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Ultrafine metal nanoparticles isolated on oxide nano-islands as exceptional sintering-resistant catalysts An isolation strategy is presented to improve the stability of metal nanoparticles by grafting oxide nano-islands between the support and the nanoparticles. This enhances sintering resistance, with the ...
The self-assembly of metallic nanoparticles on oxide supports via metal exsolution relies on dopant transport, but strong electrostatic gradients and space charges typically control the properties of surfaces. The surface–dopant interaction is shown to be the main determining factor for the exsolution ...
Correlating atomic configurations—specifically, degree of disorder (DOD)—of an amorphous solid with properties is a long-standing riddle in materials science and condensed matter physics, owing to difficulties in determining precise atomic positions in 3D structures1,2,3,4,5. To this end, 2D sys...
Preparation of an electrically conductive graphene oxide/chitosan scaffold for cardiac tissue engineering. Appl. Biochem. Biotechnol. 188, 952–964 (2019). Article CAS Google Scholar Ahadian, S. et al. Moldable elastomeric polyester-carbon nanotube scaffolds for cardiac tissue engineering. Acta ...
For top-gate CFO devices, a 20 nm-thick hafnium oxide (HfO2) dielectric layer was deposited by atomic layer deposition (ALD) on the prepared two-terminal devices. Subsequently, the top-gate electrode is fabricated by standard electron beam lithography (EBL) and metal deposition of 10/60 nm...
After washed three times with 0.1 M phosphate buffer (pH 7.4), cells were fixed using 1% osmium tetra-oxide (OsO4) for 60 min at room temperature. The cells were subsequently rinsed twice with water for 10 min and then stained for 30 min at room temperature using 2% uranyl ...
Magnetization promoted activity of magnetic catalysts towards the oxygen evolution reaction (OER) has attracted great attention, but remains a puzzle where the increment comes from. Magnetization of a ferromagnetic material only changes its magnetic domain structure. It does not directly change the spin...
the crossnet architecture proposed to use distributed small tilted integrated crossbars on top of the Complementary Metal-Oxide-Semiconductor (CMOS) substrate, to create local connectivity domains for image processing33. The tilted crossbars allow the nano-wire feature size to be independent of the CM...
原文链接:https://science.sciencemag.org/content/360/6395/13398.Nature:质子通过单原子厚度的晶体传输英国曼彻斯特大学Andre Geim教授联合中国科技大学H. A. Wu教授团队发现热质子(质子是电子和原子之间的一种中间状态)在单层石墨烯和h-BN中具有较高渗透性,而对于较厚的晶体,如单层二硫化钼、双层石墨烯或多层hBN,...