Thông tin chung
  English
  Đề tài NC khoa học
  Bài báo, báo cáo khoa học
  Hướng dẫn Sau đại học
  Sách và giáo trình
  Các học phần và môn giảng dạy
  Giải thưởng khoa học, Phát minh, sáng chế
  Khen thưởng
  Thông tin khác
  Tài liệu tham khảo
  Hiệu chỉnh
 
Số người truy cập: 112,298,152

 Tridimensional few-layer graphene-like structures from sugar-salt mixtures as high-performance supercapacitor electrodes
Tác giả hoặc Nhóm tác giả: Housseinou Ba, Wei Wang, Giulia Tuci, Sergey N. Pronkin, Caroline Weinberg, Lam Nguyen-Dinh, Giuliano Giambastiani, Cuong Pham-Huu
Nơi đăng: Materials Today Energy; Số: 10;Từ->đến trang: 118-125;Năm: 2018
Lĩnh vực: Khoa học công nghệ; Loại: Bài báo khoa học; Thể loại: Quốc tế
TÓM TẮT
This work describes a straightforward approach to the production of highly-performing and costeffective C-based materials for energy storage application while proposing an original and effective method to the control of the final material morphology. Indeed, robust few-layer graphene-like and highly open-cell structures have been prepared by a modified chemical activation procedure starting from costless sugar/salt mixtures. The as-prepared C-samples ensure high ion-accessible surface area and low ion transport resistance, two key features for the fabrication of effective electrochemical double layer supercapacitors. A selected sample from this series exhibits high specific capacitance (Cg) (312 and 234 F g1 at 0.5 and 50 A g1, respectively, in 0.5 M H2SO4), particularly at high current density values, along with excellent cycling stability and Cg retention for increasing charge-discharge rates
ABSTRACT
This work describes a straightforward approach to the production of highly-performing and costeffective C-based materials for energy storage application while proposing an original and effective method to the control of the final material morphology. Indeed, robust few-layer graphene-like and highly open-cell structures have been prepared by a modified chemical activation procedure starting from costless sugar/salt mixtures. The as-prepared C-samples ensure high ion-accessible surface area and low ion transport resistance, two key features for the fabrication of effective electrochemical double layer supercapacitors. A selected sample from this series exhibits high specific capacitance (Cg) (312 and 234 F g1 at 0.5 and 50 A g1, respectively, in 0.5 M H2SO4), particularly at high current density values, along with excellent cycling stability and Cg retention for increasing charge-discharge rates
© Đại học Đà Nẵng
 
 
Địa chỉ: 41 Lê Duẩn Thành phố Đà Nẵng
Điện thoại: (84) 0236 3822 041 ; Email: dhdn@ac.udn.vn