title: Formation of metallic mercury during photodegradation/photodarkening of α-HgS: electrochemical evidence.
authors.affiliation: Environmental Analysis, University of Antwerp, Groenenborgerlaan 171, 2020 Antwerp (Belgium); Antwerp X-ray imaging and instrumentation laboratory University of Antwerp, Groenenborgerlaan 171, 2020 Antwerp (Belgium).
authors.forename: Willemien
authors.initials: W
authors.lastname: Anaf
authors.forename: Koen
authors.initials: K
authors.lastname: Janssens
authors.forename: Karolien
authors.initials: K
authors.lastname: De Wael
keywords: degradation; electrochemistry; mercury sulfide; pigments; vermilion