Self-assembled free-standing graphene oxide hybrid films modified by silane functionalized TiO2 nanotubes to increase their final Young's modulus

被引：5

作者：

Angel Garcia-Zuniga, Miguel ^{[1
]}

Tristan, Ferdinando ^{[1
]}

Judith Labrada-Delgado, Gladis ^{[2
]}

Fest-Carreno, Andres ^{[1
]}

Alcaraz-Caracheo, Alejandro ^{[3
]}

Meneses-Rodriguez, David ^{[4
]}

Magdalena Vega-Diaz, Sofia ^{[5
]}

机构：

[1] Tecnol Nacl Mexico Inst Tecnol Celaya, Dept Ingn Quim, Ave Tecnol Esq,Garcia Cubas S-N, Guanajuato 38010, Mexico

[2] LINAN IPICYT, Camino Presa San Jose 2055 Col Lomas 4 Secc, San Luis Potosi 78216, SLP, Mexico

[3] Tecnol Nacl Mexico Inst Tecnol Celaya, Dept Mecatron, Ave Tecnol Esq,Garcia Cubas S-N, Guanajuato 38010, Mexico

[4] Catedras CONACYT CINVESTAV, Merida Km 6,Carretera Antigua Progreso, Merida 97310, Yucatan, Mexico

[5] Tecnol Nacl Mexico Inst Tecnol Celaya, Catedras CONACYT, Ave Tecnol Esq,Garcia Cubas S-N, Guanajuato 38010, Mexico

来源：

MATERIALS CHEMISTRY AND PHYSICS | 2019年 / 231卷

关键词：

LARGE-AREA; MECHANICAL-PROPERTIES; NANOPARTICLES; FABRICATION; PHOTOCATALYSTS; COMPOSITES; EFFICIENT; SHEETS; ARRAYS;

D O I：

10.1016/j.matchemphys.2019.04.007

中图分类号：

T [工业技术];

学科分类号：

08 ;

摘要：

Free-standing hybrid films of graphene oxide (GO) and titanium dioxide nanotubes (TNT) were prepared trough a bar coating and drying method from GO-based dispersions. Successful chemical functionalization of the nanotubes with allyltriethoxysilane as a linker is confirmed by XPS and Raman spectroscopy. These resulting functionalized nanotubes were then used to prepare self-assembled hybrid films with GO in aqueous suspension. These hybrid films exhibit outstanding mechanical properties. The Young's modulus was as high as similar to 10 GPa (38% higher than the pristine graphene oxide film) and an ultimate tensile strength around similar to 40 MPa. The method presented here is versatile, and it can be easily coupled to fabricate other graphene-based hybrid films for applications, such as fuel-cells, photocatalysis, filters, amongst others.

引用

页码：114 / 120

页数：7

共 40 条

[1] Scanning atmospheric plasma for ultrafast reduction of graphene oxide and fabrication of highly conductive graphene films and patterns [J].