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Aboelazm E, Khe CS, Chong KF, Mohamed Saheed MS, Hegazy MBZ. Interconnected CoNi-Se Hollow Flakes through Reduced Graphene Oxide Sheets as a Cathode Material for Hybrid Supercapacitors. ACS APPLIED MATERIALS & INTERFACES 2024. [PMID: 38471069 DOI: 10.1021/acsami.3c17615] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 03/14/2024]
Abstract
Achieving a high energy density and long-cycle stability in energy storage devices demands competent electrochemical performance, often contingent on the innovative structural design of materials under investigation. This study explores the potential of transition metal selenide (TMSe), known for its remarkable activity, electronic conductivity, and stability in energy storage and conversion applications. The innovation lies in constructing hollow structures of binary metal selenide (CoNi-Se) at the surface of reduced graphene oxide (rGO) arranged in a three-dimensional (3D) morphology (CoNi-Se/rGO). The 3D interconnected rGO architecture works as a microcurrent collector, while porous CoNi-Se sheets originate the active redox centers. Electrochemical analysis of CoNi-Se/rGO based-electrode reveals a distinct faradic behavior, thereby resulting in a specific capacitance of 2957 F g-1 (1478.5 C g-1), surpassing the bare CoNi-Se with a value of 2149 F g-1 (1074.5 C g-1) at a current density of 1 A g-1. Both materials exhibit exceptional high-rate capabilities, retaining 83% of capacitance at 10 A g-1 compared to 1 A g-1. In a two-electrode coin cell system, the device achieves a high energy density of 73 Wh kg-1 at a power density of 1500 W kg-1, stating an impressive 90.4% capacitance retention even after enduring 20,000 cycles. This study underscores the CoNi-Se/rGO composite's promise as a superior electrode material for high-performance energy storage applications.
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Affiliation(s)
- Eslam Aboelazm
- Department of Fundamental and Applied Sciences, Universiti Teknologi PETRONAS, Seri Iskandar, Perak 32610, Malaysia
- Centre of Innovative Nanostructure and Nanodevices (COINN), Universiti Teknologi PETRONAS, Seri Iskandar, Perak 32610, Malaysia
| | - Cheng Seong Khe
- Department of Fundamental and Applied Sciences, Universiti Teknologi PETRONAS, Seri Iskandar, Perak 32610, Malaysia
- Centre of Innovative Nanostructure and Nanodevices (COINN), Universiti Teknologi PETRONAS, Seri Iskandar, Perak 32610, Malaysia
| | - Kwok Feng Chong
- Faculty of Industrial Sciences and Technology, Universiti Malaysia Pahang Al-Sultan Abdullah, Gambang, Kuantan 26300, Malaysia
| | - Mohamed Shuaib Mohamed Saheed
- Centre of Innovative Nanostructure and Nanodevices (COINN), Universiti Teknologi PETRONAS, Seri Iskandar, Perak 32610, Malaysia
- Department of Mechanical Engineering, Universiti Teknology PETRONAS, Seri Iskandar, Perak 32610,Malaysia
| | - Mohamed Barakat Zakaria Hegazy
- Department of Chemistry, Faculty of Science, Tanta University, Tanta 31527, Egypt
- Alexander von Humboldt (AvH) Foundation, 53173 Bonn, Germany
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2
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Hussain I, Lamiel C, Sahoo S, Javed MS, Ahmad M, Chen X, Gu S, Qin N, Assiri MA, Zhang K. Animal- and Human-Inspired Nanostructures as Supercapacitor Electrode Materials: A Review. NANO-MICRO LETTERS 2022; 14:199. [PMID: 36201062 PMCID: PMC9537411 DOI: 10.1007/s40820-022-00944-z] [Citation(s) in RCA: 8] [Impact Index Per Article: 4.0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 06/28/2022] [Accepted: 08/31/2022] [Indexed: 05/13/2023]
Abstract
Human civilization has been relentlessly inspired by the nurturing lessons; nature is teaching us. From birds to airplanes and bullet trains, nature gave us a lot of perspective in aiding the progress and development of countless industries, inventions, transportation, and many more. Not only that nature inspired us in such technological advances but also, nature stimulated the advancement of micro- and nanostructures. Nature-inspired nanoarchitectures have been considered a favorable structure in electrode materials for a wide range of applications. It offers various positive attributes, especially in energy storage applications, such as the formation of hierarchical two-dimensional and three-dimensional interconnected networked structures that benefit the electrodes in terms of high surface area, high porosity and rich surface textural features, and eventually, delivering high capacity and outstanding overall material stability. In this review, we comprehensively assessed and compiled the recent advances in various nature-inspired based on animal- and human-inspired nanostructures used for supercapacitors. This comprehensive review will help researchers to accommodate nature-inspired nanostructures in industrializing energy storage and many other applications.
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Affiliation(s)
- Iftikhar Hussain
- Department of Mechanical Engineering, City University of Hong Kong, 83 Tat Chee Avenue, Kowloon, Hong Kong, People's Republic of China
| | - Charmaine Lamiel
- Department of Chemical Engineering, University of Wyoming, Laramie, WY, 82071, USA
| | - Sumanta Sahoo
- Department of Chemistry, Madanapalle Institute of Technology and Science, Madanapalle, Andhra Pradesh, 517325, India
| | - Muhammad Sufyan Javed
- School of Physical Science and Technology, Lanzhou University, Lanzhou, 730000, People's Republic of China
| | - Muhammad Ahmad
- Department of Mechanical Engineering, City University of Hong Kong, 83 Tat Chee Avenue, Kowloon, Hong Kong, People's Republic of China
| | - Xi Chen
- Department of Mechanical Engineering, City University of Hong Kong, 83 Tat Chee Avenue, Kowloon, Hong Kong, People's Republic of China
| | - Shuai Gu
- Department of Mechanical Engineering, City University of Hong Kong, 83 Tat Chee Avenue, Kowloon, Hong Kong, People's Republic of China
| | - Ning Qin
- Department of Mechanical Engineering, City University of Hong Kong, 83 Tat Chee Avenue, Kowloon, Hong Kong, People's Republic of China
| | - Mohammed A Assiri
- Department of Chemistry, Faculty of Science, King Khalid University, Abha, 61413, Saudi Arabia
| | - Kaili Zhang
- Department of Mechanical Engineering, City University of Hong Kong, 83 Tat Chee Avenue, Kowloon, Hong Kong, People's Republic of China.
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Design and characterization of monolayer Ti3C2 MXene/NiCo2O4 nanocones hybrid architecture for asymmetric supercapacitors. J Electroanal Chem (Lausanne) 2022. [DOI: 10.1016/j.jelechem.2022.116787] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/19/2022]
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4
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Hussain I, Ahmad M, Chen X, Abbas N, Al Arni S, Salih AA, Benaissa M, Ashraf M, Ayaz M, Imran M, Ansari MZ, Zhang K. Glycol-assisted Cu-doped ZnS polyhedron-like structure as binder-free novel electrode materials. JOURNAL OF SAUDI CHEMICAL SOCIETY 2022. [DOI: 10.1016/j.jscs.2022.101510] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 12/26/2022]
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5
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Wang J, Wang Z, Liu N, Liu C, Yan J, Li CC, Cui J, Liu J, Hu X, Wu Y. Al doped Ni-Co layered double hydroxides with surface-sulphuration for highly stable flexible supercapacitors. J Colloid Interface Sci 2022; 615:173-183. [DOI: 10.1016/j.jcis.2022.01.172] [Citation(s) in RCA: 4] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/23/2021] [Revised: 01/23/2022] [Accepted: 01/26/2022] [Indexed: 01/02/2023]
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6
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Hussain I, Sahoo S, Sayed MS, Ahmad M, Sufyan Javed M, Lamiel C, Li Y, Shim JJ, Ma X, Zhang K. Hollow nano- and microstructures: Mechanism, composition, applications, and factors affecting morphology and performance. Coord Chem Rev 2022. [DOI: 10.1016/j.ccr.2022.214429] [Citation(s) in RCA: 17] [Impact Index Per Article: 8.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/03/2022]
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7
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Hussain I, Hussain T, Ahmad M, Ma X, Javed MS, Lamiel C, Chen Y, Ahuja R, Zhang K. Modified KBBF-like Material for Energy Storage Applications: ZnNiBO 3(OH) with Enhanced Cycle Life. ACS APPLIED MATERIALS & INTERFACES 2022; 14:8025-8035. [PMID: 35104095 DOI: 10.1021/acsami.1c23583] [Citation(s) in RCA: 5] [Impact Index Per Article: 2.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 05/26/2023]
Abstract
Not only are new and novel materials sought for electrode material development, but safe and nontoxic materials are also highly being intensively investigated. Herein, we prepare ZnNiBO3(OH) (ZNBH), a modified and Be-free KBe2BO3F2 (KBBF) family member as an effective electrode material. The novel ZNBH resembles the KBBF structure but with reinforced structure and bonding, in addition to well-incorporated conductive metals benefiting supercapacitor applications. The enhanced electronic properties of ZNBH are further studied by means of density functional theory calculations. The as-prepared ZNBH electrode material exhibits a specific capacity of 746 C g-1 at a current density of 1 A g-1. A hybrid supercapacitor (HSC) device is fabricated and successfully illuminated multiple color LEDs. Interestingly, even after being subjected to long charge-discharge for 10 000 cycles, the ZNBH//AC HSC device retains 97.2% of its maximum capacity, indicating the practicality of ZNBH as an electrode material.
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Affiliation(s)
- Iftikhar Hussain
- Department of Mechanical Engineering, City University of Hong Kong, 83 Tat Chee Avenue, Kowloon, Hong Kong
| | - Tanveer Hussain
- School of Chemical Engineering, The University of Queensland, St Lucia, Queensland 4072, Australia
- School of Science and Technology, University of New England, Armidale, New South Wales 2351, Australia
| | - Muhammad Ahmad
- Department of Mechanical Engineering, City University of Hong Kong, 83 Tat Chee Avenue, Kowloon, Hong Kong
| | - Xiaoxia Ma
- Department of Mechanical Engineering, City University of Hong Kong, 83 Tat Chee Avenue, Kowloon, Hong Kong
| | - Muhammad Sufyan Javed
- School of Physical Science and Technology, Lanzhou University, Lanzhou 730000, P. R. China
| | - Charmaine Lamiel
- Department of Chemical Engineering, University of Wyoming, Laramie, Wyoming 82071, United States
| | - Yatu Chen
- Department of Mechanical Engineering, City University of Hong Kong, 83 Tat Chee Avenue, Kowloon, Hong Kong
| | - Rajeev Ahuja
- Condensed Matter Theory Group, Department of Physics and Astronomy, Uppsala University, Box 516, S-75120 Uppsala, Sweden
| | - Kaili Zhang
- Department of Mechanical Engineering, City University of Hong Kong, 83 Tat Chee Avenue, Kowloon, Hong Kong
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8
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Xie M, Zhou M, Zhang Y, Du C, Chen J, Wan L. Freestanding trimetallic Fe-Co-Ni phosphide nanosheet arrays as an advanced electrode for high-performance asymmetric supercapacitors. J Colloid Interface Sci 2022; 608:79-89. [PMID: 34626998 DOI: 10.1016/j.jcis.2021.09.159] [Citation(s) in RCA: 11] [Impact Index Per Article: 5.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/15/2021] [Revised: 09/24/2021] [Accepted: 09/25/2021] [Indexed: 10/20/2022]
Abstract
Transition metal phosphides hold great promise for high performance battery-type electrode materials due to their superb electrical conductivity and high theoretical capacity. Unfortunately, the electrochemical properties of single metal or bimetallic phosphides are unsatisfactory owing to their low energy density and poor cyclic stability, and one feasible approach is to introduce heteroatoms to form trimetallic phosphides. Here, novel Fe-Co-Ni-P nanosheet arrays are in situ synthesized on a flexible carbon cloth substrate via an electrodeposition method followed by a phosphorization treatment. Due to the presence of abundant redox active sites, large specific surface area with mesoporous channels, desirable electrical conductivity, modified electronic structure, and synergistic effect of Fe, Co, and Ni ions, the as-prepared Fe-Co-Ni-P electrode displays significantly enhanced electrochemical performance when compared to bimetallic phosphides Fe-Co-P and Fe-Ni-P. Remarkably, the Fe-Co-Ni-P electrode exhibits a large specific capacity of 593.0 C g-1 at 1 A g-1, exceptional rate performance (80.3% capacity retention at 20 A g-1), and good cycling stability (84.2% capacity retention after 5000cycles). Besides, an asymmetric supercapacitor device with Fe-Co-Ni-P electrode as a positive electrode and a hierarchical porous carbon as a negative electrode shows a high energy density of 57.1 Wh kg-1 at a power density of 768.5 W kg-1 as well as excellent cyclability with 88.4% of initial capacity after 10,000cycles. This work manifests that the construction of trimetallic phosphides is an effective strategy to solve the shortcomings of single or bimetallic phosphides for high-performance supercapacitors.
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Affiliation(s)
- Mingjiang Xie
- Hubei Key Lab for Processing and Application of Catalytic Materials, College of Chemical Engineering, Huanggang Normal University, Huanggang 437000, China.
| | - Meng Zhou
- Hubei Key Lab for Processing and Application of Catalytic Materials, College of Chemical Engineering, Huanggang Normal University, Huanggang 437000, China
| | - Yan Zhang
- Hubei Key Lab for Processing and Application of Catalytic Materials, College of Chemical Engineering, Huanggang Normal University, Huanggang 437000, China
| | - Cheng Du
- Hubei Key Lab for Processing and Application of Catalytic Materials, College of Chemical Engineering, Huanggang Normal University, Huanggang 437000, China
| | - Jian Chen
- Hubei Key Lab for Processing and Application of Catalytic Materials, College of Chemical Engineering, Huanggang Normal University, Huanggang 437000, China
| | - Liu Wan
- Hubei Key Lab for Processing and Application of Catalytic Materials, College of Chemical Engineering, Huanggang Normal University, Huanggang 437000, China.
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9
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Li H, Liu T, He Y, Song J, Meng A, Sun C, Hu M, Wang L, Li G, Zhang Z, Liu Y, Zhao J, Li Z. Interfacial Engineering and a Low-Crystalline Strategy for High-Performance Supercapacitor Negative Electrodes: Fe 2P 2O 7 Nanoplates Anchored on N/P Co-doped Graphene Nanotubes. ACS APPLIED MATERIALS & INTERFACES 2022; 14:3363-3373. [PMID: 34985247 DOI: 10.1021/acsami.1c17356] [Citation(s) in RCA: 7] [Impact Index Per Article: 3.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/14/2023]
Abstract
Developing novel hybrid negative electrode materials with high specific capacity, rate capacitance, and long-term cycle stability is a key factor for pushing large-scale application of supercapacitors. However, construction of robust interfaces and low-crystalline active materials plays a crucial role in realizing the target. In this paper, a one-step phosphorization approach was employed to make low-crystalline Fe2P2O7 nanoplates closely bonded to N/P-co-doped graphene nanotubes (N/P-GNTs@b-Fe2P2O7) through interfacial chemical bonding. The N and P heteroatoms as substitutions for C in GNT skeletons can introduce rich electronic centers, which induces Fe2P2O7 to fix the surface of N/P-GNTs through Fe-N and Fe-P bonds as confirmed by the characterizations. Moreover, the low-crystalline active materials own a disordered internal structure and numerous defects, which not only endows with excellent conductivity but also provides many active sites for redox reactions. Benefiting from the synergistic effects, the prepared N/P-GNTs@b-Fe2P2O7 can not only deliver a high capacity of 257 mA h g-1 (927 F g-1) at 1 A g-1 but also present an excellent rate capability of 184 mA h g-1 (665 F g-1) at 50 A g-1 and outstanding cycle stability (∼90.6% capacity retention over 40,000 cycles). Furthermore, an asymmetric supercapacitor was assembled using the obtained N/P-GNTs@b-Fe2P2O7 as electrode materials, which can present the energy density as high as 83.3 W h kg-1 at 791 W kg-1 and long-term durability. Therefore, this strategy not only offers an effective pathway for achieving high-performance negative electrode materials but also lays a foundation for further industrialization.
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Affiliation(s)
- Huanyu Li
- College of Materials Science and Engineering, Qingdao University of Science and Technology, Qingdao 266042, Shandong, P. R. China
| | - Ting Liu
- Key Laboratory of Polymer Material Advanced Manufacturing Technology of Shandong Provincial, College of Electromechanical Engineering, Qingdao University of Science and Technology, Qingdao 266061, Shandong, P. R. China
| | - Yinna He
- State Key Laboratory Base of Eco-chemical Engineering, College of Chemistry and Molecular Engineering, Qingdao University of Science and Technology, Qingdao 266042, Shandong, P. R. China
| | - Jiangnan Song
- Key Laboratory of Polymer Material Advanced Manufacturing Technology of Shandong Provincial, College of Electromechanical Engineering, Qingdao University of Science and Technology, Qingdao 266061, Shandong, P. R. China
| | - Alan Meng
- State Key Laboratory Base of Eco-chemical Engineering, College of Chemistry and Molecular Engineering, Qingdao University of Science and Technology, Qingdao 266042, Shandong, P. R. China
| | - Changlong Sun
- College of Materials Science and Engineering, Qingdao University of Science and Technology, Qingdao 266042, Shandong, P. R. China
| | - Minmin Hu
- College of Materials Science and Engineering, Qingdao University of Science and Technology, Qingdao 266042, Shandong, P. R. China
| | - Lei Wang
- State Key Laboratory Base of Eco-chemical Engineering, College of Chemistry and Molecular Engineering, Qingdao University of Science and Technology, Qingdao 266042, Shandong, P. R. China
| | - Guicun Li
- College of Materials Science and Engineering, Qingdao University of Science and Technology, Qingdao 266042, Shandong, P. R. China
| | - Zhenhui Zhang
- College of Materials Science and Engineering, Qingdao University of Science and Technology, Qingdao 266042, Shandong, P. R. China
| | - Yuan Liu
- College of Materials Science and Engineering, Qingdao University of Science and Technology, Qingdao 266042, Shandong, P. R. China
| | - Jian Zhao
- College of Materials Science and Engineering, Qingdao University of Science and Technology, Qingdao 266042, Shandong, P. R. China
- Lucida Machinery Co., Ltd., Binzhou 256600, Shandong, P. R. China
| | - Zhenjiang Li
- College of Materials Science and Engineering, Qingdao University of Science and Technology, Qingdao 266042, Shandong, P. R. China
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10
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Qian H, Liu M, Zhang H, Wei X, Zhang H, Li S, Huang F. Investigating the excellent electrochemical energy storage performance in heterogeneous interfaces of Co9S8@NiMn oxide by photoirradiation. Electrochim Acta 2021. [DOI: 10.1016/j.electacta.2021.139378] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/20/2022]
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11
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Hussain I, Mohapatra D, Lamiel C, Ahmad M, Ashraf MA, Chen Y, Gu S, Javed MS, Zhang K. Phosphorus containing layered quadruple hydroxide electrode materials on lab waste recycled flexible current collector. J Colloid Interface Sci 2021; 609:566-574. [PMID: 34836654 DOI: 10.1016/j.jcis.2021.11.063] [Citation(s) in RCA: 11] [Impact Index Per Article: 3.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/12/2021] [Revised: 11/11/2021] [Accepted: 11/12/2021] [Indexed: 10/19/2022]
Abstract
From environmental waste to energy storage, waste boxes converted into conductive electrodes to further grow active materials has been an interesting way of upcycling. In this study, we transformed waste boxes of KIMTECH Kimwipes® into conductive f-MWCNTs light and flexible substrate (LFS) as current collectors. Then, undoped and P-doped active materials consisting of layered quadruple hydroxides (LQH) was successfully grown on the conductive f-MWCNTs/LFS. Specifically, P-doped f-MWCNTs/LQH demonstrates 1.8 times the capacitance of an undoped f-MWCNTs/LQH. Such conversion of waste boxes not only offers a useful way of reusing waste papers which commonly ends in landfills, but the inexpensive method also offers an extreme way of cutting cost in developing conductive substrates. Also, the effective strategy of synthesizing active materials on the conductive f-MWCNTs/LFS paves its way as potential cheap electrodes of the future generation.
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Affiliation(s)
- Iftikhar Hussain
- Department of Mechanical Engineering, City University of Hong Kong, 83 Tat Chee Avenue, Kowloon, Hong Kong
| | - Debananda Mohapatra
- School of Chemical Engineering, Yeungnam University, Gyeongsan, Gyeongbuk 38541, South Korea
| | - Charmaine Lamiel
- Department of Chemical Engineering, University of Wyoming, Laramie, WY 82071, USA
| | - Muhammad Ahmad
- Department of Mechanical Engineering, City University of Hong Kong, 83 Tat Chee Avenue, Kowloon, Hong Kong
| | - Muhammad Awais Ashraf
- State Key Laboratory of Multicomplex Phase Systems, Institute of Process Engineering, Chinese Academy of Science, Beijing, China
| | - Yatu Chen
- Department of Mechanical Engineering, City University of Hong Kong, 83 Tat Chee Avenue, Kowloon, Hong Kong
| | - Shuai Gu
- Department of Mechanical Engineering, City University of Hong Kong, 83 Tat Chee Avenue, Kowloon, Hong Kong
| | - Muhammad Sufyan Javed
- School of Physical Science and Technology, Lanzhou University, Lanzhou 730000, China
| | - Kaili Zhang
- Department of Mechanical Engineering, City University of Hong Kong, 83 Tat Chee Avenue, Kowloon, Hong Kong.
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Hu Q, Chai Y, Zhou X, Ding S, Lin D, Jiang N, Huo Y, Zheng Q, Zhao J, Qu G. Electrochemical Anion-Exchanged synthesis of porous Ni/Co hydroxide nanosheets for Ultrahigh-Capacitance supercapacitors. J Colloid Interface Sci 2021; 600:256-263. [DOI: 10.1016/j.jcis.2021.05.039] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/04/2021] [Revised: 05/06/2021] [Accepted: 05/07/2021] [Indexed: 10/21/2022]
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Engineering triangular bimetallic metal-organic-frameworks derived hierarchical zinc-nickel-cobalt oxide nanosheet arrays@reduced graphene oxide-Ni foam as a binder-free electrode for ultra-high rate performance supercapacitors and methanol electro-oxidation. J Colloid Interface Sci 2021; 602:573-589. [PMID: 34146947 DOI: 10.1016/j.jcis.2021.06.030] [Citation(s) in RCA: 17] [Impact Index Per Article: 5.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/23/2021] [Revised: 06/04/2021] [Accepted: 06/04/2021] [Indexed: 02/04/2023]
Abstract
The rigorous fabrication of electrode materials using upper-ranked porous precursor especially metal organic frameworks (MOFs) are challenging but appealing task to procure electrochemical energy storage and conversion system with altitudinous performance. Herein, we replenish the rational construction of atypical electrode of hollow Zn-Ni-Co-oxide (ZNCO) nanosheet arrays onto rGO garnished Ni foam (rGO/NF) via two step solution based method. Firstly, 2D Zn-Co-MOFs derived nanoleave arrays are prepared by co-precipitation method. Next, hollow and porous ZNCO nanostructure from 2D solid nanoleave arrays are achieved by ion-exchange and etching process conjoined with post annealing treatment. The as-fabricated hierarchical ZNCO nanosheet arrays offer large numbers of electroactive sites with short ion-diffusion pathways, reflecting the outstanding electrochemical performance in-terms of excellent specific capacity (267 mAh g-1) ultra-high rate capability (83.82% at 50 A/g) and long-term cycling life (~90.16%) in three electrode configuration for supercapacitor (SCs). Moreover, the hollow and porous ZNCO nanostructure responds as immensely active and substantial electrocatalyst for methanol oxidation with lowest onset potential of 0.27 V. To demonstrate the practicability, hybrid supercapacitor (HSC) device is constructed using ZNCO@rGO-NF nanostructure as positive and rGO decorated MOF derived porous carbon (rGO-MDPC) as negative electrode. The as-assembled ZNCO//rGO-MDPC ASC device delivers higher energy density of 61.25 Wh kg-1 at the power density of 750 W kg-1 with long-term cyclic stability (<6% to its initial specific capacity value) after 6000 cycles.
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14
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Gunasekaran SS, Badhulika S. N-Doped carbon as the anode and ZnCo 2O 4/N-doped carbon nanocomposite as the cathode for high-performance asymmetric supercapacitor application. NEW J CHEM 2021. [DOI: 10.1039/d1nj01526e] [Citation(s) in RCA: 6] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/29/2022]
Abstract
Herein, we report a one-pot hydrothermal assisted synthesis of ZnCo2O4/N-doped carbon nanocomposite (ZC/NC) for high-performance asymmetric supercapacitor applications.
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Affiliation(s)
| | - Sushmee Badhulika
- Department of Electrical Engineering
- Indian Institute of Technology Hyderabad
- Hyderabad
- India
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