Microwave‐assisted synthesis of cobalt‐polyoxometalate @carbon black nanocomposites and their electrocatalytic ability toward oxygen reduction reaction

2020 ◽  
Author(s):  
Sagar Ingavale ◽  
Indrajit Patil ◽  
Karuppanan Prabakaran ◽  
Anita Swami
Keyword(s):  
Carbon Black ◽  
Oxygen Reduction Reaction ◽  
Oxygen Reduction ◽  
Reduction Reaction ◽  
Microwave Assisted Synthesis ◽  
Microwave Assisted

Ultrafast microwave-assisted synthesis of nitrogen-doped carbons as electrocatalysts for oxygen reduction reaction

2018 ◽  
Vol 29 (30) ◽  
pp. 305708 ◽  
Author(s):  
Jingjing Xu ◽  
Ruifang Zhang ◽  
Shiyao Lu ◽  
Huan Liu ◽  
Zhaoyang Li ◽  
...  
Keyword(s):  
Oxygen Reduction Reaction ◽  
Oxygen Reduction ◽  
Reduction Reaction ◽  
Microwave Assisted Synthesis ◽  
Nitrogen Doped ◽  
Microwave Assisted

scholarly journals Green Microwave-Assisted Synthesis of CoFeRu-Based Electrocatalyst for the Oxygen Reduction Reaction

Materials ◽  
2021 ◽  
Vol 14 (7) ◽  
pp. 1662
Author(s):  
Antonia Sandoval ◽  
Edgar Borja ◽  
Lorena Magallón ◽  
Javier Su
Keyword(s):  
Oxygen Reduction Reaction ◽  
Oxygen Reduction ◽  
Rotating Disk ◽  
Reduction Reaction ◽  
Rotating Disk Electrode ◽  
Microwave Assisted Synthesis ◽  
X Ray ◽  
Microwave Assisted ◽  
Microscopy Technique ◽  
Microwave Absorbing

A simple and rapid synthesis of a CoFeRu-based electrocatalyst by a microwave-assisted method (using water as the microwave absorbing solvent) is reported in this work. Agglomerates with different sizes and shapes are observed by scanning electron microscopy technique. The energy dispersive X-ray spectroscopy shows a low atomic percentage of Co and similar atomic percentage of Fe and Ru. However, the X-ray diffraction exhibits only the presence of metallic Ru and Fe2O3 (hematite) phases. The oxygen reduction without and with 2 mol L−1 methanol is studied using the rotating disk electrode technique. The electrochemical kinetic parameters obtained are compared to a similar electrocatalyst reported in the literature, which was synthesized using a mixture of an organic solvent with DI water as the microwave absorbing solvent. An improvement on the activity of the electrocatalyst synthesized is observed, where high Tafel slopes are not observed. The electrocatalyst also showed tolerance to the presence of methanol during the oxygen reduction reaction.

scholarly journals Microwave-Assisted Synthesis of Nitrogen and Sulphur Doped Graphene Decorated with Antimony Oxide: An Effective Catalyst for Oxygen Reduction Reaction

Materials ◽  
2021 ◽  
Vol 15 (1) ◽  
pp. 10
Author(s):  
Nadia Garino ◽  
Adriano Sacco ◽  
Angelica Chiodoni ◽  
Candido F. Pirri ◽  
Micaela Castellino
Keyword(s):  
Oxygen Reduction Reaction ◽  
Oxygen Reduction ◽  
Photoelectron Spectroscopy ◽  
Antimony Oxide ◽  
Catalytic Performance ◽  
Reduction Reaction ◽  
Oxygen Absorption ◽  
Microwave Assisted Synthesis ◽  
One Pot ◽  
Microwave Assisted

In this study, we report on the facile synthesis of a novel electrocatalysts for the oxygen reduction reaction (ORR), based on reduced graphene oxide (RGO), functionalized with metallic and non-metallic elements. In particular, thanks to a fast one-pot microwave-assisted procedure, we induced, in the RGO graphene lattice, a combined doping with nitrogen and sulphur, and the simultaneous decoration with antimony oxide nanocrystals. The multi-doped–decorated material shows enhanced catalytic performance towards ORR, with respect to common nitrogen- or sulphur-doped carbon-based materials. The presence of co-doping is confirmed by transmission electron microscopy and X-ray photoelectron spectroscopy analysis. The detailed electrochemical characterization shows the simultaneous effects of dopant atoms on the catalytic behavior. In particular, the importance of nitrogen and sulphur atoms in driving the oxygen absorption, together with the role of antimony in enhancing the electrochemical performance toward the ORR, are discussed.

Yttria stabilized and surface activated platinum (PtxYOy) nanoparticles through rapid microwave assisted synthesis for oxygen reduction reaction

Nano Energy ◽  
2018 ◽  
Vol 46 ◽  
pp. 141-149 ◽  
Author(s):  
Robin Sandström ◽  
Eduardo Gracia-Espino ◽  
Guangzhi Hu ◽  
Andrey Shchukarev ◽  
Jingyuan Ma ◽  
...  
Keyword(s):  
Oxygen Reduction Reaction ◽  
Oxygen Reduction ◽  
Reduction Reaction ◽  
Microwave Assisted Synthesis ◽  
Microwave Assisted

scholarly journals Microwave-assisted pyrolysis of Pachira aquatica leaves as a catalyst for the oxygen reduction reaction

RSC Advances ◽  
2020 ◽  
Vol 10 (20) ◽  
pp. 11543-11550
Author(s):  
Sun-Tang Chang ◽  
Huan-Ping Jhong ◽  
Yu-Chung Chang ◽  
Chia-Chi Liu ◽  
Tai-Chin Chiang ◽  
...  
Keyword(s):  
Catalytic Activity ◽  
Carbon Black ◽  
Oxygen Reduction Reaction ◽  
Oxygen Reduction ◽  
Reduction Reaction ◽  
Microwave Oven ◽  
High Catalytic Activity ◽  
Microwave Assisted

In this study, biomimetic Mg–Nx–Cy from Pachira aquatica leaves were mixed with carbon black, in which the mixture was treated by a conventional microwave oven at 700 W and 2 min, exhibiting high catalytic activity for the oxygen reduction reaction.

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