1
|
Yong WW, Zhang HT, Guo YH, Xie F, Zhang MT. Redox-Active Ligand Assisted Multielectron Catalysis: A Case of Electrocatalyzed CO 2-to-CO Conversion. ACS ORGANIC & INORGANIC AU 2023; 3:384-392. [PMID: 38075450 PMCID: PMC10704577 DOI: 10.1021/acsorginorgau.3c00027] [Citation(s) in RCA: 1] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 06/25/2023] [Revised: 07/31/2023] [Accepted: 08/10/2023] [Indexed: 03/16/2024]
Abstract
The selective reduction of carbon dioxide remains a significant challenge due to the complex multielectron/proton transfer process, which results in a high kinetic barrier and the production of diverse products. Inspired by the electrostatic and H-bonding interactions observed in the second sphere of the [NiFe]-CODH enzyme, researchers have extensively explored these interactions to regulate proton transfer, stabilize intermediates, and ultimately improve the performance of catalytic CO2 reduction. In this work, a series of cobalt(II) tetraphenylporphyrins with varying numbers of redox-active nitro groups were synthesized and evaluated as CO2 reduction electrocatalysts. Analyses of the redox properties of these complexes revealed a consistent relationship between the number of nitro groups and the corresponding accepted electron number of the ligand at -1.59 V vs. Fc+/0. Among the catalysts tested, TNPPCo with four nitro groups exhibited the most efficient catalytic activity with a turnover frequency of 4.9 × 104 s-1 and a catalytic onset potential 820 mV more positive than that of the parent TPPCo. Furthermore, the turnover frequencies of the catalysts increased with a higher number of nitro groups. These results demonstrate the promising design strategy of incorporating multielectron redox-active ligands into CO2 reduction catalysts to enhance catalytic performance.
Collapse
Affiliation(s)
- Wen-Wen Yong
- Center
of Basic Molecular Science (CBMS), Department of Chemistry, Tsinghua University, Beijing 100084, China
- Institute
of Materials, China Academy of Engineering Physics (CAEP), Jiangyou 621908, China
| | - Hong-Tao Zhang
- Center
of Basic Molecular Science (CBMS), Department of Chemistry, Tsinghua University, Beijing 100084, China
| | - Yu-Hua Guo
- Center
of Basic Molecular Science (CBMS), Department of Chemistry, Tsinghua University, Beijing 100084, China
| | - Fei Xie
- Center
of Basic Molecular Science (CBMS), Department of Chemistry, Tsinghua University, Beijing 100084, China
| | - Ming-Tian Zhang
- Center
of Basic Molecular Science (CBMS), Department of Chemistry, Tsinghua University, Beijing 100084, China
| |
Collapse
|
2
|
Guo H, Liang Z, Guo K, Lei H, Wang Y, Zhang W, Cao R. Iron porphyrin with appended guanidyl group for significantly improved electrocatalytic carbon dioxide reduction activity and selectivity in aqueous solutions. CHINESE JOURNAL OF CATALYSIS 2022. [DOI: 10.1016/s1872-2067(21)63957-8] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 11/10/2022]
|
3
|
Narouz MR, De La Torre P, An L, Chang CJ. Multifunctional Charge and Hydrogen-Bond Effects of Second-Sphere Imidazolium Pendants Promote Capture and Electrochemical Reduction of CO 2 in Water Catalyzed by Iron Porphyrins. Angew Chem Int Ed Engl 2022; 61:e202207666. [PMID: 35878059 PMCID: PMC9452489 DOI: 10.1002/anie.202207666] [Citation(s) in RCA: 13] [Impact Index Per Article: 6.5] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/25/2022] [Indexed: 08/26/2023]
Abstract
Microenvironments tailored by multifunctional secondary coordination sphere groups can enhance catalytic performance at primary metal active sites in natural systems. Here, we capture this biological concept in synthetic systems by developing a family of iron porphyrins decorated with imidazolium (im) pendants for the electrochemical CO2 reduction reaction (CO2 RR), which promotes multiple synergistic effects to enhance CO2 RR and enables the disentangling of second-sphere contributions that stem from each type of interaction. Fe-ortho-im(H), which poises imidazolium units featuring both positive charge and hydrogen-bond capabilities proximal to the active iron center, increases CO2 binding affinity by 25-fold and CO2 RR activity by 2000-fold relative to the parent Fe tetraphenylporphyrin (Fe-TPP). Comparison with monofunctional analogs reveals that through-space charge effects have a greater impact on catalytic CO2 RR performance compared to hydrogen bonding in this context.
Collapse
Affiliation(s)
- Mina R Narouz
- Department of Chemistry, University of California, Berkeley, Berkeley, CA 94720-1460, USA
- Chemical Sciences Division, Lawrence Berkeley National Laboratory, Berkeley, CA, 94720-1460, USA
| | - Patricia De La Torre
- Department of Chemistry, University of California, Berkeley, Berkeley, CA 94720-1460, USA
- Chemical Sciences Division, Lawrence Berkeley National Laboratory, Berkeley, CA, 94720-1460, USA
| | - Lun An
- Department of Chemistry, University of California, Berkeley, Berkeley, CA 94720-1460, USA
- Chemical Sciences Division, Lawrence Berkeley National Laboratory, Berkeley, CA, 94720-1460, USA
| | - Christopher J Chang
- Department of Chemistry, University of California, Berkeley, Berkeley, CA 94720-1460, USA
- Chemical Sciences Division, Lawrence Berkeley National Laboratory, Berkeley, CA, 94720-1460, USA
- Department of Molecular and Cell Biology, University of California, Berkeley, Berkeley, CA 94720-1460, USA
| |
Collapse
|
4
|
Narouz MR, De La Torre P, An L, Chang CJ. Multifunctional Charge and Hydrogen‐Bond Effects of Second‐Sphere Imidazolium Pendants Promote Capture and Electrochemical Reduction of CO2 in Water Catalyzed by Iron Porphyrins. Angew Chem Int Ed Engl 2022. [DOI: 10.1002/ange.202207666] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/11/2022]
Affiliation(s)
- Mina R. Narouz
- UC Berkeley: University of California Berkeley Chemistry UNITED STATES
| | | | - Lun An
- UC Berkeley: University of California Berkeley Chemistry UNITED STATES
| | - Christopher J. Chang
- University of California Department of Chemistry 532A Latimer Hall 94720-1460 Berkeley UNITED STATES
| |
Collapse
|
5
|
Amanullah S, Saha P, Dey A. Recent developments in the synthesis of bio-inspired iron porphyrins for small molecule activation. Chem Commun (Camb) 2022; 58:5808-5828. [PMID: 35474535 DOI: 10.1039/d2cc00430e] [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
Nature utilizes a diverse set of tetrapyrrole-based macrocycles (referred to as porphyrinoids) for catalyzing various biological processes. Investigation of the differences in electronic structure and reactivity in these reactions have revealed striking differences that lead to diverse reactivity from, apparently, similar looking active sites. Therefore, the role of the different heme cofactors as well as the distal superstructure in the proteins is important to understand. This article summarizes the role of a few synthetic metallo-porphyrinoids towards catalyzing several small molecule activation reactions, such as the ORR, NiRR, CO2RR, etc. The major focus of the article is to enlighten the synthetic routes to the well-decorated active-site mimic in a tailor-made fashion pursuing a retrosynthetic approach, learning from the biosynthesis of the cofactors. Techniques and the role of the second-sphere residues on the reaction rate, selectivity, etc. are incorporated emulating the basic amino acid residues fencing the active sites. These bioinspired mimics play an important role towards understanding the role of the prosthetic groups as well as the basic residues towards any reaction occurring in Nature.
Collapse
Affiliation(s)
- Sk Amanullah
- School of Chemical Sciences, Indian Association for the Cultivation of Science, 2A Raja SC Mullick Road, Kolkata, WB 700032, India.
| | - Paramita Saha
- School of Chemical Sciences, Indian Association for the Cultivation of Science, 2A Raja SC Mullick Road, Kolkata, WB 700032, India.
| | - Abhishek Dey
- School of Chemical Sciences, Indian Association for the Cultivation of Science, 2A Raja SC Mullick Road, Kolkata, WB 700032, India.
| |
Collapse
|
6
|
Guo K, Lei H, Li X, Zhang Z, Wang Y, Guo H, Zhang W, Cao R. Alkali metal cation effects on electrocatalytic CO2 reduction with iron porphyrins. CHINESE JOURNAL OF CATALYSIS 2021. [DOI: 10.1016/s1872-2067(20)63762-7] [Citation(s) in RCA: 14] [Impact Index Per Article: 4.7] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 11/29/2022]
|
7
|
Li Y, Wang N, Lei H, Li X, Zheng H, Wang H, Zhang W, Cao R. Bioinspired N4-metallomacrocycles for electrocatalytic oxygen reduction reaction. Coord Chem Rev 2021. [DOI: 10.1016/j.ccr.2021.213996] [Citation(s) in RCA: 14] [Impact Index Per Article: 4.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/21/2022]
|
8
|
Tetzlaff D, Pellumbi K, Puring KJ, Siegmund D, Polet WSK, Checinski MP, Apfel U. Influence of the Fe : Ni Ratio in Fe
x
Ni
9‐x
S
8
(x=3–6) on the CO
2
Electroreduction. ChemElectroChem 2021. [DOI: 10.1002/celc.202100930] [Citation(s) in RCA: 4] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/23/2022]
Affiliation(s)
- David Tetzlaff
- Inorganic Chemistry I – Bioinorganic Chemistry Ruhr University Bochum Universitätsstrasse 150 44801 Bochum Germany
- Department of Electrosynthesis Fraunhofer Institute for Environmental, Energy and Safety Technology UMSICHT Osterfelder Str. 3 46047 Oberhausen Germany
| | - Kevinjeorjios Pellumbi
- Inorganic Chemistry I – Bioinorganic Chemistry Ruhr University Bochum Universitätsstrasse 150 44801 Bochum Germany
- Department of Electrosynthesis Fraunhofer Institute for Environmental, Energy and Safety Technology UMSICHT Osterfelder Str. 3 46047 Oberhausen Germany
| | - Kai junge Puring
- Department of Electrosynthesis Fraunhofer Institute for Environmental, Energy and Safety Technology UMSICHT Osterfelder Str. 3 46047 Oberhausen Germany
| | - Daniel Siegmund
- Department of Electrosynthesis Fraunhofer Institute for Environmental, Energy and Safety Technology UMSICHT Osterfelder Str. 3 46047 Oberhausen Germany
| | | | | | - Ulf‐Peter Apfel
- Inorganic Chemistry I – Bioinorganic Chemistry Ruhr University Bochum Universitätsstrasse 150 44801 Bochum Germany
- Department of Electrosynthesis Fraunhofer Institute for Environmental, Energy and Safety Technology UMSICHT Osterfelder Str. 3 46047 Oberhausen Germany
| |
Collapse
|
9
|
Han Y, Zhu S, Xu S, Niu X, Xu Z, Zhao R, Wang Q. Understanding Structure‐activity Relationship on Metal‐Organic‐Framework‐Derived Catalyst for CO
2
Electroreduction to C
2
Products. ChemElectroChem 2021. [DOI: 10.1002/celc.202100942] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/05/2022]
Affiliation(s)
- Yunxi Han
- Key Laboratory for Green Chemical Technology of the Ministry of Education School of Chemical Engineering and Technology Tianjin University Tianjin 300072 China
| | - Shuaikang Zhu
- Key Laboratory for Green Chemical Technology of the Ministry of Education School of Chemical Engineering and Technology Tianjin University Tianjin 300072 China
| | - Shuang Xu
- Key Laboratory for Green Chemical Technology of the Ministry of Education School of Chemical Engineering and Technology Tianjin University Tianjin 300072 China
| | - Xiaopo Niu
- Key Laboratory for Green Chemical Technology of the Ministry of Education School of Chemical Engineering and Technology Tianjin University Tianjin 300072 China
| | - Zhihong Xu
- Key Laboratory for Green Chemical Technology of the Ministry of Education School of Chemical Engineering and Technology Tianjin University Tianjin 300072 China
| | - Rong Zhao
- Key Laboratory for Green Chemical Technology of the Ministry of Education School of Chemical Engineering and Technology Tianjin University Tianjin 300072 China
| | - Qingfa Wang
- Key Laboratory for Green Chemical Technology of the Ministry of Education School of Chemical Engineering and Technology Tianjin University Tianjin 300072 China
- Collaborative Innovation Center of Chemical Science and Engineering (Tianjin) School of Chemical Engineering and Technology Tianjin University Tianjin 300072 China
| |
Collapse
|
10
|
Zhang X, Yamauchi K, Sakai K. Earth-Abundant Photocatalytic CO2 Reduction by Multielectron Chargeable Cobalt Porphyrin Catalysts: High CO/H2 Selectivity in Water Based on Phase Mismatch in Frontier MO Association. ACS Catal 2021. [DOI: 10.1021/acscatal.1c02475] [Citation(s) in RCA: 16] [Impact Index Per Article: 5.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/29/2022]
Affiliation(s)
- Xian Zhang
- Department of Chemistry, Faculty of Science, Kyushu University, Motooka 744, Nishi-ku, Fukuoka 819-0395, Japan
| | - 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
| |
Collapse
|
11
|
Zhang Z, Koide T, Zhou Z, Shimakoshi H, Hisaeda Y. Redox behavior of iridium octaethylporphycene and electrocatalytic hydrogen evolution. J PORPHYR PHTHALOCYA 2021. [DOI: 10.1142/s108842462150053x] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/18/2022]
Abstract
The electrochemical properties of [Formula: see text]-octaethylporphycene iridium complex (Ir-OEPo) were determined. Based on the electro-spectro measurement results, the reduction of Ir-OEPo did not occur at the central metal but at the ligand, while the reduction of [Formula: see text]-octaethylporphyrin iridium complex (Ir-OEPor) occurred at the central iridium. A catalytic current was observed during the cyclic voltammetry (CV) measurements with trifluoroacetic acid (TFA) under a reductive condition, indicating the catalytic reactivity of Ir-OEPo for the hydrogen evolution reaction (HER). By constant potential electrolysis, hydrogen gas was detected by gas chromatography (GC) and the catalytic reactivity of Ir-OEPo was confirmed. The HER mechanism via ligand reduction of macrocyclic aromatic complexes could be one of the concepts for the development of new catalysts.
Collapse
Affiliation(s)
- Zhi Zhang
- Department of Chemistry and Biochemistry, Graduate School of Engineering, Kyushu University, Moto-oka 744, Nishi-ku, Fukuoka 819-0395, Japan
| | - Taro Koide
- Department of Chemistry and Biochemistry, Graduate School of Engineering, Kyushu University, Moto-oka 744, Nishi-ku, Fukuoka 819-0395, Japan
| | - Zihan Zhou
- Department of Chemistry and Biochemistry, Graduate School of Engineering, Kyushu University, Moto-oka 744, Nishi-ku, Fukuoka 819-0395, Japan
| | - Hisashi Shimakoshi
- Department of Chemistry and Biochemistry, Graduate School of Engineering, Kyushu University, Moto-oka 744, Nishi-ku, Fukuoka 819-0395, Japan
| | - Yoshio Hisaeda
- Department of Chemistry and Biochemistry, Graduate School of Engineering, Kyushu University, Moto-oka 744, Nishi-ku, Fukuoka 819-0395, Japan
- Center for Molecular Systems (CMS), Kyushu University, Moto-oka 744, Nishi-ku, Fukuoka 819-0395, Japan
| |
Collapse
|
12
|
Liang Z, Wang HY, Zheng H, Zhang W, Cao R. Porphyrin-based frameworks for oxygen electrocatalysis and catalytic reduction of carbon dioxide. Chem Soc Rev 2021; 50:2540-2581. [DOI: 10.1039/d0cs01482f] [Citation(s) in RCA: 125] [Impact Index Per Article: 41.7] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/23/2022]
Abstract
The recent progress made on porphyrin-based frameworks and their applications in energy-related conversion technologies (e.g., ORR, OER and CO2RR) and storage technologies (e.g., Zn–air batteries).
Collapse
Affiliation(s)
- Zuozhong Liang
- Key Laboratory of Applied Surface and Colloid Chemistry
- Ministry of Education, School of Chemistry and Chemical Engineering
- Shaanxi Normal University
- Xi’an 710119
- China
| | - Hong-Yan Wang
- Key Laboratory of Applied Surface and Colloid Chemistry
- Ministry of Education, School of Chemistry and Chemical Engineering
- Shaanxi Normal University
- Xi’an 710119
- China
| | - Haoquan Zheng
- Key Laboratory of Applied Surface and Colloid Chemistry
- Ministry of Education, School of Chemistry and Chemical Engineering
- Shaanxi Normal University
- Xi’an 710119
- China
| | - Wei Zhang
- Key Laboratory of Applied Surface and Colloid Chemistry
- Ministry of Education, School of Chemistry and Chemical Engineering
- Shaanxi Normal University
- Xi’an 710119
- China
| | - Rui Cao
- Key Laboratory of Applied Surface and Colloid Chemistry
- Ministry of Education, School of Chemistry and Chemical Engineering
- Shaanxi Normal University
- Xi’an 710119
- China
| |
Collapse
|
13
|
Amanullah S, Saha P, Nayek A, Ahmed ME, Dey A. Biochemical and artificial pathways for the reduction of carbon dioxide, nitrite and the competing proton reduction: effect of 2nd sphere interactions in catalysis. Chem Soc Rev 2021; 50:3755-3823. [DOI: 10.1039/d0cs01405b] [Citation(s) in RCA: 40] [Impact Index Per Article: 13.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/08/2023]
Abstract
Reduction of oxides and oxoanions of carbon and nitrogen are of great contemporary importance as they are crucial for a sustainable environment.
Collapse
Affiliation(s)
- Sk Amanullah
- School of Chemical Sciences
- Indian Association for the Cultivation of Science
- Kolkata
- India
| | - Paramita Saha
- School of Chemical Sciences
- Indian Association for the Cultivation of Science
- Kolkata
- India
| | - Abhijit Nayek
- School of Chemical Sciences
- Indian Association for the Cultivation of Science
- Kolkata
- India
| | - Md Estak Ahmed
- School of Chemical Sciences
- Indian Association for the Cultivation of Science
- Kolkata
- India
| | - Abhishek Dey
- School of Chemical Sciences
- Indian Association for the Cultivation of Science
- Kolkata
- India
| |
Collapse
|
14
|
Lei H, Wang Y, Zhang Q, Cao R. First-row transition metal porphyrins for electrocatalytic hydrogen evolution — a SPP/JPP Young Investigator Award paper. J PORPHYR PHTHALOCYA 2020. [DOI: 10.1142/s1088424620500157] [Citation(s) in RCA: 18] [Impact Index Per Article: 4.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/18/2022]
Abstract
A series of first-row transition metal complexes of tetrakis(pentafluorophenyl)porphyrin (1), denoted as 1-M (M [Formula: see text] Mn, Fe, Co, Ni, Cu, and Zn), were synthesized and examined as electrocatalysts for the hydrogen evolution reaction (HER). All these transition metal porphyrins were shown to be active for HER in acetonitrile using trifluoroacetic acid (TFA) as the proton source. The molecular nature and the stability of these metal porphyrins when functioning as HER catalysts were confirmed, and all catalysts gave Faradaic efficiency of >97% for H2 generation during bulk electrolysis. Importantly, by using 1-Cu, a remarkably high turnover frequency (TOF) of 48500 s[Formula: see text] 1-Cu the most efficient among this series of metal porphyrin catalysts. This TOF value also represents one of the highest values reported in the literature. In addition, electrochemical analysis demonstrated that catalytic HER mechanisms with these 1-M complexes are different. These results show that with the same porphyrin ligand, the change of metal ions will have significant impact on both catalytic efficiency and mechanism. This work for the first time provides direct comparison of electrocatalytic HER features of transition metal complexes of tetrakis(pentafluorophenyl)porphyrin under identical conditions, and will be valuable for future design and development of more efficient HER electrocatalysts of this series.
Collapse
Affiliation(s)
- Haitao Lei
- Key Laboratory of Applied Surface and Colloid Chemistry, Ministry of Education, School of Chemistry and Chemical Engineering, Shaanxi Normal University, Xi’an 710119, China
| | - Yabo Wang
- Key Laboratory of Applied Surface and Colloid Chemistry, Ministry of Education, School of Chemistry and Chemical Engineering, Shaanxi Normal University, Xi’an 710119, China
| | - Qingxin Zhang
- Key Laboratory of Applied Surface and Colloid Chemistry, Ministry of Education, School of Chemistry and Chemical Engineering, Shaanxi Normal University, Xi’an 710119, China
| | - Rui Cao
- Key Laboratory of Applied Surface and Colloid Chemistry, Ministry of Education, School of Chemistry and Chemical Engineering, Shaanxi Normal University, Xi’an 710119, China
| |
Collapse
|
15
|
Williams CK, Lashgari A, Tomb JA, Chai J, Jiang JJ. Atropisomeric Effects of Second Coordination Spheres on Electrocatalytic CO
2
Reduction. ChemCatChem 2020. [DOI: 10.1002/cctc.202000909] [Citation(s) in RCA: 9] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/09/2022]
Affiliation(s)
- Caroline K. Williams
- Department of Chemistry University of Cincinnati P.O. Box 210172 Cincinnati, Ohio 45221-0172 USA
| | - Amir Lashgari
- Department of Chemistry University of Cincinnati P.O. Box 210172 Cincinnati, Ohio 45221-0172 USA
| | - Jenny A. Tomb
- Department of Chemistry University of Cincinnati P.O. Box 210172 Cincinnati, Ohio 45221-0172 USA
| | - Jingchao Chai
- Department of Chemistry University of Cincinnati P.O. Box 210172 Cincinnati, Ohio 45221-0172 USA
| | - Jianbing Jimmy Jiang
- Department of Chemistry University of Cincinnati P.O. Box 210172 Cincinnati, Ohio 45221-0172 USA
| |
Collapse
|
16
|
Williams CK, Lashgari A, Chai J, Jiang JJ. Enhanced Molecular CO 2 Electroreduction Enabled by a Flexible Hydrophilic Channel for Relay Proton Shuttling. CHEMSUSCHEM 2020; 13:3412-3417. [PMID: 32379922 DOI: 10.1002/cssc.202001037] [Citation(s) in RCA: 12] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 04/21/2020] [Indexed: 06/11/2023]
Abstract
The effects of primary and second coordination spheres on molecular electrocatalysis have been extensively studied, yet investigations of third functional spheres are rarely reported. Here, an electrocatalyst (ZnPEG8T) was developed with a hydrophilic channel as a third functional sphere that facilitates relay proton shuttling to the primary and second coordination spheres for enhanced catalytic CO2 reduction. Using foot-of-the-wave analysis, the ZnPEG8T catalyst displayed CO2 -to-CO activity (TOFmax ) thirty times greater than that of the benchmark catalyst without a third functional sphere. A kinetic isotopic effect (KIE) study, in conjunction with voltammetry and UV/Vis spectroscopy, uncovered that the rate-limiting step was not the protonation step of the metallocarboxylate intermediate, as observed in many other molecular CO2 reduction electrocatalysts, but rather the replenishment of protons in the proton-shuttling channel. Controlled-potential electrolysis using ZnPEG8T displayed a faradaic efficiency of 100 % for CO2 -to-CO conversion at -2.4 V vs. Fc/Fc+ . A Tafel plot was also generated for a comparison to other reported molecular catalysts. This report validates a strategy for incorporating higher functional spheres for enhanced catalytic efficiency in proton-coupled electron-transfer reactions.
Collapse
Affiliation(s)
- Caroline K Williams
- Department of Chemistry, University of Cincinnati, P.O. Box 210172, Cincinnati, Ohio, 45221, United States
| | - Amir Lashgari
- Department of Chemistry, University of Cincinnati, P.O. Box 210172, Cincinnati, Ohio, 45221, United States
| | - Jingchao Chai
- Department of Chemistry, University of Cincinnati, P.O. Box 210172, Cincinnati, Ohio, 45221, United States
| | - Jianbing Jimmy Jiang
- Department of Chemistry, University of Cincinnati, P.O. Box 210172, Cincinnati, Ohio, 45221, United States
| |
Collapse
|
17
|
Smith PT, Weng S, Chang CJ. An NADH-Inspired Redox Mediator Strategy to Promote Second-Sphere Electron and Proton Transfer for Cooperative Electrochemical CO2 Reduction Catalyzed by Iron Porphyrin. Inorg Chem 2020; 59:9270-9278. [DOI: 10.1021/acs.inorgchem.0c01162] [Citation(s) in RCA: 19] [Impact Index Per Article: 4.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/13/2022]
Affiliation(s)
- Peter T. Smith
- Chemical Sciences Division, Lawrence Berkeley National Laboratory, Berkeley, California 94720, United States
| | | | - Christopher J. Chang
- Chemical Sciences Division, Lawrence Berkeley National Laboratory, Berkeley, California 94720, United States
| |
Collapse
|
18
|
Watpathomsub S, Luangchaiyaporn J, Sariciftci NS, Thamyongkit P. Efficient heterogeneous catalysis by pendant metalloporphyrin-functionalized polythiophenes for the electrochemical reduction of carbon dioxide. NEW J CHEM 2020. [DOI: 10.1039/d0nj01381a] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/09/2023]
Abstract
Pendant metalloporphyrin-functionalized polythiophenes serve as efficient catalysts for the practical heterogeneous electrochemical reduction of carbon dioxide under ambient conditions in aqueous media.
Collapse
Affiliation(s)
- Supranee Watpathomsub
- Department of Chemistry
- Faculty of Science
- Chulalongkorn University
- Bangkok 10330
- Thailand
| | | | - Niyazi Serdar Sariciftci
- Linz Institute for Organic Solar Cells (LIOS)
- Institute of Physical Chemistry
- Johannes Kepler University
- Linz 4040
- Austria
| | | |
Collapse
|