نتایج جستجو برای: bimetallic catalysts

تعداد نتایج: 35948  

Journal: :Angewandte Chemie 2011
Xiaofang Yang Jun Hu Jie Fu Ruqian Wu Bruce E Koel

Applications of polymer electrolyte membrane fuel cells (PEM-FCs) require a continued search for an optimal catalyst with attributes of high activity, durability, low cost, and resistance to negative effects of impurities in the fuel. Platinum-based bimetallic catalyst systems are widely utilized in PEM-FCs because of their good performance in both the cathode and the anode. Alloying with inexp...

2013
Zachary D. Pozun Stacia E. Rodenbusch Emily Keller Kelly Tran Wenjie Tang Keith J. Stevenson Graeme Henkelman

We demonstrate that the reduction of p-nitrophenol to p-aminophenol by NaBH4 is catalyzed by both monometallic and bimetallic nanoparticles (NPs). We also demonstrate a straightforward and precise method for the synthesis of bimetallic nanoparticles using poly(amido)amine dendrimers. The resulting dendrimer encapsulated nanoparticles (DENs) are monodisperse, and the size distribution does not v...

Journal: :Nanoscale 2013
Pinxian Xi Yang Cao Fengchun Yang Cai Ma Fengjuan Chen Sha Yu Shuai Wang Zhengzhi Zeng Xin Zhang

We employed an efficient and facile route to synthesise monodisperse Pd-based bimetallic nanocrystals (MPd: M = Cu, Co and Ni) via a controlled co-reduction of Pd(ii) chloride and M(ii) nitrate at 200-230 °C in the presence of oleylamine (OAm). These monodisperse Pd-based nanocrystals have small dimensions, unique structures and homogeneous morphology, thus exhibit efficient catalytic activitie...

2016
Jian Feng Youquan Zhang Wei Xiong Hao Ding

A series of ZrO2 supported Ru-Co bimetallic catalysts were prepared and evaluated for the hydrogenolysis of glycerol. The Ru-Co/ZrO2 bimetallic catalyst combines the advantages of both Ru and Co, exhibiting high activity and good selectivity to 1,2-propanediol. The X-ray diffraction (XRD) and TEM results show that higher calcination temperature leads to lower reducibility of cobalt oxides and l...

Journal: :New Journal of Chemistry 2022

Low palladium content in the hybrid bimetallic copper-palladium zeolite catalysts is beneficial for dimethyl ether production from CO 2 .

Journal: :Catalysts 2021

At present, the use of conventional wastewater processes is becoming increasingly challenging, mainly due to presence biorecalcitrant organic matter. Advanced oxidation such as Fenton, Fenton-like and hybrid have been successfully employed for treatment highly concentrated toxic non-biodegradable pollutants. Here, a series bimetallic catalysts, based on Cu/Fe supported over ZrO2, were investiga...

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