Bui Thi Phuong Quynh Byun, Ji Young Kim, Sang Hoon 2024-01-19T22:31:34Z 2024-01-19T22:31:34Z 2021-09-03 2018-07 0013-4651 https://pubs.kist.re.kr/handle/201004/121226 This study aimed at investigating the electrochemical behavior of benzene and its substituted derivatives on nanoporous gold and assessing the possibility of utilizing this electrode as a platform for simultaneous detection of different aromatic compounds. Cyclic voltammetric studies were performed with benzene, hydroquinone, catechol, phenol, 2-aminophenol, 2-chlorophenol as well as their mixtures on the nanoporous gold prepared from dealloying of AuxSi1-x films. The nanoporous structure was found to provide enhanced electro-oxidation of hydroquinone, catechol, phenol, 2-aminophenol and 2-chlorophenol and remarkable fouling resistance in the electro-oxidation of phenol and 2-aminophenol compared to the compact and flat gold electrode. Interestingly, oxidation potentials of these aromatics appear to be affected significantly by the attachment of functional groups to the benzene ring. Based on the onset oxidation potentials, the easiness of oxidation at nanoporous gold was found to follow the order: hydroquinone > catechol > 2-aminophenol > 2-chlorophenol, phenol > benzene. Moreover, nanoporous gold was found to be advantageous over nanoporous platinum for potential application in simultaneous analysis employing voltammetric techniques as it could offer discernable peak potential separation in the electro-oxidation of the different aromatics. (C) 2018 The Electrochemical Society. English ELECTROCHEMICAL SOC INC DOPED DIAMOND ANODES PLATINUM THIN-FILMS CYCLIC VOLTAMMETRY CARBON ELECTRODE HIGH SELECTIVITY AQUEOUS-MEDIA OXIDATION HYDROQUINONE CATECHOL PHENOL Electrochemical Behavior of Aromatic Compounds on Nanoporous Gold Electrode Article 10.1149/2.0411810jes 1 JOURNAL OF THE ELECTROCHEMICAL SOCIETY, v.165, no.10, pp.B414 - B421 JOURNAL OF THE ELECTROCHEMICAL SOCIETY 165 10 B414 B421 scie scopus 000441061800053 2-s2.0-85053784840 Electrochemistry Materials Science, Coatings & Films Electrochemistry Materials Science Article DOPED DIAMOND ANODES PLATINUM THIN-FILMS CYCLIC VOLTAMMETRY CARBON ELECTRODE HIGH SELECTIVITY AQUEOUS-MEDIA OXIDATION HYDROQUINONE CATECHOL PHENOL