نتایج جستجو برای: ni nanopoarticles

تعداد نتایج: 52408  

Journal: :Plant physiology 2000
U Krämer I J Pickering R C Prince I Raskin D E Salt

The ability of Thlaspi goesingense Hálácsy to hyperaccumulate Ni appears to be governed by its extraordinary degree of Ni tolerance. However, the physiological basis of this tolerance mechanism is unknown. We have investigated the role of vacuolar compartmentalization and chelation in this Ni tolerance. A direct comparison of Ni contents of vacuoles from leaves of T. goesingense and from the no...

Journal: :Chemical science 2017
Zhuo-Yan Wu Teng Wang Yin-Shan Meng Yu Rao Bing-Wu Wang Jie Zheng Song Gao Jun-Long Zhang

Fine-tuning of the porphyrin β-periphery is important for naturally occurring metal tetrapyrroles to exert diverse biological roles. Here we describe how this approach is also applied to design molecular catalysts, as exemplified by Ni(ii) porphyrinoids catalyzing the hydrogen evolution reaction (HER). We found that β-hydrogenation of porphyrin remarkably enhances the electrocatalytic HER react...

2017
Hsun-Feng Hsu Chun-An Chen Shang-Wu Liu Chun-Kai Tang

Ni-silicide/Si nanowires were fabricated by atomic force microscope nano-oxidation on silicon-on-insulator substrates, selective wet etching, and reactive deposition epitaxy. Ni-silicide nanocrystal-modified Si nanowire and Ni-silicide/Si heterostructure multi-stacked nanowire were formed by low- and high-coverage depositions of Ni, respectively. The Ni-silicide/Si Schottky junction and Ni-sili...

Journal: :ARQ (Santiago) 2002

Journal: :Atenea (Concepción) 1933

Journal: :Cahiers d'études romanes 2020

Journal: :Les Cahiers des dix 2012

Journal: :Revue européenne des migrations internationales 2009

Journal: :Questions de communication 2005

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