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Fructan from Polygonatum cyrtonema Hua as an eco-friendly corrosion inhibitor for mild steel in HCl media.
Zhang, Weiwei; Li, Hui-Jing; Chen, Liwei; Zhang, Siyi; Ma, Yongjian; Ye, Chen; Zhou, Yuanqing; Pang, Boyi; Wu, Yan-Chao.
Afiliação
  • Zhang W; School of Marine Science and Technology, Harbin Institute of Technology, Weihai 264209, PR China.
  • Li HJ; School of Marine Science and Technology, Harbin Institute of Technology, Weihai 264209, PR China. Electronic address: lihuijing@iccas.ac.cn.
  • Chen L; School of Marine Science and Technology, Harbin Institute of Technology, Weihai 264209, PR China.
  • Zhang S; School of Marine Science and Technology, Harbin Institute of Technology, Weihai 264209, PR China.
  • Ma Y; School of Marine Science and Technology, Harbin Institute of Technology, Weihai 264209, PR China.
  • Ye C; School of Marine Science and Technology, Harbin Institute of Technology, Weihai 264209, PR China.
  • Zhou Y; School of Marine Science and Technology, Harbin Institute of Technology, Weihai 264209, PR China.
  • Pang B; School of Marine Science and Technology, Harbin Institute of Technology, Weihai 264209, PR China.
  • Wu YC; School of Marine Science and Technology, Harbin Institute of Technology, Weihai 264209, PR China; Weihai Institute of Marine Biomedical Industrial Technology, Wendeng District, Weihai 264400, PR China. Electronic address: ycwu@iccas.ac.cn.
Carbohydr Polym ; 238: 116216, 2020 Jun 15.
Article em En | MEDLINE | ID: mdl-32299575
ABSTRACT
An effective and biodegradable polygonatum fructan (PF) from Polygonatum cyrtonema Hua was studied as an eco-friendly corrosion inhibitor for mild steel protection in 1 M HCl, whose inhibition performance was studied by weight loss tests, electrochemical techniques, and surface analysis techniques (SECM, FTIR). The experimental results showed that PF has outstanding inhibition performance for mild steel in hydrochloric acid, and the inhibition efficiency increased with the increase of its concentration and temperature. Polarization studies indicated that PF is a mixed-type corrosion inhibitor, and its adsorption mode conforms to Langmuir isotherm, mainly chemisorption. An adsorption-related protective inhibitor film formed on the surface of mild steel was verified and investigated based on its surface analysis and characterization. Quantum chemical analysis showed that the adsorption of PF on the surface of mild steel has obvious chemical properties.
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Texto completo: 1 Coleções: 01-internacional Base de dados: MEDLINE Assunto principal: Aço / Polygonatum / Frutanos Idioma: En Revista: Carbohydr Polym Ano de publicação: 2020 Tipo de documento: Article
Texto completo
Adicionar na Minha BVS
Imprimir
XML
PubMed Links
Buscar no Google

Texto completo: 1 Coleções: 01-internacional Base de dados: MEDLINE Assunto principal: Aço / Polygonatum / Frutanos Idioma: En Revista: Carbohydr Polym Ano de publicação: 2020 Tipo de documento: Article