Thermal treatment induced transition from Zn3 (OH)2 (BDC) 2 (MOF-69c) to Zn4 O(BDC) 3 (MOF-5)

Jianwei Ren; Dave E.C. Rogers; Tshiamo Segakweng; Henrietta W. Langmia; Brian C. North; Mkhulu Mathe; Dmitri Bessarabov

doi:10.3139/146.110994

Thermal treatment induced transition from Zn₃ (OH)₂ (BDC) ₂ (MOF-6₉c) to Zn₄ O(BDC) ₃ (MOF-5)

Jianwei Ren, Dave E.C. Rogers, Tshiamo Segakweng, Henrietta W. Langmia, Brian C. North, Mkhulu Mathe, Dmitri Bessarabov

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

13 Citations (Scopus)

Abstract

A simple thermal treatment induced transition from Zn₃ (OH) ₂ (BDC)₂ (MOF-69c) to Zn₄ O(BDC)₃ (MOF-5) is reported. Phase crystallinity, pore characteristics and hydrogen storage capacities of the resulting crystals were investigated. It is shown that the structural transition from Zn₃ (OH)₂ (BDC) ₂ (MOF-69c) to Zn₄ O(BDC)₃ (MOF-5) could be induced by simply employing the optimal thermal treatment conditions of 200 8 C for 48 h in open air. The resultant relatively lower specific surface area of MOF-5 crystals compared to MOF-69c was in agreement with the increased pore diameter and decreased hydrogen storage capacity at 1 bar and 77 K.

Original language	English
Pages (from-to)	89-93
Number of pages	5
Journal	International Journal of Materials Research
Volume	105
Issue number	1
DOIs	https://doi.org/10.3139/146.110994
Publication status	Published - Jan 2014
Externally published	Yes

Keywords

Hydrogen adsorption
MOF-5
MOF-69c
Structural transition

ASJC Scopus subject areas

Condensed Matter Physics
Physical and Theoretical Chemistry
Metals and Alloys
Materials Chemistry

UN SDGs

This output contributes to the following UN Sustainable Development Goals (SDGs)

Access to Document

10.3139/146.110994

Cite this

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title = "Thermal treatment induced transition from Zn3 (OH)2 (BDC) 2 (MOF-69c) to Zn4 O(BDC) 3 (MOF-5)",

abstract = "A simple thermal treatment induced transition from Zn3 (OH) 2 (BDC)2 (MOF-69c) to Zn4 O(BDC)3 (MOF-5) is reported. Phase crystallinity, pore characteristics and hydrogen storage capacities of the resulting crystals were investigated. It is shown that the structural transition from Zn3 (OH)2 (BDC) 2 (MOF-69c) to Zn4 O(BDC)3 (MOF-5) could be induced by simply employing the optimal thermal treatment conditions of 200 8 C for 48 h in open air. The resultant relatively lower specific surface area of MOF-5 crystals compared to MOF-69c was in agreement with the increased pore diameter and decreased hydrogen storage capacity at 1 bar and 77 K.",

keywords = "Hydrogen adsorption, MOF-5, MOF-69c, Structural transition",

author = "Jianwei Ren and Rogers, {Dave E.C.} and Tshiamo Segakweng and Langmia, {Henrietta W.} and North, {Brian C.} and Mkhulu Mathe and Dmitri Bessarabov",

year = "2014",

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T1 - Thermal treatment induced transition from Zn3 (OH)2 (BDC) 2 (MOF-69c) to Zn4 O(BDC) 3 (MOF-5)

AU - Ren, Jianwei

AU - Rogers, Dave E.C.

AU - Segakweng, Tshiamo

AU - Langmia, Henrietta W.

AU - North, Brian C.

AU - Mathe, Mkhulu

AU - Bessarabov, Dmitri

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N2 - A simple thermal treatment induced transition from Zn3 (OH) 2 (BDC)2 (MOF-69c) to Zn4 O(BDC)3 (MOF-5) is reported. Phase crystallinity, pore characteristics and hydrogen storage capacities of the resulting crystals were investigated. It is shown that the structural transition from Zn3 (OH)2 (BDC) 2 (MOF-69c) to Zn4 O(BDC)3 (MOF-5) could be induced by simply employing the optimal thermal treatment conditions of 200 8 C for 48 h in open air. The resultant relatively lower specific surface area of MOF-5 crystals compared to MOF-69c was in agreement with the increased pore diameter and decreased hydrogen storage capacity at 1 bar and 77 K.

AB - A simple thermal treatment induced transition from Zn3 (OH) 2 (BDC)2 (MOF-69c) to Zn4 O(BDC)3 (MOF-5) is reported. Phase crystallinity, pore characteristics and hydrogen storage capacities of the resulting crystals were investigated. It is shown that the structural transition from Zn3 (OH)2 (BDC) 2 (MOF-69c) to Zn4 O(BDC)3 (MOF-5) could be induced by simply employing the optimal thermal treatment conditions of 200 8 C for 48 h in open air. The resultant relatively lower specific surface area of MOF-5 crystals compared to MOF-69c was in agreement with the increased pore diameter and decreased hydrogen storage capacity at 1 bar and 77 K.

KW - Hydrogen adsorption

KW - MOF-5

KW - MOF-69c

KW - Structural transition

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