Fast sulfurization of nickel foam-supported nickel-cobalt carbonate hydroxide nanowire array at room temperature for hydrogen evolution electrocatalysis

2019 ◽  
Vol 318 ◽  
pp. 252-261 ◽  
Author(s):  
Wangting Lu ◽  
Xuwen Li ◽  
Feng Wei ◽  
Kun Cheng ◽  
Wenhui Li ◽  
...  
Keyword(s):  
Hydrogen Evolution ◽  
Room Temperature ◽  
Nickel Foam ◽  
Nanowire Array ◽  
Cobalt Carbonate ◽  
Nickel Cobalt ◽  
Carbonate Hydroxide

scholarly journals Simple Synthesis of Cobalt Carbonate Hydroxide Hydrate and Reduced Graphene Oxide Hybrid Structure for High-Performance Room Temperature NH3 Sensor

Sensors ◽  
2019 ◽  
Vol 19 (3) ◽  
pp. 615 ◽  
Author(s):  
Chang Wang ◽  
Huan Wang ◽  
Dan Zhao ◽  
Xianqi Wei ◽  
Xin Li ◽  
...  
Keyword(s):  
Graphene Oxide ◽  
Reduced Graphene Oxide ◽  
Gas Sensor ◽  
Room Temperature ◽  
Gas Sensing ◽  
Hybrid Structure ◽  
Cobalt Carbonate ◽  
Carbonate Hydroxide ◽  
Reduced Graphene ◽  
Hydroxide Hydrate

A novel hybrid structure sensor based on cobalt carbonate hydroxide hydrate (CCHH) and reduced graphene oxide (RGO) was designed for room temperature NH3 detection. This hybrid structure consisted of CCHH and RGO (synthesized by a one-step hydrothermal method), in which RGO uniformly dispersed in CCHH, being used as the gas sensing film. The resistivity of the hybrid structure was highly sensitive to the changes on NH3 concentration. CCHH in the hybrid structure was the sensing material and RGO was the conductive channel material. The hybrid structure could improve signal-to-noise ratio (SNR) and the sensitivity by obtaining the optimal mass proportion of RGO, since the proportion of RGO was directly related to sensitivity. The gas sensor with 0.4 wt% RGO showed the highest gas sensing response reach to 9% to 1 ppm NH3. Compared to a conventional gas sensor, the proposed sensor not only showed high gas sensing response at room temperature but also was easy to achieve large-scale production due to the good stability and simple synthesis process.

Self-supported nickel cobalt carbonate hydroxide nanowires encapsulated cathodically expanded graphite paper for supercapacitor electrodes

2020 ◽  
Vol 363 ◽  
pp. 137236
Author(s):  
Yanzhong Wang ◽  
Chenjing Shi ◽  
Yanjun Chen ◽  
Dan Li ◽  
Guangping Wu ◽  
...  
Keyword(s):  
Expanded Graphite ◽  
Cobalt Carbonate ◽  
Nickel Cobalt ◽  
Carbonate Hydroxide

Precisely tailoring ZIF-67 nanostructures from cobalt carbonate hydroxide nanowire arrays: toward high-performance battery-type electrodes

2015 ◽  
Vol 3 (32) ◽  
pp. 16688-16694 ◽  
Author(s):  
Dongbo Yu ◽  
Liang Ge ◽  
Bin Wu ◽  
Liang Wu ◽  
Huanting Wang ◽  
...  
Keyword(s):  
Electrochemical Performance ◽  
High Performance ◽  
Nanowire Array ◽  
Nanowire Arrays ◽  
Nanotube Array ◽  
Unique Structure ◽  
Cobalt Carbonate ◽  
Carbonate Hydroxide ◽  
Facile Transformation

A facile transformation of a cobalt carbonate hydroxide nanowire array to a ZIF-67-based nanotube array was achieved, and the ZIF-67-derived mesoporous Co3O4 nanotube array exhibited remarkable electrochemical performance as a battery-type electrode due to its unique structure.

Cubic Nanostructures of Nickel–Cobalt Carbonate Hydroxide Hydrate as a High-Performance Oxygen Evolution Reaction Electrocatalyst in Alkaline and Near-Neutral Media

2020 ◽  
Vol 59 (22) ◽  
pp. 16690-16702 ◽  
Author(s):  
Kannimuthu Karthick ◽  
Sugumar Subhashini ◽  
Rishabh Kumar ◽  
Sridhar Sethuram Markandaraj ◽  
Muthukumar Muthu Teepikha ◽  
...  
Keyword(s):  
Oxygen Evolution ◽  
Oxygen Evolution Reaction ◽  
High Performance ◽  
Cobalt Carbonate ◽  
Nickel Cobalt ◽  
Carbonate Hydroxide ◽  
Neutral Media ◽  
Hydroxide Hydrate
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