A copper complex covalently grafted on carbon nanotubes and reduced graphene oxide promotes oxygen reduction reaction activity and catalyst stability

RSC Advances ◽  
2015 ◽  
Vol 5 (81) ◽  
pp. 66487-66493 ◽  
Author(s):  
Ru-Chun Wang ◽  
Tian-Liang Yin ◽  
Ping-Jie Wei ◽  
Jin-Gang Liu
Keyword(s):  
Carbon Nanotubes ◽  
Graphene Oxide ◽  
Copper Complex ◽  
Reduction Process ◽  
Reduction Reaction ◽  
Covalent Immobilization ◽  
Catalyst Stability ◽  
Oxygen Reduction Reaction Activity ◽  
Reduced Graphene ◽  
Orr Activity

Covalent immobilization of a copper complex on CNTs or rGO remarkably improves the catalyst ORR activity and stability compared with that of the physisorbed counterparts, and proximal dinuclear Cu sites on flat rGO effectively promote the oxygen 4e− reduction process.

Bio-inspired multinuclear copper complexes covalently immobilized on reduced graphene oxide as efficient electrocatalysts for the oxygen reduction reaction

2015 ◽  
Vol 51 (35) ◽  
pp. 7455-7458 ◽  
Author(s):  
Yue-Ting Xi ◽  
Ping-Jie Wei ◽  
Ru-Chun Wang ◽  
Jin-Gang Liu
Keyword(s):  
Graphene Oxide ◽  
Oxygen Reduction Reaction ◽  
Copper Complex ◽  
Copper Complexes ◽  
Reduction Reaction ◽  
Alkaline Media ◽  
Long Term Stability ◽  
Reduced Graphene ◽  
Orr Activity

A bio-inspired multinuclear copper complex covalently immobilized on graphene exhibited high ORR activity and long-term stability in alkaline media.

Fast prediction of oxygen reduction reaction activity on carbon nanotubes with a localized geometric descriptor

2020 ◽  
Vol 22 (2) ◽  
pp. 890-895 ◽  
Author(s):  
Kunran Yang ◽  
Jeremie Zaffran ◽  
Bo Yang
Keyword(s):  
Carbon Nanotubes ◽  
Structural Optimization ◽  
Oxygen Reduction Reaction ◽  
Oxygen Reduction ◽  
Reduction Reaction ◽  
Oxygen Reduction Reaction Activity ◽  
Orr Activity ◽  
Fast Prediction

By using the pyramidalization angle as a localized geometric descriptor for oxygen reduction reaction (ORR) activity of carbon nanotubes (CNTs), we show the ORR activity of these systems can be readily predicted with mere structural optimization of CNTs.

scholarly journals Hydrated FePO4 nanoparticles supported on P-doped RGO show enhanced ORR activity compared to their dehydrated form in an alkaline medium

RSC Advances ◽  
2019 ◽  
Vol 9 (42) ◽  
pp. 24654-24658 ◽  
Author(s):  
Zubair Ahmed ◽  
Ritu Rai ◽  
Rajinder Kumar ◽  
Takahiro Maruyama ◽  
Vivek Bagchi
Keyword(s):  
Graphene Oxide ◽  
Oxygen Reduction Reaction ◽  
Oxygen Reduction ◽  
Reduced Graphene Oxide ◽  
Alkaline Medium ◽  
Reduction Reaction ◽  
Hydrothermal Growth ◽  
Reduced Graphene ◽  
One Step ◽  
Orr Activity

One-step hydrothermal growth of FePO4 nanoparticles (15–25 nm) uniformly decorated on the P-doped reduced graphene oxide (PRGO) was studied for oxygen reduction reaction (ORR) activity.

scholarly journals Oxygen reduction reaction activity of an iron phthalocyanine/graphene oxide nanocomposite

RSC Advances ◽  
2021 ◽  
Vol 11 (26) ◽  
pp. 15927-15932
Author(s):  
Kenichiro Irisa ◽  
Kazuto Hatakeyama ◽  
Soichiro Yoshimoto ◽  
Michio Koinuma ◽  
Shintaro Ida
Keyword(s):  
Graphene Oxide ◽  
Oxygen Reduction Reaction ◽  
Oxygen Reduction ◽  
Reduction Reaction ◽  
Iron Phthalocyanine ◽  
Oxygen Reduction Reaction Activity ◽  
Orr Activity

We demonstrate from both experimental and theoretical viewpoints that an iron phthalocyanine/graphene oxide nanocomposite directly synthesized on electrode exhibits high ORR activity.

scholarly journals Fabrication of polyoxometalate-modified palladium–nickel/reduced graphene oxide alloy catalysts for enhanced oxygen reduction reaction activity

RSC Advances ◽  
2021 ◽  
Vol 11 (62) ◽  
pp. 39118-39129
Author(s):  
Fereshteh Dehghani Sanij ◽  
Prabhuraj Balakrishnan ◽  
Huaneng Su ◽  
Lindiwe Khotseng ◽  
Qian Xu
Keyword(s):  
Graphene Oxide ◽  
Oxygen Reduction Reaction ◽  
Oxygen Reduction ◽  
Reduced Graphene Oxide ◽  
Reduction Reaction ◽  
Alkaline Media ◽  
Oxygen Reduction Reaction Activity ◽  
Reduced Graphene ◽  
Alloy Catalysts

A novel nanocatalyst, polyoxometalate-modified palladium–nickel/reduced graphene oxide (Pd8Ni2/rGO-POM), is prepared and served as an effective ORR nanomaterial in alkaline media.

scholarly journals Synthesis of Highly Reduced Graphene Oxide for Supercapacitor

2016 ◽  
Vol 2016 ◽  
pp. 1-7 ◽  
Author(s):  
Chubei Wang ◽  
Jianwei Zhou ◽  
Feipeng Du
Keyword(s):  
Graphene Oxide ◽  
Specific Capacitance ◽  
Reduced Graphene Oxide ◽  
Surface Area ◽  
Current Density ◽  
Solid Phase ◽  
Reduction Process ◽  
Interlayer Spacing ◽  
Reduction Reaction ◽  
Reduced Graphene

A facile method to synthesize highly reduced graphene oxide in solid phase was developed. The reduced graphene oxide was scarcely prepared in solid phase. Solid substances act as spacers and pillaring agents. Sheets can not be close to each other in reduction process, and sheets agglomeration might not form. After reduction reaction is complete, the spacers and pillaring agents are removed. The average interlayer spacing and surface area of product are bigger than those of reduced graphene oxide. The product has few-layered sheet, and the ratio of carbon to oxygen is high, which might imply that the product is more similar to graphene compared to reduced graphene oxide. The specific capacitance of product is almost three times higher than that of reduced graphene oxide at the same current density.

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