Abstract

The peculiar architecture of a novel class of anisotropic TiO 2(B) nanocrystals, which were synthesized by an surfactant-assisted nonaqueous sol-gel route, was profitably exploited to fabricate highly efficient mesoporous electrodes for Li storage. These electrodes are composed of a continuous spongy network of interconnected nanoscale units with a rod-shaped profile that terminates into one or two bulgelike or branch-shaped apexes spanning areas of about 5 × 10 nm2. This architecture transcribes into a superior cycling performance (a charge capacitance of 222 mAh g-1 was achieved by a carbon-free TiO2(B)-nanorods-based electrode vs 110 mAh g-1 exhibited by a comparable TiO 2-anatase electrode) and good chemical stability (more than 90% of the initial capacity remains after 100 charging/discharging cycles). Their outstanding lithiation/delithiation capabilities were also exploited to fabricate electrochromic devices that revealed an excellent coloration efficiency (130 cm2 C-1 at 800 nm) upon the application of 1.5 V as well as an extremely fast electrochromic switching (coloration time ∼5 s)

Autore Pugliese

• Cozzoli Pantaleo Davide , Gigli Giuseppe

Tutti gli autori

• R. Giannuzzi , M. Manca , L. De Marco , M. R. Belviso , A. Cannavale , T. Sibillano , C. Giannini , P.D. Cozzoli , G. Gigli

Titolo volume/Rivista

ACS APPLIED MATERIALS & INTERFACES

Anno di pubblicazione

2014

ISSN

1944-8244

ISBN

Non Disponibile

Numero di citazioni Wos

Nessuna citazione

Ultimo Aggiornamento Citazioni

Non Disponibile

Numero di citazioni Scopus

41

Ultimo Aggiornamento Citazioni

28/04/2018

Settori ERC

Non Disponibile

Codici ASJC

Non Disponibile