Facile and large-scale preparation of Co/Ni-MoO2 composite as high-performance electrocatalyst for hydrogen evolution reaction

2018 ◽  
Vol 43 (45) ◽  
pp. 20721-20726 ◽  
Author(s):  
Bo Xu ◽  
Yiqiang Sun ◽  
Zhiming Chen ◽  
Shuying Zhao ◽  
Xiaodong Yang ◽  
...  
Keyword(s):  
Hydrogen Evolution ◽  
Hydrogen Evolution Reaction ◽  
High Performance ◽  
Large Scale ◽  
Large Scale Preparation ◽  
Scale Preparation

Graphene-based three-dimensional hierarchical sandwich-type architecture for high performance supercapacitors

RSC Advances ◽  
2014 ◽  
Vol 4 (17) ◽  
pp. 8466-8471 ◽  
Author(s):  
Yufei Zhang ◽  
Mingze Ma ◽  
Jun Yang ◽  
Wei Huang ◽  
Xiaochen Dong
Keyword(s):  
Carbon Nanotubes ◽  
High Performance ◽  
Large Scale ◽  
Three Dimensional ◽  
Step Method ◽  
Large Scale Preparation ◽  
Sandwich Type ◽  
Scale Preparation

A facile two-step method is developed for large-scale preparation of graphene-based three-dimensional hierarchical sandwich-type architecture (graphene/carbon nanotubes (CNTs)/Mn2O3) for high performance supercapacitor.

scholarly journals Recent Advances of Cobalt-Based Electrocatalysts for Oxygen Electrode Reactions and Hydrogen Evolution Reaction

Catalysts ◽  
2018 ◽  
Vol 8 (11) ◽  
pp. 559 ◽  
Author(s):  
Haihong Zhong ◽  
Carlos Campos-Roldán ◽  
Yuan Zhao ◽  
Shuwei Zhang ◽  
Yongjun Feng ◽  
...  
Keyword(s):  
Hydrogen Evolution ◽  
Hydrogen Evolution Reaction ◽  
High Performance ◽  
Large Scale ◽  
Oxygen Electrode ◽  
Reduction Reaction ◽  
Alkaline Media ◽  
Ligand Effect ◽  
Support Materials ◽  
Double Hydroxides

This review summarizes recent progress in the development of cobalt-based catalytic centers as the most potentially useful alternatives to noble metal-based electrocatalysts (Pt-, Ir-, and Ru-based) towards the oxygen reduction reaction (ORR), oxygen evolution reaction (OER), and hydrogen evolution reaction (HER) in acid and alkaline media. A series of cobalt-based high-performance electrocatalysts have been designed and synthesized including cobalt oxides/chalcogenides, Co–Nx/C, Co-layered double hydroxides (LDH), and Co–metal-organic frameworks (MOFs). The strategies of controllable synthesis, the structural properties, ligand effect, defects, oxygen vacancies, and support materials are thoroughly discussed as a function of the electrocatalytic performance of cobalt-based electrocatalysts. Finally, prospects for the design of novel, efficient cobalt-based materials, for large-scale application and opportunities, are encouraged.

Purification of the Antihemophilic Factor by Gel Filtration on Agarose

1969 ◽  
Vol 22 (03) ◽  
pp. 577-583 ◽  
Author(s):  
M.M.P Paulssen ◽  
A.C.M.G.B Wouterlood ◽  
H.L.M.A Scheffers
Keyword(s):  
Factor Viii ◽  
Plasma Proteins ◽  
Large Scale ◽  
Gel Filtration ◽  
Large Scale Preparation ◽  
Scale Preparation ◽  
Antihemophilic Factor

SummaryFactor VIII can be isolated from plasma proteins, including fibrinogen by chromatography on agarose. The best results were obtained with Sepharose 6B. Large scale preparation is also possible when cryoprecipitate is separated by chromatography. In most fractions containing factor VIII a turbidity is observed which may be due to the presence of chylomicrons.The purified factor VIII was active in vivo as well as in vitro.

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