نتایج جستجو برای: تقارن pt

تعداد نتایج: 50075  

Journal: :The Journal of chemical physics 2011
Peter Jakob Andreas Schlapka Pawel Gazdzicki

Chemical properties of epitaxially grown bimetallic layers may deviate substantially from the behavior of their constituents. Strain in conjunction with electronic effects due to the nearby interface represent the dominant contribution to this modification. One of the simplest surface processes to characterize reactivity of these substrates is the dissociative adsorption of an incoming homo-nuc...

Journal: :Chemical communications 2010
Shaojun Guo Shaojun Dong Erkang Wang

We for the first time report a facile, wet-chemical strategy for the high-yield (approximately 100%) synthesis of ultralong Pt-on-Pd bimetallic nanowires (NWs) with the cores being Pd NWs and the shells being made of dendritic Pt, which exhibit high surface area and enhanced electrocatalytic activity towards methanol oxidation reaction.

Journal: :Dalton transactions 2014
T-G Kocsor G Nemes N Saffon S Mallet-Ladeira D Madec A Castel J Escudié

The new phosphaalkenyl(chloro)tin(II) compound NHC-Sn(Cl)[C(SiMe3)=PMes*] was isolated and fully characterized including molecular structure determination by a single crystal X-ray diffraction analysis. Its reaction with Me2SAuCl led to the formation of an unprecedented P=C-bridged trinuclear gold complex [AuC(SiMe3)=PMes*]3 through the transfer of the phosphaalkenyl substituent to the gold atom.

2002
Yoon-Chul Cho Sung-Chul Shin

We investigated the wall-motion and nucleation activation volumes of Co/Pt multilayer films prepared by dc magnetron sputtering under various Ar sputtering pressures. Delicate analysis of time-resolved domain evolution patterns reveals that the nucleation activation volume is generally smaller than the wall-motion activation volume in all the samples, which is consistent with the nucleation-dom...

Journal: :Chemphyschem : a European journal of chemical physics and physical chemistry 2013
D Alfonso Crespo-Yapur Antoine Bonnefont Rolf Schuster Katharina Krischer Elena R Savinova

Cooperative behaviour of an array of microelectrodes: The interplay of bistable reaction kinetics with global coupling results in a spontaneous sequential activation of electrodes when the applied current is increased.

Journal: :Chemical communications 2008
Juan Xu Xuebin Yu Zhiqing Zou Zhilin Li Zhu Wu Daniel L Akins Hui Yang

The catalytic dehydrogenation of LiBH(4) doped with exceptionally low quantities of carbon-supported Pt nanoparticles can be improved significantly, and smaller Pt nanoparticles result in greater enhanced catalytic dehydrogenation of LiBH(4) than do larger Pt nanoparticles.

2016
Yanjun Xu Yumeng Yang Kui Yao Baoxi Xu Yihong Wu

Extensive efforts have been devoted to the study of spin-orbit torque in ferromagnetic metal/heavy metal bilayers and exploitation of it for magnetization switching using an in-plane current. As the spin-orbit torque is inversely proportional to the thickness of the ferromagnetic layer, sizable effect has only been realized in bilayers with an ultrathin ferromagnetic layer. Here we demonstrate ...

پایان نامه :دانشگاه آزاد اسلامی - دانشگاه آزاد اسلامی واحد تهران مرکزی - دانشکده علوم پایه 1390

کمبلکس های (pt(iv میتوانند بعنوان داروهای ضد سرطانی عمل میکنند.ما برهمکنش داروی [pt(iv)cl4 dach]را باdgmpبررسی کردیمتا نشان دهیم که پروتونه شدن n7از گوانین نقش مهمی را در انجام این واکنش بازی میکند.بطور کلی ما مکانیسم واکنش [pt(iv)cl4 dach]را باdgmpتوسط محاسبات تئوری پیدا کردیم.محاسبات ما نشان دادند که حدواسط این واکنش میتواند فورا کاهش پیدا کرده که این مرحله با بلند شدن همزمان طول پیوند pt-clو...

In this work, Pt, Fe and Co nanoparticles were prepared by chemical reduction of the metal salts in chitosan as the support. NaBH4 was used as the reducing agent Pt-Fe, Pt-Co and Pt-Fe-Co-chitosan nanocomposites were synthesized and characterized by UV–Vis spectra and Transmission electron microscopy images. GC/Pt-chitosan, GC/Pt-Co-chitosan, GC/Pt-Fe-chitosan and GC/Pt-Co-Fe-chitosan electrode...

The impregnation method was used to synthesize Pt and Pt3Co supported on MWCNTs applying NaBH4 as the reducing agent. The structure, morphology, and chemical composition of the electrocatalysts were characterized through SEM, XRD, and EDX. X-ray diffraction showed a good crystallinity of the supported Pt nanoparticles on the composites and showed the formation of Pt3<...

نمودار تعداد نتایج جستجو در هر سال

با کلیک روی نمودار نتایج را به سال انتشار فیلتر کنید