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Li Q, Luo L, Xu C, Song S, Wang Y, Zhang L, Tang Y, Texter J. Palladium Enhanced Iron Active Site - An Efficient Dual-Atom Catalyst for Oxygen Electroreduction. SMALL (WEINHEIM AN DER BERGSTRASSE, GERMANY) 2023; 19:e2303321. [PMID: 37211682 DOI: 10.1002/smll.202303321] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 04/19/2023] [Revised: 05/11/2023] [Indexed: 05/23/2023]
Abstract
Metal-nitrogen-carbon (M-C/N) electrocatalysts have been shown to have satisfactory catalytic activity and long-term durability for the oxygen reduction reaction (ORR). Here, a strategy to prepare a new electrocatalyst (Fe&Pd-C/N) using a unique metal-containing ionic liquid (IL) is exploited, in which Fe & Pd ions are positively charged species atomically dispersed by coordination to the N of the N-doped C substrate, C/N. X-ray absorption fine structure, XPS and aberration-corrected transmission electron microscopy results verified a well-defined dual-atom configuration comprising Fe+2.x -N4 coupled Pd2+ -N4 sites and well-defined spatial distribution. Electronic control of a coupled Fe-Pd structure produces an electrocatalyst that exhibits superior performance with enhanced activity and durability for the ORR compared to that of commercial Pt/C (20%, Johnson Matthey) in both alkaline and acid media. Density functional theory calculations indicate that Pd atom can enhance the catalytic activity of the Fe active sites adjacent to Pd sites by changing the electronic orbital structure and Bader charge of the Fe centers. The excellent catalytic performance of the Fe&Pd-C/N electrocatalyst is demonstrated in zinc-air batteries and hydrogen-air fuel cells.
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Affiliation(s)
- Qi Li
- Department of Materials Science, School of Chemistry and Chemical Engineering, Nantong University, Nantong, Jiangsu, 226019, P. R. China
| | - Liangmei Luo
- Department of Materials Science, School of Chemistry and Chemical Engineering, Nantong University, Nantong, Jiangsu, 226019, P. R. China
| | - Chenqi Xu
- Department of Materials Science, School of Chemistry and Chemical Engineering, Nantong University, Nantong, Jiangsu, 226019, P. R. China
| | - Shizhu Song
- Department of Materials Science, School of Chemistry and Chemical Engineering, Nantong University, Nantong, Jiangsu, 226019, P. R. China
| | - Yanqing Wang
- Department of Materials Science, School of Chemistry and Chemical Engineering, Nantong University, Nantong, Jiangsu, 226019, P. R. China
| | - Lifang Zhang
- Department of Materials Science, School of Chemistry and Chemical Engineering, Nantong University, Nantong, Jiangsu, 226019, P. R. China
| | - Yanfeng Tang
- Department of Materials Science, School of Chemistry and Chemical Engineering, Nantong University, Nantong, Jiangsu, 226019, P. R. China
| | - John Texter
- Coating Research Institute, School of Engineering, Eastern Michigan University, Ypsilanti, MI, 48197, USA
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Wu S, Xu X, Wang Z, Ke X, Gu S, Zhou G, Wang L. Engineering Strategy for Enhancing the Co Loading of Co-N 4-C Single-Atomic Catalysts Based on the ZIF-67@Yeast Construction. ACS APPLIED MATERIALS & INTERFACES 2023; 15:40451-40458. [PMID: 37581380 DOI: 10.1021/acsami.3c06886] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 08/16/2023]
Abstract
The Co-N4-C single-atom catalysts (SACs) have attracted great research interest in the energy storage and conversion fields owing to 100% atom utilization. However, enhancing the Co loading for higher electrocatalytic performance is still challenging. In this context, we propose an engineering strategy to fabricate the high Co atomic loading Co-N4-C SACs based on the zeolitic imidazolate framework-67 (ZIF-67)@yeast construction. The rich amino groups provide the possibility for Co2+ ion anchorage and ZIF-67@yeast construction via the biomineralization of yeast cells. The functional design induces the formation of Co-N4-C sites and regulates the porosity for exposure of such Co-N4-C sites. As a result, the Co-N4-C sites were anchored on spherical micrometer flower carbonaceous materials through our novel strategy. The as-obtained optimal sample exhibited a Co atomic loading of 12.18 wt % and a specific surface area of 403.26 m2 g-1. High Co atomic loading and large specific surface area delivered excellent electrocatalytic kinetics as well as a high discharge voltage of 1.08 V at 10 mA cm-2 for more than 100 h in Zn-air batteries. This work represents a promising strategy for fabricating high-loading SACs with high activity and good durability.
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Affiliation(s)
- Shuo Wu
- Key Laboratory of Fine Chemicals in Universities of Shandong, Jinan Engineering Laboratory for Multi-Scale Functional Materials, School of Chemistry and Chemical Engineering, Qilu University of Technology (Shandong Academy of Sciences), Jinan 250353, China
| | - Xiaolong Xu
- Key Laboratory of Fine Chemicals in Universities of Shandong, Jinan Engineering Laboratory for Multi-Scale Functional Materials, School of Chemistry and Chemical Engineering, Qilu University of Technology (Shandong Academy of Sciences), Jinan 250353, China
- School of Materials Science and Engineering, Qilu University of Technology (Shandong Academy of Sciences), Jinan 250353, China
| | - Zelin Wang
- Beijing Key Laboratory of Microstructure and Properties of Solids, Faculty of Materials and Manufacturing, Beijing University of Technology, Beijing 100124, China
| | - Xiaoxing Ke
- Beijing Key Laboratory of Microstructure and Properties of Solids, Faculty of Materials and Manufacturing, Beijing University of Technology, Beijing 100124, China
| | - Shaonan Gu
- Key Laboratory of Fine Chemicals in Universities of Shandong, Jinan Engineering Laboratory for Multi-Scale Functional Materials, School of Chemistry and Chemical Engineering, Qilu University of Technology (Shandong Academy of Sciences), Jinan 250353, China
| | - Guowei Zhou
- Key Laboratory of Fine Chemicals in Universities of Shandong, Jinan Engineering Laboratory for Multi-Scale Functional Materials, School of Chemistry and Chemical Engineering, Qilu University of Technology (Shandong Academy of Sciences), Jinan 250353, China
| | - Lianzhou Wang
- Australian Institute for Bioengineering and Nanotechnology, School of Chemical Engineering, The University of Queensland, St Lucia, Queensland 4072, Australia
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Martynenko EA, Vostrikov SV, Shafigulin RV, Vinogradov KY, Tokranova EO, Bulanova AV, Zhu H. Palladium-containing catalysts based on mesostructured material of the cmk type in the reaction of oxygen electroreduction. J APPL ELECTROCHEM 2022. [DOI: 10.1007/s10800-022-01808-5] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/30/2022]
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Sub-20-nm anatase TiO2 anchored on hollow carbon spheres for enhanced photocatalytic degradation of reactive red 195. J Colloid Interface Sci 2022; 617:663-672. [DOI: 10.1016/j.jcis.2022.03.049] [Citation(s) in RCA: 2] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/16/2022] [Revised: 03/08/2022] [Accepted: 03/11/2022] [Indexed: 11/21/2022]
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Song S, Li Q, Zhang L, Wang Y, Liu X. Imidazolium ionic Liquid-Regulated Sub-5-nm Pt(111) with a stable configuration anchored on hollow carbon nanoshells for efficient oxygen reduction. J Colloid Interface Sci 2022; 606:177-191. [PMID: 34390988 DOI: 10.1016/j.jcis.2021.08.010] [Citation(s) in RCA: 7] [Impact Index Per Article: 3.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/16/2021] [Revised: 07/04/2021] [Accepted: 08/01/2021] [Indexed: 11/27/2022]
Abstract
Here, N-doped hollow carbon sphere (NHCS)-supported (111)-plane-engineered sub-5-nm Pt (Pt-NHCS) catalysts regulated precisely by imidazolium ionic liquids were synthesized successfully and used to catalyze oxygen reduction. The (111)-plane engineered Pt nanocrystals with a diameter of 4.5 ± 0.5 nm were homogeneously deposited on the 3-dimensional spherical nanoshells. The resulting Pt nanocrystals anchored on the carbon skeleton exhibit a stable configuration in both alkaline and acid electrolytes with the help of imidazolium cations and pyrolysis. Among all as-prepared catalysts, the optimized Pt-NHCS shows remarkable long-term durability. Specifically, Pt-NHCS maintains 95.3% of the original current density after 10,000 potential cycles, while Pt/C benchmarks exhibit a retention of 78.5%. Accelerated durability test results indicate that Pt-NHCS exhibits a high efficiency of 96 % in comparison with initial current density, while a value of 86% for Pt/C. Density functional theory calculations demonstrate that reactive Pt(111) planes with well-defined Schottky defects and vacancies adsorb and activate oxygen molecule rapidly while desorbing the reaction intermediates.
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Affiliation(s)
- Shizhu Song
- School of Chemistry and Chemical Engineering, Nantong University, Nantong 226019, Jiangsu, China
| | - Qi Li
- School of Chemistry and Chemical Engineering, Nantong University, Nantong 226019, Jiangsu, China.
| | - Lifang Zhang
- School of Chemistry and Chemical Engineering, Nantong University, Nantong 226019, Jiangsu, China
| | - Yanqing Wang
- School of Chemistry and Chemical Engineering, Nantong University, Nantong 226019, Jiangsu, China.
| | - Xiaojuan Liu
- State Key Laboratory of Rare Earth Resource Utilization, Changchun Institute of Applied Chemistry, Chinese Academy of Sciences, Changchun, Jilin 130022, China
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Yan M, Jasin Arachchige L, Dong A, Zhang XL, Dai Z, Sun C. Rational Design of Graphene-Supported Single-Atom Catalysts for Electroreduction of Nitrogen. Inorg Chem 2021; 60:18314-18324. [PMID: 34787407 DOI: 10.1021/acs.inorgchem.1c02946] [Citation(s) in RCA: 12] [Impact Index Per Article: 4.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/30/2022]
Abstract
Critically, the central metal atoms along with their coordination environment play a significant role in the catalytic performance of single-atom catalysts (SACs). Herein, 12 single Fe, Mo, and Ru atoms supported on defective graphene are theoretically deigned for investigation of their structural and electronic properties and catalytic nitrogen reduction reaction (NRR) performance using first-principles calculations. Our results reveal that graphene with vacancies can be an ideal anchoring site for stabilizing isolated metal atoms owing to the strong metal-support interaction, forming stable TMCx or TMNx active centers (x = 3 or 4). Six SACs are screened as promising NRR catalyst candidates with excellent activity and selectivity during NRR, and RuN3 is identified as the optimal one with an overpotential of ≥0.10 V via the distal mechanism.
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Affiliation(s)
- Min Yan
- Science & Technology Innovation Institute, Dongguan University of Technology, Dongguan 523808, China
| | - Lakshitha Jasin Arachchige
- School of Chemical Engineering and Energy Technology, Dongguan University of Technology, Dongguan 523808, China.,Department of Chemistry and Biotechnology and Center for Translational Atomaterials, Swinburne University of Technology, Hawthorn, Victoria 3122, Australia
| | - Ani Dong
- Department of Computer and Information Science, City College of Dongguan University of Technology, Dongguan 523419, China
| | - Xiao Li Zhang
- State Centre for International Cooperation on Designer Low-Carbon & Environmental Materials, School of Materials Science and Engineering, Zhengzhou University, Zhengzhou 450001, China
| | - Zhongxu Dai
- College of Materials and Chemical Engineering, Key Laboratory of Inorganic Nonmetallic Crystalline and Energy Conversion Materials, China Three Gorges University, Yichang 443002, China
| | - Chenghua Sun
- School of Chemical Engineering and Energy Technology, Dongguan University of Technology, Dongguan 523808, China.,Department of Chemistry and Biotechnology and Center for Translational Atomaterials, Swinburne University of Technology, Hawthorn, Victoria 3122, Australia
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Gao J, Hu Y, Wang Y, Lin X, Hu K, Lin X, Xie G, Liu X, Reddy KM, Yuan Q, Qiu HJ. MOF Structure Engineering to Synthesize CoNC Catalyst with Richer Accessible Active Sites for Enhanced Oxygen Reduction. SMALL (WEINHEIM AN DER BERGSTRASSE, GERMANY) 2021; 17:e2104684. [PMID: 34738730 DOI: 10.1002/smll.202104684] [Citation(s) in RCA: 32] [Impact Index Per Article: 10.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 08/05/2021] [Revised: 09/23/2021] [Indexed: 05/14/2023]
Abstract
Single-atom cobalt-based CoNC are promising low-cost electrocatalysts for oxygen reduction reaction (ORR). However, further increasing the single cobalt-based active sites and the ORR activity remain a major challenge. Herein, an acetate (OAc) assisted metal-organic framework (MOF) structure-engineering strategy is developed to synthesize hierarchical accordion-like MOF with higher loading amount and better spatial isolation of Co and much higher yield when compared with widely reported polyhedron MOF. After pyrolysis, the accordion-structured CoNC (CoNC (A)) is loaded with denser CoN4 active sites (Co: 2.88 wt%), approximately twice that of Co in the CoNC reported. The presence of OAc in MOF also induces the generation of big pores (5-50 nm) for improving the accessibility of active sites and mass transfer during catalytic reactions. Consequently, the CoNC (A) catalyst shows an admirable ORR activity with a E1/2 of 0.89 V (40 mV better than Pt/C) in alkaline electrolytes, outstanding durability, and absolute tolerance to methanol in both alkaline and acidic media. The CoNC-based Zn-air battery exhibits a high specific capacity (976 mAh g-1 Zn ), power density (158 mW cm-2 ), rate capability, and long-term stability. This work demonstrates a reliable approach to construct single atom doped carbon catalysts with denser accessible active sites through MOF structure engineering.
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Affiliation(s)
- Jiaojiao Gao
- School of Materials Science and Engineering, Harbin Institute of Technology, Shenzhen, 518055, China
| | - Yixuan Hu
- Frontier Research Center for Materials Structure, School of Materials Science and Engineering, Shanghai Jiao Tong University, Shanghai, 200240, China
| | - Yu Wang
- School of Materials Science and Engineering, Harbin Institute of Technology, Shenzhen, 518055, China
| | - Xiaorong Lin
- School of Materials Science and Engineering, Harbin Institute of Technology, Shenzhen, 518055, China
| | - Kailong Hu
- School of Materials Science and Engineering, Harbin Institute of Technology, Shenzhen, 518055, China
| | - Xi Lin
- School of Materials Science and Engineering, Harbin Institute of Technology, Shenzhen, 518055, China
| | - Guoqiang Xie
- School of Materials Science and Engineering, Harbin Institute of Technology, Shenzhen, 518055, China
- Shenzhen R&D Center for Al-based Hydrogen Hydrolysis Materials, Shenzhen, 518055, P. R. China
| | - Xingjun Liu
- School of Materials Science and Engineering, Harbin Institute of Technology, Shenzhen, 518055, China
- Shenzhen R&D Center for Al-based Hydrogen Hydrolysis Materials, Shenzhen, 518055, P. R. China
| | - Kolan Madhav Reddy
- Frontier Research Center for Materials Structure, School of Materials Science and Engineering, Shanghai Jiao Tong University, Shanghai, 200240, China
| | - Qunhui Yuan
- School of Materials Science and Engineering, Harbin Institute of Technology, Shenzhen, 518055, China
| | - Hua-Jun Qiu
- School of Materials Science and Engineering, Harbin Institute of Technology, Shenzhen, 518055, China
- Shenzhen R&D Center for Al-based Hydrogen Hydrolysis Materials, Shenzhen, 518055, P. R. China
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