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Journal of Materials Science and Nanotechnology | Volume 2

October 29-30, 2018 | London, UK

Nanomaterials and Nanotechnology

International Conference on

Nanoscopic metal fluorides: A new world of fluoride-based materials

Erhard Kemnitz

Humboldt-Universität zu Berlin, Germany

he lecture will focus on nanoscopic metal fluorides and

hydroxide fluorides prepared via a recently explored

fluorolytic sol-gel synthesis approach. Metal fluoride phases

obtained via this route exhibit distinctly different properties as

compared with their classically prepared homologues. Due to

their unique optical and catalytic properties nanoscopic metal

fluorides are of great interest for several applications in optical

materials, photonics, catalysis, ophthalmology, ceramics etc.

An essential pre-condition for their use in these fields is their

homodispersed particle sizes on a low nanometer scale. MFn-

materials fitting these requirements can be obtained according

the so-called “fluorolytic” sol gel synthesis:

M-OR + HF →M-F + ROH (fluorolysis)

These nanoscopic metal fluorides exhibit particle sizes below

10 nm, high specific surface areas ranging from 200 up to

600m

-1

due to an extremely high degree of structural disorder

and hence, show chemical and physical behaviour distinctly

different from their classical counterparts. Based on such nano-

metal fluorides, excellent catalytic performances have been

achieved in several reactions for the synthesis of fine chemicals;

corundum ceramics with improved mechanical and optical

properties, antireflective layers with almost 100% transmission

and new inorganic-organic compositematerials can be obtained.

Speaker Biography

Erhard Kemnitz has received his doctoral degree in 1977. In 1988 he became an assistant

professor and received a full-time tenure track in 1994, from both at the Humboldt-

Universität zu, Berlin. His main research interests cover the synthesis and characterisation

of nanoscopic metal fluorides for applications in the field of heterogeneous catalysis,

optics, ceramics, surface coating etc. He published about 450 papers, 11 review

articles, 12 books and/or book chapters, and filed more than 20 patents. His h-index is

41 and he has been serving as an editorial board member of several reputed Journals.