1
|
Zhang B, Yang Y, Cai J, Hou X, Yi C, Liao X, Liu Y, Chen C, Yu D, Zhou X. Mg doping of NiMn-LDH with a three-dimensional porous morphology for an efficient supercapacitor. Dalton Trans 2023; 52:10557-10566. [PMID: 37458614 DOI: 10.1039/d3dt01154b] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 08/02/2023]
Abstract
As a promising supercapacitor electrode material, NiMn-LDH has attracted great attention due to its high theoretical capacity and easy preparation. However, the development and application of NiMn-LDH in supercapacitors are limited because of its poor cycling stability and low electrical conductivity. To solve these problems, a NiMnMg-LDH with a three-dimensional porous morphology has been successfully fabricated by doping with Mg to improve its electrochemical properties. Experimental results indicate that NiMnMg-LDH-7 delivers a specific capacitance of 1772 F g-1 at a current density of 1 A g-1. Moreover, it can still reach 1080 F g-1 when the current density is increased 10 times, suggesting excellent rate capability. The asymmetric supercapacitor (ASC) NiMnMg-LDH-7//AC can provide a high energy density of 28 W h kg-1 at a power density of 700 W kg-1. Furthermore, the energy density can still reach 16 W h kg-1 even if the power density is increased to close to 3500 W kg-1. The capacity retention of this ASC device can reach 74% after 3000 cycles at a current density of 3 A g-1. These excellent properties of NiMnMg-LDH can be attributed to the obvious improvement of its specific surface area and electrical conductivity owing to doping with the element magnesium. We believe that this work could provide a new idea for the preparation of high-performance electrode materials for supercapacitors.
Collapse
Affiliation(s)
- Biao Zhang
- School of Chemistry and Chemical Engineering, Chongqing University, Chongqing, 401331, P.R. China
| | - Ying Yang
- School of Chemistry and Chemical Engineering, Chongqing University, Chongqing, 401331, P.R. China
| | - Jingliang Cai
- School of Chemistry and Chemical Engineering, Chongqing University, Chongqing, 401331, P.R. China
| | - Xiaolong Hou
- School of Chemistry and Chemical Engineering, Chongqing University, Chongqing, 401331, P.R. China
| | - Caini Yi
- School of Chemistry and Chemical Engineering, Chongqing University, Chongqing, 401331, P.R. China
| | - Xuan Liao
- School of Chemistry and Chemical Engineering, Chongqing University, Chongqing, 401331, P.R. China
| | - Yuping Liu
- School of Chemistry and Chemical Engineering, Chongqing University, Chongqing, 401331, P.R. China
| | - Changguo Chen
- School of Chemistry and Chemical Engineering, Chongqing University, Chongqing, 401331, P.R. China
| | - Danmei Yu
- School of Chemistry and Chemical Engineering, Chongqing University, Chongqing, 401331, P.R. China
| | - Xiaoyuan Zhou
- College of Physics, Chongqing University, Chongqing, 401331, P.R. China
| |
Collapse
|
2
|
Song W, Xu Y, Xie X, Li C, Zhu W, Xiang Q, Chen W, Tang N, Wang L. CoFe-Layered Double Hydroxide Coupled with Pd Particles for Electrocatalytic Ethanol Oxidation. ACS APPLIED MATERIALS & INTERFACES 2023. [PMID: 37216444 DOI: 10.1021/acsami.3c01541] [Citation(s) in RCA: 4] [Impact Index Per Article: 4.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 05/24/2023]
Abstract
Electrocatalytic efficiency and stability have emerged as critical issues in the ethanol oxidation reaction (EOR) of direct ethanol fuel cells. In this paper, Pd/Co1Fe3-LDH/NF as an electrocatalyst for EOR was prepared by a two-step synthetic strategy. Metal-oxygen bonds formed between Pd nanoparticles and Co1Fe3-LDH/NF guaranteed structural stability and adequate surface-active site exposure. More importantly, the charge transfer of the formed Pd-O-Co(Fe) bridge could effectively modulate the electrical structure of hybrids, improving the facilitated absorption of OH- radicals and oxidation of COads. Benefiting from the interfacial interaction, exposed active sites, and structural stability, the observed specific activity for Pd/Co1Fe3-LDH/NF (17.46 mA cm-2) was 97 and 73 times higher than those of commercial Pd/C (20%) (0.18 mA cm-2) and Pt/C (20%) (0.24 mA cm-2), respectively. Besides, the jf/jr ratio representing the resistance to catalyst poisoning was 1.92 in the Pd/Co1Fe3-LDH/NF catalytic system. These results provide insights into optimizing the electronic interaction between metals and the support of electrocatalysts for EOR.
Collapse
Affiliation(s)
- Wenwen Song
- College of Materials Science and Engineering, Guilin University of Technology, Guilin 541004, China
| | - Yanqi Xu
- College of Materials Science and Engineering, Guilin University of Technology, Guilin 541004, China
- Key Laboratory of New Technology for Processing Nonferrous Metals and Materials, Ministry of Education; Collaborative Innovation Center for Exploration of Nonferrous Metal Deposits and Efficient Utilization of Resources in Guangxi, Guilin University of Technology, Guilin 541004, China
| | - Xiangli Xie
- College of Chemistry and Bioengineering, Guilin University of Technology, Guilin 541004, China
| | - Cunjun Li
- College of Materials Science and Engineering, Guilin University of Technology, Guilin 541004, China
- Key Laboratory of New Technology for Processing Nonferrous Metals and Materials, Ministry of Education; Collaborative Innovation Center for Exploration of Nonferrous Metal Deposits and Efficient Utilization of Resources in Guangxi, Guilin University of Technology, Guilin 541004, China
| | - Wenfeng Zhu
- College of Materials Science and Engineering, Guilin University of Technology, Guilin 541004, China
- Key Laboratory of New Technology for Processing Nonferrous Metals and Materials, Ministry of Education; Collaborative Innovation Center for Exploration of Nonferrous Metal Deposits and Efficient Utilization of Resources in Guangxi, Guilin University of Technology, Guilin 541004, China
| | - Qiankun Xiang
- Shenzhen Shenai Semiconductor Co., Ltd., Shenzhen 518116, China
| | - Wei Chen
- State Key Laboratory of Chemical Resource Engineering, Beijing University of Chemical Technology, Beijing 100029, China
| | - Ningli Tang
- College of Chemistry and Bioengineering, Guilin University of Technology, Guilin 541004, China
| | - Linjiang Wang
- College of Materials Science and Engineering, Guilin University of Technology, Guilin 541004, China
- Key Laboratory of New Technology for Processing Nonferrous Metals and Materials, Ministry of Education; Collaborative Innovation Center for Exploration of Nonferrous Metal Deposits and Efficient Utilization of Resources in Guangxi, Guilin University of Technology, Guilin 541004, China
| |
Collapse
|
3
|
N Dhandapani H, Karmakar A, Selvasundarasekar SS, Kumaravel S, Nagappan S, Madhu R, Ramesh Babu B, Kundu S. Modulating the Surface Electronic Structure of Active Ni Sites by Engineering Hierarchical NiFe-LDH/CuS over Cu Foam as an Efficient Electrocatalyst for Water Splitting. Inorg Chem 2022; 61:21055-21066. [PMID: 36523209 DOI: 10.1021/acs.inorgchem.2c03589] [Citation(s) in RCA: 8] [Impact Index Per Article: 4.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/23/2022]
Abstract
Water electrolysis encounters a challenging problem in designing a highly efficient, long durable, non-noble metal-free electrocatalyst for both oxygen evolution reaction (OER) and hydrogen evolution reaction (HER). Here, in our work, a two-step hydrothermal reaction was performed to construct a hierarchal NiFe-layer double hydroxide (LDH)/CuS over copper foam for the overall water splitting reaction. While employed the same as an anode material, the designed heterostructure electrode NiFe-LDH/CuS/Cu exhibits excellent OER performance and it demands 249 mV overpotential to reach a current density of 50 mA cm-2 with a lower Tafel slope value of 81.84 mV dec-1. While as a cathode material, the NiFe-LDH/CuS/Cu shows superior HER performance and it demands just 28 mV of overpotential value to reach a current density of 10 mA cm-2 and a lower Tafel slope value of 95.98 mV dec-1. Hence, the NiFe-LDH/CuS/Cu outperforms the commercial Pt/C and RuO2 in terms of activity in HER and OER, respectively. Moreover, when serving as both the cathode and anode catalysts in an electrolyzer for total water splitting, the synthesized electrode only needs a cell potential of 1.55 V versus RHE to reach a current density of 20 mA cm-2 and long-term durability for 25 h in alkaline media. To study the interfacial electron transfer, Mott-Schottky experiments were performed, representing that the electron is transferred from n-type NiFe-LDH to p-type CuS as a result of creating the p-n junction in NiFe-LDH/CuS/Cu. The formation of this p-n junction allows the LDH layer to be more active toward the OH- adsorption and thereby could allow the OER or HER with a less energy input. This work affords another route to a cost effective, highly efficient catalyst toward producing clean energy across the globe.
Collapse
Affiliation(s)
- Hariharan N Dhandapani
- Academy of Scientific and Innovative Research (AcSIR), Ghaziabad 201002, India.,Electrochemical Process Engineering (EPE) Division, CSIR-Central Electrochemical Research Institute (CECRI), Karaikudi 630003, Tamil Nadu, India
| | - Arun Karmakar
- Academy of Scientific and Innovative Research (AcSIR), Ghaziabad 201002, India.,Electrochemical Process Engineering (EPE) Division, CSIR-Central Electrochemical Research Institute (CECRI), Karaikudi 630003, Tamil Nadu, India
| | - Sam Sankar Selvasundarasekar
- Academy of Scientific and Innovative Research (AcSIR), Ghaziabad 201002, India.,Electrochemical Process Engineering (EPE) Division, CSIR-Central Electrochemical Research Institute (CECRI), Karaikudi 630003, Tamil Nadu, India
| | - Sangeetha Kumaravel
- Academy of Scientific and Innovative Research (AcSIR), Ghaziabad 201002, India.,Electrochemical Process Engineering (EPE) Division, CSIR-Central Electrochemical Research Institute (CECRI), Karaikudi 630003, Tamil Nadu, India
| | - Sreenivasan Nagappan
- Academy of Scientific and Innovative Research (AcSIR), Ghaziabad 201002, India.,Electrochemical Process Engineering (EPE) Division, CSIR-Central Electrochemical Research Institute (CECRI), Karaikudi 630003, Tamil Nadu, India
| | - Ragunath Madhu
- Academy of Scientific and Innovative Research (AcSIR), Ghaziabad 201002, India.,Electrochemical Process Engineering (EPE) Division, CSIR-Central Electrochemical Research Institute (CECRI), Karaikudi 630003, Tamil Nadu, India
| | - B Ramesh Babu
- Academy of Scientific and Innovative Research (AcSIR), Ghaziabad 201002, India.,Electrochemical Process Engineering (EPE) Division, CSIR-Central Electrochemical Research Institute (CECRI), Karaikudi 630003, Tamil Nadu, India
| | - Subrata Kundu
- Academy of Scientific and Innovative Research (AcSIR), Ghaziabad 201002, India.,Electrochemical Process Engineering (EPE) Division, CSIR-Central Electrochemical Research Institute (CECRI), Karaikudi 630003, Tamil Nadu, India
| |
Collapse
|
4
|
Messaoudi Y, Belhadj H, Khelladi MR, Azizi A. Rational design of NiFe alloys for efficient electrochemical hydrogen evolution reaction: effects of Ni/Fe molar ratios. RSC Adv 2022; 12:29143-29150. [PMID: 36320734 PMCID: PMC9554736 DOI: 10.1039/d2ra05922c] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/19/2022] [Accepted: 10/07/2022] [Indexed: 11/07/2022] Open
Abstract
Developing and designing high-performance and stable NiFe electrodes for efficient hydrogen production are the greatest challenges in electrochemical water splitting. In this work, NiFe alloys with different Ni and Fe contents are prepared by a simple electrodeposition method using different molar ratios of Ni/Fe precursors (Ni/Fe; 1 : 3, 1 : 1 and 3 : 1). The obtained NiFe electrode with a molar ratio of 3 : 1 exhibited better electrocatalytic activity for the HER than the other NiFe electrodes with 1 : 3 and 1 : 1 molar ratios. The NiFe (Ni/Fe, 3 : 1) electrode required an overpotential of 133 mV to reach a current density of 10 mA cm−2, which was much lower than those of NiFe with molar ratio of 1 : 3 (220 mV), and 1 : 1 (365 mV), respectively. Tafel slope analyses demonstrated that the HER mechanism of NiFe alloy coatings followed the Volmer reaction type. The superior electrocatalytic performance of the NiFe alloy for HER depending on precursor molar ratio of Ni/Fe was attributed to their composition in terms of Ni and Fe content, structure and surface morphology. Specifically, the electrodeposition of the NiFe alloy was obtained in a molar ratio Ni/Fe, 3 : 1, and induced the formation of NiFe layered double hydroxide (LDH) with a nanosheet-array structure. The high electrocatalytic activity of NiFe LDH (Ni/Fe, 3 : 1) confirmed the critical influence of Ni and Fe contents in the alloy resulting in an increase the active surface on the surfaces, which is most likely explained by the higher surface roughness and the low crystallinity structure of NiFe nanosheet-array, supported by ECSA measurement, XRD, SEM and AFM analyses. The present strategy may open an avenue for developing cost-effective, stable and high-performance electrocatalysts as advanced electrodes for large-scale water splitting. Developing and designing high-performance and stable NiFe electrodes for efficient hydrogen production in alkaline medium.![]()
Collapse
Affiliation(s)
- Yazid Messaoudi
- Laboratoire de Chimie, Ingénierie Moléculaire et Nanostructures, Université Ferhat Abbas Sétif 1Sétif 19000Algeria
| | - Hamza Belhadj
- Unit of Research in Nanosciences and Nanotechnologies (URNN), Center for Development of Advanced Technologies (CDTA), Université Ferhat Abbas Sétif 1Sétif 19000Algeria
| | - Mohamed R. Khelladi
- Laboratoire de Chimie, Ingénierie Moléculaire et Nanostructures, Université Ferhat Abbas Sétif 1Sétif 19000Algeria
| | - Amor Azizi
- Laboratoire de Chimie, Ingénierie Moléculaire et Nanostructures, Université Ferhat Abbas Sétif 1Sétif 19000Algeria
| |
Collapse
|
5
|
Rational design and facile synthesis of Ni-Co-Fe ternary LDH porous sheets for high-performance aqueous asymmetric supercapacitor. Electrochim Acta 2022. [DOI: 10.1016/j.electacta.2022.140939] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/28/2022]
|
6
|
Tian Z, Peng B, Yang J, Shi Y, Ma C, Liu G, Zheng W. Fe‐doped Nickel Carbonate Hydroxide Array Electrocatalysts for Enhanced Oxygen Evolution Reaction. ChemistrySelect 2022. [DOI: 10.1002/slct.202201844] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/09/2022]
Affiliation(s)
- Zhangmin Tian
- Department of Chemistry Key Laboratory of Advanced Energy Materials Chemistry (MOE) TKL of Metal and Molecule-based Material Chemistry College of Chemistry Nankai University Tianjin 300071 P. R. China
| | - Bin Peng
- Department of Chemistry Key Laboratory of Advanced Energy Materials Chemistry (MOE) TKL of Metal and Molecule-based Material Chemistry College of Chemistry Nankai University Tianjin 300071 P. R. China
| | - Jianing Yang
- Department of Chemistry Key Laboratory of Advanced Energy Materials Chemistry (MOE) TKL of Metal and Molecule-based Material Chemistry College of Chemistry Nankai University Tianjin 300071 P. R. China
| | - Yingying Shi
- Department of Chemistry Key Laboratory of Advanced Energy Materials Chemistry (MOE) TKL of Metal and Molecule-based Material Chemistry College of Chemistry Nankai University Tianjin 300071 P. R. China
| | - Chenxu Ma
- Department of Chemistry Key Laboratory of Advanced Energy Materials Chemistry (MOE) TKL of Metal and Molecule-based Material Chemistry College of Chemistry Nankai University Tianjin 300071 P. R. China
| | - Guiying Liu
- Department of Chemistry Key Laboratory of Advanced Energy Materials Chemistry (MOE) TKL of Metal and Molecule-based Material Chemistry College of Chemistry Nankai University Tianjin 300071 P. R. China
| | - Wenjun Zheng
- Department of Chemistry Key Laboratory of Advanced Energy Materials Chemistry (MOE) TKL of Metal and Molecule-based Material Chemistry College of Chemistry Nankai University Tianjin 300071 P. R. China
- Collaborative Innovation Center of Chemical Science and Engineering (Tianjin) Nankai University Tianjin 300071 P. R. China
| |
Collapse
|
7
|
Preparation of a Honeycomb-like FeNi(OH/P) Nanosheet Array as a High-Performance Cathode for Hybrid Supercapacitors. ENERGIES 2022. [DOI: 10.3390/en15113877] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 12/10/2022]
Abstract
Polymetallic transition metal phosphides (TMPs) exhibit quasi-metallic properties and a high electrical conductivity, making them attractive for high-performance hybrid supercapacitors (HSCs). Herein, a nanohoneycomb (NHC)-like FeNi layered double hydroxide (LDH) array was grown in situ on 3D current collector nickel foam (NF), which is also the nickel source during the hydrothermal process. By adjusting the amount of NaH2PO2, an incomplete phosphated FeNi(OH/P) nanosheet array was obtained. The optimized FeNi(OH/P) nanosheet array exhibited a high capacity up to 3.6 C cm−2 (408.3 mAh g−1) and an excellent long-term cycle performance (72.0% after 10,000 cycles), which was much better than FeNi LDH’s precursor. In addition, the hybrid supercapacitor (HSC) assembled with FeNi(OH/P) (cathode) and polypyrrole (PPy/C, anode) achieved an ultra-high energy density of 45 W h kg−1 at a power density of 581 W kg−1 and an excellent cycle stability (118.5%, 2000 cycles), indicating its great potential as an HSC with a high electrochemical performance.
Collapse
|
8
|
Design of mesoporous Ni-Co hydroxides nanosheets stabilized by BO2- for pseudocapacitors with superior performance. J Colloid Interface Sci 2022; 614:66-74. [DOI: 10.1016/j.jcis.2022.01.028] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/10/2021] [Revised: 01/04/2022] [Accepted: 01/05/2022] [Indexed: 12/14/2022]
|
9
|
Lee YJ, Park SK. Metal-Organic Framework-Derived Hollow CoS x Nanoarray Coupled with NiFe Layered Double Hydroxides as Efficient Bifunctional Electrocatalyst for Overall Water Splitting. SMALL (WEINHEIM AN DER BERGSTRASSE, GERMANY) 2022; 18:e2200586. [PMID: 35289501 DOI: 10.1002/smll.202200586] [Citation(s) in RCA: 27] [Impact Index Per Article: 13.5] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 01/26/2022] [Revised: 02/23/2022] [Indexed: 06/14/2023]
Abstract
For effective hydrogen production by water splitting, it is essential to develop earth-abundant, highly efficient, and durable electrocatalysts. Herein, the authors report a bifunctional electrocatalyst composed of hollow CoSx and Ni-Fe based layered double hydroxide (NiFe LDH) nanosheets for efficient overall water splitting (OWS). The optimized heterostructure is obtained by the electrodeposition of NiFe LDH nanosheets on metal-organic framework-derived hollow CoSx nanoarrays, which are supported on nickel foam (H-CoSx @NiFe LDH/NF). The unique structure of the hybrid material not only provides ample active sites, but also facilitates electrolyte penetration and gas release during the reactions. Additionally, the strong coupling and synergy between the hydrogen evolution reaction (HER) active CoSx and the oxygen evolution reaction (OER) active NiFe LDH gives rise to the excellent bifunctional properties. Consequently, H-CoSx @NiFe LDH/NF exhibits remarkable HER and OER activities with overpotentials of 95 and 250 mV, respectively at 10 mA cm-2 in 1.0 M KOH. Even at 1.0 A cm-2 , the electrode requires small overpotentials of 375 mV (for HER) and 418 mV (for OER), respectively. An electrolyzer based on H-CoSx @NiFe LDH/NF demonstrates a low cell voltage of 1.98 V at a current density of 300 mA cm-2 and good durability for 100 h in OWS application.
Collapse
Affiliation(s)
- Yun Jae Lee
- Department of Advanced Materials Engineering, Chung-Ang University, 4726, Seodong-daero, Daedeok-myeon, Anseong-si, Gyeonggi-do, 17546, Republic of Korea
| | - Seung-Keun Park
- Department of Advanced Materials Engineering, Chung-Ang University, 4726, Seodong-daero, Daedeok-myeon, Anseong-si, Gyeonggi-do, 17546, Republic of Korea
| |
Collapse
|
10
|
Ahn J, Park YS, Lee S, Yang J, Pyo J, Lee J, Kim GH, Choi SM, Seol SK. 3D-printed NiFe-layered double hydroxide pyramid electrodes for enhanced electrocatalytic oxygen evolution reaction. Sci Rep 2022; 12:346. [PMID: 35013468 PMCID: PMC8748972 DOI: 10.1038/s41598-021-04347-9] [Citation(s) in RCA: 6] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/30/2021] [Accepted: 12/13/2021] [Indexed: 12/20/2022] Open
Abstract
Electrochemical water splitting has been considered one of the most promising methods of hydrogen production, which does not cause environmental pollution or greenhouse gas emissions. Oxygen evolution reaction (OER) is a significant step for highly efficient water splitting because OER involves the four electron transfer, overcoming the associated energy barrier that demands a potential greater than that required by hydrogen evolution reaction. Therefore, an OER electrocatalyst with large surface area and high conductivity is needed to increase the OER activity. In this work, we demonstrated an effective strategy to produce a highly active three-dimensional (3D)-printed NiFe-layered double hydroxide (LDH) pyramid electrode for OER using a three-step method, which involves direct-ink-writing of a graphene pyramid array and electrodeposition of a copper conducive layer and NiFe-LDH electrocatalyst layer on printed pyramids. The 3D pyramid structures with NiFe-LDH electrocatalyst layers increased the surface area and the active sites of the electrode and improved the OER activity. The overpotential (η) and exchange current density (i0) of the NiFe-LDH pyramid electrode were further improved compared to that of the NiFe-LDH deposited Cu (NiFe-LDH/Cu) foil electrode with the same base area. The 3D-printed NiFe-LDH electrode also exhibited excellent durability without potential decay for 60 h. Our 3D printing strategy provides an effective approach for the fabrication of highly active, stable, and low-cost OER electrocatalyst electrodes.
Collapse
Affiliation(s)
- Jinhyuck Ahn
- Smart 3D Printing Research Team, Korea Electrotechnology Research Institute (KERI), Changwon-si, 51543, Gyeongsangnam-do, Republic of Korea.,Electro-functional Materials Engineering, University of Science and Technology (UST), Changwon-si, 51543, Gyeongsangnam-do, Republic of Korea
| | - Yoo Sei Park
- Department of Energy and Electronic Materials, Surface Materials Division, Korea Institute of Materials Science, Changwon-si, 642831, Gyeongsangnam-do, Republic of Korea.,Department of Materials Science and Engineering, Pusan National University, Busan, 46241, Republic of Korea
| | - Sanghyeon Lee
- KIURI Institute, Yonsei University, Seoul, 03722, Republic of Korea
| | - Juchan Yang
- Department of Energy and Electronic Materials, Surface Materials Division, Korea Institute of Materials Science, Changwon-si, 642831, Gyeongsangnam-do, Republic of Korea
| | - Jaeyeon Pyo
- Smart 3D Printing Research Team, Korea Electrotechnology Research Institute (KERI), Changwon-si, 51543, Gyeongsangnam-do, Republic of Korea
| | - Jooyoung Lee
- Department of Energy and Electronic Materials, Surface Materials Division, Korea Institute of Materials Science, Changwon-si, 642831, Gyeongsangnam-do, Republic of Korea
| | - Geul Han Kim
- Department of Energy and Electronic Materials, Surface Materials Division, Korea Institute of Materials Science, Changwon-si, 642831, Gyeongsangnam-do, Republic of Korea.,Department of Materials Science and Engineering, Pusan National University, Busan, 46241, Republic of Korea
| | - Sung Mook Choi
- Department of Energy and Electronic Materials, Surface Materials Division, Korea Institute of Materials Science, Changwon-si, 642831, Gyeongsangnam-do, Republic of Korea.
| | - Seung Kwon Seol
- Smart 3D Printing Research Team, Korea Electrotechnology Research Institute (KERI), Changwon-si, 51543, Gyeongsangnam-do, Republic of Korea. .,Electro-functional Materials Engineering, University of Science and Technology (UST), Changwon-si, 51543, Gyeongsangnam-do, Republic of Korea.
| |
Collapse
|
11
|
Wang J, Luo Y, Ling L, Wang X, Cui SC, Li Z, Jiao Z, Cheng L. Sandwich-like NiCo-LDH/rGO with Rich Mesopores and High Charge Transfer Capability for Flexible Supercapacitors. CrystEngComm 2022. [DOI: 10.1039/d2ce00565d] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
Abstract
Layered double metal hydroxides (LDHs) have been widely used in the energy storage field due to adjustable composition and interlayer spacing. However, easy to agglomerate, poor electrical conductivity, and large...
Collapse
|
12
|
Wang J, Ding Q, Bai C, Wang F, Sun S, Xu Y, Li H. Synthesis of CNTs/CoNiFe-LDH Nanocomposite with High Specific Surface Area for Asymmetric Supercapacitor. NANOMATERIALS (BASEL, SWITZERLAND) 2021; 11:2155. [PMID: 34578473 PMCID: PMC8465494 DOI: 10.3390/nano11092155] [Citation(s) in RCA: 6] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 07/28/2021] [Revised: 08/15/2021] [Accepted: 08/19/2021] [Indexed: 11/25/2022]
Abstract
Ternary layered double hydroxide (LDH) materials have shown promising application in hybrid supercapacitors. However, the low electrical conductivity of LDHs is still a restriction to their performance. Herein, carbon nanotubes/cobalt-nickel-iron LDH (CNTs/CoNiFe-LDH) hybrid material was prepared by a one-step hydrothermal approach for the first time. The presence of CNTs improved the conductivity and surface area of the electrode, leading to an enhanced electrochemical performance. The CNTs/CoNiFe-LDH hybrid electrode exhibited high specific capacity 170.6 mAh g-1 at a current density of 1 A g-1, with a capacity retention of 75% at 10 A g-1. CNTs/CoNiFe-LDH//AC asymmetric supercapacitor (ASC) was also assembled, which had high specific capacitance (96.1 F g-1 at the current density of 1 A g-1), good cycling stability (85.0% after 3000 cycles at 15 A g-1) and high energy density (29.9 W h kg-1 at the power density of 750.5 W kg-1). Therefore, the CNTs/CoNiFe-LDH material could be used for hybrid supercapacitor electrodes.
Collapse
Affiliation(s)
| | | | | | | | | | | | - Hongjuan Li
- Shaanxi Key Laboratory of Natural Products and Chemical Biology, College of Chemistry and Pharmacy, Northwest A&F University, Xianyang 712100, China; (J.W.); (Q.D.); (C.B.); (F.W.); (S.S.); (Y.X.)
| |
Collapse
|
13
|
Hu W, Chen L, Wu X, Du M, Song Y, Wu Z, Zheng Q. Slight Zinc Doping by an Ultrafast Electrodeposition Process Boosts the Cycling Performance of Layered Double Hydroxides for Ultralong-Life-Span Supercapacitors. ACS APPLIED MATERIALS & INTERFACES 2021; 13:38346-38357. [PMID: 34374275 DOI: 10.1021/acsami.1c10386] [Citation(s) in RCA: 12] [Impact Index Per Article: 4.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/13/2023]
Abstract
Layered double hydroxides (LDHs) have attracted much attention in supercapacitors because of the high specific surface area and theoretical capacitance. However, the bad cycling stability has always been their Achilles' heel that restrains their further application. In this paper, a small amount of unactive and single-valence element zinc, which has no contribution to the capacitance of electrodes, was first doped into NiCo-LDHs through two consecutive electrodeposition processes only within 30 min. With a polyaniline (PANI) nanolayer as the interlayer, an ultrathin NiCoZn-LDH nanoplate network was well-anchored on the carbon cloth surface. The slight Zn2+ doping dramatically enhanced the cycling performance of LDHs with little capacitance decay. Zn2+ doping enhanced the cyclic structural stability of NiCoZn-LDHs, while the PANI layer strengthened the interface interaction between LDHs and the current collector. By controlling the doping content of Zn2+ at 2.9%, the composite electrode achieved the best performance with a high specific capacitance of 1749 F g-1 and an ultralong life span with 89% capacitance retention after 40,000 charge-discharge cycles. This work offers a novel strategy to fast build LDH-based supercapacitors with both high specific capacitance and cycling performance.
Collapse
Affiliation(s)
- Wenxuan Hu
- MOE Key Laboratory of Macromolecular Synthesis and Functionalization, Department of Polymer Science and Engineering, Zhejiang University, Hangzhou 310027, China
| | - Lu Chen
- MOE Key Laboratory of Macromolecular Synthesis and Functionalization, Department of Polymer Science and Engineering, Zhejiang University, Hangzhou 310027, China
| | - Xing Wu
- MOE Key Laboratory of Macromolecular Synthesis and Functionalization, Department of Polymer Science and Engineering, Zhejiang University, Hangzhou 310027, China
| | - Miao Du
- MOE Key Laboratory of Macromolecular Synthesis and Functionalization, Department of Polymer Science and Engineering, Zhejiang University, Hangzhou 310027, China
| | - Yihu Song
- MOE Key Laboratory of Macromolecular Synthesis and Functionalization, Department of Polymer Science and Engineering, Zhejiang University, Hangzhou 310027, China
| | - Ziliang Wu
- MOE Key Laboratory of Macromolecular Synthesis and Functionalization, Department of Polymer Science and Engineering, Zhejiang University, Hangzhou 310027, China
| | - Qiang Zheng
- MOE Key Laboratory of Macromolecular Synthesis and Functionalization, Department of Polymer Science and Engineering, Zhejiang University, Hangzhou 310027, China
| |
Collapse
|
14
|
Zhao T, Cheng C, Wang D, Zhong D, Hao G, Liu G, Li J, Zhao Q. Preparation of a Bimetallic NiFe‐MOF on Nickel Foam as a Highly Efficient Electrocatalyst for Oxygen Evolution Reaction. ChemistrySelect 2021. [DOI: 10.1002/slct.202004504] [Citation(s) in RCA: 10] [Impact Index Per Article: 3.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/12/2022]
Affiliation(s)
- Tao Zhao
- College of Chemistry and Chemical Engineering Taiyuan University of Technology Taiyuan 030024 Shanxi P.R. China
- Shanxi Key Laboratory of Gas Energy Efficient and Clean Utilization Taiyuan 030024 Shanxi P.R. China
| | - Chen Cheng
- College of Chemistry and Chemical Engineering Taiyuan University of Technology Taiyuan 030024 Shanxi P.R. China
- Shanxi Key Laboratory of Gas Energy Efficient and Clean Utilization Taiyuan 030024 Shanxi P.R. China
| | - Dong Wang
- College of Chemistry and Chemical Engineering Taiyuan University of Technology Taiyuan 030024 Shanxi P.R. China
- Shanxi Key Laboratory of Gas Energy Efficient and Clean Utilization Taiyuan 030024 Shanxi P.R. China
| | - Dazhong Zhong
- College of Chemistry and Chemical Engineering Taiyuan University of Technology Taiyuan 030024 Shanxi P.R. China
- Shanxi Key Laboratory of Gas Energy Efficient and Clean Utilization Taiyuan 030024 Shanxi P.R. China
| | - Genyan Hao
- College of Chemistry and Chemical Engineering Taiyuan University of Technology Taiyuan 030024 Shanxi P.R. China
- Shanxi Key Laboratory of Gas Energy Efficient and Clean Utilization Taiyuan 030024 Shanxi P.R. China
| | - Guang Liu
- College of Chemistry and Chemical Engineering Taiyuan University of Technology Taiyuan 030024 Shanxi P.R. China
- Shanxi Key Laboratory of Gas Energy Efficient and Clean Utilization Taiyuan 030024 Shanxi P.R. China
| | - Jinping Li
- College of Chemistry and Chemical Engineering Taiyuan University of Technology Taiyuan 030024 Shanxi P.R. China
- Shanxi Key Laboratory of Gas Energy Efficient and Clean Utilization Taiyuan 030024 Shanxi P.R. China
| | - Qiang Zhao
- College of Chemistry and Chemical Engineering Taiyuan University of Technology Taiyuan 030024 Shanxi P.R. China
- Shanxi Key Laboratory of Gas Energy Efficient and Clean Utilization Taiyuan 030024 Shanxi P.R. China
| |
Collapse
|
15
|
Sviridova E, Li M, Barras A, Addad A, Yusubov MS, Zhdankin VV, Yoshimura A, Szunerits S, Postnikov PS, Boukherroub R. Aryne cycloaddition reaction as a facile and mild modification method for design of electrode materials for high-performance symmetric supercapacitor. Electrochim Acta 2021. [DOI: 10.1016/j.electacta.2020.137667] [Citation(s) in RCA: 4] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/22/2022]
|
16
|
Samuei S, Rezvani Z, Shomali A, Ülker E, Karadaş F. Preparation and Capacitance Properties of Graphene Quantum Dot/NiFe−Layered Double‐Hydroxide Nanocomposite. Eur J Inorg Chem 2020. [DOI: 10.1002/ejic.202000838] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/16/2022]
Affiliation(s)
- Sara Samuei
- Inorganic Chemistry Laboratory, Department of Chemistry, Faculty of Sciences Azarbaijan Shahid Madani University East Azarbaijan 5173865955 Tabriz Iran
| | - Zolfaghar Rezvani
- Inorganic Chemistry Laboratory, Department of Chemistry, Faculty of Sciences Azarbaijan Shahid Madani University Tabriz Iran
| | - Ashkan Shomali
- Department of Chemistry, Faculty of Sciences Azerbaijan Shahid Madani University Tabriz Iran
| | - Emine Ülker
- Department of Chemistry, Faculty of Arts & Science Recep Tayyip Erdogan University Turkey
| | | |
Collapse
|
17
|
Yang YJ. Acetamide-assisted hydrothermal growth of NiCo double hydroxide on graphene modified Ni foam for high-performance supercapacitor. J APPL ELECTROCHEM 2020. [DOI: 10.1007/s10800-020-01473-6] [Citation(s) in RCA: 8] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/28/2022]
|
18
|
Zhang G, Xuan H, Wang R, Guan Y, Li H, Liang X, Han P, Wu Y. Enhanced supercapacitive performance in Ni3S2/MnS composites via an ion-exchange process for supercapacitor applications. Electrochim Acta 2020. [DOI: 10.1016/j.electacta.2020.136517] [Citation(s) in RCA: 21] [Impact Index Per Article: 5.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/29/2022]
|
19
|
Sun Q, Yao K, Zhang Y. MnO2-directed synthesis of NiFe-LDH@FeOOH nanosheeet arrays for supercapacitor negative electrode. CHINESE CHEM LETT 2020. [DOI: 10.1016/j.cclet.2020.03.069] [Citation(s) in RCA: 6] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/24/2022]
|
20
|
Chen Z, Deng H, Zhang M, Yang Z, Hu D, Wang Y, Yan K. One-step facile synthesis of nickel-chromium layered double hydroxide nanoflakes for high-performance supercapacitors. NANOSCALE ADVANCES 2020; 2:2099-2105. [PMID: 36132524 PMCID: PMC9419058 DOI: 10.1039/d0na00178c] [Citation(s) in RCA: 7] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [Abstract] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 03/03/2020] [Accepted: 04/01/2020] [Indexed: 05/22/2023]
Abstract
Rational design and synthesis of efficient electrodes with pronounced energy storage properties are crucial for supercapacitors. Herein, we report thin NiCr-layered double hydroxide nanoflakes (NiCr-LDNs) for a high-performance supercapacitor. These fabricated NiCr-LDNs, with various Ni2+/Cr3+ ratios, are one-step controllably synthesized through ultrasonication coupled with mechanical agitation, without hydrothermal treatment or extra exfoliation using organic solvents. Through comparison of different Ni2+/Cr3+ ratios, the Ni2Cr1-LDNs with a 4.7 nm thickness exhibited a superb capacitance performance of 1525 F g-1 at 2 A g-1, which is competitive with most previously reported layered double hydroxide (LDH)-based electrodes. These thin nanoflake structures have the potential to reduce the energy barrier and enhance the capture ability of electrolyte ions. Besides, an asymmetric supercapacitor (ASC) assembled using Ni2Cr1-LDNs achieved a remarkable energy density of 55.22 W h kg-1 at a power density of 400 W kg-1 and maintained high specific capacitance (over 81%), even after 5000 cycles. This work offers an efficient and facile route to fabricating LDH nanoflakes for boosting energy storage capabilities.
Collapse
Affiliation(s)
- Zuo Chen
- School of Environmental Science and Engineering, Sun Yat-sen University 135 Xingang Xi Road Guangzhou 510275 P. R. China
| | - Hao Deng
- School of Environmental Science and Engineering, Sun Yat-sen University 135 Xingang Xi Road Guangzhou 510275 P. R. China
| | - Man Zhang
- School of Environmental Science and Engineering, Sun Yat-sen University 135 Xingang Xi Road Guangzhou 510275 P. R. China
| | - Zhiyu Yang
- School of Environmental Science and Engineering, Sun Yat-sen University 135 Xingang Xi Road Guangzhou 510275 P. R. China
| | - Di Hu
- School of Environmental Science and Engineering, Sun Yat-sen University 135 Xingang Xi Road Guangzhou 510275 P. R. China
| | - Yuchen Wang
- School of Environmental Science and Engineering, Sun Yat-sen University 135 Xingang Xi Road Guangzhou 510275 P. R. China
| | - Kai Yan
- School of Environmental Science and Engineering, Sun Yat-sen University 135 Xingang Xi Road Guangzhou 510275 P. R. China
- Guangdong Provincial Key Laboratory of Environmental Pollution Control and Remediation Technology Guangzhou 510275 P. R. China
| |
Collapse
|
21
|
Ma Y, Zhu X, Wang B, Liu S, Meng T, Chen H, Peng B, Deng Z. Sacrificial template synthesis of hierarchical nickel hydroxidenitrate hollow colloidal particles for electrochemical energy storage. Chem Eng Sci 2020. [DOI: 10.1016/j.ces.2020.115548] [Citation(s) in RCA: 8] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/25/2022]
|
22
|
Gao X, Wang P, Pan Z, Claverie JP, Wang J. Recent Progress in Two-Dimensional Layered Double Hydroxides and Their Derivatives for Supercapacitors. CHEMSUSCHEM 2020; 13:1226-1254. [PMID: 31797566 DOI: 10.1002/cssc.201902753] [Citation(s) in RCA: 30] [Impact Index Per Article: 7.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 10/09/2019] [Revised: 11/28/2019] [Indexed: 06/10/2023]
Abstract
High-performance supercapacitors have attracted great attention due to their high power, fast charging/discharging, long lifetime, and high safety. However, the generally low energy density and overall device performance of supercapacitors limit their applications. In recent years, the design of rational electrode materials has proven to be an effective pathway to improve the capacitive performances of supercapacitors. Layered double hydroxides (LDHs), have shown great potential in new-generation supercapacitors, due to their unique two-dimensional layered structures with a high surface area and tunable composition of the host layers and intercalation species. Herein, recent progress in LDH-based, LDH-derived, and composite-type electrode materials targeted for applications in supercapacitors, by tuning the chemical/metal composition, growth morphology, architectures, and device integration, is reviewed. The complicated relationships between the composition, morphology, structure, and capacitive performance are presented. A brief projection is given for the challenges and perspectives of LDHs for energy research.
Collapse
Affiliation(s)
- Xiaorui Gao
- School of Physics and Electronic Engineering, Changshu Institute of Technology, Changshu, Jiangsu, 215500, PR China
- Department of Materials Science and Engineering, National University of Singapore, Singapore, 117574, Singapore
| | - Peikui Wang
- Department of Chemistry, University of Sherbrooke, 2500, Boulevard de l'Universite, Sherbrooke, J1K 2R1, Québec, Canada
| | - Zhenghui Pan
- Department of Materials Science and Engineering, National University of Singapore, Singapore, 117574, Singapore
| | - Jerome P Claverie
- Department of Chemistry, University of Sherbrooke, 2500, Boulevard de l'Universite, Sherbrooke, J1K 2R1, Québec, Canada
| | - John Wang
- Department of Materials Science and Engineering, National University of Singapore, Singapore, 117574, Singapore
| |
Collapse
|
23
|
Zhang T, Lu Y, Wang J, Wang Z, Zhang W, Wang X, Su J, Guo L. Growth of NiMn layered double hydroxides on nanopyramidal BiVO 4 photoanode for enhanced photoelectrochemical performance. NANOTECHNOLOGY 2020; 31:115707. [PMID: 31747640 DOI: 10.1088/1361-6528/ab59ba] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/10/2023]
Abstract
Photoelectrochemical water oxidation for hydrogen generation via utilizing sunlight is considered a very promising pathway for generating sustainable energy in an environmental manner. Here, a composite photoanode, consisting of nanopyramidal BiVO4 arrays and one layered double hydroxide (NiMn-LDH) was designed and fabricated via a facile route. The obtained BiVO4/NiMn-LDH composite photoelectrode presented a significant enhancement in the photoelectrochemical (PEC) current density, conversion efficiency and stability for solar water oxidation. With 2D NiMn-LDH decoration, an obvious cathodic shift of ∼480 mV in the onset potential can be observed, and more than two times enhancement in photocurrent performance is achieved. The improvement in photoelectrochemical activity for BiVO4/NiMn-LDH composite photoanode can be attributed to the enhanced water-oxidation kinetics leading to the efficient separation, transfer and collection of charge carriers at the photoanode/electrolyte interface. The result demonstrates NiMn-LDH represents one of the active oxygen evolution catalysts (OECs) to improve the PEC activity of metal oxide photoanode.
Collapse
Affiliation(s)
- Tao Zhang
- International Research Center for Renewable Energy, State Key Laboratory of Multiphase Flow in Power Engineering, Xi'an Jiaotong University, Shaanxi 710049, People's Republic of China
| | | | | | | | | | | | | | | |
Collapse
|
24
|
Li M, Deng X, Xiang K, Liang Y, Zhao B, Hao J, Luo JL, Fu XZ. Value-Added Formate Production from Selective Methanol Oxidation as Anodic Reaction to Enhance Electrochemical Hydrogen Cogeneration. CHEMSUSCHEM 2020; 13:914-921. [PMID: 31808618 DOI: 10.1002/cssc.201902921] [Citation(s) in RCA: 26] [Impact Index Per Article: 6.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 10/23/2019] [Revised: 12/05/2019] [Indexed: 06/10/2023]
Abstract
Electrolytic overall water splitting is a promising approach to produce H2 , but its efficiency is severely limited by the sluggish kinetics of the oxygen evolution reaction (OER) and the low activity of current electrocatalysts. To solve these problems, in addition to the development of efficient precious-metal catalysts, an effective strategy is proposed to replace the OER by the selective methanol oxidation reaction. Ni-Co hydroxide [Nix Co1-x (OH)2 ] nanoarrays were obtained through a facile hydrothermal treatment as the bifunctional electrocatalysts for the co-electrolysis of methanol/water to produce H2 and value-added formate simultaneously. The electrocatalyst could catalyze selective methanol oxidation (≈1.32 V) with a significantly lower energy consumption (≈0.2 V less) than OER. Importantly, methanol was transformed exclusively to value-added formate with a high Faradaic efficiency (selectivity) close to 100 %. Specifically, a cell voltage of only approximately 1.5 V was required to generate a current density of 10 mA cm-2 . Furthermore, the Ni0.33 Co0.67 (OH)2 /Ni foam nanoneedle arrays presented an outstanding stability for overall co-electrolysis.
Collapse
Affiliation(s)
- Mei Li
- College of Materials Science and Engineering, Shenzhen University, 1066 Xueyuan Avenue, Shenzhen, 518055, Guangdong Province, P. R. China
| | - Xiaohui Deng
- College of Materials Science and Engineering, Shenzhen University, 1066 Xueyuan Avenue, Shenzhen, 518055, Guangdong Province, P. R. China
| | - Kun Xiang
- College of Materials Science and Engineering, Shenzhen University, 1066 Xueyuan Avenue, Shenzhen, 518055, Guangdong Province, P. R. China
| | - Yue Liang
- College of Materials Science and Engineering, Shenzhen University, 1066 Xueyuan Avenue, Shenzhen, 518055, Guangdong Province, P. R. China
| | - Bin Zhao
- College of Materials Science and Engineering, Shenzhen University, 1066 Xueyuan Avenue, Shenzhen, 518055, Guangdong Province, P. R. China
| | - Jie Hao
- College of Materials Science and Engineering, Shenzhen University, 1066 Xueyuan Avenue, Shenzhen, 518055, Guangdong Province, P. R. China
| | - Jing-Li Luo
- College of Materials Science and Engineering, Shenzhen University, 1066 Xueyuan Avenue, Shenzhen, 518055, Guangdong Province, P. R. China
- Department of Chemical and Materials Engineering, University of Alberta, Edmonton, Alberta, T6G 2G6, Canada
| | - Xian-Zhu Fu
- College of Materials Science and Engineering, Shenzhen University, 1066 Xueyuan Avenue, Shenzhen, 518055, Guangdong Province, P. R. China
| |
Collapse
|
25
|
Upadhyay KK, Bundaleska N, Abrashev M, Bundaleski N, Teodoro O, Fonseca I, de Ferro AM, Silva RP, Tatarova E, Montemor M. Free-standing N-Graphene as conductive matrix for Ni(OH)2 based supercapacitive electrodes. Electrochim Acta 2020. [DOI: 10.1016/j.electacta.2019.135592] [Citation(s) in RCA: 26] [Impact Index Per Article: 6.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/28/2022]
|
26
|
Lin Y, Yang Z, Cao D, Gong Y. Electro-deposition of nickel–iron nanoparticles on flower-like MnCo2O4 nanowires as an efficient bifunctional electrocatalyst for overall water splitting. CrystEngComm 2020. [DOI: 10.1039/c9ce01921a] [Citation(s) in RCA: 11] [Impact Index Per Article: 2.8] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
Abstract
The obtained NiFe–MnCo2O4/NFF electrode exhibited superior electrocatalytic performance and extraordinary durability for the OER, HER, and overall water splitting.
Collapse
Affiliation(s)
- Yu Lin
- School of Chemical Engineering and Technology
- North University of China
- Taiyuan
- China
| | - Zhi Yang
- School of Chemical Engineering and Technology
- North University of China
- Taiyuan
- China
| | - Duanlin Cao
- School of Chemical Engineering and Technology
- North University of China
- Taiyuan
- China
| | - Yaqiong Gong
- School of Chemical Engineering and Technology
- North University of China
- Taiyuan
- China
- State Key Laboratory of Coordination Chemistry
| |
Collapse
|
27
|
Zhang M, Song Y, Zhao X, Guo Y, Yang L, Xu S. Nanoneedle-decorated NiCo-layered double hydroxide microspheres tuned as high-efficiency electrodes for pseudocapacitors. CrystEngComm 2019. [DOI: 10.1039/c9ce01252d] [Citation(s) in RCA: 9] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/11/2022]
Abstract
Nanoneedle-decorated flower-like NiCo-LDH microspheres are tuned by varying the amounts of NH4F, providing tunable electrochemical performance for their use as electrodes for pseudocapacitors.
Collapse
Affiliation(s)
- Meng Zhang
- State Key Laboratory of Chemical Resource Engineering
- Beijing University of Chemical Technology
- Beijing 100029
- China
| | - Yajie Song
- State Key Laboratory of Chemical Resource Engineering
- Beijing University of Chemical Technology
- Beijing 100029
- China
| | - Xiaoying Zhao
- State Key Laboratory of Chemical Resource Engineering
- Beijing University of Chemical Technology
- Beijing 100029
- China
| | - Ying Guo
- State Key Laboratory of Chemical Resource Engineering
- Beijing University of Chemical Technology
- Beijing 100029
- China
| | - Lan Yang
- State Key Laboratory of Chemical Resource Engineering
- Beijing University of Chemical Technology
- Beijing 100029
- China
| | - Sailong Xu
- State Key Laboratory of Chemical Resource Engineering
- Beijing University of Chemical Technology
- Beijing 100029
- China
| |
Collapse
|