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Xie W, Wang E, Sun Q, Ouyang Z, Tian T, Zhao J, Xiao Y, Lei S, Cheng B. N-regulated three-dimensional turf-like carbon nanosheet loaded with FeCoNi nanoalloys as bifunctional electrocatalysts for durable zinc-air batteries. J Colloid Interface Sci 2024; 673:80-91. [PMID: 38875800 DOI: 10.1016/j.jcis.2024.06.066] [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: 02/21/2024] [Revised: 05/21/2024] [Accepted: 06/07/2024] [Indexed: 06/16/2024]
Abstract
N-regulated three-dimensional (3D) turf-like carbon material loaded with FeCoNi nanoalloys (F-CNS-CNT), composed of carbon nanotubes (CNT) grown in situ on carbon nanosheets(CNS), was synthesized using a low-temperature solution combustion method and organic compounds rich in pyridinic-N. This distinct structure significantly expands the effective electrochemical surface area, revealing an abundance of active sites and enhancing the mass transfer capability for oxygen reduction reaction (ORR) and oxygen evolution reaction (OER). Both experimental observations and theoretical calculations corroborate that the synergy between the FeCoNi nanoalloy and the highly pyridinic N-doped carbon substrate optimizes the adsorption and desorption-free energy of oxygen intermediates, resulting in a remarkable improvement of intrinsic ORR/OER activity. Therefore, the derived F-CNS-CNT electrocatalyst can present a favorable half-wave potential of 0.85 V (ORR) and a lower overpotential of 260 mV (corresponding to a current density of 10 mA cm-2, OER) in alkaline media. Moreover, when employed in the air cathode of a flowable zinc-air battery, the electrocatalyst exhibits exceptional discharge and charge performance, including a high power density of 144.6 mW cm-2, a high specific capacity of 801 mAh g-1, and an impressive cycling stability of 600 cycles at a current density of 10 mA cm-2. Notably, these results markedly surpass those of the commercial catalyst Pt/C + IrO2.
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Affiliation(s)
- Wenju Xie
- Nanoscale Science and Technology Laboratory, Institute for Advanced Study, Nanchang University, Nanchang 330031, PR China; College of Ecology and Resources Engineering, Fujian Provincial Key Laboratory of Eco-Industrial Green Technology, Wuyi University, Fujian 354300, PR China
| | - Eryong Wang
- School of Physics and Materials Science, Nanchang University, Nanchang 330031, PR China
| | - Qinghua Sun
- Nanoscale Science and Technology Laboratory, Institute for Advanced Study, Nanchang University, Nanchang 330031, PR China
| | - Zhiyong Ouyang
- Nanoscale Science and Technology Laboratory, Institute for Advanced Study, Nanchang University, Nanchang 330031, PR China
| | - Tingfang Tian
- School of Physics and Materials Science, Nanchang University, Nanchang 330031, PR China
| | - Jie Zhao
- School of Physics and Materials Science, Nanchang University, Nanchang 330031, PR China
| | - Yanhe Xiao
- School of Physics and Materials Science, Nanchang University, Nanchang 330031, PR China
| | - Shuijin Lei
- School of Physics and Materials Science, Nanchang University, Nanchang 330031, PR China
| | - Baochang Cheng
- Nanoscale Science and Technology Laboratory, Institute for Advanced Study, Nanchang University, Nanchang 330031, PR China; School of Physics and Materials Science, Nanchang University, Nanchang 330031, PR China.
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Liu L, He Q, Dong S, Wang M, Song Y, Diao H, Yuan D. Building synergistic multiple active sites in branch-leaf nanostructured carbon nanofiber derived from MOF/COF hybrid for flexible wearable Zn-air battery. J Colloid Interface Sci 2024; 666:35-46. [PMID: 38583208 DOI: 10.1016/j.jcis.2024.04.024] [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: 01/15/2024] [Revised: 03/18/2024] [Accepted: 04/02/2024] [Indexed: 04/09/2024]
Abstract
Covalent organic frameworks (COFs) and metal-organic frameworks (MOFs) have attracted growing attention in electrochemical energy storage and conversion systems (e.g., Zn-air batteries, ZABs) owing to their structural tunability, ordered porosity and high specific surface area. In this work, for the first time, the three-dimensional (3D) highly open catalyst (CNFs/CoZn-MOF@COF) possessing hierarchical porous structure and high-density active sites of uniform cobalt (Co) nanoparticles and metal-Nx (M-Nx, M = Co and Zn) is demonstrated, which is fabricated using electrospinning technique in combination with MOF/COF hybridization strategy and direct pyrolysis. Benefiting from the well-designed branch-leaf nanostructures, plentiful and uniform active sites on the MOF/COF-derived carbon frameworks, as well as the synergistic effect of multiple active sites, CNFs/CoZn-MOF@COF catalyst achieves superior electrocatalytic activity and stability towards both oxygen reduction reaction (ORR) and oxygen evolution reaction (OER) with a small potential gap (ΔE = 0.75 V). In situ Raman spectroscopy and X-ray photoelectron spectroscopy results indicate that the CoOOH intermediates are the main active species during OER/ORR. Significantly, both aqueous and all-solid-state rechargeable ZABs assembled with CNFs/CoZn-MOF@COF as the air cathode show high open-circuit potential, outstanding peak power density, large capacity and long cycle life. More impressively, the obtained all-solid-state ZAB also displays superb mechanical flexibility and device stability under different, showcasing great application deformations potential in portable and wearable electronics. This work provides a new insight into the design and exploitation of bifunctional catalysts from MOF/COF hybrid materials for energy storage and conversion devices.
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Affiliation(s)
- Longlong Liu
- Industrial Research Institute of Nonwovens & Technical Textiles, Shandong Engineering Research Center for Specialty Nonwoven Materials, College of Textiles & Clothing, Qingdao University, Qingdao 266071, Shandong, China
| | - Quanfeng He
- College of Chemistry and Chemical Engineering, Innovation Laboratory for Sciences and Technologies of Energy Materials of Fujian Province (IKKEM), Xiamen University, Xiamen 361005, Fujian, China
| | - Senjie Dong
- Industrial Research Institute of Nonwovens & Technical Textiles, Shandong Engineering Research Center for Specialty Nonwoven Materials, College of Textiles & Clothing, Qingdao University, Qingdao 266071, Shandong, China
| | - Minghui Wang
- Industrial Research Institute of Nonwovens & Technical Textiles, Shandong Engineering Research Center for Specialty Nonwoven Materials, College of Textiles & Clothing, Qingdao University, Qingdao 266071, Shandong, China
| | - Yuqian Song
- Industrial Research Institute of Nonwovens & Technical Textiles, Shandong Engineering Research Center for Specialty Nonwoven Materials, College of Textiles & Clothing, Qingdao University, Qingdao 266071, Shandong, China
| | - Han Diao
- Industrial Research Institute of Nonwovens & Technical Textiles, Shandong Engineering Research Center for Specialty Nonwoven Materials, College of Textiles & Clothing, Qingdao University, Qingdao 266071, Shandong, China
| | - Ding Yuan
- Industrial Research Institute of Nonwovens & Technical Textiles, Shandong Engineering Research Center for Specialty Nonwoven Materials, College of Textiles & Clothing, Qingdao University, Qingdao 266071, Shandong, China.
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Chi HM, Yang KZ, Guo PP, Xu Y, Xu C, Su YZ, Liu X, Liu JG. Enhancing oxygen reduction activity of dinuclear copper complexes loaded on an N-doped carbon support via a low-temperature pyrolysis strategy. Dalton Trans 2024; 53:11464-11469. [PMID: 38910547 DOI: 10.1039/d4dt01044b] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 06/25/2024]
Abstract
Bioinspired by the active sites of multicopper oxidases (MCOs), bi/multinuclear copper complexes have attracted great attention in promoting catalytic activity for the oxygen reduction reaction (ORR). Herein, we report the preparation of a Cu-N-C electrocatalyst Cu-BPOZ@CNB-400 for efficient ORR, which was obtained by low temperature pyrolysis of a dinuclear 2,5-bis(2-pyridyl)-1,3,4-oxadiazole (BPOZ) copper complex loaded on a N-doped carbon support at 400 °C. Cu-BPOZ@CNB-400 exhibited a half-wave potential (E1/2) of 0.86 V vs. RHE for the ORR in 0.1 M KOH solution, which was significantly higher than that of the Cu-BPOZ@CNB-800 (E1/2 = 0.83 V) catalyst treated under high temperature (at 800 °C) and the control catalyst Cu-Phen@CNB-400 (E1/2 = 0.82 V) derived from low-temperature-treatment (at 400 °C) of a mononuclear phenanthroline-coordinated-Cu complex loaded on a N-doped carbon support. When Cu-BPOZ@CNB-400 was applied as the cathode catalyst in zinc-air batteries a maximum power density (Pmax) of 127 mW cm-2 could be achieved, demonstrating comparable catalyst performance to the commercial 20 wt% Pt/C (Pmax = 122 mW cm-2) and the control Cu-Phen@CNB-400 catalyst (Pmax = 105 mW cm-2) under similar experimental conditions. Low-temperature pyrolysis of dinuclear copper complexes on a carbon support improved the charge transfer efficiency, inhibited metal aggregation, and could produce highly dispersed Cu-N-C catalysts with dinuclear copper sites for promoting the 4e--reduction selectivity of the ORR. It thus provides a cost-effective approach for the controllable fabrication of efficient ORR catalysts to be applied for energy conversion devices.
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Affiliation(s)
- Hua-Min Chi
- Key Laboratory for Advanced Materials, School of Chemistry & Molecular Engineering, East China University of Science and Technology, Shanghai 200237, P. R. China.
| | - Kun-Zu Yang
- Key Laboratory for Advanced Materials, School of Chemistry & Molecular Engineering, East China University of Science and Technology, Shanghai 200237, P. R. China.
| | - Peng-Peng Guo
- Key Laboratory for Advanced Materials, School of Chemistry & Molecular Engineering, East China University of Science and Technology, Shanghai 200237, P. R. China.
| | - Ying Xu
- Key Laboratory for Advanced Materials, School of Chemistry & Molecular Engineering, East China University of Science and Technology, Shanghai 200237, P. R. China.
| | - Chao Xu
- Key Laboratory for Advanced Materials, School of Chemistry & Molecular Engineering, East China University of Science and Technology, Shanghai 200237, P. R. China.
| | - Yong-Zhi Su
- Key Laboratory for Advanced Materials, School of Chemistry & Molecular Engineering, East China University of Science and Technology, Shanghai 200237, P. R. China.
| | - Xin Liu
- Key Laboratory for Advanced Materials, School of Chemistry & Molecular Engineering, East China University of Science and Technology, Shanghai 200237, P. R. China.
| | - Jin-Gang Liu
- Key Laboratory for Advanced Materials, School of Chemistry & Molecular Engineering, East China University of Science and Technology, Shanghai 200237, P. R. China.
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Wang L, Huang J, Hu X, Huang Z, Gao M, Yao D, Taylor Isimjan T, Yang X. Synergistic vacancy engineering of Co/MnO@NC catalyst for superior oxygen reduction reaction in liquid/solid zinc-air batteries. J Colloid Interface Sci 2024; 660:989-996. [PMID: 38290325 DOI: 10.1016/j.jcis.2024.01.143] [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: 12/21/2023] [Revised: 01/12/2024] [Accepted: 01/21/2024] [Indexed: 02/01/2024]
Abstract
The pursuit of efficient and economically viable catalysts for liquid/solid-state zinc-air batteries (ZABs) is of paramount importance yet presents formidable challenge. Herein, we synthesized a vacancy-rich cobalt/manganese oxide catalyst (Co/MnO@NC) stabilized on a nitrogen-doped mesoporous carbon (NC) nanosphere matrix by leveraging hydrothermal and high-temperature pyrolysis strategy. The optimized Co/MnO@NC demonstrates fast reaction kinetics and large limiting current densities comparable to commercial Pt/C in alkaline electrolyte for oxygen reduction reaction (ORR). Moreover, the Co/MnO@NC serves as an incredible cathode material for both liquid and flexible solid-state ZABs, delivering impressive peak power densities of 217.7 and 63.3 mW cm-2 and robust long-term stability (459 h), outperforming the state-of-the-art Pt/C and majority of the currently reported catalysts. Research indicates that the superior performance of the Co/MnO@NC catalyst primarily stems from the synergy between the heightened electrical conductivity of metallic Co and the regulatory capacity of MnO on adsorbed oxygen intermediates. In addition, the abundance of vacancies regulates the electronic configuration, and superhydrophilicity facilitates efficient electrolyte diffusion, thereby effectively ensuring optimal contact between the active site and reactants. Besides, the coexisting NC layer avoids the shedding of active sites, resulting in high stability. This work provides a viable approach for designing and advancing high-performance liquid/solid-state ZABs, highlighting the great potential of energy storage technology.
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Affiliation(s)
- Lixia Wang
- Guangxi Key Laboratory of Low Carbon Energy Materials, School of Chemistry and Pharmaceutical Sciences, Guangxi Normal University, Guilin 541004, China
| | - Jia Huang
- Guangxi Key Laboratory of Low Carbon Energy Materials, School of Chemistry and Pharmaceutical Sciences, Guangxi Normal University, Guilin 541004, China
| | - Xinran Hu
- Guangxi Key Laboratory of Low Carbon Energy Materials, School of Chemistry and Pharmaceutical Sciences, Guangxi Normal University, Guilin 541004, China
| | - Zhiyang Huang
- Guangxi Key Laboratory of Low Carbon Energy Materials, School of Chemistry and Pharmaceutical Sciences, Guangxi Normal University, Guilin 541004, China
| | - Mingcheng Gao
- Guangxi Key Laboratory of Low Carbon Energy Materials, School of Chemistry and Pharmaceutical Sciences, Guangxi Normal University, Guilin 541004, China
| | - Di Yao
- Guangxi Key Laboratory of Low Carbon Energy Materials, School of Chemistry and Pharmaceutical Sciences, Guangxi Normal University, Guilin 541004, China.
| | - Tayirjan Taylor Isimjan
- Saudi Arabia Basic Industries Corporation (SABIC) at King Abdullah University of Science and Technology (KAUST), Thuwal 23955-6900, Saudi Arabia
| | - Xiulin Yang
- Guangxi Key Laboratory of Low Carbon Energy Materials, School of Chemistry and Pharmaceutical Sciences, Guangxi Normal University, Guilin 541004, China.
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Wang M, Chen Z, Song Y, Hu Z, Song H, Dong S, Yuan D. Architecting N-doped Carbon Nanotube-Rich Carbon Nanofibers with Biomimetic Vine-Leaf-Whisker Structure as Robust Bifunctional Electrocatalysts for Rechargeable Zn-Air Batteries. Inorg Chem 2024; 63:4373-4384. [PMID: 38376825 DOI: 10.1021/acs.inorgchem.3c04643] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/21/2024]
Abstract
Efficient and durable bifunctional catalysts toward oxygen reduction reaction (ORR) and oxygen evolution reaction (OER) are urgently desirable but challenging for rechargeable Zn-air batteries (ZABs), especially flexible wearable ZABs. Inspired by the vine-leaf-whisker structure in nature, we proposed a three-dimensional (3D) hierarchical bifunctional catalyst (denoted as Co-Fe-Zn@N-CNT/CNF) consisting of N-doped carbon nanotubes embedded with abundant CoFe alloy nanoparticles, leaf-shaped N-doped carbon nanoflakes, and porous carbon fibers for rechargeable ZABs. The special biomimetic structure provides a large specific surface area, allowing for high exposure of the active site and ensuring fast mass transport/charge transfer. The close combination of CoFe bimetallic alloys and N-doped carbon nanotubes delivers high electrocatalytic activity, while the coexistence of various active sites such as metal nanoparticles (NPs), metal-Nx, doped N species, and their synergistic interactions endows the catalysts with more active sites. As such, the Co-Fe-Zn@N-CNT/CNF catalyst achieves superior bifunctional catalytic activities for the ORR (a half-wave potential of 0.84 V) and the OER (an overpotential of 326 mV at 10 mA cm-2) in alkaline media, comparable to commercial Pt/C and RuO2. Remarkably, both aqueous and solid-state ZABs assembled with Co-Fe-Zn@N-CNT/CNF catalysts as air electrodes demonstrate excellent charging/discharging performance, high peak power density, and robust long-term cycling stability. More interestingly, the flexible ZAB performs well even under bending conditions, displaying satisfactory device stability and mechanical flexibility. This study presents a new collective morphological-composition-structural engineering strategy for exploiting the efficient bifunctional oxygen electrocatalysts, which is of great significance for high-performance rechargeable ZABs and wearable energy storage devices.
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Affiliation(s)
- Minghui Wang
- Industrial Research Institute of Nonwovens & Technical Textiles, Shandong Engineering Research Center for Specialty Nonwoven Materials, College of Textiles & Clothing, Qingdao University, Qingdao, Shandong 266071, PR China
| | - Zihao Chen
- Industrial Research Institute of Nonwovens & Technical Textiles, Shandong Engineering Research Center for Specialty Nonwoven Materials, College of Textiles & Clothing, Qingdao University, Qingdao, Shandong 266071, PR China
| | - Yuqian Song
- Industrial Research Institute of Nonwovens & Technical Textiles, Shandong Engineering Research Center for Specialty Nonwoven Materials, College of Textiles & Clothing, Qingdao University, Qingdao, Shandong 266071, PR China
| | - Zunpeng Hu
- Industrial Research Institute of Nonwovens & Technical Textiles, Shandong Engineering Research Center for Specialty Nonwoven Materials, College of Textiles & Clothing, Qingdao University, Qingdao, Shandong 266071, PR China
| | - Hanzhe Song
- Industrial Research Institute of Nonwovens & Technical Textiles, Shandong Engineering Research Center for Specialty Nonwoven Materials, College of Textiles & Clothing, Qingdao University, Qingdao, Shandong 266071, PR China
| | - Senjie Dong
- Industrial Research Institute of Nonwovens & Technical Textiles, Shandong Engineering Research Center for Specialty Nonwoven Materials, College of Textiles & Clothing, Qingdao University, Qingdao, Shandong 266071, PR China
| | - Ding Yuan
- Industrial Research Institute of Nonwovens & Technical Textiles, Shandong Engineering Research Center for Specialty Nonwoven Materials, College of Textiles & Clothing, Qingdao University, Qingdao, Shandong 266071, PR China
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Li M, Wang J, Cong X, Sun Y, Liu Q, Miao Z, Li Z, Wang L. Confined Ni nanoparticles in N-doped carbon nanotubes for excellent pH-universal industrial-level electrocatalytic CO 2 reduction and Zn-CO 2 battery. J Colloid Interface Sci 2024; 657:738-747. [PMID: 38071822 DOI: 10.1016/j.jcis.2023.11.174] [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: 09/19/2023] [Revised: 11/14/2023] [Accepted: 11/27/2023] [Indexed: 01/02/2024]
Abstract
Electrocatalytic reduction of CO2 (ECR) offers a promising approach to curbed carbon emissions and complete carbon cycles. However, the inevitable creation of carbonates and limited CO2 utilization efficiency in neutral or alkaline electrolytes result in low energy efficiency, carbon losses and its widespread commercial utilization. The advancement of CO2 reduction under acidic conditions offers a promising approach for their commercial utilization, but the inhibition of hydrogen evolution reaction and the corrosion of catalysts are still challenging. Herein, Ni nanoparticles (NPs) wrapped in N-doped carbon nanotubes (NixNC-a) are successfully prepared by a facile mixed-heating and freeze-drying method. Ni100NC-a achieves a high Faraday efficiency (FE) of near 100 % for CO under pH-universal conditions, coupled with a promising current density of CO (>100 mA cm-2). Especially in acidic conditions, Ni100NC-a exhibits an exceptional ECR performance with the high FECO of 97.4 % at -1.44 V and the turnover frequency (TOF) of 11 k h-1 at -1.74 V with a current density of 288.24 mA cm-2. This excellent performance is attributed to the synergistic effect of Ni NPs and N-doped carbon shells, which protects Ni NPs from etching, promotes CO2 adsorption and regulates local pH. Moreover, Ni100NC-a could drive the reversible Zn-CO2 battery with a high power-density of 4.68 mW cm-2 and a superior stability (98 h). This study presents a promising candidate for efficient pH-universal CO2 electroreduction and Zn-CO2 battery.
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Affiliation(s)
- Meiyin Li
- School of Chemistry and Chemical Engineering, Shandong University of Technology, Zibo, Shandong 255049, China
| | - Jigang Wang
- School of Chemistry and Chemical Engineering, Shandong University of Technology, Zibo, Shandong 255049, China.
| | - Xuzi Cong
- School of Chemistry and Chemical Engineering, Shandong University of Technology, Zibo, Shandong 255049, China
| | - Yinggang Sun
- School of Chemistry and Chemical Engineering, Shandong University of Technology, Zibo, Shandong 255049, China
| | - Qiang Liu
- School of Chemistry and Chemical Engineering, Shandong University of Technology, Zibo, Shandong 255049, China
| | - Zhichao Miao
- School of Chemistry and Chemical Engineering, Shandong University of Technology, Zibo, Shandong 255049, China
| | - Zhongfang Li
- School of Chemistry and Chemical Engineering, Shandong University of Technology, Zibo, Shandong 255049, China
| | - Likai Wang
- School of Chemistry and Chemical Engineering, Shandong University of Technology, Zibo, Shandong 255049, China; Qingdao Institute of Bioenergy and Bioprocess Technology, Chinese Academy of Sciences, Qingdao, Shandong 266101, China.
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7
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Liu X, Yin H, Zhang S, Huang M, Taylor Isimjan T, Yang X, Cai D. Revealing the effect of crystallinity and oxygen vacancies of Fe-Co phosphate on oxygen evolution for high-current water splitting. J Colloid Interface Sci 2024; 653:1379-1387. [PMID: 37801848 DOI: 10.1016/j.jcis.2023.09.185] [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: 07/31/2023] [Revised: 09/27/2023] [Accepted: 09/29/2023] [Indexed: 10/08/2023]
Abstract
Strategically tuning the composition and structure of transition metal phosphates (TMPs) holds immense promise in the development of efficient oxygen evolution reaction (OER) electrocatalysts. However, the effect of crystalline phase transformation for TMPs on the catalytic OER activity remains relatively uncharted. In this study, we have deftly orchestrated the reaction process of anion-etched precursor to induce the amorphization process of FeCo-POx from crystalline to amorphous states. The as-obtained amorphous FeCo-POx (A-FeCo-POx) exhibited an optimized OER performance with a low overpotential of 270 mV at a current density of 10 mA cm-2, which could be attributed to the flexibility of its amorphous structure and the synergistic effect of oxygen vacancies. Moreover, when incorporated into an overall water splitting (OWS) device configured as A-FeCo-POx(+)||Pt/C(-), it displayed long-term solid stability, sustaining operation for 300 h at a current density of 200 mA cm-2. This work not only provides valuable insights into understanding the transformation from crystalline to amorphous states, but also establishes the groundwork for the practical utilization of amorphous nanomaterials in the field of water splitting.
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Affiliation(s)
- Xinqiang Liu
- Guangxi Key Laboratory of Low Carbon Energy Materials, School of Chemistry and Pharmaceutical Sciences, Guangxi Normal University, Guilin 541004, China
| | - Haoran Yin
- Guangxi Key Laboratory of Low Carbon Energy Materials, School of Chemistry and Pharmaceutical Sciences, Guangxi Normal University, Guilin 541004, China
| | - Shifan Zhang
- Guangxi Key Laboratory of Low Carbon Energy Materials, School of Chemistry and Pharmaceutical Sciences, Guangxi Normal University, Guilin 541004, China
| | - Menghan Huang
- Guangxi Key Laboratory of Low Carbon Energy Materials, School of Chemistry and Pharmaceutical Sciences, Guangxi Normal University, Guilin 541004, China
| | - Tayirjan Taylor Isimjan
- Saudi Arabia Basic Industries Corporation (SABIC), King Abdullah University of Science and Technology (KAUST), Thuwal 23955-6900, Saudi Arabia
| | - Xiulin Yang
- Guangxi Key Laboratory of Low Carbon Energy Materials, School of Chemistry and Pharmaceutical Sciences, Guangxi Normal University, Guilin 541004, China.
| | - Dandan Cai
- Guangxi Key Laboratory of Low Carbon Energy Materials, School of Chemistry and Pharmaceutical Sciences, Guangxi Normal University, Guilin 541004, China; School of Chemical Engineering and Technology, Sun Yat-sen University, Zhuhai 519082, China.
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8
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Wang L, Xu M, Li H, Huang Z, Wang L, Taylor Isimjan T, Yang X. Mn-Doped Zn Metal-Organic Framework-Derived Porous N-Doped Carbon Composite as a High-Performance Nonprecious Electrocatalyst for Oxygen Reduction and Aqueous/Flexible Zinc-Air Batteries. Inorg Chem 2023; 62:13284-13292. [PMID: 37542458 DOI: 10.1021/acs.inorgchem.3c01536] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 08/07/2023]
Abstract
Developing low-cost, efficient, and stable oxygen reduction reaction (ORR) electrocatalysts is crucial for the commercialization of energy conversion devices such as metal-air batteries. In this study, we report a Mn-doped Zn metal-organic framework-derived porous N-doped carbon composite (30-ZnMn-NC) as a high-performance ORR catalyst. 30-ZnMn-NC exhibits excellent electrocatalytic activity, demonstrating a kinetic current density of 9.58 mA cm-2 (0.8 V) and a half-wave potential of 0.83 V, surpassing the benchmark Pt/C and most of the recently reported non-noble metal-based catalysts. Moreover, the assembled zinc-air battery with 30-ZnMn-NC demonstrates high peak power densities of 207 and 66.3 mW cm-2 in liquid and flexible batteries, respectively, highlighting its potential for practical applications. The excellent electrocatalytic activity of 30-ZnMn-NC is attributed to its unique porous structure, the strong electronic interaction between metal Zn/Mn and adjacent N-doped carbon, as well as the bimetallic Mn/Zn-N active sites, which synergistically promote faster reaction kinetics. This work offers a controllable design strategy for efficient electrocatalysts with porous structures and bimetallic active sites, which can significantly enhance the performance of energy conversion devices.
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Affiliation(s)
- Lixia Wang
- Guangxi Key Laboratory of Low Carbon Energy Materials School of Chemistry and Pharmaceutical Sciences, Guangxi Normal University, Guilin 541004, China
| | - Meijiao Xu
- Guangxi Key Laboratory of Low Carbon Energy Materials School of Chemistry and Pharmaceutical Sciences, Guangxi Normal University, Guilin 541004, China
| | - Huatong Li
- Guangxi Key Laboratory of Low Carbon Energy Materials School of Chemistry and Pharmaceutical Sciences, Guangxi Normal University, Guilin 541004, China
| | - Zhiyang Huang
- Guangxi Key Laboratory of Low Carbon Energy Materials School of Chemistry and Pharmaceutical Sciences, Guangxi Normal University, Guilin 541004, China
| | - Lei Wang
- Department of Food and Environmental Engineering, Chuzhou Polytechnic, Chuzhou 239000, China
| | - Tayirjan Taylor Isimjan
- Saudi Arabia Basic Industries Corporation (SABIC) at King Abdullah University of Science and Technology (KAUST), Thuwal 23955-6900, Saudi Arabia
| | - Xiulin Yang
- Guangxi Key Laboratory of Low Carbon Energy Materials School of Chemistry and Pharmaceutical Sciences, Guangxi Normal University, Guilin 541004, China
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Peng X, Zhao X, Hu Y, Guo L, Liu Y, Yu X, Yang X, Zhang X, Lu Z, Li L. Designing a Hierarchical Porous Carbon with Optimized Nitrogen Doping for Efficient Oxygen Reduction Reaction. Chempluschem 2023; 88:e202300238. [PMID: 37310283 DOI: 10.1002/cplu.202300238] [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: 05/19/2023] [Revised: 06/09/2023] [Accepted: 06/13/2023] [Indexed: 06/14/2023]
Abstract
Nitrogen-doped carbon is considered one of the most promising oxygen reduction catalysts due to its low cost and high activity, however, it still falls short of Pt/C. In this study, we report a strategy for the preparation of highly reactive N-doped hierarchical porous carbon by primary pyrolysis using zinc acetate as a stand-alone zinc source and amino-rich reactants as carbon and nitrogen sources to introduce Zn-Nx structures into mesoporous structures generated by the hard template method using the strong coordination of zinc and amino groups. Benefited from the simultaneous optimization of the hierarchical porous structure and nitrogen-doping, the half-wave potential of Zn(OAc)2 -DCD/HPC is as high as 0.909 V vs. RHE, much better than that of commercial Pt/C catalysts (0.872 V vs. RHE). In addition, zinc-air batteries assembled with Zn(OAc)2 -DCD/HPC (Pmax =198 mW cm-2 ) as the cathode exhibit higher peak power density compared to Pt/C (Pmax =168 mW cm-2 ). This strategy might open up new opportunities for designing and developing highly active metal-free catalysts.
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Affiliation(s)
- Xingkai Peng
- School of Materials Science and Engineering, Hebei University of Technology, Tianjin, 300131, China
| | - Xiaowei Zhao
- School of Materials Science and Engineering, Hebei University of Technology, Tianjin, 300131, China
| | - Yuekun Hu
- School of Materials Science and Engineering, Hebei University of Technology, Tianjin, 300131, China
| | - Lingli Guo
- School of Materials Science and Engineering, Hebei University of Technology, Tianjin, 300131, China
| | - Yan Liu
- School of Materials Science and Engineering, Hebei University of Technology, Tianjin, 300131, China
| | - Xiaofei Yu
- School of Materials Science and Engineering, Hebei University of Technology, Tianjin, 300131, China
| | - Xiaojing Yang
- School of Materials Science and Engineering, Hebei University of Technology, Tianjin, 300131, China
| | - Xinghua Zhang
- School of Materials Science and Engineering, Hebei University of Technology, Tianjin, 300131, China
| | - Zunming Lu
- School of Materials Science and Engineering, Hebei University of Technology, Tianjin, 300131, China
| | - Lanlan Li
- School of Materials Science and Engineering, Hebei University of Technology, Tianjin, 300131, China
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