There is, I think, something ethereal about i —the square root of minus one. I remember first hearing about it at school. It seemed an odd beast at that time—an intruder hovering on the edge of reality.

Usually familiarity dulls this sense of the bizarre, but in the case of i it was the reverse: over the years the sense of its surreal nature intensified. It seemed that it was impossible to write mathematics that described the real world in …

I and i

다중혈관 관상동맥 환자에서 y-문합을 이용하여 양쪽 내흉동맥만을 사용한 우회술의 조기 성적

[신간의 별자리x] 우리/미술, 그리고 ‘슬픔의 박물관’

The interest in nanoscale materials stems from the fact that new properties are acquired at this length scale and, equally important, that these properties * To whom correspondence should be addressed. Phone, 404-8940292; fax, 404-894-0294; e-mail, mostafa.el-sayed@ chemistry.gatech.edu. † Case Western Reserve UniversitysMillis 2258. ‡ Phone, 216-368-5918; fax, 216-368-3006; e-mail, burda@case.edu. § Georgia Institute of Technology. 1025 Chem. Rev. 2005, 105, 1025−1102

Chemistry and properties of nanocrystals of different shapes.

N-Heterocyclic Carbenes in Late Transition Metal Catalysis

An efficient, easy-to-handle, and mild substitution reaction approach has been developed for the synthesis of phosphonate derivatives, which are very important in the field of industrial, agricultu...

A simple protocol for the synthesis of α-substituted phosphonates

Hydroxymethylfurfural (5-HMF) is a vital biomass-derived platform chemical for the production of secondary value-added chemicals. In this work, fructose conversion into 5-HMF over metal-organic framework (MOF) has been considered. Several MOF-based catalysts were synthesized and examined in fructose dehydration into 5-HMF via a microwave-assisted reactor. Each MOF's catalytic performance was evaluated concerning its surface area, pore size, and acid density. The results showed satisfactory fructose conversion levels for all studied MOFs in the range of 60%-99%. As a catalyst, zeolitic imidazolate frameworks (ZIFs) resulted in excellent fructose conversion, but interestingly, higher quantities of side products such as formic and levulinic acids were produced. The higher 5-HMF yields, up to 90%, were obtained over the MIL-101 (MIL, Materials Institute Lavoisier) family, such as MIL-101-SO3H. This result is ascribed to the fact that functionalized MOF possesses hydrothermal stability, high surface area, and suitable pore sizes.

Metal-organic frameworks as catalysts for fructose conversion into 5-hydroxymethylfurfural : catalyst screening and parametric study

Plasma-enhanced elemental enrichment of liquid metal interfaces: Towards realization of GaS nanodomains in two-dimensional Ga2O3

Environmental pollution is gradually growing as a potential threat to human civilization and an imminent danger for the ecosystem. Among a variety of methods practiced thus far to annihilate these contaminants, commonly classified as gaseous and wastewater pollutants, photocatalytic protocol remains most promising due to its economic and environmentally benign nature. We herein portrayed the activity of topical advanced photoactive materials, namely conjugated semiconducting porous organic polymers and plasmonic composites, for decontamination of these pollutants from the environment. Different scenarios experienced by the materials upon photon irradiation are explicitly discussed to provide a clear picture of their working principle during the pollutant degradation process. Structural and optoelectronic properties such as surface area, porosity, highest occupied molecular orbital-lowest unoccupied molecular orbital potential, and bandgaps of these materials, which significantly affect their overall photocatalytic properties, have been deliberately emphasized in the discussion along with available literature to cater a comprehensive idea of their general reactivity.

Francis Verpoort

Papers

A simple protocol for the synthesis of α-substituted phosphonates

Metal-organic frameworks as catalysts for fructose conversion into 5-hydroxymethylfurfural : catalyst screening and parametric study

Plasma-enhanced elemental enrichment of liquid metal interfaces: Towards realization of GaS nanodomains in two-dimensional Ga2O3

Degradation of environmental contaminants by topical heterogeneous photocatalysts

Ruthenium‐Based Olefin Metathesis Catalysts Derived from Alkynes