6533b85efe1ef96bd12bf491

RESEARCH PRODUCT

Polythiophenes as markers of asphalt and archaeological tar pitch aging. Characterization using solid-state electrochemistry

Adoración Martínez CarmonaMaria ÁNgeles Medina-alcaideMaria ÁNgeles Medina-alcaideGéssica Domingos Da SilveiraGéssica Domingos Da SilveiraVíctor M. Algarra-pardoLeandro Machado De CarvalhoAntonio Doménech-carbóTrinidad Pasíes-oviedoNoemí MontoyaDavid López-serrano

subject

Tar02 engineering and technology010402 general chemistry021001 nanoscience & nanotechnologyElectrochemistry01 natural sciencesArchaeology0104 chemical scienceslcsh:Chemistrychemistry.chemical_compoundchemistrylcsh:Industrial electrochemistrylcsh:QD1-999AsphaltElectrochemistryPolythiopheneDegradation (geology)0210 nano-technologyPhotodegradationOrganosulfur compoundsVoltammetrylcsh:TP250-261

description

The voltammetry of immobilized microparticles (VIMP) was used to characterize organosulfur components from ovens found at the Spanish archaeological sites of Cueva de Nerja (ca. 35,000cal BC), la Illeta dels Banyets (4th century BCE) and Gestalgar (12th–13th CE), and asphalt probes subjected to PAV and SUNTEST aging protocols. The voltammetric responses of the archaeological samples and the asphalt probes after photodegradation were quite similar, indicating the presence of polythiophene components which could act as age/degradation markers. Keywords: Voltammetry, Archaeology, Asphalt, Tar pitch, Organosulfur compounds

yearjournalcountryeditionlanguage
2018-02-01Electrochemistry Communications
10.1016/j.elecom.2017.12.020http://www.sciencedirect.com/science/article/pii/S1388248117303557