Yolk-shell m-SiO2@ Nitrogen doped carbon derived zeolitic imidazolate framework high efficient counter electrode for dye-sensitized solar cells

被引：21

作者：

Ahmed, Abdelaal. S. A. ^{[1
,2
]}

Xiang, Wanchun ^{[1
]}

Li, Ziying ^{[1
]}

Amiinu, Ibrahim Saana ^{[3
]}

Zhao, Xiujian ^{[1
]}

机构：

[1] Wuhan Univ Technol, State Key Lab Silicate Mat Architecture, Luoshi Rd, Wuhan 430070, Hubei, Peoples R China

[2] Al Azhar Univ, Dept Chem, Fac Sci, Assiut 71524, Egypt

[3] Wuhan Univ Technol, State Key Lab Adv Technol Mat Synth & Proc, Luoshi Rd, Wuhan 430070, Hubei, Peoples R China

来源：

ELECTROCHIMICA ACTA | 2018年 / 292卷

基金：

中国国家自然科学基金;

关键词：

Dye-sensitized solar cells; Counter electrode; Yolk-shell; m-SiO2@NC; PEDOT; PSS; METAL-ORGANIC FRAMEWORK; PT-FREE; POROUS CARBON; NANOPOROUS CARBON; LOW-COST; PERFORMANCE; COMPOSITE; NANOPARTICLES; CONVERSION; REDUCTION;

D O I：

10.1016/j.electacta.2018.09.150

中图分类号：

O646 [电化学、电解、磁化学];

学科分类号：

081704 ;

摘要：

Yolk-Shell m-SiO2@ Nitrogen doped carbon (NC) has been synthesized by carbonization of m-SiO2@ZIF-8 and dispersed in polystyrenesulfonate-doped poly (3, 4-ethylenedioxythiophene) (PEDOT: PSS) to prepare yolk-shell m-SiO2@NC-PEDOT: PSS composite as a counter electrode (CE) for dye-sensitized solar cells (DSSCs). The electrochemical studies confirmed that the yolk-shell m-SiO2@NC-PEDOT: PSS CE exhibits higher catalytic activity compared to (NC-PEDOT: PSS CE and pristine PEDOT: PSS. The DSSCs employing 5% yolk-shell m-SiO2@NC-PEDOT: PSS-PEDOT: PSS composite CE yield photoelectric conversion efficiency (PCE) of 10.01%, which is superior to that of conventional platinum CE (8.50%). Owing to the simple preparation method, low cost and high catalytic activity, the yolk-shell m-SiO2@NC-PEDOT: PSS can be used as efficient Pt-free CE in DSSCs. (C) 2018 Elsevier Ltd. All rights reserved.

引用

页码：276 / 284

页数：9

共 55 条

[1] Dye-sensitized solar cells based on poly (3,4-ethylenedioxythiophene) counter electrode derived from ionic liquids [J].