Mercury capture on a supported chlorocuprate(II) ionic liquid adsorbent studied using operando synchrotron X-ray absorption spectroscopy

Roberto Boada, Giannantonio Cibin, Fergal Coleman, Sofia Diaz-Moreno, Diego Gianolio, Christopher Hardacre, Shusaku Hayama, John D. Holbrey, Rafin Ramli, Kenneth R. Seddon, Geetha Srinivasan, Malgorzata Swadzba-Kwasny

Research output: Contribution to journalArticle

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Abstract

Mercury scrubbing from gas streams using a supported 1-butyl-3-methylimidazolium chlorocuprate(II) ionic liquid ([C4mim]2[Cu2Cl6]) has been studied using operando EXAFS. Initial oxidative capture as [HgCl3]– anions was confirmed, this was then followed by the unanticipated generation of mercury(I) chloride through comproportionation with additional mercury from the gas stream. Combining these two mechanisms leads to net one electron oxidative extraction of mercury from the gas with increased potential capacity and efficiency for supported ionic liquid mercury scrubbers.
Original languageEnglish
Pages (from-to)18946-18953
Number of pages8
JournalDalton Transactions
Volume45
Issue number47
Early online date09 Nov 2016
DOIs
Publication statusPublished - 2016

Fingerprint

Ionic Liquids
X ray absorption spectroscopy
adsorbents
Synchrotrons
Mercury
Adsorbents
absorption spectroscopy
synchrotrons
gas streams
Gases
liquids
x rays
scrubbers
Scrubbers
washing
Anions
chlorides
anions
Electrons
gases

Keywords

  • Mercury
  • ionic liquid
  • EXAFS
  • HycaPure

Cite this

Boada, Roberto ; Cibin, Giannantonio ; Coleman, Fergal ; Diaz-Moreno, Sofia ; Gianolio, Diego ; Hardacre, Christopher ; Hayama, Shusaku ; Holbrey, John D. ; Ramli, Rafin ; Seddon, Kenneth R. ; Srinivasan, Geetha ; Swadzba-Kwasny, Malgorzata. / Mercury capture on a supported chlorocuprate(II) ionic liquid adsorbent studied using operando synchrotron X-ray absorption spectroscopy. In: Dalton Transactions. 2016 ; Vol. 45, No. 47. pp. 18946-18953.
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Mercury capture on a supported chlorocuprate(II) ionic liquid adsorbent studied using operando synchrotron X-ray absorption spectroscopy. / Boada, Roberto; Cibin, Giannantonio; Coleman, Fergal; Diaz-Moreno, Sofia; Gianolio, Diego; Hardacre, Christopher; Hayama, Shusaku; Holbrey, John D.; Ramli, Rafin; Seddon, Kenneth R.; Srinivasan, Geetha; Swadzba-Kwasny, Malgorzata.

In: Dalton Transactions, Vol. 45, No. 47, 2016, p. 18946-18953.

Research output: Contribution to journalArticle

TY - JOUR

T1 - Mercury capture on a supported chlorocuprate(II) ionic liquid adsorbent studied using operando synchrotron X-ray absorption spectroscopy

AU - Boada, Roberto

AU - Cibin, Giannantonio

AU - Coleman, Fergal

AU - Diaz-Moreno, Sofia

AU - Gianolio, Diego

AU - Hardacre, Christopher

AU - Hayama, Shusaku

AU - Holbrey, John D.

AU - Ramli, Rafin

AU - Seddon, Kenneth R.

AU - Srinivasan, Geetha

AU - Swadzba-Kwasny, Malgorzata

PY - 2016

Y1 - 2016

N2 - Mercury scrubbing from gas streams using a supported 1-butyl-3-methylimidazolium chlorocuprate(II) ionic liquid ([C4mim]2[Cu2Cl6]) has been studied using operando EXAFS. Initial oxidative capture as [HgCl3]– anions was confirmed, this was then followed by the unanticipated generation of mercury(I) chloride through comproportionation with additional mercury from the gas stream. Combining these two mechanisms leads to net one electron oxidative extraction of mercury from the gas with increased potential capacity and efficiency for supported ionic liquid mercury scrubbers.

AB - Mercury scrubbing from gas streams using a supported 1-butyl-3-methylimidazolium chlorocuprate(II) ionic liquid ([C4mim]2[Cu2Cl6]) has been studied using operando EXAFS. Initial oxidative capture as [HgCl3]– anions was confirmed, this was then followed by the unanticipated generation of mercury(I) chloride through comproportionation with additional mercury from the gas stream. Combining these two mechanisms leads to net one electron oxidative extraction of mercury from the gas with increased potential capacity and efficiency for supported ionic liquid mercury scrubbers.

KW - Mercury

KW - ionic liquid

KW - EXAFS

KW - HycaPure

U2 - 10.1039/c6dt03014a

DO - 10.1039/c6dt03014a

M3 - Article

VL - 45

SP - 18946

EP - 18953

JO - Dalton transactions (Cambridge, England : 2003)

JF - Dalton transactions (Cambridge, England : 2003)

SN - 1477-9226

IS - 47

ER -