Electrocatalytic activity of Basolite (TM) F300 metal-organic-framework structures

K F Babu; M A Kulandainathan; I Katsounaros; Liza Rassaei; Andrew D Burrows; Paul R Raithby; Frank Marken

doi:10.1016/j.elecom.2010.02.017

Electrocatalytic activity of Basolite (TM) F300 metal-organic-framework structures

K F Babu, M A Kulandainathan, I Katsounaros, Liza Rassaei, Andrew D Burrows, Paul R Raithby, Frank Marken

Department of Chemistry

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

78 Citations (SciVal)

Abstract

For the case of the commercially available metal-organic framework (MOF) structure Basolite (TM) F300 or Fe (BTC) with BTC = benzene-1,3,5-tricarboxylate, it is shown that the Fe(III/II) electrochemistry is dominated by reductive dissolution rather than ion insertion (which in marked contrast is dominating the behaviour of Fe(III/I) open framework processes in Prussian blues). Solid Fe(BTC) immobilised onto graphite or platinum working electrodes is investigated and it is shown that well-defined and reversible Fe(III/II) reduction responses occur only on platinum and in the presence of aqueous acid. The process is shown to follow a CE-type mechanism involving liberation of Fe(III) in acidic media, in particular for high concentrations of acid. Effective electrocatalysis for the oxidation of hydroxide to O-2 (anodic water splitting) is observed in alkaline aqueous media after initial cycling of the potential into the reduction potential zone. A mechanism based on a MOF-surface confined hydrous iron oxide film is proposed.

Original language	English
Pages (from-to)	632-635
Number of pages	4
Journal	Electrochemistry Communications
Volume	12
Issue number	5
DOIs	https://doi.org/10.1016/j.elecom.2010.02.017
Publication status	Published - May 2010

Keywords

sensor
Prussian blue
water splitting
voltammetry
reductive dissolution
MOF
host guest electrochemistry

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10.1016/j.elecom.2010.02.017

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title = "Electrocatalytic activity of Basolite (TM) F300 metal-organic-framework structures",

abstract = "For the case of the commercially available metal-organic framework (MOF) structure Basolite (TM) F300 or Fe (BTC) with BTC = benzene-1,3,5-tricarboxylate, it is shown that the Fe(III/II) electrochemistry is dominated by reductive dissolution rather than ion insertion (which in marked contrast is dominating the behaviour of Fe(III/I) open framework processes in Prussian blues). Solid Fe(BTC) immobilised onto graphite or platinum working electrodes is investigated and it is shown that well-defined and reversible Fe(III/II) reduction responses occur only on platinum and in the presence of aqueous acid. The process is shown to follow a CE-type mechanism involving liberation of Fe(III) in acidic media, in particular for high concentrations of acid. Effective electrocatalysis for the oxidation of hydroxide to O-2 (anodic water splitting) is observed in alkaline aqueous media after initial cycling of the potential into the reduction potential zone. A mechanism based on a MOF-surface confined hydrous iron oxide film is proposed.",

keywords = "sensor, Prussian blue, water splitting, voltammetry, reductive dissolution, MOF, host guest electrochemistry",

author = "Babu, {K F} and Kulandainathan, {M A} and I Katsounaros and Liza Rassaei and Burrows, {Andrew D} and Raithby, {Paul R} and Frank Marken",

year = "2010",

month = may,

doi = "10.1016/j.elecom.2010.02.017",

language = "English",

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AU - Babu, K F

AU - Kulandainathan, M A

AU - Katsounaros, I

AU - Rassaei, Liza

AU - Burrows, Andrew D

AU - Raithby, Paul R

AU - Marken, Frank

PY - 2010/5

Y1 - 2010/5

N2 - For the case of the commercially available metal-organic framework (MOF) structure Basolite (TM) F300 or Fe (BTC) with BTC = benzene-1,3,5-tricarboxylate, it is shown that the Fe(III/II) electrochemistry is dominated by reductive dissolution rather than ion insertion (which in marked contrast is dominating the behaviour of Fe(III/I) open framework processes in Prussian blues). Solid Fe(BTC) immobilised onto graphite or platinum working electrodes is investigated and it is shown that well-defined and reversible Fe(III/II) reduction responses occur only on platinum and in the presence of aqueous acid. The process is shown to follow a CE-type mechanism involving liberation of Fe(III) in acidic media, in particular for high concentrations of acid. Effective electrocatalysis for the oxidation of hydroxide to O-2 (anodic water splitting) is observed in alkaline aqueous media after initial cycling of the potential into the reduction potential zone. A mechanism based on a MOF-surface confined hydrous iron oxide film is proposed.

AB - For the case of the commercially available metal-organic framework (MOF) structure Basolite (TM) F300 or Fe (BTC) with BTC = benzene-1,3,5-tricarboxylate, it is shown that the Fe(III/II) electrochemistry is dominated by reductive dissolution rather than ion insertion (which in marked contrast is dominating the behaviour of Fe(III/I) open framework processes in Prussian blues). Solid Fe(BTC) immobilised onto graphite or platinum working electrodes is investigated and it is shown that well-defined and reversible Fe(III/II) reduction responses occur only on platinum and in the presence of aqueous acid. The process is shown to follow a CE-type mechanism involving liberation of Fe(III) in acidic media, in particular for high concentrations of acid. Effective electrocatalysis for the oxidation of hydroxide to O-2 (anodic water splitting) is observed in alkaline aqueous media after initial cycling of the potential into the reduction potential zone. A mechanism based on a MOF-surface confined hydrous iron oxide film is proposed.

KW - sensor

KW - Prussian blue

KW - water splitting

KW - voltammetry

KW - reductive dissolution

KW - MOF

KW - host guest electrochemistry

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DO - 10.1016/j.elecom.2010.02.017

M3 - Article

VL - 12

SP - 632

EP - 635

JO - Electrochemistry Communications

JF - Electrochemistry Communications

SN - 1388-2481

IS - 5

ER -

Electrocatalytic activity of Basolite (TM) F300 metal-organic-framework structures

Abstract

Keywords

UN SDGs

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