield for solar energy conversion to hydrogen gas of ~4.0% (with a turnover number of >7,000 over 5 h, a frequency of >1,400 h-1 and a H2 production rate of >0.327 μmol h-1 with 1.34 μg of catalytic polymer (that is, >244,300 μmol h-1 g-1 of catalytic polymer)).
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Affiliation(s)
- Jia Tian
- School of Chemistry, University of Bristol, Bristol, UK.,Department of Chemistry, University of Victoria, Victoria, British Columbia, Canada
| | - Yifan Zhang
- School of Chemistry, University of Bristol, Bristol, UK.,Department of Chemistry, University of Victoria, Victoria, British Columbia, Canada
| | - Lili Du
- Department of Chemistry, The University of Hong Kong, Hong Kong, China
| | - Yunxiang He
- School of Chemistry, University of Bristol, Bristol, UK
| | - Xu-Hui Jin
- School of Chemistry, University of Bristol, Bristol, UK
| | - Samuel Pearce
- School of Chemistry, University of Bristol, Bristol, UK
| | | | | | - Dominic Alibhai
- Wolfson Bioimaging Facility, University of Bristol, Bristol, UK
| | - Ruquan Ye
- Department of Chemistry, State Key Laboratory of Marine Pollution, City University of Hong Kong, Hong Kong, China
| | | | - Ian Manners
- School of Chemistry, University of Bristol, Bristol, UK. .,Department of Chemistry, University of Victoria, Victoria, British Columbia, Canada.
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146
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DFNS/α-CD/Au as a Nanocatalyst for Interpolation of CO2 into Aryl Alkynes Followed by SN2 Coupling with Allylic Chlorides. Catal Letters 2020. [DOI: 10.1007/s10562-020-03451-1] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/23/2022]
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147
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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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148
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Mukherjee J, Siewert I. Manganese and Rhenium Tricarbonyl Complexes Equipped with Proton Relays in the Electrochemical CO
2
Reduction Reaction. Eur J Inorg Chem 2020. [DOI: 10.1002/ejic.202000738] [Citation(s) in RCA: 23] [Impact Index Per Article: 5.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/06/2022]
Affiliation(s)
- Jyotima Mukherjee
- Institut für Anorganische Chemie Universität Göttingen Tammannstr. 4 37077 Göttingen Germany
| | - Inke Siewert
- Institut für Anorganische Chemie Universität Göttingen Tammannstr. 4 37077 Göttingen Germany
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149
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Krisna Das P, Arunachalam M, Subhash KR, Seo YJ, Ahn KS, Ha JS, Kang SH. Nanoporous Ta 3N 5via electrochemical anodization followed by nitridation for solar water oxidation. Dalton Trans 2020; 49:15023-15033. [PMID: 33095219 DOI: 10.1039/d0dt03056b] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
Abstract
Nanoporous tantalum nitride (Ta3N5) is a promising visible-light-driven photoanode for photoelectrochemical (PEC) water splitting with a narrow band gap of approximately 2.0 eV. It can utilize a large portion of the solar spectrum up to 600 nm to improve the activity of photooxidation reactions because of enhanced light scattering and an overall increase of the surface area with high light absorption and carrier collection. Herein, we synthesized a new n-type nanoporous tantalum nitride film on Ta foil by electrochemical anodization with a fluorinated electrolyte. Post-annealing in a nitrogen/ammonia mixture gas environment then transformed amorphous TaOx to crystalline Ta3N5. Effects of annealing temperature on the microstructure, optical properties, and PEC properties of samples were then investigated under changeable stoichiometry of Ta and N elements in the Ta-based nitride film. Results showed that the film annealed at 1000 °C showed high crystallinity, high visible light absorption, and a highly conductive interlayer between the substrates, resulting in the highest photocurrent density (JSC) of ∼0.25 mA cm-2 at 1.23 VRHE in PEC water splitting. In addition, depending on the annealing temperature, it is possible to engineer band alignment in the nanoporous Ta3N5 layer, allowing a beneficial charge transfer process.
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Affiliation(s)
- Pran Krisna Das
- Department of Advanced Chemicals and Engineering, Chonnam National University, Yongbong-ro 77, Yongbong-dong, Gwangju 500-757, Republic of Korea
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150
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CO2 and H2O Coadsorption and Reaction on the Low-Index Surfaces of Tantalum Nitride: A First-Principles DFT-D3 Investigation. Catalysts 2020. [DOI: 10.3390/catal10101217] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/17/2022] Open
Abstract
A comprehensive mechanistic insight into the photocatalytic reduction of CO2 by H2O is indispensable for the development of highly efficient and robust photocatalysts for artificial photosynthesis. This work presents first-principles mechanistic insights into the adsorption and activation of CO2 in the absence and presence of H2O on the (001), (010), and (110) surfaces of tantalum nitride (Ta3N5), a photocatalysts of significant technological interest. The stability of the different Ta3N surfaces is shown to dictate the strength of adsorption and the extent of activation of CO2 and H2O species, which bind strongest to the least stable Ta3N5(001) surface and weakest to the most stable Ta3N5(110) surface. The adsorption of the CO2 on the Ta3N5(001), (010), and (110) surfaces is demonstrated to be characterized by charge transfer from surface species to the CO2 molecule, resulting in its activation (i.e., forming negatively charged bent CO2−δ species, with elongated C–O bonds confirmed via vibrational frequency analyses). Compared to direct CO2 dissociation, H2O dissociates spontaneously on the Ta3N5 surfaces, providing the necessary hydrogen source for CO2 reduction reactions. The coadsorption reactions of CO2 and H2O are demonstrated to exhibit the strongest attractive interactions on the (010) surface, giving rise to proton transfer to the CO2 molecule, which causes its spontaneous dissociation to form CO and 2OH− species. These results demonstrate that Ta3N5, a narrow bandgap photocatalyst able to absorb visible light, can efficiently activate the CO2 molecule and photocatalytically reduce it with water to produce value-added fuels.
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