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Ye Y, Xu J, Li X, Jian Y, Xie F, Chen J, Jin Y, Yu X, Lee MH, Wang N, Sun S, Meng H. Orbital Occupancy Modulation to Optimize Intermediate Absorption for Efficient Electrocatalysts in Water Electrolysis and Zinc-Ethanol-Air Battery. ADVANCED MATERIALS (DEERFIELD BEACH, FLA.) 2024:e2312618. [PMID: 38439598 DOI: 10.1002/adma.202312618] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 11/23/2023] [Revised: 02/04/2024] [Indexed: 03/06/2024]
Abstract
Spin engineering is a promising way to modulate the interaction between the metal d-orbital and the intermediates and thus enhance the catalytic kinetics. Herein, an innovative strategy is reported to modulate the spin state of Co by regulating its coordinating environment. o-c-CoSe2 -Ni is prepared as pre-catalyst, then in situ electrochemical impedance spectroscopy (EIS) and in situ Raman spectroscopy are employed to prove phase transition, and CoOOH/Co3 O4 is formed on the surface as active sites. In hybrid water electrolysis, the voltage has a negative shift, and in zinc-ethanol-air battery, the charging voltage is lowered and the cycling stability is greatly increased. Coordinated atom substitution and crystalline symmetry change are combined to regulate the absorption ability of reaction intermediates with balanced optimal adsorption. Coordinated atom substitution weakens the adsorption while the crystalline symmetry change strengthens the adsorption. Importantly, the tetrahedral sites are introduced by Ni doping which enables the co-existence of four-coordinated sites and six-coordination sites in o-c-CoSe2 -Ni. The dz2 + dx2 -y2 orbital occupancy decreases after the atomic substitution, while increases after replacing the CoSe6 -Oh field with CoSe6 -Oh /CoSe4 -Td . This work explores a new direction for the preparation of efficient catalysts for water electrolysis and innovative zinc-ethanol-air battery.
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Affiliation(s)
- Yanting Ye
- Siyuan Laboratory, Guangzhou Key Laboratory of Vacuum Coating Technologies and New Energy Materials, Guangdong Provincial Engineering Technology Research Center of Vacuum Coating Technologies and New Energy Materials, Guangdong Provincial Key Laboratory of Nanophotonic Manipulation, Instrumental Analysis & Research Center, Department of Physics, Jinan University, Guangzhou, Guangdong, 510632, China
| | - Jinchang Xu
- Siyuan Laboratory, Guangzhou Key Laboratory of Vacuum Coating Technologies and New Energy Materials, Guangdong Provincial Engineering Technology Research Center of Vacuum Coating Technologies and New Energy Materials, Guangdong Provincial Key Laboratory of Nanophotonic Manipulation, Instrumental Analysis & Research Center, Department of Physics, Jinan University, Guangzhou, Guangdong, 510632, China
| | - Xiulan Li
- Siyuan Laboratory, Guangzhou Key Laboratory of Vacuum Coating Technologies and New Energy Materials, Guangdong Provincial Engineering Technology Research Center of Vacuum Coating Technologies and New Energy Materials, Guangdong Provincial Key Laboratory of Nanophotonic Manipulation, Instrumental Analysis & Research Center, Department of Physics, Jinan University, Guangzhou, Guangdong, 510632, China
| | - Yongqi Jian
- Siyuan Laboratory, Guangzhou Key Laboratory of Vacuum Coating Technologies and New Energy Materials, Guangdong Provincial Engineering Technology Research Center of Vacuum Coating Technologies and New Energy Materials, Guangdong Provincial Key Laboratory of Nanophotonic Manipulation, Instrumental Analysis & Research Center, Department of Physics, Jinan University, Guangzhou, Guangdong, 510632, China
| | - Fangyan Xie
- Instrumental Analysis & Research Center, Sun Yat-sen University, Guangzhou, Guangdong, 510275, China
| | - Jian Chen
- Instrumental Analysis & Research Center, Sun Yat-sen University, Guangzhou, Guangdong, 510275, China
| | - Yanshuo Jin
- Siyuan Laboratory, Guangzhou Key Laboratory of Vacuum Coating Technologies and New Energy Materials, Guangdong Provincial Engineering Technology Research Center of Vacuum Coating Technologies and New Energy Materials, Guangdong Provincial Key Laboratory of Nanophotonic Manipulation, Instrumental Analysis & Research Center, Department of Physics, Jinan University, Guangzhou, Guangdong, 510632, China
| | - Xiang Yu
- Siyuan Laboratory, Guangzhou Key Laboratory of Vacuum Coating Technologies and New Energy Materials, Guangdong Provincial Engineering Technology Research Center of Vacuum Coating Technologies and New Energy Materials, Guangdong Provincial Key Laboratory of Nanophotonic Manipulation, Instrumental Analysis & Research Center, Department of Physics, Jinan University, Guangzhou, Guangdong, 510632, China
| | - Ming-Hsien Lee
- Department of Physics, Tamkang University, New Taipei, 25137, Taiwan
| | - Nan Wang
- Siyuan Laboratory, Guangzhou Key Laboratory of Vacuum Coating Technologies and New Energy Materials, Guangdong Provincial Engineering Technology Research Center of Vacuum Coating Technologies and New Energy Materials, Guangdong Provincial Key Laboratory of Nanophotonic Manipulation, Instrumental Analysis & Research Center, Department of Physics, Jinan University, Guangzhou, Guangdong, 510632, China
| | - Shuhui Sun
- Institut National de la Recherche Scientifique (INRS), Center Énergie Matériaux Télécommunications, Varennes, Québec, J3X 1P7, Canada
| | - Hui Meng
- Siyuan Laboratory, Guangzhou Key Laboratory of Vacuum Coating Technologies and New Energy Materials, Guangdong Provincial Engineering Technology Research Center of Vacuum Coating Technologies and New Energy Materials, Guangdong Provincial Key Laboratory of Nanophotonic Manipulation, Instrumental Analysis & Research Center, Department of Physics, Jinan University, Guangzhou, Guangdong, 510632, China
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Bi L, Tian Q, Geng L, Zhou Y, Zheng B, Gao JS, He Y. NiCo-compounds inside and outside N-doped carbon nanotubes to construct a double-enhanced hierarchical structure for high energy density supercapacitors. Dalton Trans 2024; 53:2131-2142. [PMID: 38186363 DOI: 10.1039/d3dt03049k] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/09/2024]
Abstract
Attaining a high energy density that aligns with practical application requirements is a crucial indicator in the advancement of supercapacitors. In this paper, a hybrid hierarchical electrode structure of N-doped carbon nanotube (NCNT) spheres encapsulated with NiCo-Se nanoparticles (NPs) and coated with nickel-cobalt layered double hydroxide (NiCo-LDH) multilayer nanosheets was successfully synthesized on a nickel foam (NF) substrate. The self-supporting strategy enables nickel-cobalt Prussian blue analogues (Ni-Co PBAs) to be directly attached to the NF surface, which results in fluffy NCNTs with a high length-diameter ratio and considerable yield and greatly enhances the conductivity of the electrode material. The synergistic interaction between the dual transition metal compounds inside and outside the NCNTs enables the hybrid electrode material to achieve an impressive specific capacity of 1899 F g-1 (211.0 mA h g-1) at 1 A g-1. The asymmetric supercapacitor (ASC) exhibits an excellent energy density of 57.6 W h kg-1 at a power density of 798 W kg-1. This study not only provides an attractive strategy for obtaining CNTs with excellent properties from Ni-Co PBA and synthesizing hybrid electrodes with efficient synergistic effects, but also achieves a high energy density that aligns with the practical application demands of supercapacitors.
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Affiliation(s)
- Lansen Bi
- College of Electromechanical Engineering, Qingdao University of Science and Technology, Shandong Engineering Laboratory for Preparation and Application of High-Performance Carbon Materials, Qingdao 266061, China.
| | - Qingbin Tian
- College of Electromechanical Engineering, Qingdao University of Science and Technology, Shandong Engineering Laboratory for Preparation and Application of High-Performance Carbon Materials, Qingdao 266061, China.
| | - Lei Geng
- ShangDong Dazhan Nano Materials Co., Ltd, Binzhou 256220, China
| | - Yang Zhou
- College of Electromechanical Engineering, Qingdao University of Science and Technology, Shandong Engineering Laboratory for Preparation and Application of High-Performance Carbon Materials, Qingdao 266061, China.
| | - Benyu Zheng
- College of Electromechanical Engineering, Qingdao University of Science and Technology, Shandong Engineering Laboratory for Preparation and Application of High-Performance Carbon Materials, Qingdao 266061, China.
| | - Jiang-Shan Gao
- College of Electromechanical Engineering, Qingdao University of Science and Technology, Shandong Engineering Laboratory for Preparation and Application of High-Performance Carbon Materials, Qingdao 266061, China.
| | - Yan He
- College of Electromechanical Engineering, Qingdao University of Science and Technology, Shandong Engineering Laboratory for Preparation and Application of High-Performance Carbon Materials, Qingdao 266061, China.
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Wu X, Qiu Y, Yang B, Li J, Cai W, Qin Y, Kong Y, Yin ZZ. Fabrication of CoSe 2/CoP with rich selenium- and phosphorus-vacancies and heterogeneous interfaces for asymmetric supercapacitors. J Colloid Interface Sci 2023; 651:128-137. [PMID: 37542888 DOI: 10.1016/j.jcis.2023.07.191] [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: 05/09/2023] [Revised: 07/17/2023] [Accepted: 07/29/2023] [Indexed: 08/07/2023]
Abstract
CoSe2/CoP with rich Se- and P-vacancies and heterogeneous interfaces (v-CoSe2/CoP) is grown on the surface of nickel foam via a two-step strategy: electrodeposition and NaBH4 reduction, which can be used as the cathode material in asymmetric supercapacitors. The SEM characterization reveals the honeycomb-like structure of the v-CoSe2/CoP, and the results of EPR, XPS and HRTEM reveal the existence of anionic vacancies and heterogeneous interfaces in the v-CoSe2/CoP. The as-fabricated v-CoSe2/CoP exhibits high specific capacitance (3206 mF cm-2 at 1.0 mA cm-2) and cyclic stability (91 % capacitance retention after 2000 cycles). An asymmetric supercapacitor is assembled by using the v-CoSe2/CoP and activated carbon (AC) as cathode and anode materials, respectively, which displays a high energy density of 40.6 Wh kg-1 at the power density of 211.5 W kg-1. The outstanding electrochemical performances of the v-CoSe2/CoP might be ascribed to the synergistic effects of Se- and P-vacancies and the heterogeneous interfaces in the v-CoSe2/CoP.
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Affiliation(s)
- Xingyue Wu
- Jiangsu Key Laboratory of Advanced Catalytic Materials and Technology, School of Petrochemical Engineering, Changzhou University, Changzhou 213164, China
| | - Yiping Qiu
- Jiangsu Key Laboratory of Advanced Catalytic Materials and Technology, School of Petrochemical Engineering, Changzhou University, Changzhou 213164, China
| | - Baozhu Yang
- Jiangsu Key Laboratory of Advanced Catalytic Materials and Technology, School of Petrochemical Engineering, Changzhou University, Changzhou 213164, China
| | - Junyao Li
- Jiangsu Key Laboratory of Advanced Catalytic Materials and Technology, School of Petrochemical Engineering, Changzhou University, Changzhou 213164, China
| | - Wenrong Cai
- Jiangsu Key Laboratory of Advanced Catalytic Materials and Technology, School of Petrochemical Engineering, Changzhou University, Changzhou 213164, China
| | - Yong Qin
- Jiangsu Key Laboratory of Advanced Catalytic Materials and Technology, School of Petrochemical Engineering, Changzhou University, Changzhou 213164, China
| | - Yong Kong
- Jiangsu Key Laboratory of Advanced Catalytic Materials and Technology, School of Petrochemical Engineering, Changzhou University, Changzhou 213164, China.
| | - Zheng-Zhi Yin
- College of Biological, Chemical Sciences and Engineering, Jiaxing University, Jiaxing 314001, China.
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Shao S, Liu S, Xue C. Electrodeposition Synthesis of Coral-like MnCo Selenide Binder-Free Electrodes for Aqueous Asymmetric Supercapacitors. NANOMATERIALS (BASEL, SWITZERLAND) 2023; 13:2452. [PMID: 37686960 PMCID: PMC10489885 DOI: 10.3390/nano13172452] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 08/15/2023] [Revised: 08/27/2023] [Accepted: 08/28/2023] [Indexed: 09/10/2023]
Abstract
Bimetallic selenide compounds show great potential as supercapacitor electrode materials in energy storage and conversion applications. In this work, a coral-like MnCo selenide was grown on nickel foam using a facile electrodeposition method to prepare binder-free supercapacitor electrodes. The heating temperature was varied to tune the morphology and crystal phase of these electrodes. Excellent electrochemical performance was achieved due to the unique coral-like, dendritic- dispersed structure and a bimetallic synergistic effect, including high specific capacitance (509 C g-1 at 1 A g-1) and outstanding cycling stability (94.3% capacity retention after 5000 cycles). Furthermore, an asymmetric supercapacitor assembled with MnCo selenide as the anode and active carbon as the cathode achieved a high specific energy of 46.2 Wh kg-1 at 800 W kg-1. The work demonstrates that the prepared coral-like MnCo selenide is a highly promising energy storage material.
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Affiliation(s)
- Siqi Shao
- School of Materials Science and Engineering, Anhui University of Science and Technology, Huainan 232001, China; (S.S.); (C.X.)
| | - Song Liu
- School of Materials Science and Engineering, Anhui University of Science and Technology, Huainan 232001, China; (S.S.); (C.X.)
- Joint National-Local Engineering Research Centre for Safe and Precise Coal Mining, Anhui University of Science and Technology, Huainan 232001, China
| | - Changguo Xue
- School of Materials Science and Engineering, Anhui University of Science and Technology, Huainan 232001, China; (S.S.); (C.X.)
- CAS Key Laboratory of Mechanical Behavior and Design of Materials, University of Science and Technology of China, Hefei 230026, China
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Wu YF, Cao YC, Lee PY, Kubendhiran S, Chung RJ, Yougbaré S, Lin LY. Improving energy storage ability of ammonium-decorated cobalt fluoride using selenization as efficient active material of supercapacitor. Electrochim Acta 2022. [DOI: 10.1016/j.electacta.2022.141017] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/03/2022]
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Li Y, Zhang Q, Song Z, Shu K, Yang Z, Hu H, Lu Y, Tang X, Zhou X. Manipulating the morphology and the electronic structures of nickel-cobalt selenides@N-doped carbon for aqueous alkaline batteries. Colloids Surf A Physicochem Eng Asp 2022. [DOI: 10.1016/j.colsurfa.2022.130191] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/24/2022]
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