نتایج جستجو برای: magnetic nanocatalysts

تعداد نتایج: 339453  

Journal: :Chemical communications 2010
Sung Jong Yoo Tae-Yeol Jeon Kug-Seung Lee Kyung-Won Park Yung-Eun Sung

Size-controlled Pt nanocatalysts embedded in TiO(2) were successfully synthesized by simultaneous dual-gun sputtering and were found to exhibit unique electronic properties depending on their size, which affected the potential of zero total charge, CO-bulk oxidation, and methanol oxidation reaction.

Journal: :Clean Technologies and Environmental Policy 2012

Journal: :Dalton transactions 2011
Shouhu Xuan Wanquan Jiang Xinglong Gong

Here we report a magnetic composite nanocatalyst (MP@NiSiO/Pd) with a rattle type nanostructure. The nickel silicate shell encapsulated magnetic core (MP@NiSiO) rattle particles were synthesized by using a facile templating method and the Pd nanocrystals with different sizes can be directly immobilized onto the MP@NiSiO rattles without using any surfactant or capping reagents. X-Ray powder Diff...

Journal: :Chemical communications 2014
Wenyao Chen Jian Ji Xuezhi Duan Gang Qian Ping Li Xinggui Zhou De Chen Weikang Yuan

We demonstrate an unprecedented H2 generation activity in the hydrolytic dehydrogenation of ammonia borane over acid oxidation- and subsequent high temperature-treated CNT immobilized Pt nanocatalysts to combine the merits of defect-rich and oxygen group-deficient surfaces and unique textural properties of supports as well as optimum particle size of Pt.

2017
Edwin S Gnanakumar Wesley Ng Bilge Coşkuner Filiz Gadi Rothenberg Sheng Wang Hualong Xu Laura Pastor-Pérez M Mercedes Pastor-Blas Antonio Sepúlveda-Escribano Ning Yan N Raveendran Shiju

We report a facile and general approach for preparing ultrafine ruthenium nanocatalysts by using a plasma-assisted synthesis at <100 °C. The resulting Ru nanoparticles are monodispersed (typical size 2 nm) and remain that way upon loading onto carbon and TiO2 supports. This gives robust catalysts with excellent activities in both organosilane oxidation and the oxygen evolution reaction.

2017
Guowu Zhan Hua Chun Zeng

Particulate catalysts with streamline shapes have important impacts on fluid-related reactions, and they need to be properly characterized. However, utilization of streamline-shaped catalysts for heterogeneous catalysis has remained an unexplored area due to the lack of easy-to-use techniques to produce such shaped catalysts, especially at the small length scale of the submicron to micron regim...

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