Abrasive Stripping Voltammetric Studies of Lignin and Lignin Model Compounds |
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| Authors: | Aicheng Chen Emma I Rogers Richard G Compton |
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| Institution: | 1. Department of Chemistry, Lakehead University, 955 Oliver Road, Thunder Bay, Ontario P7B?5E1, Canada;2. Department of Chemistry, Physical and Theoretical Chemistry Laboratory, Oxford University, South Parks Road, Oxford OX1?3QZ, UK |
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| Abstract: | Lignin is potentially a major renewable, nonfossil source of aromatic and cyclohexyl compounds. In this study, we have investigated the abrasive stripping voltammetry of lignin and four lignin model compounds in the room temperature ionic liquids (RTILs) C4mim]NTf2], N6,2,2,2]NTf2] and C4mim]OTf] (where C4mim]+=1‐butyl‐3‐methylimidazolium, N6,2,2,2]+=n‐hexyltriethylammonium, NTf2]?=bis(trifluoromethanesulfonyl)imide and OTf]? =trifluoromethanesulfonate) on a gold macrodisk and in 0.1 M H2SO4 and 0.1 M NaOH on a boron‐doped diamond (BDD) macroelectrode, with the hope of using the voltammetry to fingerprint the functional groups within the lignin molecule. The use of RTILs on metal electrodes, or either acidic or basic media in combination with BDD electrodes allows solvent systems with wide electrochemical potential windows, useful for studying voltammetry which may be difficult to observe in systems where early breakdown of the solvent occurs. |
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| Keywords: | Abrasive stripping voltammetry Room temperature ionic liquids Lignin Lignin model compounds Boron‐doped diamond electrode |
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