نتایج جستجو برای: functionalizing

تعداد نتایج: 543  

2011
Hui Pan Yong-Wei Zhang Vivek B Shenoy Huajian Gao

The magnetic properties of metal-functionalized graphitic carbon nitride nanotubes were investigated based on first-principles calculations. The graphitic carbon nitride nanotube can be either ferromagnetic or antiferromagnetic by functionalizing with different metal atoms. The W- and Ti-functionalized nanotubes are ferromagnetic, which are attributed to carrier-mediated interactions because of...

2007
Haiying He Ralph H. Scheicher Ravindra Pandey Alexandre Reily Rocha Stefano Sanvito Anton Grigoriev Rajeev Ahuja Shashi P. Karna

With the aim of improving nanopore-based DNA sequencing, we explored the effects of functionalizing the embedded gold electrodes with purine and pyrimidine molecules. Hydrogen bonds formed between the molecular probe and target bases stabilize the scanned DNA unit against thermal fluctuations and thus greatly reduce noise in the current signal. The results of our first-principles study indicate...

Journal: :Angewandte Chemie 2015
Aidan R Mouat Cassandra George Takeshi Kobayashi Marek Pruski Richard P van Duyne Tobin J Marks Peter C Stair

The reaction of γ-alumina with tetraethylorthosilicate (TEOS) vapor at low temperatures selectively yields monomeric SiO(x) species on the alumina surface. These isolated (-AlO)3Si(OH) sites are characterized by PXRD, XPS, DRIFTS of adsorbed NH3, CO, and pyridine, and (29)Si and (27)Al DNP-enhanced solid-state NMR spectroscopy. The formation of isolated sites suggests that TEOS reacts preferent...

Journal: :Frontiers in Environmental Science 2022

The building sector is one of the most resource-intensive industries. In Egypt, buildings consume 60% electricity, produce 8% CO 2 emissions, and anthropize agricultural land, peri-urban urban landscapes. To compensate for these consumption patterns, envelopes can become productive in terms greening energy production. This encompasses implementation systems that include (a) such as building-int...

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