Tìm kiếm

Tiêu chí lọc:


Tiêu chí lọc:


Tác giả

Chủ đề

Năm xuất bản

Toàn văn

Kết quả tìm kiếm

Hiện thị kết quả từ 1 đến 1 của 1
  • <<
  • 1
  • >>
    • Effect of ferric ion [Fe3+] and [Fe2+] on SO2 adsorption ability of γ-Fe2O3 nanoparticles for mass-type gas sensors
    Tác giả : Nguyen Thanh Vinh; Tran Van Dang; Bui Thi Hang; Anh-Tuan Le; Nguyen Tri Tuan; Le Khanh Vinh; Nguyen Van Quy;  Người hướng dẫn: -;  Đồng tác giả: - (2021)

    The sensing material plays a very important role in determining the sensing properties of a gas sensor. In order to synthesise the sensing material, the precursors have a large effect on the properties of the sensing material. In this study, three types of γ-Fe2O3 nanoparticles were prepared with different ferric ion concentrations of [Fe3+] and [Fe2+] as precursors, by a typical facile chemical precipitation process and a following annealing treatment. A mass-type gas sensor was fabricated by using a quartz crystal microbalance (QCM) coated with various γ-Fe2O3 nanoparticles. The morphology, crystallisation, and gas adsorption characteristics of the γ-Fe2O3 nanoparticles were investigated. The effect of ferric ion concentrations of [Fe3+] and [Fe2+] on sensing properties is discuss...