In situ Grown Ni phosphate@Ni12P5 Nanorod Arrays as a Unique Core–Shell Architecture: Competitive Bifunctional Electrocatalysts for Urea Electrolysis at Large Current Densities

2020 ◽  
Vol 8 (19) ◽  
pp. 7463-7471 ◽  
Author(s):  
Xiujuan Xu ◽  
Puyu Du ◽  
Tong Guo ◽  
Bolin Zhao ◽  
Huanlei Wang ◽  
...  
Keyword(s):  
Core Shell ◽  
Nanorod Arrays ◽  
Bifunctional Electrocatalysts ◽  
Large Current ◽  
Urea Electrolysis ◽  
Current Densities ◽  
Unique Core

HYDROTHERMAL FABRICATION OF CORE-SHELL STRUCTURED Cu2O MICROSPHERES VIA AN INTERMEDIATE-TEMPLATE ROUTE

2009 ◽  
Vol 23 (31n32) ◽  
pp. 3851-3858 ◽  
Author(s):  
YUNFEI SI ◽  
DONGFENG XUE
Keyword(s):  
Ostwald Ripening ◽  
Morphological Evolution ◽  
Water System ◽  
Functional Materials ◽  
Core Shell ◽  
Effective Solution ◽  
Hollow Structures ◽  
Inside Out ◽  
Unique Core

Homogenous core-shell structured Cu 2 O microspheres have been successfully fabricated by a reductive transformation of in situ formed intermediate templates in an aqueous solution. The morphological evolution for these unique hollow structures was monitored via SEM observations and a detailed formation process has been proposed: (i) formation of intermediate microspheres; (ii) reductive conversion of this template to Cu 2 O ; (iii) inside-out Ostwald ripening of Cu 2 O microspheres. In this ethanol-water system, ethanol serves as reductant in the reductive conversion process and the reaction temperature has an important effect on the formation of unique core-shell architectures. This effective solution-based synthetic route may shed some light on the design and fabrication of homogenous core-shell micro/nanostructures of other promising functional materials.

Industrially promising NiCoP nanorod arrays tailored with trace W and Mo atoms for boosting large-current-density overall water splitting

Nanoscale ◽  
2021 ◽  
Author(s):  
Xin Guo ◽  
Menggang Li ◽  
Lin He ◽  
Shuo Geng ◽  
Fenyang Tian ◽  
...  
Keyword(s):  
Water Splitting ◽  
Current Density ◽  
Nanorod Arrays ◽  
Overall Water Splitting ◽  
Large Current ◽  
Large Current Density ◽  
High Overpotentials ◽  
Current Densities

Nanoarray catalysts supported on the substrates provide an opportunity for industrially promising overall water splitting at large-current-densities. However, most of the present electrocatalysts show high overpotentials at a large current...

Integrating well-controlled core-shell structures into “superaerophobic” electrodes for water oxidation at large current densities

2021 ◽  
Vol 286 ◽  
pp. 119920
Author(s):  
Qi Hu ◽  
Ziyu Wang ◽  
Xiaowan Huang ◽  
Yongjie Qin ◽  
Hengpan Yang ◽  
...  
Keyword(s):  
Water Oxidation ◽  
Shell Structures ◽  
Core Shell ◽  
Large Current ◽  
Current Densities

scholarly journals In-situ Electrochemical Synthesis of Core-shell Structural NbC@Nb5Si3/Nb Composites in Molten Salt

2021 ◽  
Vol 714 (3) ◽  
pp. 032008
Author(s):  
Hongmei Li ◽  
Zhisheng Nong ◽  
Qian Xu ◽  
Qiushi Song ◽  
Ying Chen ◽  
...  
Keyword(s):  
Molten Salt ◽  
Electrochemical Synthesis ◽  
Core Shell

Porous and amorphous cobalt hydroxysulfide core–shell nanoneedles on Ti-mesh as a bifunctional electrocatalyst for energy-efficient hydrogen production via urea electrolysis

2021 ◽  
Author(s):  
Yu Jiang ◽  
Shanshan Gao ◽  
Gongchen Xu ◽  
Xiaoming Song
Keyword(s):  
Hydrogen Production ◽  
High Activity ◽  
Energy Efficient ◽  
Bifunctional Catalyst ◽  
Core Shell ◽  
Bifunctional Electrocatalyst ◽  
Urea Electrolysis ◽  
Ti Mesh

Porous and amorphous CoSx(OH)y core–shell nanoneedles covered by numerous ultra-thin small nanosheets are synthesized successfully on Ti-mesh, and act as a high activity and stability bifunctional catalyst for urea electrolysis.

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