Professor Dr Omar M. Yaghi

Research Priorities: Reticular chemistry, metal-organic and covalent organic framework structures, zeolitic imidazolate frameworks, molecular weaving, Ultra-porous crystals for water harvesting from air and carbon capture among other gases and liquids.
Omar M. Yaghi is a US-American chemist and materials scientist. The scientist has developed several classes of new materials with very large surface areas as well as very low densities, which make them ideally suited to numerous tasks in scientific and economic applications. Omar M. Yaghi has thus opened a new field in chemistry, reticular chemistry, and provided the impetus for developing materials with completely new properties. 
In 1995, Omar M. Yaghi succeeded for the first time in producing a metal-organic framework (MOF), whose metal ions are linked via charged organic connectors known as carboxylates. This was novel, as at that time hybrid organic and inorganic solid-state synthesis was still a long way apart. 
Firstly, the strong metal-carboxylate bonds provide an architecturally robust framework and a permanently porous quality. Secondly, metal-carboxylate clusters, so-called secondary building units (SBUs), can be produced and further developed into metal-organic structures with extremely high porosity. The porosity of a substance or mixture of substances describes the ratio of void volume to total volume. 
At the beginning of the millennium, the chemist extended his research to discover covalent organic frameworks (COFs) and zeolitic imidazolate frameworks. This enabled the production of crystals with ultra-porous structure, which had the lowest density known for crystals until that time. The very strong bonds within the metal-organic and covalent organic frameworks developed in this way enable their application for industrial use over thousands of cycles.
These ultra-porous crystals can also be precisely designed to form the basis of materials that can be used for storing hydrogen, methane or carbon dioxide as well as for the purification of polluted or contaminated air. It is also possible to collect and store water from desert air by using these highly porous materials. 
Omar M. Yaghi’s research is highly relevant to society, as materials developed in this way can also be used on a large scale to purify gases or liquids on the one hand and to collect and store them on the other. This is of interest to many disciplines, from drug production and the energy industry to medicine and environmental technology.