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Guo C, Xu M, Tao Z, Liu J, Zhang S, He L, Du M, Zhang Z. Understanding electron structure of covalent triazine framework embraced with gold nanoparticles for nitrogen reduction to ammonia. J Colloid Interface Sci 2024; 675:369-378. [PMID: 38972124 DOI: 10.1016/j.jcis.2024.07.020] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/28/2024] [Revised: 07/02/2024] [Accepted: 07/03/2024] [Indexed: 07/09/2024]
Abstract
Regulating the electron structure and precise loading sites of metal-active sites within the highly conjugated and porous covalent-triazine frameworks (CTFs) is essential to promoting the nitrogen reduction reaction (NRR) performance for electrocatalytic ammonia (NH3) synthesis under ambient conditions. Herein, experimental method and density functional theory (DFT) calculations were conducted to deeply probe the effect on NRR of the modulation of modulating the electron structure and the loading site of gold nanoparticles (Au NPs) in a two-dimensional (2D) CTF. 2D CTF synthesized using melem and hexaketocyclohexane octahydrate as building blocks (denoted as M-HCO-CTF) served as a robust scaffold for loading Au NPs to form an M-HCO-CTF@AuNP hybrid. DFT results uncovered that well-defined Au sites with tunable local structure were the active site for driving the NRR, which can significantly suppress the conversion of H+ into *H adsorption and enhance the nitrogen (N2) adsorption/activation. The overlapped Au (3d) and *N2 (2p) orbitals lowered the free energy of the rate-determining step to form *NNH, thereby accelerating the NRR. The M-HCO-CTF@AuNPs electrocatalyst exhibited a large NH3 yield rate of 66.3 μg h-1 mg-1cat. and a high Faraday efficiency of 31.4 % at - 0.2 V versus reversible hydrogen electrode in 0.1 M HCl, superior to most reported CTF-based ones. This work can provide deep insights into the modulation of the electron structure of metal atoms within a porous organic framework for artificial NH3 synthesis through NRR.
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Affiliation(s)
- Chuanpan Guo
- College of Material and Chemical Engineering, Institute of New Energy Science and Technology, School of Future Hydrogen Energy Technology, Zhengzhou University of Light Industry, Zhengzhou 450001, PR China
| | - Mingyang Xu
- College of Material and Chemical Engineering, Institute of New Energy Science and Technology, School of Future Hydrogen Energy Technology, Zhengzhou University of Light Industry, Zhengzhou 450001, PR China
| | - Zheng Tao
- College of Material and Chemical Engineering, Institute of New Energy Science and Technology, School of Future Hydrogen Energy Technology, Zhengzhou University of Light Industry, Zhengzhou 450001, PR China
| | - Jiameng Liu
- College of Material and Chemical Engineering, Institute of New Energy Science and Technology, School of Future Hydrogen Energy Technology, Zhengzhou University of Light Industry, Zhengzhou 450001, PR China
| | - Shuai Zhang
- College of Material and Chemical Engineering, Institute of New Energy Science and Technology, School of Future Hydrogen Energy Technology, Zhengzhou University of Light Industry, Zhengzhou 450001, PR China
| | - Linghao He
- College of Material and Chemical Engineering, Institute of New Energy Science and Technology, School of Future Hydrogen Energy Technology, Zhengzhou University of Light Industry, Zhengzhou 450001, PR China
| | - Miao Du
- College of Material and Chemical Engineering, Institute of New Energy Science and Technology, School of Future Hydrogen Energy Technology, Zhengzhou University of Light Industry, Zhengzhou 450001, PR China.
| | - Zhihong Zhang
- College of Material and Chemical Engineering, Institute of New Energy Science and Technology, School of Future Hydrogen Energy Technology, Zhengzhou University of Light Industry, Zhengzhou 450001, PR China.
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Qiao R, Wang J, Hu H, Lu S. Covalent Organic Frameworks Based Electrocatalysts for Two-Electron Oxygen Reduction Reaction: Design Principles, Recent Advances, and Perspective. Molecules 2024; 29:2563. [PMID: 38893439 PMCID: PMC11173880 DOI: 10.3390/molecules29112563] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/09/2024] [Revised: 05/24/2024] [Accepted: 05/27/2024] [Indexed: 06/21/2024] Open
Abstract
Hydrogen peroxide (H2O2) is an environmentally friendly oxidant with a wide range of applications, and the two-electron pathway (2e-) of the oxygen reduction reaction (ORR) for H2O2 production has attracted much attention due to its eco-friendly nature and operational simplicity in contrast to the conventional anthraquinone process. The challenge is to design electrocatalysts with high activity and selectivity and to understand their structure-activity relationship and catalytic mechanism in the ORR process. Covalent organic frameworks (COFs) provide an efficient template for the construction of highly efficient electrocatalysts due to their designable structure, excellent stability, and controllable porosity. This review firstly outlines the design principles of COFs, including the selection of metallic and nonmetallic active sites, the modulation of the electronic structure of the active sites, and the dimensionality modulation of the COFs, to provide guidance for improving the production performance of H2O2. Subsequently, representative results are summarized in terms of both metallic and metal-free sites to follow the latest progress. Moreover, the challenges and perspectives of 2e- ORR electrocatalysts based on COFs are discussed.
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Affiliation(s)
| | | | | | - Shuanglong Lu
- Key Laboratory of Synthetic and Biological Colloids, Ministry of Education, School of Chemical and Material Engineering, Jiangnan University, Wuxi 214122, China
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Liu M, Cui CX, Yang S, Yang X, Li X, He J, Xu Q, Zeng G. Elaborate Modulating Binding Strength of Intermediates via Three-component Covalent Organic Frameworks for CO 2 Reduction Reaction. Angew Chem Int Ed Engl 2024; 63:e202401750. [PMID: 38407379 DOI: 10.1002/anie.202401750] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/24/2024] [Revised: 02/22/2024] [Accepted: 02/26/2024] [Indexed: 02/27/2024]
Abstract
The catalytic performance for electrocatalytic CO2 reduction reaction (CO2RR) depends on the binding strength of the reactants and intermediates. Covalent organic frameworks (COFs) have been adopted to catalyze CO2RR, and their binding abilities are tuned via constructing donor-acceptor (DA) systems. However, most DA COFs have single donor and acceptor units, which caused wide-range but lacking accuracy in modulating the binding strength of intermediates. More elaborate regulation of the interactions with intermediates are necessary and challenge to construct high-efficiency catalysts. Herein, the three-component COF with D-A-A units was first constructed by introducing electron-rich diarylamine unit, electron-deficient benzothiazole and Co-porphyrin units. Compared with two-component COFs, the designed COF exhibit elevated electronic conductivity, enhanced reducibility, high efficiency charge transfer, further improving the electrocatalytic CO2RR performance with the faradic efficiency of 97.2 % at -0.8 V and high activity with the partial current density of 27.85 mA cm-2 at -1.0 V which exceed other two-component COFs. Theoretical calculations demonstrate that catalytic sites in three-component COF have suitable binding ability of the intermediates, which are benefit for formation of *COOH and desorption of *CO. This work offers valuable insights for the advancement of multi-component COFs, enabling modulated charge transfer to improve the CO2RR activity.
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Affiliation(s)
- Minghao Liu
- CAS Key Laboratory of Low-Carbon Conversion Science and Engineering Shanghai Advanced Research Institute (SARI), Chinese Academy of Sciences (CAS), Shanghai, 201210, P. R. China
- Department of Chemical and Environmental Engineering, University of Nottingham Ningbo China, Ningbo, 315199, P.R. China
| | - Cheng-Xing Cui
- School of Chemistry and Chemical Engineering, Institute of Computational Chemistry, Henan Institute of Science and Technology, Xinxiang, 453003, P. R. China
| | - Shuai Yang
- CAS Key Laboratory of Low-Carbon Conversion Science and Engineering Shanghai Advanced Research Institute (SARI), Chinese Academy of Sciences (CAS), Shanghai, 201210, P. R. China
| | - Xiubei Yang
- CAS Key Laboratory of Low-Carbon Conversion Science and Engineering Shanghai Advanced Research Institute (SARI), Chinese Academy of Sciences (CAS), Shanghai, 201210, P. R. China
- School of Chemical Engineering Beijing 100049, University of Chinese Academy of Sciences, Beijing, 100049, China
| | - Xuewen Li
- CAS Key Laboratory of Low-Carbon Conversion Science and Engineering Shanghai Advanced Research Institute (SARI), Chinese Academy of Sciences (CAS), Shanghai, 201210, P. R. China
- School of Chemical Engineering Beijing 100049, University of Chinese Academy of Sciences, Beijing, 100049, China
| | - Jun He
- Department of Chemical and Environmental Engineering, University of Nottingham Ningbo China, Ningbo, 315199, P.R. China
| | - Qing Xu
- CAS Key Laboratory of Low-Carbon Conversion Science and Engineering Shanghai Advanced Research Institute (SARI), Chinese Academy of Sciences (CAS), Shanghai, 201210, P. R. China
- School of Chemical Engineering Beijing 100049, University of Chinese Academy of Sciences, Beijing, 100049, China
| | - Gaofeng Zeng
- CAS Key Laboratory of Low-Carbon Conversion Science and Engineering Shanghai Advanced Research Institute (SARI), Chinese Academy of Sciences (CAS), Shanghai, 201210, P. R. China
- School of Chemical Engineering Beijing 100049, University of Chinese Academy of Sciences, Beijing, 100049, China
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Guo Z, Yang S, Liu M, Xu Q, Zeng G. Construction of Core-Shelled Covalent/Metal-Organic Frameworks for Oxygen Evolution Reaction. SMALL (WEINHEIM AN DER BERGSTRASSE, GERMANY) 2024; 20:e2308598. [PMID: 38054767 DOI: 10.1002/smll.202308598] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 09/26/2023] [Revised: 11/15/2023] [Indexed: 12/07/2023]
Abstract
Oxygen evolution reaction (OER) is the half-reaction in zinc-air batteries and water splitting. Developing highly efficient catalysts toward OER is a challenge due to the difficulty of removing four electrons from two water molecules. Covalent organic frameworks (COFs) provide the new chance to construct the highly active catalysts for OER, because they have controlled skeletons, porosities, and well-defined catalytic sites. In this work, core-shell hybrids of COF and metal-organic frameworks (MOFs) have first demonstrated to catalyze the OER. The synergetic effects between the COF-shell and MOF-core render the catalyst with higher activity than those from the COF and MOF. And the catalyst achieved an overpotential of 328 mV, with a Tafel slope of 43.23 mV dec-1 in 1 m KOH. The theoretical calculation revealed that the high activity is from the Fe sites in the catalyst, which has suitable binding ability of reactant intermediate (OOH*), and thus contributed high activity. This work gives a new insight to designing COFs in electrochemical energy storage and conversion systems.
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Affiliation(s)
- Zhuangyan Guo
- School of Physical Science and Technology, ShanghaiTech University, Shanghai, 201210, China
- CAS Key Laboratory of Low-carbon Conversion Science and Engineering, Shanghai Advanced Research Institute, Chinese Academy of Science, Shanghai, 201210, China
| | - Shuai Yang
- School of Physical Science and Technology, ShanghaiTech University, Shanghai, 201210, China
- CAS Key Laboratory of Low-carbon Conversion Science and Engineering, Shanghai Advanced Research Institute, Chinese Academy of Science, Shanghai, 201210, China
| | - Minghao Liu
- CAS Key Laboratory of Low-carbon Conversion Science and Engineering, Shanghai Advanced Research Institute, Chinese Academy of Science, Shanghai, 201210, China
| | - Qing Xu
- CAS Key Laboratory of Low-carbon Conversion Science and Engineering, Shanghai Advanced Research Institute, Chinese Academy of Science, Shanghai, 201210, China
- School of Chemical Engineering, University of Chinese Academy of Sciences, Beijing, 100049, China
| | - Gaofeng Zeng
- CAS Key Laboratory of Low-carbon Conversion Science and Engineering, Shanghai Advanced Research Institute, Chinese Academy of Science, Shanghai, 201210, China
- School of Chemical Engineering, University of Chinese Academy of Sciences, Beijing, 100049, China
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Wu Y, Wang R, Kim Y. Single-Atom Catalysts on Covalent Organic Frameworks for Energy Applications. ACS APPLIED MATERIALS & INTERFACES 2024. [PMID: 38329718 DOI: 10.1021/acsami.3c17662] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 02/09/2024]
Abstract
Single-atom catalysts (SACs) have been investigated and applied to energy conversion devices. However, issues of metal agglomeration, low metal loading, and substrate stability have hindered realization of the SACs' full potential. Recently, covalent organic framework (COF)-based SACs have emerged as promising materials to enable highly efficient catalytic reactions. Here, we summarize the representative COF-based SACs and their wide application in clean energy devices and conversion reactions, such as hydrogen evolution reaction, carbon dioxide reduction reaction, nitrogen reduction reaction, oxygen reduction reaction, and oxygen evolution reaction. Based on their catalysis conditions, these reactions are categorized into photocatalyzed and electrocatalyzed reactions. We also summarize their design strategies, including heteroatom inclusion, donor-acceptor pairs, pore engineering, interface engineering, etc. Although COF-based SACs are promising, more efforts, such as linkage engineering, functional groups, ionization, multifunctional sites for cocatalyzed systems, etc., could improve them to be the ideal SAC materials. At the end, we provide our perspectives on where the field will proceed in the next 5 years.
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Affiliation(s)
- Yurong Wu
- Department of Chemical and Biological Engineering, The Hong Kong University of Science and Technology, Hong Kong, SAR, China
| | - Rui Wang
- Department of Chemical and Biological Engineering, The Hong Kong University of Science and Technology, Hong Kong, SAR, China
| | - Yoonseob Kim
- Department of Chemical and Biological Engineering, The Hong Kong University of Science and Technology, Hong Kong, SAR, China
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Liu M, Jiang D, Fu Y, Zheng Chen G, Bi S, Ding X, He J, Han BH, Xu Q, Zeng G. Modulating Skeletons of Covalent Organic Framework for High-Efficiency Gold Recovery. Angew Chem Int Ed Engl 2024; 63:e202317015. [PMID: 37983587 DOI: 10.1002/anie.202317015] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/09/2023] [Revised: 11/20/2023] [Accepted: 11/20/2023] [Indexed: 11/22/2023]
Abstract
Covalent organic frameworks (COFs) have attracted considerable attention as adsorbents for capturing and separating gold from electronic wastes. To enhance the binding capture efficiency, constructing hydrogen-bond nanotraps along the pore walls was one of the most widely adopted approaches. However, the development of absorbing skeletons was ignored due to the weak binding ability of the gold salts (Au). Herein, we demonstrated skeleton engineering to construct highly efficiently absorbs for Au capture. The strong electronic donating feature of diarylamine units enhanced the electronic density of binding sites (imine-linkage) and thus resulted in high capacities over 1750 mg g-1 for all three COFs. Moreover, the absorbing performance was further improved via the ionization of diarylamine units. The ionic COF achieved 90 % of the maximal adsorption capacity, 1.63 times of that from the charge-neutral COF within ten minutes, and showed remarkable uptakes of 1834 mg g-1 , exceptional selectivity (97.45 %) and cycling stability. The theoretical calculation revealed the binding sites altering from imine bonds to ionic amine sites after ionization of the frameworks, which enabled to bind the AuCl4 - via coulomb force and contributed to enhanced absorbing kinetics. This work inspires us to design molecular/ionic capture based on COFs.
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Affiliation(s)
- Minghao Liu
- CAS Key Laboratory of Low-Carbon Conversion Science and Engineering, Shanghai Advanced Research Institute (SARI), Chinese Academy of Sciences (CAS), Shanghai, 201210, P. R. China
- Department of Chemical and Environmental Engineering, University of Nottingham Ningbo China, Ningbo, 315199, P. R. China
| | - Di Jiang
- CAS Key Laboratory of Nanosystem and Hierarchical Fabrication, CAS Center for Excellence in Nanoscience, National Center for Nanoscience and Technology, Beijing, 100190, China
- Sino-Danish Center for Education and Research, Sino-Danish College University of Chinese Academy of Sciences, Beijing, 100049, P. R. China
| | - Yubin Fu
- Center for Advancing Electronics Dresden (cfaed) & Faculty of Chemistry and Food Chemistry, Technische Universität Dresden, 01062, Dresden, Germany
| | - George Zheng Chen
- Department of Chemical and Environmental Engineering, University of Nottingham, Nottingham, NG7 2RD, UK
| | - Shuai Bi
- School of Chemistry, Chemical Engineering and Biotechnology, Nanyang Technological University, 21 Nanyang Link, Singapore, 637371, Singapore
| | - Xuesong Ding
- CAS Key Laboratory of Nanosystem and Hierarchical Fabrication, CAS Center for Excellence in Nanoscience, National Center for Nanoscience and Technology, Beijing, 100190, China
| | - Jun He
- Department of Chemical and Environmental Engineering, University of Nottingham Ningbo China, Ningbo, 315199, P. R. China
- Nottingham Ningbo China Beacon of Excellence Research and Innovation Institute, University of Nottingham, Ningbo, 315100, China
| | - Bao-Hang Han
- CAS Key Laboratory of Nanosystem and Hierarchical Fabrication, CAS Center for Excellence in Nanoscience, National Center for Nanoscience and Technology, Beijing, 100190, China
- Sino-Danish Center for Education and Research, Sino-Danish College University of Chinese Academy of Sciences, Beijing, 100049, P. R. China
| | - Qing Xu
- CAS Key Laboratory of Low-Carbon Conversion Science and Engineering, Shanghai Advanced Research Institute (SARI), Chinese Academy of Sciences (CAS), Shanghai, 201210, P. R. China
- School of Chemical Engineering, University of Chinese Academy of Sciences, Beijing, 100049, China
| | - Gaofeng Zeng
- CAS Key Laboratory of Low-Carbon Conversion Science and Engineering, Shanghai Advanced Research Institute (SARI), Chinese Academy of Sciences (CAS), Shanghai, 201210, P. R. China
- School of Chemical Engineering, University of Chinese Academy of Sciences, Beijing, 100049, China
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Wu Z, Feng L, Luo J, Zhao Y, Yu X, Li Y, Wang W, Sui Z, Tian X, Chen Q. Metalation of functionalized benzoquinoline-linked COFs for electrocatalytic oxygen reduction and lithium-sulfur batteries. J Colloid Interface Sci 2023; 650:1466-1475. [PMID: 37481784 DOI: 10.1016/j.jcis.2023.07.096] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/28/2023] [Revised: 07/10/2023] [Accepted: 07/15/2023] [Indexed: 07/25/2023]
Abstract
It is worthwhile to explore and develop multifunctional composites with unique advantages for energy conversion and utilization. Post-synthetic modification (PSM) strategies can endow novel properties to already excellent covalent organic frameworks (COFs). In this study, we prepared a range of COF-based composites via a multi-step PSM strategy. COF-Ph-OH was acquired by demethylation between anhydrous BBr3 and - OMe, and then, M@COF-Ph-OH was further obtained by forming the N - M - O structure. COF-Ph-OH exhibited a 2e--dominated oxygen reduction reaction (ORR) pathway with high H2O2 selectivity, while M@COF-Ph-OH exhibited a 4e--dominated ORR pathway with low H2O2 selectivity, which was due to the introduction of a metal salt with a d electron structure that facilitated the acquisition of electrons and changed the adsorption energy of the reaction intermediate (*OOH). It was proven that the d electron structure was effective at regulating the reaction pathway of the electrocatalytic ORR. Moreover, Co@COF-Ph-OH showed better 4e- ORR properties than Fe@COF-Ph-OH and Ni@COF-Ph-OH. In addition, compared with the other sulfur-impregnated COF-based composites examined in this study, S-Co@COF-Ph-OH had a larger initial capacity, a weaker impedance, and a stronger cycling durability in Li-S batteries, which was attributed to the unique porous structure ensuring high sulfur utilization, the loaded cobalt accelerating LiPS electrostatic adsorption and promoting LiPS catalytic conversion, and the benzoquinoline ring structure being ultra-stable. This work offers not only a rational and feasible strategy for the synthesis of multifunctional COF-based composites, but also promotes their application in electrochemistry.
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Affiliation(s)
- Zhuangzhuang Wu
- State Key Laboratory of Marine Resource Utilization in South China Sea, Hainan Provincial Key Lab of Fine Chemistry, School of Chemical Engineering and Technology, Hainan University, Haikou 570228, PR China
| | - Lijuan Feng
- School of Bioengineering, Zhuhai Campus of Zunyi Medical University, Zhuhai 519041, PR China
| | - Junming Luo
- State Key Laboratory of Marine Resource Utilization in South China Sea, Hainan Provincial Key Lab of Fine Chemistry, School of Chemical Engineering and Technology, Hainan University, Haikou 570228, PR China
| | - Yuzhen Zhao
- State Key Laboratory of Marine Resource Utilization in South China Sea, Hainan Provincial Key Lab of Fine Chemistry, School of Chemical Engineering and Technology, Hainan University, Haikou 570228, PR China
| | - Xinxin Yu
- State Key Laboratory of Marine Resource Utilization in South China Sea, Hainan Provincial Key Lab of Fine Chemistry, School of Chemical Engineering and Technology, Hainan University, Haikou 570228, PR China
| | - Yongpeng Li
- School of Chemistry & Chemical Engineering, Yantai University, Yantai 264005, PR China
| | - Wenxin Wang
- State Key Laboratory of Marine Resource Utilization in South China Sea, Hainan Provincial Key Lab of Fine Chemistry, School of Chemical Engineering and Technology, Hainan University, Haikou 570228, PR China
| | - Zhuyin Sui
- School of Chemistry & Chemical Engineering, Yantai University, Yantai 264005, PR China.
| | - Xinlong Tian
- State Key Laboratory of Marine Resource Utilization in South China Sea, Hainan Provincial Key Lab of Fine Chemistry, School of Chemical Engineering and Technology, Hainan University, Haikou 570228, PR China.
| | - Qi Chen
- State Key Laboratory of Marine Resource Utilization in South China Sea, Hainan Provincial Key Lab of Fine Chemistry, School of Chemical Engineering and Technology, Hainan University, Haikou 570228, PR China.
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Liu M, Zhao X, Yang S, Yang X, Li X, He J, Chen GZ, Xu Q, Zeng G. Modulating the Density of Catalytic Sites in Multiple-Component Covalent Organic Frameworks for Electrocatalytic Carbon Dioxide Reduction. ACS APPLIED MATERIALS & INTERFACES 2023; 15:44384-44393. [PMID: 37672678 DOI: 10.1021/acsami.3c10802] [Citation(s) in RCA: 2] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 09/08/2023]
Abstract
It is generally assumed that the more metal atoms in covalent organic frameworks (COFs) contribute to higher activity toward electrocatalytic carbon dioxide reduction (CO2RR) and hindered us in exploring the correlation between the density of catalytic sites and catalytic performances. Herein, we have constructed quantitative density of catalytic sites in multiple COFs for CO2RR, in which the contents of phthalocyanine (H2Pc) and nickel phthalocyanine (NiPc) units were preciously controlled. With a molar ratio of 1/1 for the H2Pc and NiPc units in COFs, the catalyst achieved the highest selectivity with a carbon monoxide Faradaic efficiency (FECO) of 95.37% and activity with a turnover frequency (TOF) of 4713.53 h-1. In the multiple H2Pc/NiPc-COFs, the electron-donating features of the H2Pc units provide electron transport to the NiPc centers and thus improved the binding ability of CO2 and intermediates on the NiPc units. The theoretical calculation further confirmed that the H2Pc units donated their electrons to the NiPc units in the frameworks, enhanced the electron density of the Ni sites, and improved the binding ability with Lewis acidic CO2 molecules, thereby boosting the CO2RR performance. This study provides us with new insight into the design of highly active catalysts in electrocatalytic systems.
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Affiliation(s)
- Minghao Liu
- CAS Key Laboratory of Low-Carbon Conversion Science and Engineering, Shanghai Advanced Research Institute, Chinese Academy of Sciences, Shanghai 201210, China
- Department of Chemical and Environmental Engineering, University of Nottingham Ningbo China, Ningbo 315199, China
| | - Xingyue Zhao
- CAS Key Laboratory of Low-Carbon Conversion Science and Engineering, Shanghai Advanced Research Institute, Chinese Academy of Sciences, Shanghai 201210, China
| | - Shuai Yang
- CAS Key Laboratory of Low-Carbon Conversion Science and Engineering, Shanghai Advanced Research Institute, Chinese Academy of Sciences, Shanghai 201210, China
| | - Xiubei Yang
- CAS Key Laboratory of Low-Carbon Conversion Science and Engineering, Shanghai Advanced Research Institute, Chinese Academy of Sciences, Shanghai 201210, China
- School of Chemical Engineering, University of Chinese Academy of Sciences, Beijing 100049, China
| | - Xuewen Li
- CAS Key Laboratory of Low-Carbon Conversion Science and Engineering, Shanghai Advanced Research Institute, Chinese Academy of Sciences, Shanghai 201210, China
- School of Chemical Engineering, University of Chinese Academy of Sciences, Beijing 100049, China
| | - Jun He
- Department of Chemical and Environmental Engineering, University of Nottingham Ningbo China, Ningbo 315199, China
- Nottingham Ningbo China Beacon of Excellence Research and Innovation Institute, Ningbo 315100, China
| | - George Zheng Chen
- Department of Chemical and Environmental Engineering, University of Nottingham, Nottingham NG7 2RD, U.K
| | - Qing Xu
- CAS Key Laboratory of Low-Carbon Conversion Science and Engineering, Shanghai Advanced Research Institute, Chinese Academy of Sciences, Shanghai 201210, China
- School of Chemical Engineering, University of Chinese Academy of Sciences, Beijing 100049, China
| | - Gaofeng Zeng
- CAS Key Laboratory of Low-Carbon Conversion Science and Engineering, Shanghai Advanced Research Institute, Chinese Academy of Sciences, Shanghai 201210, China
- School of Chemical Engineering, University of Chinese Academy of Sciences, Beijing 100049, China
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Liu M, Yang S, Yang X, Cui CX, Liu G, Li X, He J, Chen GZ, Xu Q, Zeng G. Post-synthetic modification of covalent organic frameworks for CO 2 electroreduction. Nat Commun 2023; 14:3800. [PMID: 37365184 DOI: 10.1038/s41467-023-39544-9] [Citation(s) in RCA: 19] [Impact Index Per Article: 19.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/18/2023] [Accepted: 06/16/2023] [Indexed: 06/28/2023] Open
Abstract
To achieve high-efficiency catalysts for CO2 reduction reaction, various catalytic metal centres and linker molecules have been assembled into covalent organic frameworks. The amine-linkages enhance the binding ability of CO2 molecules, and the ionic frameworks enable to improve the electronic conductivity and the charge transfer along the frameworks. However, directly synthesis of covalent organic frameworks with amine-linkages and ionic frameworks is hardly achieved due to the electrostatic repulsion and predicament for the strength of the linkage. Herein, we demonstrate covalent organic frameworks for CO2 reduction reaction by modulating the linkers and linkages of the template covalent organic framework to build the correlation between the catalytic performance and the structures of covalent organic frameworks. Through the double modifications, the CO2 binding ability and the electronic states are well tuned, resulting in controllable activity and selectivity for CO2 reduction reaction. Notably, the dual-functional covalent organic framework achieves high selectivity with a maximum CO Faradaic efficiency of 97.32% and the turnover frequencies value of 9922.68 h-1, which are higher than those of the base covalent organic framework and the single-modified covalent organic frameworks. Moreover, the theoretical calculations further reveal that the higher activity is attributed to the easier formation of immediate *CO from COOH*. This study provides insights into developing covalent organic frameworks for CO2 reduction reaction.
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Affiliation(s)
- Minghao Liu
- CAS Key Laboratory of Low-Carbon Conversion Science and Engineering, Shanghai Advanced Research Institute, Chinese Academy of Sciences, Shanghai, 201210, P. R. China
- Department of Chemical and Environmental Engineering, University of Nottingham Ningbo China, Ningbo, 315199, P. R. China
| | - Shuai Yang
- CAS Key Laboratory of Low-Carbon Conversion Science and Engineering, Shanghai Advanced Research Institute, Chinese Academy of Sciences, Shanghai, 201210, P. R. China
- School of Physical Science and Technology, ShanghaiTech University, Shanghai, 201210, P. R. China
| | - Xiubei Yang
- CAS Key Laboratory of Low-Carbon Conversion Science and Engineering, Shanghai Advanced Research Institute, Chinese Academy of Sciences, Shanghai, 201210, P. R. China
- School of Chemical Engineering, University of Chinese Academy of Sciences, Beijing, 100049, P. R. China
| | - Cheng-Xing Cui
- School of Chemistry and Chemical Engineering, Institute of Computational Chemistry, Henan Institute of Science and Technology, Xinxiang, 453003, P. R. China.
- ZhengZhou JiShu Institute of AI Science, Zhengzhou, 451162, P. R. China.
| | - Guojuan Liu
- CAS Key Laboratory of Low-Carbon Conversion Science and Engineering, Shanghai Advanced Research Institute, Chinese Academy of Sciences, Shanghai, 201210, P. R. China
- School of Chemical Engineering, University of Chinese Academy of Sciences, Beijing, 100049, P. R. China
| | - Xuewen Li
- CAS Key Laboratory of Low-Carbon Conversion Science and Engineering, Shanghai Advanced Research Institute, Chinese Academy of Sciences, Shanghai, 201210, P. R. China
- School of Chemical Engineering, University of Chinese Academy of Sciences, Beijing, 100049, P. R. China
| | - Jun He
- Department of Chemical and Environmental Engineering, University of Nottingham Ningbo China, Ningbo, 315199, P. R. China
| | - George Zheng Chen
- Department of Chemical and Environmental Engineering, University of Nottingham, Nottingham, NG7 2RD, UK
| | - Qing Xu
- CAS Key Laboratory of Low-Carbon Conversion Science and Engineering, Shanghai Advanced Research Institute, Chinese Academy of Sciences, Shanghai, 201210, P. R. China.
- School of Chemical Engineering, University of Chinese Academy of Sciences, Beijing, 100049, P. R. China.
| | - Gaofeng Zeng
- CAS Key Laboratory of Low-Carbon Conversion Science and Engineering, Shanghai Advanced Research Institute, Chinese Academy of Sciences, Shanghai, 201210, P. R. China.
- School of Chemical Engineering, University of Chinese Academy of Sciences, Beijing, 100049, P. R. China.
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An S, Li X, Shang S, Xu T, Yang S, Cui CX, Peng C, Liu H, Xu Q, Jiang Z, Hu J. One-Dimensional Covalent Organic Frameworks for the 2e - Oxygen Reduction Reaction. Angew Chem Int Ed Engl 2023; 62:e202218742. [PMID: 36655733 DOI: 10.1002/anie.202218742] [Citation(s) in RCA: 10] [Impact Index Per Article: 10.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/19/2022] [Revised: 01/06/2023] [Accepted: 01/19/2023] [Indexed: 01/20/2023]
Abstract
Two-dimensional covalent organic frameworks (2D COFs) are often employed for electrocatalytic systems because of their structural diversity. However, the efficiency of atom utilization is still in need of improvement, because the catalytic centers are located in the basal layers and it is difficult for the electrolytes to access them. Herein, we demonstrate the use of 1D COFs for the 2e- oxygen reduction reaction (ORR). The use of different four-connectivity blocks resulted in the prepared 1D COFs displaying good crystallinity, high surface areas, and excellent chemical stability. The more exposed catalytic sites resulted in the 1D COFs showing large electrochemically active surface areas, 4.8-fold of that of a control 2D COF, and thus enabled catalysis of the ORR with a higher H2 O2 selectivity of 85.8 % and activity, with a TOF value of 0.051 s-1 at 0.2 V, than a 2D COF (72.9 % and 0.032 s-1 ). This work paves the way for the development of COFs with low dimensions for electrocatalysis.
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Affiliation(s)
- Shuhao An
- School of Chemistry and Molecular Engineering, East China University of Science and Technology, 200237, Shanghai, P. R. China
| | - Xuewen Li
- CAS Key Laboratory of Low-Carbon Conversion Science and Engineering, Shanghai Advanced Research Institute (SARI), Chinese Academy of Sciences (CAS), 201210, Shanghai, P. R. China.,School of Chemical Engineering, University of Chinese Academy of Sciences, 100049, Beijing, P. R. China.,Shanghai Institute of Applied Physics, Chinese Academy of Science, 201210, Shanghai, P. R. China
| | - Shuaishuai Shang
- School of Chemistry and Molecular Engineering, East China University of Science and Technology, 200237, Shanghai, P. R. China
| | - Ting Xu
- School of Chemistry and Molecular Engineering, East China University of Science and Technology, 200237, Shanghai, P. R. China
| | - Shuai Yang
- CAS Key Laboratory of Low-Carbon Conversion Science and Engineering, Shanghai Advanced Research Institute (SARI), Chinese Academy of Sciences (CAS), 201210, Shanghai, P. R. China.,School of Chemical Engineering, University of Chinese Academy of Sciences, 100049, Beijing, P. R. China
| | - Cheng-Xing Cui
- School of Chemistry and Chemical Engineering, Henan Institute of Science and Technology, 453003, Xinxiang, P. R. China
| | - Changjun Peng
- School of Chemistry and Molecular Engineering, East China University of Science and Technology, 200237, Shanghai, P. R. China
| | - Honglai Liu
- School of Chemistry and Molecular Engineering, East China University of Science and Technology, 200237, Shanghai, P. R. China
| | - Qing Xu
- CAS Key Laboratory of Low-Carbon Conversion Science and Engineering, Shanghai Advanced Research Institute (SARI), Chinese Academy of Sciences (CAS), 201210, Shanghai, P. R. China.,School of Chemical Engineering, University of Chinese Academy of Sciences, 100049, Beijing, P. R. China
| | - Zheng Jiang
- CAS Key Laboratory of Low-Carbon Conversion Science and Engineering, Shanghai Advanced Research Institute (SARI), Chinese Academy of Sciences (CAS), 201210, Shanghai, P. R. China.,School of Chemical Engineering, University of Chinese Academy of Sciences, 100049, Beijing, P. R. China.,Shanghai Institute of Applied Physics, Chinese Academy of Science, 201210, Shanghai, P. R. China
| | - Jun Hu
- School of Chemistry and Molecular Engineering, East China University of Science and Technology, 200237, Shanghai, P. R. China
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