In situ synthesis of hierarchical NiCo-MOF@Ni1−xCox(OH)2 heterostructures for enhanced pseudocapacitor and oxygen evolution reaction performances

Chong Jiang; Shuang Li; Bo Li; Shan Liu; Wen-Wen Dong; Ya-Pan Wu; Zheng-Fang Tian; Qichun Zhang; Dong-Sheng Li

doi:10.1039/d0dt03872e

In situ synthesis of hierarchical NiCo-MOF@Ni_1−xCo_x(OH)₂heterostructures for enhanced pseudocapacitor and oxygen evolution reaction performances

Chong Jiang, Shuang Li^*, Bo Li, Shan Liu, Wen-Wen Dong, Ya-Pan Wu, Zheng-Fang Tian, Qichun Zhang^*, Dong-Sheng Li^*

^*Corresponding author for this work

Department of Materials Science and Engineering

Research output: Journal Publications and Reviews › RGC 21 - Publication in refereed journal › peer-review

32 Citations (Scopus)

Abstract

Integrating the merits of different components to construct heterostructures for energy storage and conversion has attracted intensive attention. Herein, taking advantage of bimetallic MOFs and transition bimetal hydroxide, we have successfully used nanoflower-like Ni_1−xCo_x(OH)₂as both the precursor and template to in situ construct three dimensional (3D)
NiCo-MOF@Ni_1−xCo_x(OH)₂(denoted as MOF@TMH) hierarchical heterostructures. Benefiting from the optimized composition with hierarchical heterostructures assembled by ultrathin nanosheets, MOF@TMH-2 possesses rich effective active sites and high electrochemical reactivity, delivering superior pseudocapacitor performance with a specific capacitance of 1855.3 F g⁻¹at 2 A g⁻¹and good rate performance. Besides, MOF@TMH-2 also exhibits excellent OER activity with small overpotentials of 193 mV and 310 mV at 10 and 100 mA cm⁻², respectively.

Original language	English
Pages (from-to)	3060-3066
Journal	Dalton Transactions
Volume	50
Issue number	8
Online published	1 Feb 2021
DOIs	https://doi.org/10.1039/d0dt03872e
Publication status	Published - 28 Feb 2021

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@article{91e10bc013444f1fbe7185504cc37d25,

title = "In situ synthesis of hierarchical NiCo-MOF@Ni1−xCox(OH)2 heterostructures for enhanced pseudocapacitor and oxygen evolution reaction performances",

abstract = "Integrating the merits of different components to construct heterostructures for energy storage and conversion has attracted intensive attention. Herein, taking advantage of bimetallic MOFs and transition bimetal hydroxide, we have successfully used nanoflower-like Ni1−xCox(OH)2 as both the precursor and template to in situ construct three dimensional (3D) NiCo-MOF@Ni1−xCox(OH)2 (denoted as MOF@TMH) hierarchical heterostructures. Benefiting from the optimized composition with hierarchical heterostructures assembled by ultrathin nanosheets, MOF@TMH-2 possesses rich effective active sites and high electrochemical reactivity, delivering superior pseudocapacitor performance with a specific capacitance of 1855.3 F g−1 at 2 A g−1 and good rate performance. Besides, MOF@TMH-2 also exhibits excellent OER activity with small overpotentials of 193 mV and 310 mV at 10 and 100 mA cm−2, respectively.",

author = "Chong Jiang and Shuang Li and Bo Li and Shan Liu and Wen-Wen Dong and Ya-Pan Wu and Zheng-Fang Tian and Qichun Zhang and Dong-Sheng Li",

year = "2021",

month = feb,

day = "28",

doi = "10.1039/d0dt03872e",

language = "English",

volume = "50",

pages = "3060--3066",

journal = "Dalton Transactions",

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publisher = "Royal Society of Chemistry",

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TY - JOUR

T1 - In situ synthesis of hierarchical NiCo-MOF@Ni1−xCox(OH)2 heterostructures for enhanced pseudocapacitor and oxygen evolution reaction performances

AU - Jiang, Chong

AU - Li, Shuang

AU - Li, Bo

AU - Liu, Shan

AU - Dong, Wen-Wen

AU - Wu, Ya-Pan

AU - Tian, Zheng-Fang

AU - Zhang, Qichun

AU - Li, Dong-Sheng

PY - 2021/2/28

Y1 - 2021/2/28

N2 - Integrating the merits of different components to construct heterostructures for energy storage and conversion has attracted intensive attention. Herein, taking advantage of bimetallic MOFs and transition bimetal hydroxide, we have successfully used nanoflower-like Ni1−xCox(OH)2 as both the precursor and template to in situ construct three dimensional (3D) NiCo-MOF@Ni1−xCox(OH)2 (denoted as MOF@TMH) hierarchical heterostructures. Benefiting from the optimized composition with hierarchical heterostructures assembled by ultrathin nanosheets, MOF@TMH-2 possesses rich effective active sites and high electrochemical reactivity, delivering superior pseudocapacitor performance with a specific capacitance of 1855.3 F g−1 at 2 A g−1 and good rate performance. Besides, MOF@TMH-2 also exhibits excellent OER activity with small overpotentials of 193 mV and 310 mV at 10 and 100 mA cm−2, respectively.

AB - Integrating the merits of different components to construct heterostructures for energy storage and conversion has attracted intensive attention. Herein, taking advantage of bimetallic MOFs and transition bimetal hydroxide, we have successfully used nanoflower-like Ni1−xCox(OH)2 as both the precursor and template to in situ construct three dimensional (3D) NiCo-MOF@Ni1−xCox(OH)2 (denoted as MOF@TMH) hierarchical heterostructures. Benefiting from the optimized composition with hierarchical heterostructures assembled by ultrathin nanosheets, MOF@TMH-2 possesses rich effective active sites and high electrochemical reactivity, delivering superior pseudocapacitor performance with a specific capacitance of 1855.3 F g−1 at 2 A g−1 and good rate performance. Besides, MOF@TMH-2 also exhibits excellent OER activity with small overpotentials of 193 mV and 310 mV at 10 and 100 mA cm−2, respectively.

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U2 - 10.1039/d0dt03872e

DO - 10.1039/d0dt03872e

M3 - RGC 21 - Publication in refereed journal

SN - 1477-9226

VL - 50

SP - 3060

EP - 3066

JO - Dalton Transactions

JF - Dalton Transactions

IS - 8

ER -