Effects of ammonium chloride on structural stability of cobalt carbonate hydroxide and their improved electrochemical performance for supercapacitor

2021 ◽  
Vol 44 ◽  
pp. 103472
Author(s):  
Wei Guo ◽  
Tao Yang ◽  
Lianjie Huang ◽  
Shuang Wang
Keyword(s):  
Electrochemical Performance ◽  
Ammonium Chloride ◽  
Structural Stability ◽  
Cobalt Carbonate ◽  
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.

scholarly journals Facile Synthesis of Carbon Cloth Supported Cobalt Carbonate Hydroxide Hydrate Nanoarrays for Highly Efficient Oxygen Evolution Reaction

2021 ◽  
Vol 9 ◽  
Author(s):  
Yubing Yan
Keyword(s):  
Electron Microscopy ◽  
Oxygen Evolution ◽  
Current Density ◽  
Oxygen Evolution Reaction ◽  
Active Sites ◽  
Carbon Cloth ◽  
High Porosity ◽  
Cobalt Carbonate ◽  
Carbonate Hydroxide ◽  
Hydroxide Hydrate

Developing efficient and low-cost replacements for noble metals as electrocatalysts for the oxygen evolution reaction (OER) remain a great challenge. Herein, we report a needle-like cobalt carbonate hydroxide hydrate (Co(CO3)0.5OH·0.11H2O) nanoarrays, which in situ grown on the surface of carbon cloth through a facile one-step hydrothermal method. Scanning electron microscopy (SEM) and transmission electron microscopy (TEM) characterizations demonstrate that the Co(CO3)0.5OH nanoarrays with high porosity is composed of numerous one-dimensional (1D) nanoneedles. Owing to unique needle-like array structure and abundant exposed active sites, the Co(CO3)0.5OH@CC only requires 317 mV of overpotential to reach a current density of 10 mA cm−2, which is much lower than those of Co(OH)2@CC (378 mV), CoCO3@CC (465 mV) and RuO2@CC (380 mV). For the stability, there is no significant attenuation of current density after continuous operation 27 h. This work paves a facile way to the design and construction of electrocatalysts for the OER.

scholarly journals Al-doped α-MnO2 coated by lignin for high-performance rechargeable aqueous zinc-ion batteries

RSC Advances ◽  
2021 ◽  
Vol 11 (56) ◽  
pp. 35280-35286
Author(s):  
Jingliang Xu ◽  
Xinhang Hu ◽  
Md Asraful Alam ◽  
Gul Muhammad ◽  
Yongkun Lv ◽  
...  
Keyword(s):  
Electrochemical Performance ◽  
Structural Stability ◽  
High Performance ◽  
Zinc Ion

Al3+ doping combined with lignin coating improves the structural stability and electrochemical performance of the modified α-MnO2, L + Al@α-MnO2.

Flexible coaxial fiber-shaped asymmetric supercapacitors based on manganese, nickel co-substituted cobalt carbonate hydroxides

2020 ◽  
Vol 8 (4) ◽  
pp. 1837-1848 ◽  
Author(s):  
Xueying Cao ◽  
Ying Liu ◽  
Yuxue Zhong ◽  
Liang Cui ◽  
Aitang Zhang ◽  
...  
Keyword(s):  
Carbon Fibers ◽  
Electrochemical Performances ◽  
Asymmetric Supercapacitor ◽  
Asymmetric Supercapacitors ◽  
Cobalt Carbonate ◽  
Carbonate Hydroxide

A wearable coaxial fiber-shaped asymmetric supercapacitor based on well-aligned Mn, Ni co-substituted Co carbonate hydroxide nanoneedle arrays on carbon fibers is successfully fabricated, and it exhibits excellent electrochemical performances.

Phosphorus-doped porous hollow carbon nanorods for high-performance sodium-based dual-ion batteries

2020 ◽  
Vol 8 (7) ◽  
pp. 4007-4016 ◽  
Author(s):  
Xiaoyan Wang ◽  
Shaofeng Wang ◽  
Kaixiang Shen ◽  
Shenggong He ◽  
Xianhua Hou ◽  
...  
Keyword(s):  
Electrochemical Performance ◽  
Structural Stability ◽  
High Performance ◽  
Electronic Conductivity ◽  
High Electronic Conductivity ◽  
Hollow Carbon ◽  
Phosphorus Doped

Phosphorus-doped hollow carbon nanorods with high electronic conductivity can maintain excellent structural stability and endow outstanding electrochemical performance in sodium-based dual-ion batteries.

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