Room temperature and aqueous synthesis of bimetallic ZIF derived CoNi layered double hydroxides and their applications in asymmetric supercapacitors

Tahir, Muhammad Usman; Arshad, Hina; Zhang, Heng; Hou, Zhiyan; Wang, Jide; Yang, Chao; Su, Xintai

doi:10.1016/j.jcis.2020.06.050

Cited by 83 publications

(28 citation statements)

References 47 publications

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“…After grinding for 30 min, the purple powder is eventually transformed into dark green, indicating that FeNiCo trimetallic material has been successfully synthesized under mechanical force. Based on this research and previous reports, [26–29] a possible synthesis mechanism was mentioned for the FeNiCo trimetallic material. Overall, considering the unstable nature of ZIF‐L under acidic conditions, [30] this reaction exhibited an etching‐coprecipitation process.…”

Section: Resultsmentioning

confidence: 56%

Synthesis of FeNiCo Ternary Hydroxides through Green Grinding Method with Metal‐Organic Frameworks as Precursors for Oxygen Evolution Reaction

Wang

et al. 2021

ChemSusChem

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Metal‐organic framework (MOF)‐derived materials have been widely applied to diversified fields until now due to their flexible processibility. Different kinds of suitable materials can be synthesized by varying MOF templates/precursors and synthesis methods. An appropriate method can skillfully fabricate the materials with excellent performance while meeting the environmentally friendly concept. In this work, a green and flexible grinding method was introduced to synthesize MOF‐derived FeNiCo trimetallic materials without solvent‐assistance, in which Co‐ZIF‐L was selected as a sacrificial precursor and Fe3+ and Ni2+ as etchants and dopants. Surprisingly, the as‐prepared FeNiCo ternary hydroxides supported on Ni foam (G‐FeNi‐Co‐ZIF‐L/NF) showed superior electrocatalytic performance for the oxygen evolution reaction (OER) with a low overpotential of 248 mV at 10 mA cm−2. This work provides a prospective approach to synthesize various MOF‐derived multi‐metallic materials, which also opens the door for syntheses of OER electrocatalysts.

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Section: Resultsmentioning

confidence: 56%

Synthesis of FeNiCo Ternary Hydroxides through Green Grinding Method with Metal‐Organic Frameworks as Precursors for Oxygen Evolution Reaction

Wang

et al. 2021

ChemSusChem

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“…Ultrathin LDH nanosheets and LDH particles usually cause serious aggregation, forming non-porous "stone like" particles with the size ranging from tens to several hundreds of microns, 108 which can lead to the deactivation of catalytic sites. Through meticulous design and preparation of catalysts with excellent structure, photogenerated electron-hole pairs can be easily separated, which is conducive to the production of excellent catalytic performance, 109,110 such as urchinlike, 84,96,111,112 flower-like, 113 nanocage-like 32,33,114 and so on. Using ZIF-67, An and colleagues synthesized NiCo-LDH with a unique hollow nanocage structure through a novel template method, named HC-NiCo-LDH.…”

Section: Ldh As a Catalyst In Its Own Rightmentioning

confidence: 99%

“…Various methods and strategies can be used to synthesize LDH catalysts with different morphologies, and their composition, particle size, surface defects and electronic properties can be adjusted to enhance their catalytic effects. The methods of synthesizing LDH include co-precipitation, 27,28 ion exchange, 7 hydrothermal, 29 mechanochemical, 30 sol-gel, 31 template synthesis 32,33 and so on. LDH can be used as a catalyst, catalyst precursor and catalyst carrier in a catalytic reaction owing to its excellent properties.…”

Section: Introductionmentioning

confidence: 99%

Research progress on photocatalytic reduction of CO₂ based on LDH materials

Guo

et al. 2022

Nanoscale

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“…The activated electrode material has more active sites, resulting in an increase in specific capacitance. [29,35] After 7000 charge/discharge cycles, the Co(OH)F@ NiCo-LDH composite exhibits a high capacitance retention of 92.7%. The stable cycling performance of the Co(OH)F@NiCo-LDH can be ascribed to its highly reversible redox reaction and well-defined multi-dimensional nanostructures.…”

Section: Wwwadvmatinterfacesdementioning

confidence: 99%

“…[30][31][32][33][34] As an indispensable member of MOFs, zeolite imidazole framework materials (ZIFs) have been proven to be a promising sacrificial template for constructing multi-dimensional nanostructures. For example, Tahir et al [35] prepared a 3D hollow CoNi-LDH nanocage by using CoNi-based ZIF as the sacrificial template. The resultant sample exhibited an outstanding discharge capacitance (657 C g −1 at 1 A g −1 ) and remarkable rate performance.…”

Section: Introductionmentioning

confidence: 99%

Constructing Co(OH)F Nanorods@NiCo‐LDH Nanocages Derived from ZIF‐67 for High‐Performance Supercapacitors

Zhang

Wang

et al. 2021

Adv Materials Inter

103

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The energy storage behavior of amorphous carbon is mostly dependent on the electrostatic interaction between the surface of the conducting electrode and the electrolytic ions. Therefore, the energy densities of commercial SCs are relatively low. [9] This essential defect seriously hinders the application of SCs in energy transformation system, so improving the energy density of them is an urgent problem. For this reason, a lot of pseudocapacitor materials with battery characteristics have been developed with the purpose of enhancing the energy density of SCs, including such as conjugated polymers [10,11] and transition metal compounds. [12,13] Transition-metal hydroxides are ideal pseudocapacitive materials for pseudocapacitors because of their large theoretical capacity. [14,15] Thus, intensive research work has been carried out to develop hydroxides with high pseudocapacitance performance. To date, a variety of low-cost hydroxides such as Ni(OH) 2 , [16,17] Co(OH) 2 , [18] CoAl-LDH, [19] CoFe-LDH, [20] NiMn-LDH, [21] NiCo-LDH, [22] and NiCu-LDH [23] have been widely investigated. However, these battery-type hydroxides usually possess poor electrical conductivity and relatively large volume changes during fast charge-discharge tests, thus leading to low cycling stability and poor rate capability. [24,25] The electronic conductivity and structural stability of layered double hydroxide (LDH) can be improved by heteroatomic doping. The heteroatom-doped LDH possesses large amounts of electronholes resulting from lattice distortion, thus increasing the electronic conductivity of LDH. Recently, Niu et al. [26] synthesized a N, C double-doped NiCo-LDH by hydrothermal reaction. The resultant sample exhibited an outstanding discharge capacitance of 606.9 C g −1 at 2 mV s −1 . In addition, N-C doping can greatly improve the rate capability and cycling stability.The logical microstructure design of transition-metal hydroxides at the nanoscale is another effective method to enhance the pseudocapacitance performance. [27] Among a variety of nanostructures, multi-dimensional nanostructures with welldefined inner void spaces and hierarchical nanocages can effectively avoid the self-aggregation of transition-metal hydroxides. The porous nanostructure is also appropriate for the infiltration of electrolyte ions and fast faraday reaction of active species. In addition, the nanocages are composed of interlaced ultrathin nanosheets, which possess rich electrochemically active sites and high superficial areas. Thus, the construction of

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Room temperature and aqueous synthesis of bimetallic ZIF derived CoNi layered double hydroxides and their applications in asymmetric supercapacitors

Cited by 83 publications

References 47 publications

Synthesis of FeNiCo Ternary Hydroxides through Green Grinding Method with Metal‐Organic Frameworks as Precursors for Oxygen Evolution Reaction

Synthesis of FeNiCo Ternary Hydroxides through Green Grinding Method with Metal‐Organic Frameworks as Precursors for Oxygen Evolution Reaction

Research progress on photocatalytic reduction of CO₂ based on LDH materials

Constructing Co(OH)F Nanorods@NiCo‐LDH Nanocages Derived from ZIF‐67 for High‐Performance Supercapacitors

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Room temperature and aqueous synthesis of bimetallic ZIF derived CoNi layered double hydroxides and their applications in asymmetric supercapacitors

Cited by 83 publications

References 47 publications

Synthesis of FeNiCo Ternary Hydroxides through Green Grinding Method with Metal‐Organic Frameworks as Precursors for Oxygen Evolution Reaction

Synthesis of FeNiCo Ternary Hydroxides through Green Grinding Method with Metal‐Organic Frameworks as Precursors for Oxygen Evolution Reaction

Research progress on photocatalytic reduction of CO2 based on LDH materials

Constructing Co(OH)F Nanorods@NiCo‐LDH Nanocages Derived from ZIF‐67 for High‐Performance Supercapacitors

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Research progress on photocatalytic reduction of CO₂ based on LDH materials