✦ LIBER ✦

Synthesis of silica: Metals nanocomposites and modification of their structure by swift heavy ion irradiation

✍ Scribed by J.C. Pivin; F. Singh; Y. Mishra; D.K. Avasthi; J.P. Stoquert

Publisher: Elsevier Science
Year: 2009
Tongue: English
Weight: 426 KB
Volume: 203
Category: Article
ISSN: 0257-8972
DOI: 10.1016/j.surfcoat.2009.02.033

No coin nor oath required. For personal study only.

✦ Synopsis

Ions with energies larger than 100 keV/amu produce high densities of electronic excitations in narrow cylindrical volumes around their path. The perturbation of the electronic system is transferred to the atomic network, leading to structural transformations such as the nucleation of metal particles in glasses and to changes in the particle size, shape or spatial distribution in nanocomposites. Results of our group concerning irradiation effects in silica-metal composites are discussed in terms of thermal spikes and hammering mechanisms.

📜 SIMILAR VOLUMES

Structural modification of C-doped SiO2

Structural modification of C-doped SiO2 induced by swift heavy ion irradiations

✍ Z.G. Wang; Z.M. Zhao; A. Benyagoub; M. Toulemonde; F. Levesque; Y. Song; Y.F. Ji 📂 Article 📅 2007 🏛 Elsevier Science 🌐 English ⚖ 388 KB

Thermally grown amorphous SiO 2 samples were implanted at room temperature (RT) with 120 keV C-ions to a dose ranging from 1.0 • 10 16 to 8.6 • 10 17 C ions/cm 2 , then irradiated at RT with 950 MeV Pb, 345 or 1754 MeV Xe ions to a fluence in the region from 1.0 • 10 11 to 3.8 • 10 12 ions/cm 2 , re

Barrier height modification of Au/n-Si S

Barrier height modification of Au/n-Si Schottky structures by swift heavy ion irradiation

✍ Sandeep Kumar; D. Kanjilal 📂 Article 📅 2006 🏛 Elsevier Science 🌐 English ⚖ 127 KB

Swift heavy ion beam irradiation induced

Swift heavy ion beam irradiation induced modifications in structural, morphological and optical properties of CdS thin films

✍ S. Chandramohan; R. Sathyamoorthy; P. Sudhagar; D. Kanjilal; D. Kabiraj; K. Asok 📂 Article 📅 2007 🏛 Elsevier Science 🌐 English ⚖ 635 KB

Modification of composition and structur

Modification of composition and structure of bimetallic nanocluster in silica by ion beam irradiation

✍ G. Mattei; V. Bello; P. Mazzoldi; G. Pellegrini; C. Sada; C. Maurizio; G. Battag 📂 Article 📅 2005 🏛 Elsevier Science 🌐 English ⚖ 158 KB

Precipitation of C, Si and metals nanopa

Precipitation of C, Si and metals nanoparticles in silicon-based gels induced by swift heavy ion irradiation

✍ J.C. Pivin; D.K. Avasthi; F. Singh; A. Kumar; E. Pippel; G. Sagon 📂 Article 📅 2005 🏛 Elsevier Science 🌐 English ⚖ 288 KB

Synthesis of Hierarchically Structured M

Synthesis of Hierarchically Structured Metal Oxides and their Application in Heavy Metal Ion Removal

✍ Jin-Song Hu; Liang-Shu Zhong; Wei-Guo Song; Li-Jun Wan 📂 Article 📅 2008 🏛 John Wiley and Sons 🌐 English ⚖ 484 KB 👁 2 views

## Abstract Hierarchically structured metal oxides have two or more levels of structure. Their nanometer‐sized building blocks provide a high surface area, a high surface‐to‐bulk ratio, and surface functional groups that can interact with, e.g., heavy metal ions. Their overall micrometer‐sized stru