Polyhedral NiCoSe2 synthesized via selenization of metal-organic framework for supercapacitors

Miao, Yidong; Sui, Yanwei; Zhang, Dongling; Qi, Jiqiu; Wei, Fuxiang; Meng, Qingkun; He, Yezeng; Sun, Zhi; Ren, Yaojian

doi:10.1016/j.matlet.2019.01.096

Cited by 53 publications

(26 citation statements)

References 9 publications

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“…Figure A shows the CV traces collected in 1 M KOH solution at a scan rate of 10 mV s −1 . It can be seen that both electrodes exhibit two pairs of well‐defined redox peaks correspond to the transition between Co 2+ /Co 3+ /Co 4+ and Ni 2+ /Ni 3+ couples inside the heterostructured interfaces during the electrochemical reaction in alkaline environment according to the described reactions (Equations 1–4) . This suggests a reasonable electron interaction among the Ni and Co species.…”

Section: Resultsmentioning

confidence: 76%

Heterostructured Nickel‐Cobalt Selenide Immobilized onto Porous Carbon Frameworks as an Advanced Anode Material for Urea Electrocatalysis

et al. 2019

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Transition-metal selenides based materials have recently aroused an increasing consideration in the field of energy reservation and conversion owing to their good electrochemical performance and low synthetic cost. Herein, multi-walled carbon nanotubes supported binary nickel cobalt selenide composite (NiÀ CoÀ Se/CNT) was prepared by a one-pot-hydrothermal method using hydrazine ions that enables the selenium to diffuse and react with the Ni-and Co-cations to form NiÀ CoÀ Se with a stable nanostructure onto the outer walls of the CNT platforms due to the coordination interaction between the metallic cations and surface oxygen-containing group of the conductive scaffolds. The electrochemical performances for urea oxidation reaction (UOR) are accessed in an alkaline medium by cyclic voltammetry (CV), chronopotentiometry (CA), and electrochemical impedancespectroscopy (EIS) tests. The asprepared NiÀ CoÀ Se/CNT hybrid presents an excellent electrocatalytic activity in terms of current density and onset potential due to synergistic effects of tubular CNT scaffolds, additional Co active sites, and electrochemically active NiOOH layer. The CNTs support markedly enhanced the electrocatalytic properties by providing a rapid mass transport for UOR because of their porous network architectures with a robust adhesion to the NiÀ CoÀ Se nanocrystals. Thus, the synthetic methodology synthetic methodology adopted here is entirely effective for constructing various metal selenide compounds in future.

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Section: Resultsmentioning

confidence: 76%

Heterostructured Nickel‐Cobalt Selenide Immobilized onto Porous Carbon Frameworks as an Advanced Anode Material for Urea Electrocatalysis

et al. 2019

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“…Accordingly,Ni/Co-ZIF-67 has been recently reported as ap recursor for the synthesis of NiCoSe 2 . [67] This material possesses apolyhedral structure and presents alarge specific area. Electrochemical characterization showed that this material possesses as pecific capacitance of 300.2 Fg À1 at ac urrent density of 1Ag À1 .M oreover,t he Ni/Co-ZIF-67derived material showed outstanding stability,a nd remarkably 100 %o ft he NiCoSe 2 electrode capacitance was maintained after 2000 cycles.…”

Section: Mof-derived Bimetallic Mixed-metal Chalcogenidesmentioning

confidence: 99%

Metal–Organic Framework Derived Bimetallic Materials for Electrochemical Energy Storage

et al. 2020

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Iran) and his MS degree in Inorganic Chemistry at Zanjan University (Iran). He obtained his PhD (2003) and started his independentc areer at Tarbiat Modares University,w here he has been aProfessor in the Department of Chemistry since 2012. In recent years he has spent sabbaticalsa t Northwestern University (with J. Hupp and O. Farha), UC-Berkeley (with O. Farha), and Düsseldorf University (with C. Janiak). His research interestsf ocus on coordination polymers and metal-organic frameworks.Scheme 2. Charge storage mechanisms in EDLCs, PCs and battery-like electrodes.

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“…Electrochemical characterization showed that this material possesses as pecific capacitance of 300.2 Fg À1 at ac urrent density of 1Ag À1 .M oreover,t he Ni/Co-ZIF-67derived material showed outstanding stability,a nd remarkably 100 %o ft he NiCoSe 2 electrode capacitance was maintained after 2000 cycles. [67]…”

Section: Mof-derived Bimetallic Mixed-metal Chalcogenidesmentioning

confidence: 99%

“…Accordingly, Ni/Co‐ZIF‐67 has been recently reported as a precursor for the synthesis of NiCoSe 2 [67] . This material possesses a polyhedral structure and presents a large specific area.…”

Section: Mof‐derived Bimetallic Electrode Materialsmentioning

confidence: 99%

Metal–Organic Framework Derived Bimetallic Materials for Electrochemical Energy Storage

et al. 2020

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Polyhedral NiCoSe2 synthesized via selenization of metal-organic framework for supercapacitors

Cited by 53 publications

References 9 publications

Heterostructured Nickel‐Cobalt Selenide Immobilized onto Porous Carbon Frameworks as an Advanced Anode Material for Urea Electrocatalysis

Heterostructured Nickel‐Cobalt Selenide Immobilized onto Porous Carbon Frameworks as an Advanced Anode Material for Urea Electrocatalysis

Metal–Organic Framework Derived Bimetallic Materials for Electrochemical Energy Storage

Metal–Organic Framework Derived Bimetallic Materials for Electrochemical Energy Storage

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