title: Degradation of lindane and hexachlorobenzene in supercritical carbon dioxide using palladium nanoparticles stabilized in microcellular high-density polyethylene.
abstract: Palladium nanoparticles stabilized in microcellular high-density polyethylene prepared through supercritical foaming, supercritical impregnation, and H2 reduction are used for the hydrodechlorination of lindane and hexachlorobenzene in supercritical carbon dioxide below 100 °C. Both lindane and hexachlorobenzene can be almost 100% transformed to cyclohexane in 1 h. Reaction intermediates, such as lower chlorinated products or benzene, are not observed or exist in trace amount indicating that most of them may undergo reactions without leaving the metal surface.
authors.affiliation: Department of Chemistry, National Dong-Hua University, Hualien, 97401, Taiwan, ROC.
authors.forename: Bei-Zen
authors.initials: BZ
authors.lastname: Wu
authors.affiliation: Department of Chemistry, National Dong-Hua University, Hualien, 97401, Taiwan, ROC.
authors.forename: GuanYu
authors.initials: G
authors.lastname: Chen
authors.affiliation: Department of Chemistry, Chung Yuan Christian University, Chung Li, Taoyuan, 32023, Taiwan, ROC.
authors.forename: HwaKwang
authors.initials: H
authors.lastname: Yak
authors.affiliation: Department of Chemistry, National Dong-Hua University, Hualien, 97401, Taiwan, ROC. Electronic address: liao1427@alumni.uidaho.edu.
authors.forename: Weisheng
authors.initials: W
authors.lastname: Liao
authors.affiliation: Department of Chemistry, National Dong-Hua University, Hualien, 97401, Taiwan, ROC. Electronic address: ckh@mail.ndhu.edu.tw.
authors.forename: KongHwa
authors.initials: K
authors.lastname: Chiu
authors.affiliation: Department of Chemistry, National Taiwan University, Taipei, 10617, Taiwan, ROC.
authors.forename: Shie-Ming
authors.initials: SM
authors.lastname: Peng
mesh_terms: D002245:Carbon Dioxide / Q000737:chemistry; D002384:Catalysis; D006581:Hexachlorobenzene / Q000737:chemistry*; D001556:Hexachlorocyclohexane / Q000737:chemistry*; D053768:Metal Nanoparticles / Q000737:chemistry*; D010165:Palladium / Q000737:chemistry*; D020959:Polyethylene / Q000737:chemistry
chemical_list: D002245:Carbon Dioxide; D006581:Hexachlorobenzene; D001556:Hexachlorocyclohexane; D010165:Palladium; D020959:Polyethylene
keywords: Hexachlorobenzene; Hydrodechlorination; Lindane; Metal nanoparticles; Microcellular polyolefins; Supercritical carbon dioxide