scholarly journals Electrocatalytic study of NiO-MOF with activated carbon composites for methanol oxidation reaction

2021 ◽  
Vol 11 (1) ◽  
Author(s):  
Saadia Hanif ◽  
Naseem Iqbal ◽  
Tayyaba Noor ◽  
Neelam Zaman ◽  
K. Vignarooban

AbstractIn this work, the methanol oxidation reaction is investigated on Ni based metal organic frameworks (MOF) and its composites with biomass derived activated carbon. NiO-MOF and composites with activated carbon were synthesized using hydrothermal method. SEM, EDX, and XRD, FTIR, TGA techniques were used for characterization of composites. The electrochemical activity of catalysts for oxidation of methanol was tested using cyclic voltammetry (CV) in 1 M KOH and 3 M CH3OH on glassy carbon electrode in three electrode setup. The electrochemical performance shows the effect of activated carbon concentration on methanol oxidation. The electro-oxidation catalyzed by NiO-MOF with activated carbon (40 mg) composite exhibits a peak current density of 182.72 mA/cm2 at 0.89 V potential with a scan rate of 50 mV/s making it a potential catalyst for electrocatalysis of methanol.

Nanomaterials ◽  
2020 ◽  
Vol 10 (8) ◽  
pp. 1601
Author(s):  
Tayyaba Noor ◽  
Sadaf Pervaiz ◽  
Naseem Iqbal ◽  
Habib Nasir ◽  
Neelam Zaman ◽  
...  

In this work a novel bimetallic nickel oxide/copper oxide metal–organic framework (NiO/CuO MOF) has been developed by using two linkers: Benzene Dicarboxylic acid (BDC) and Pyrazine. The composites of NiO/CuO MOF with different amounts of reduced graphene oxide (rGO) were synthesized through a hydrothermal method and subsequently characterized by multiple significant techniques like XRD, SEM, EDX, FTIR and Raman IR for an investigation of their structural and morphological properties. The prepared series of material was later employed for electrochemical oxidation of methanol, tested by cyclic voltammetry (CV) in basic medium on a modified glassy carbon electrode (GCE). The electrochemical response depicts that increasing concentration of rGO enhances the electrocatalytic activity of the catalyst for methanol oxidation reaction (MOR). The catalyzed oxidation reaction of methanol by NiO/CuO MOF and rGO-NiO/CuO MOF composites give a superlative current density of 437. 28 mA/cm2 at 0.9 V potential at 50 mV/s scan rate. This activity makes it a promising catalytic material for electrolysis of methanol in direct methanol fuel cell (DMFC).


2019 ◽  
Vol 43 (8) ◽  
pp. 3273-3279 ◽  
Author(s):  
Karuvatta Nubla ◽  
Thulasi Radhakrishnan ◽  
N. Sandhyarani

A graphitic carbon nitride–titania nanocomposite has been synthesized as a catalyst support for Pt which enhanced the electrocatalytic methanol oxidation reaction.


Nanoscale ◽  
2020 ◽  
Vol 12 (42) ◽  
pp. 21687-21694 ◽  
Author(s):  
Na Wu ◽  
Meixu Zhai ◽  
Fei Chen ◽  
Xue Zhang ◽  
Ruihong Guo ◽  
...  

Owing to its facile synthesis, outstanding activity and high stability, Ni/N–C@500 composite is promising as a low-cost, efficient and CO-resistant electrocatalyst for methanol oxidation reaction (MOR).


Langmuir ◽  
2006 ◽  
Vol 22 (6) ◽  
pp. 2892-2898 ◽  
Author(s):  
Jin Luo ◽  
Peter N. Njoki ◽  
Yan Lin ◽  
Derrick Mott ◽  
Wang ◽  
...  

2020 ◽  
Vol 8 (20) ◽  
pp. 10337-10345 ◽  
Author(s):  
Guanjun Chen ◽  
Huaqiang Shan ◽  
Yan Li ◽  
Hongwei Bao ◽  
Tingwei Hu ◽  
...  

Hollow PtCu NPs is encapsulated into a carbon shell to prevent the degradation of PtCu alloys. Consequently, the S-H-PtxCuy@C catalyst exhibits excellent electrocatalytic activity and durability toward the methanol oxidation reaction (MOR).


2021 ◽  
Vol 510 ◽  
pp. 111710
Author(s):  
Preetha Chandrasekharan Meenu ◽  
Santanu Prasad Datta ◽  
Satyapaul A. Singh ◽  
Srikanta Dinda ◽  
Chanchal Chakraborty ◽  
...  

2014 ◽  
Vol 268 ◽  
pp. 824-830 ◽  
Author(s):  
Zuopeng Li ◽  
Muwu Li ◽  
Mingjia Han ◽  
Jianhuang Zeng ◽  
Yuexia Li ◽  
...  

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