Release Time:2019-03-12  Hits:

Indexed by: Journal Article

Date of Publication: 2018-11-01

Journal: SOLAR ENERGY

Included Journals: SCIE

Volume: 174

Page Number: 225-230

ISSN: 0038-092X

Key Words: Metal-organic frameworks; Co@N-doped carbon nanotubes; Dye-sensitized solar cells; Counter electrode; Electrocatalytic activity

Abstract: We report the synthesis of efficient noble metal-free counter electrode materials, Co@N-doped carbon nanotubes by one-step direct pyrolysis of ZIF-67 metal-organic framework under hydrogen atmosphere. It has been demonstrated that the dye-sensitized solar cell using Co@N-doped carbon nanotubes as counter electrode exhibits the best power conversion efficiency of 8.18% than that of 7.54% using Pt counter electrode due to its excellent electrocatalytic activity towards the reduction of I-/I-3(-). The results indicate the enormous potential of Co@N-doped carbon nanotubes in commercialization of low cost DSSCs.