Iron(III) oxide or ferric oxide is the inorganic compound with the formula Fe2O3. It is one of the three main oxides of iron, the other two being iron(II) oxide (FeO), which is rare; and iron(II,III) oxide (Fe3O4), which also occurs naturally as the mineral magnetite. As the mineral known as hematite, Fe2O3 is the main source of iron for the steel industry. Fe2O3 is readily attacked by acids. Iron(III) oxide is often called rust, since rust shares several properties and has a similar composition; however, in chemistry, rust is considered an ill-defined material, described as hydrous ferric oxide.
In materials science, the sol–gel process is a method for producing solid materials from small molecules. The method is used for the fabrication of metal oxides, especially the oxides of silicon (Si) and titanium (Ti). The process involves conversion of monomers in solution into a colloidal solution (sol) that acts as the precursor for an integrated network of either discrete particles or network polymers. Typical precursors are metal alkoxides. Sol–gel process is used to produce ceramic nanoparticles.
Ceramic engineering is the science and technology of creating objects from inorganic, non-metallic materials. This is done either by the action of heat, or at lower temperatures using precipitation reactions from high-purity chemical solutions. The term includes the purification of raw materials, the study and production of the chemical compounds concerned, their formation into components and the study of their structure, composition and properties.
Nanocomposite is a multiphase solid material where one of the phases has one, two or three dimensions of less than 100 nanometers (nm) or structures having nano-scale repeat distances between the different phases that make up the material.
Ceramic membranes are a type of artificial membranes made from inorganic materials. They are used in membrane operations for liquid filtration.
Renata Reisfeld is an Israeli Professor of Chemistry and D.H.C. Enrique Berman Professor of Solar Energy at Institute of Chemistry of the Hebrew University of Jerusalem, Israel, author of 532 scientific papers cited more than 30,000 times.
Ceramic nanoparticle is a type of nanoparticle that is composed of ceramics, which are generally classified as inorganic, heat-resistant, nonmetallic solids that can be made of both metallic and nonmetallic compounds. The material offers unique properties. Macroscale ceramics are brittle and rigid and break upon impact. However, Ceramic nanoparticles take on a larger variety of functions, including dielectric, ferroelectric, piezoelectric, pyroelectric, ferromagnetic, magnetoresistive, superconductive and electro-optical.
Taeghwan Hyeon is a South Korean chemist. He is SNU distinguished professor in the School of Chemical and Biological Engineering at Seoul National University, director of Center for Nanoparticle Research of Institute for Basic Science (IBS), and an associate editor of the Journal of the American Chemical Society.
Ayyappanpillai Ajayaghosh is a research scientist/academician in the domain of interdisciplinary chemistry, and the former Director of the National Institute for Interdisciplinary Science and Technology. He is known for his studies on supramolecular assemblies, organogels, photoresponsive materials, chemosensory and security materials systems and is an elected fellow of all the three major Indian science academies viz. the National Academy of Sciences, India, Indian National Science Academy and the Indian Academy of Sciences as well as The World Academy of Sciences. The Council of Scientific and Industrial Research, the apex agency of the Government of India for scientific research, awarded him the Shanti Swarup Bhatnagar Prize for Science and Technology, one of the highest Indian science awards for his contributions to Chemical Sciences in 2007. He is the first chemist to receive the Infosys Science Prize for physical sciences, awarded by the Infosys Science Foundation. He received the TWAS Prize of The World Academy of Sciences in 2013 and the Goyal prize in 2019.
Prof. (emeritus) David Avnir is an Israeli Professor of chemistry at the Institute of Chemistry, The Hebrew University of Jerusalem, where he also obtained all his academic training, and where he has held the positions of Head of the School of Chemistry, Head of the Institute of Chemistry, and Head of the Graduate School of the Experimental Sciences. His current scientific activities include sol-gel materials, molecularly doped metals, chirality and symmetry in experiments and theory. Earlier interests included fractals in chemistry and far-from-equilibrium phenomena. He has co-authored more than 400 papers (2020), many of which are highly cited. Co-founder of the International Sol-Gel Society and its first chairman of the board. He was awarded the Israel Chemical Society Prize in 2011.
Nicola Pinna is a chemist and professor at the Humboldt University of Berlin.
Chaitanyamoy Ganguly is an Indian nuclear scientist and a former head of the Nuclear Fuel Cycle and Materials Section of the International Atomic Energy Agency (IAEA), credited with many innovations in the field of nuclear material science. He was honored by the government of India in 2002, with the fourth-highest Indian civilian award of Padma Shri.
Aerogels are a class of synthetic porous ultralight material derived from a gel, in which the liquid component for the gel has been replaced with a gas, without significant collapse of the gel structure. The result is a solid with extremely low density and extremely low thermal conductivity. Aerogels can be made from a variety of chemical compounds. Silica aerogels feel like fragile styrofoam to the touch, while some polymer-based aerogels feel like rigid foams.
Subramaniam Ramakrishnan is an Indian polymer chemist, a professor at the Department of Inorganic and Physical Chemistry http://ipc.iisc.ac.in/~rk/ and the designer at th3 Macromolecular Design and Synthesis Group of the Indian Institute of Science. He is known for his studies on design and synthesis of controlled polymer structures and is an elected fellow of the Indian Academy of Sciences. The Council of Scientific and Industrial Research, the apex agency of the Government of India for scientific research, awarded him the Shanti Swarup Bhatnagar Prize for Science and Technology, one of the highest Indian science awards, in 2005, for his contributions to chemical sciences.
Nanosized aluminium oxide occurs in the form of spherical or nearly spherical nanoparticles, and in the form of oriented or undirected fibers.
Ulrike Diebold is an Austrian physicist and materials scientist who is a professor of surface science at TU Vienna. She is known for her groundbreaking research on the atomic scale geometry and electronic structure of metal-oxide surfaces.
Linda Faye Nazar is a Senior Canada Research Chair in Solid State Materials and Distinguished Research Professor of Chemistry at the University of Waterloo. She develops materials for electrochemical energy storage and conversion. Nazar demonstrated that interwoven composites could be used to improve the energy density of lithium–sulphur batteries. She was awarded the 2019 Chemical Institute of Canada Medal.
Katherine T. Faber is an American materials scientist and one of the world's foremost experts in ceramic engineering, material strengthening, and ultra-high temperature materials. Faber is the Simon Ramo Professor of Materials Science at the California Institute of Technology (Caltech). She was previously the Walter P. Murphy Professor and department chair of Materials Science and Engineering at the McCormick School of Engineering and Applied Science at Northwestern University.
Stephanie Lee Brock is an American chemist who is professor of inorganic chemistry at Wayne State University. Her research considers transition metal pnictides and chalcogenide nanomaterials. She is a Fellow of the American Association for the Advancement of Science and the American Chemical Society.
Sanjay Mathur is an inorganic chemist, current president of the American Ceramic Society. acting director of the Institute of Inorganic Chemistry at the University of Cologne, honorary co-director of the Institute of Renewable Energy Sources at the Xi'an Jiaotong University, a World Class University Professor at the Chonbuk University. He is an adjunct professor at the Indian Institutes of Technology in Chennai and has held visiting professorships at the Central South University, the Tokyo University of Agriculture and Technology, the National Institute of Science Education and Research. He was awarded the Honorary Doctorate of the Vilnius University in 2016. He is an elected fellow of the American Ceramic Society, the American Society for Metals, the European Science Academy, the Indian National Science Academy and has been awarded with the fellowships of the Alexander von Humboldt Foundation. Mathur is known for his library of single source precursors for the production of nanostructured ceramic materials with tailormade properties, attaining a h-index of 70 and over 18000 citations.
