Functionalized Carbon Nanotubes with Ni(II) Bipyridine Complexes as Efficient Catalysts for the Alkaline Oxygen Evolution Reaction

ACS Catalysis ◽  
2017 ◽  
Vol 7 (12) ◽  
pp. 8033-8041 ◽  
Author(s):  
Mohammad Tavakkoli ◽  
Magdalena Nosek ◽  
Jani Sainio ◽  
Fatemeh Davodi ◽  
Tanja Kallio ◽  
...  
Keyword(s):  
Carbon Nanotubes ◽  
Oxygen Evolution ◽  
Oxygen Evolution Reaction ◽  
Functionalized Carbon Nanotubes

scholarly journals Oxidative Deposition of Manganese Oxide Nanosheets on Nitrogen-Functionalized Carbon Nanotubes Applied in the Alkaline Oxygen Evolution Reaction

ACS Omega ◽  
2018 ◽  
Vol 3 (9) ◽  
pp. 11216-11226 ◽  
Author(s):  
Hendrik Antoni ◽  
Dulce M. Morales ◽  
Qi Fu ◽  
Yen-Ting Chen ◽  
Justus Masa ◽  
...  
Keyword(s):  
Carbon Nanotubes ◽  
Manganese Oxide ◽  
Oxygen Evolution ◽  
Oxygen Evolution Reaction ◽  
Functionalized Carbon Nanotubes

Tuning the oxidation state of manganese oxide nanoparticles on oxygen- and nitrogen-functionalized carbon nanotubes for the electrocatalytic oxygen evolution reaction

2017 ◽  
Vol 19 (28) ◽  
pp. 18434-18442 ◽  
Author(s):  
Hendrik Antoni ◽  
Wei Xia ◽  
Justus Masa ◽  
Wolfgang Schuhmann ◽  
Martin Muhler
Keyword(s):  
Carbon Nanotubes ◽  
Manganese Oxide ◽  
Oxygen Evolution ◽  
Oxidation State ◽  
Oxygen Evolution Reaction ◽  
Oxide Nanoparticles ◽  
Functionalized Carbon Nanotubes ◽  
Manganese Oxide Nanoparticles

The oxidation state of manganese oxide nanoparticles can be more easily changed when using nitrogen-functionalized carbon nanotubes as the support.

One-step synthesis of multi-walled carbon nanotubes/ultra-thin Ni(OH)2 nanoplate composite as efficient catalysts for water oxidation

2014 ◽  
Vol 2 (30) ◽  
pp. 11799-11806 ◽  
Author(s):  
Xuemei Zhou ◽  
Zhaoming Xia ◽  
Zhiyun Zhang ◽  
Yuanyuan Ma ◽  
Yongquan Qu
Keyword(s):  
Carbon Nanotubes ◽  
Hydrothermal Synthesis ◽  
Oxygen Evolution ◽  
Oxygen Evolution Reaction ◽  
Water Oxidation ◽  
Highly Efficient ◽  
Multi Walled Carbon Nanotubes ◽  
One Step ◽  
Walled Carbon Nanotubes

One-step hydrothermal synthesis of ultra-thin β-Ni(OH)2 nanoplates (1.5–3.0 nm thickness) and their composite with multi-walled carbon nanotubes in the absence of surfactants function as highly efficient and stable electrocatalysts for oxygen evolution reaction.

Chemically Coupled Cobalt Oxide Nanosheets Decorated onto the Surface of Multiwall Carbon Nanotubes for Favorable Oxygen Evolution Reaction

2021 ◽  
Vol 21 (4) ◽  
pp. 2660-2667
Author(s):  
Abdul Qayoom Mugheri ◽  
Aneela Tahira ◽  
Umair Aftab ◽  
Adeel Liaquat Bhatti ◽  
Ramesh Lal ◽  
...  
Keyword(s):  
Carbon Nanotubes ◽  
Composite Material ◽  
Cobalt Oxide ◽  
Oxygen Evolution ◽  
Oxygen Evolution Reaction ◽  
Electrochemical Impedance ◽  
Multiwall Carbon Nanotubes ◽  
Alkaline Media ◽  
Transfer Resistance ◽  
Multiwall Carbon

Cobalt oxide has been widely investigated among potential transition metal oxides for the electrochemical energy conversion, storage, and water splitting. However, they have inherently low electronic conductivity and high corrosive nature in alkaline media. Herein, we propose a promising and facile approach to improve the conductivity and charge transport of cobalt oxide Co3O4 through chemical coupling with well-dispersed multiwall carbon nanotubes (MWCNTs) during hydrothermal treatment. The morphology of prepared composite material consisting of nanosheets which are anchored on the MWCNTs as confirmed by scanning electron microscopy (SEM). A cubic crystalline system is exhibited by the cobalt oxide as confirmed by the X-ray diffraction study. The Co, O, and C are the only elements present in the composite material. FTIR study has indicated the successful coupling of cobalt oxide with MWCNTs. The chemically coupled cobalt oxide onto the surface of MWCNTs composite is found highly active towards oxygen evolution reaction (OER) with a low onset potential 1.44 V versus RHE, low overpotential 262 mV at 10 mAcm-2 and small Tafel slope 81 mV dec-1. For continuous operation of 40 hours during durability test, no decay in activity was recorded. Electrochemical impedance study further revealed a low charge transfer resistance of 70.64 Ohms for the composite material during the electrochemical reaction and which strongly favored OER kinetics. This work provides a simple, low cost, and smartly designing electrocatalysts via hydrothermal reaction for the catalysis and energy storage applications.

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