Morphology control of cobalt oxide nanocrystals for promoting their catalytic performance

Nanoscale ◽  
2009 ◽  
Vol 1 (1) ◽  
pp. 50 ◽  
Author(s):  
Xiaowei Xie ◽  
Wenjie Shen
Keyword(s):  
Cobalt Oxide ◽  
Morphology Control ◽  
Catalytic Performance

Supported cobalt oxide nanocrystals: morphology control and catalytic performance for styrene oxidation

RSC Advances ◽  
2016 ◽  
Vol 6 (92) ◽  
pp. 89503-89509 ◽  
Author(s):  
Zhen Wang ◽  
Xianliang Hou ◽  
Jingmei Shen ◽  
Tiehu Li
Keyword(s):  
High Activity ◽  
Cobalt Oxide ◽  
Morphology Control ◽  
Catalytic Performance ◽  
Oxide Catalysts ◽  
Styrene Oxidation

Supported cobalt oxide catalysts with controlled size and morphologies were facilely synthesized and had high activity for styrene oxidation.

Copper–cobalt oxide catalysts supported on MgF or AlO—their structure and catalytic performance

2006 ◽  
Vol 298 ◽  
pp. 225-231 ◽  
Author(s):  
M WOJCIECHOWSKA ◽  
M ZIELINSKI ◽  
A MALCZEWSKA ◽  
W PRZYSTAJKO ◽  
M PIETROWSKI
Keyword(s):  
Cobalt Oxide ◽  
Catalytic Performance ◽  
Oxide Catalysts

scholarly journals Catalytic performance of cobalt oxide-supported gold-palladium nanocatalysts for the removal of toluene and o -xylene

2017 ◽  
Vol 38 (2) ◽  
pp. 207-216 ◽  
Author(s):  
Zhiwei Wang ◽  
Yuxi Liu ◽  
Tao Yang ◽  
Jiguang Deng ◽  
Shaohua Xie ◽  
...  
Keyword(s):  
Cobalt Oxide ◽  
Catalytic Performance ◽  
Palladium Nanocatalysts ◽  
Supported Gold

Hierarchically Structured Cobalt Oxide (Co3O4):  The Morphology Control and Its Potential in Sensors

2006 ◽  
Vol 110 (32) ◽  
pp. 15858-15863 ◽  
Author(s):  
An-Min Cao ◽  
Jin-Song Hu ◽  
Han-Pu Liang ◽  
Wei-Guo Song ◽  
Li-Jun Wan ◽  
...  
Keyword(s):  
Cobalt Oxide ◽  
Morphology Control

A general hierarchical flower-shaped cobalt oxide spinel template: facile method, morphology control, and enhanced saturation magnetization

2020 ◽  
Vol 8 (40) ◽  
pp. 14056-14065
Author(s):  
Zheng Fu ◽  
Liang Qiao ◽  
Yang Liu ◽  
Zhengxi Xuan ◽  
Changning Li ◽  
...  
Keyword(s):  
Saturation Magnetization ◽  
Cobalt Oxide ◽  
Morphology Control ◽  
Broad Array ◽  
Oxide Spinel ◽  
Cobaltite Spinel ◽  
General Method

A robust and general method for producing cobaltite spinel nanostructures containing a broad array of additional elements is presented.

Hierarchical multi-villous nickel–cobalt oxide nanocyclobenzene arrays: morphology control and electrochemical supercapacitive behaviors

CrystEngComm ◽  
2014 ◽  
Vol 16 (41) ◽  
pp. 9735-9742 ◽  
Author(s):  
Jinbing Cheng ◽  
Yang Lu ◽  
Kangwen Qiu ◽  
Deyang Zhang ◽  
Chunlei Wang ◽  
...  
Keyword(s):  
Cobalt Oxide ◽  
High Performance ◽  
Nickel Foam ◽  
Low Cost ◽  
Morphology Control ◽  
Capacitive Performance ◽  
Nickel Cobalt ◽  
Nickel Cobalt Oxide ◽  
Long Life ◽  
Self Assembled

Self-assembled multi-villous nickel–cobalt oxide nanocyclobenzene arrays were directly grown on nickel foam by a mild and low-cost method, and they exhibited superior capacitive performance and long-life stability as an advanced integrated electrode for high-performance supercapacitors.

Nickel cobalt oxide/carbon nanotubes hybrid as a high-performance electrocatalyst for metal/air battery

Nanoscale ◽  
2014 ◽  
Vol 6 (17) ◽  
pp. 10235-10242 ◽  
Author(s):  
Hui Zhang ◽  
Hang Qiao ◽  
Haiyan Wang ◽  
Nan Zhou ◽  
Jiajie Chen ◽  
...  
Keyword(s):  
Carbon Nanotubes ◽  
Synergistic Effect ◽  
Cobalt Oxide ◽  
High Performance ◽  
Catalytic Performance ◽  
Nickel Cobalt ◽  
Nickel Cobalt Oxide ◽  
Air Battery

The NiCo2O4/CNTs hybrid was firstly proposed as a high-performance catalyst for ORR process. Because of the synergistic effect, the hybrid exhibited significant improvement of catalytic performance in comparison with the NiCo2O4 or CNTs alone, even outperforming Pt/C.

scholarly journals Formation of Nanocrystalline Cobalt Oxide-Decorated Graphene for Secondary Lithium-Air Battery and Its Catalytic Performance in Concentrated Alkaline Solutions

Nanomaterials ◽  
2020 ◽  
Vol 10 (6) ◽  
pp. 1122
Author(s):  
Si-Han Peng ◽  
Hsin-Chun Lu ◽  
Shingjiang Jessie Lue
Keyword(s):  
Cobalt Oxide ◽  
Hydrothermal Reaction ◽  
Catalytic Performance ◽  
Discharge Voltage ◽  
Alkaline Solutions ◽  
Carbon Cloth ◽  
X Ray Diffraction ◽  
Charge Voltage ◽  
Cobalt Solution ◽  
Air Battery

A potent cathode catalyst of octahedral cobalt oxide (Co3O4) was synthesized onto graphene (GR) nanosheets via a two-step preparation method. The precursor cobalt solution reacted with GR during the initial hydrolysis step to form intermediates. A subsequent hydrothermal reaction promoted Co3O4 crystallinity with a crystalline size of 73 nm, resulting in octahedral particles of 100–300 nm in size. Scanning electron microscopy, Raman spectroscopy, and X-ray diffraction analysis confirmed the successful formation of the Co3O4/GR composite. This catalyst composite was sprayed onto a carbon cloth to form a cathode for the hybrid electrolyte lithium-air battery (HELAB). This catalyst demonstrated improved oxygen reduction and oxygen evolution capabilities. The HELAB containing this catalyst showed a higher discharge voltage and stable charge voltage, resulting in a 34% reduction in overall over-potential compared to that without the Co3O4/GR composite. The use of saturated LiOH in 11.6 M LiCl aqueous electrolyte at the cathode further reduced the over-potential by 0.5 V. It is proposed that the suppressed dissociation of LiOH expedites the charging reaction from un-dissociated LiOH. This Co3O4/GR composite is a promising bi-functional catalyst, suitable as a cathode material for a HELAB operating in high relative humidity and highly alkaline environment.

scholarly journals Cobalt oxide–carbon nanocatalysts with highly enhanced catalytic performance for the green synthesis of nitrogen heterocycles through the Friedländer condensation

2019 ◽  
Vol 48 (17) ◽  
pp. 5637-5648 ◽  
Author(s):  
Marina Godino-Ojer ◽  
Antonio J. López-Peinado ◽  
Francisco J. Maldonado-Hódar ◽  
Esther Bailón-García ◽  
Elena Pérez-Mayoral
Keyword(s):  
Green Synthesis ◽  
Cobalt Oxide ◽  
Nitrogen Heterocycles ◽  
Catalytic Performance ◽  
Carbon Supports ◽  
Highly Efficient ◽  
Coo Nanoparticles

A novel series of eco-sustainable catalysts developed by supporting CoO nanoparticles on different carbon supports, highly efficient in the synthesis of quinolines and naphthyridines, through the Friedländer condensation.

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