2D iron/cobalt metal-organic frameworks with an extended ligand for efficient oxygen evolution reaction

Wenjing Shang; Qiulin Li; Xiang Li; Ke Zhang; Binghao Wang; Yongbing Lou; Jinxi Chen

doi:10.1039/d3dt01175e

2D iron/cobalt metal-organic frameworks with an extended ligand for efficient oxygen evolution reaction

Wenjing Shang, Qiulin Li, Xiang Li, Ke Zhang, Binghao Wang, Yongbing Lou, Jinxi Chen^*

^*Corresponding author for this work

Southeast University, Nanjing

Research output: Contribution to journal › Article › peer-review

4 Citations (Scopus)

Abstract

The design of an efficient OER catalyst is significant for water splitting. Metal-organic frameworks (MOFs) are emerging as promising electrocatalysts due to their diversity of structure and tunability of function. In this paper, 2D Fe_xCo_1−x-MOF₁/NF with an extended ligand (biphenyl-4,4′-dicarboxylic acid, BPDC) is constructed on nickel foam by a solvothermal method. Compared with the MOF₂ synthesized by using BDC (1,4-bezenedicarboxylate), MOF₁ shows excellent performance. Among MOF₁, Fe_0.5Co_0.5-MOF₁/NF exhibits outstanding performance with a low overpotential (217 mV) and a small Tafel slope (31.16 mV Dec⁻¹) at 10 mA cm⁻² and performs well at a high current density. In addition, the catalyst is remarkable in terms of durability both in alkaline solution and simulated seawater. The synergetic effect between Fe and Co and more active sites exposed play an important role in improving the OER activity. This work provides an effective strategy for the rational design of MOFs as inexpensive electrocatalysts.

Original language	English
Pages (from-to)	8613-8619
Number of pages	7
Journal	Dalton Transactions
Volume	52
Issue number	25
DOIs	https://doi.org/10.1039/d3dt01175e
Publication status	Published - 19 May 2023
Externally published	Yes

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title = "2D iron/cobalt metal-organic frameworks with an extended ligand for efficient oxygen evolution reaction",

abstract = "The design of an efficient OER catalyst is significant for water splitting. Metal-organic frameworks (MOFs) are emerging as promising electrocatalysts due to their diversity of structure and tunability of function. In this paper, 2D FexCo1−x-MOF1/NF with an extended ligand (biphenyl-4,4′-dicarboxylic acid, BPDC) is constructed on nickel foam by a solvothermal method. Compared with the MOF2 synthesized by using BDC (1,4-bezenedicarboxylate), MOF1 shows excellent performance. Among MOF1, Fe0.5Co0.5-MOF1/NF exhibits outstanding performance with a low overpotential (217 mV) and a small Tafel slope (31.16 mV Dec−1) at 10 mA cm−2 and performs well at a high current density. In addition, the catalyst is remarkable in terms of durability both in alkaline solution and simulated seawater. The synergetic effect between Fe and Co and more active sites exposed play an important role in improving the OER activity. This work provides an effective strategy for the rational design of MOFs as inexpensive electrocatalysts.",

author = "Wenjing Shang and Qiulin Li and Xiang Li and Ke Zhang and Binghao Wang and Yongbing Lou and Jinxi Chen",

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language = "English",

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T1 - 2D iron/cobalt metal-organic frameworks with an extended ligand for efficient oxygen evolution reaction

AU - Shang, Wenjing

AU - Li, Qiulin

AU - Li, Xiang

AU - Zhang, Ke

AU - Wang, Binghao

AU - Lou, Yongbing

AU - Chen, Jinxi

PY - 2023/5/19

Y1 - 2023/5/19

N2 - The design of an efficient OER catalyst is significant for water splitting. Metal-organic frameworks (MOFs) are emerging as promising electrocatalysts due to their diversity of structure and tunability of function. In this paper, 2D FexCo1−x-MOF1/NF with an extended ligand (biphenyl-4,4′-dicarboxylic acid, BPDC) is constructed on nickel foam by a solvothermal method. Compared with the MOF2 synthesized by using BDC (1,4-bezenedicarboxylate), MOF1 shows excellent performance. Among MOF1, Fe0.5Co0.5-MOF1/NF exhibits outstanding performance with a low overpotential (217 mV) and a small Tafel slope (31.16 mV Dec−1) at 10 mA cm−2 and performs well at a high current density. In addition, the catalyst is remarkable in terms of durability both in alkaline solution and simulated seawater. The synergetic effect between Fe and Co and more active sites exposed play an important role in improving the OER activity. This work provides an effective strategy for the rational design of MOFs as inexpensive electrocatalysts.

AB - The design of an efficient OER catalyst is significant for water splitting. Metal-organic frameworks (MOFs) are emerging as promising electrocatalysts due to their diversity of structure and tunability of function. In this paper, 2D FexCo1−x-MOF1/NF with an extended ligand (biphenyl-4,4′-dicarboxylic acid, BPDC) is constructed on nickel foam by a solvothermal method. Compared with the MOF2 synthesized by using BDC (1,4-bezenedicarboxylate), MOF1 shows excellent performance. Among MOF1, Fe0.5Co0.5-MOF1/NF exhibits outstanding performance with a low overpotential (217 mV) and a small Tafel slope (31.16 mV Dec−1) at 10 mA cm−2 and performs well at a high current density. In addition, the catalyst is remarkable in terms of durability both in alkaline solution and simulated seawater. The synergetic effect between Fe and Co and more active sites exposed play an important role in improving the OER activity. This work provides an effective strategy for the rational design of MOFs as inexpensive electrocatalysts.

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AN - SCOPUS:85162094303

SN - 1477-9226

VL - 52

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EP - 8619

JO - Dalton Transactions

JF - Dalton Transactions

IS - 25

ER -

2D iron/cobalt metal-organic frameworks with an extended ligand for efficient oxygen evolution reaction

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