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Microwave Processing Technology for a Variety of Materials

A special issue of Materials (ISSN 1996-1944). This special issue belongs to the section "Manufacturing Processes and Systems".

Deadline for manuscript submissions: closed (28 February 2022) | Viewed by 2384

Special Issue Editor


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Guest Editor
Engineering Science and Mechanics, Pennsylvania State University, University Park, TX, USA
Interests: microwave processing of ceramics; composites; metals; low-thermal-expansion materials; ceramic processing; rad-waste management
Special Issues, Collections and Topics in MDPI journals

Special Issue Information

Dear Colleagues,

The application of microwave energy in material processing is now widely used for a variety of materials including ceramics, metals, polymers, composites, biomaterials, etc. However, success in the laboratory has not been, in many cases, translated to the marketplace. Recent new areas of microwave energy applications include powder metals, steel making, the sintering of 3D-printed objects, and used-tire recycling. However, the commercialization of microwave technology in these areas has not yet been successful. This Special Issue will accept original manuscripts on microwave energy applications to these and related fields. Special attention will be paid to manuscripts involving innovative techniques leading to their commercialization.

With immense pleasure, we invite you to submit a manuscript for this Special Issue. Full papers, communications and reviews are welcome.

Prof. Dr. Dinesh Agrawal
Guest Editor

Manuscript Submission Information

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Keywords

  • ceramics
  • biomaterials
  • powder metals
  • composites
  • waste recycling
  • 3D printing combined with microwave energy
  • commercialization of microwave material processing

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Published Papers (1 paper)

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Research

14 pages, 5994 KiB  
Article
Hydrogen Oxidation and Oxygen Reduction Reactions on an OsRu-Based Electrocatalyst Synthesized by Microwave Irradiation
by Ángela Selva-Ochoa, Javier Su-Gallegos, Pathiyammattom Joseph Sebastian, Lorena Magallón-Cacho and Edgar Borja-Arco
Materials 2021, 14(19), 5692; https://doi.org/10.3390/ma14195692 - 30 Sep 2021
Cited by 2 | Viewed by 1763
Abstract
This work presents an OsRu-based electrocatalyst synthesis, by a rapid and efficient method through microwave irradiation. The outstanding electrocatalyst shows a dual catalytic activity, demonstrating both: hydrogen oxidation and oxygen reduction reactions. The material is structural and morphologically characterized by FT-IR, X-ray diffraction, [...] Read more.
This work presents an OsRu-based electrocatalyst synthesis, by a rapid and efficient method through microwave irradiation. The outstanding electrocatalyst shows a dual catalytic activity, demonstrating both: hydrogen oxidation and oxygen reduction reactions. The material is structural and morphologically characterized by FT-IR, X-ray diffraction, EDS, and SEM, indicating nanoparticulated Os and Ru metallic phases with a crystallite size of ∼6 nm, calculated by the Scherrer equation. The metal nanoparticles are apparently deposited on a carbonaceous sponge-like morphology structure. Its electrochemical characterization is performed in 0.5 M H2SO4 by the rotating disk electrode technique, employing cyclic and linear sweep voltammetry. Two different ink treatments have been studied to improve the obtained polarization curves. The material is also tested in the presence of methanol for the oxygen reduction reaction, showing an important resistance to this contaminant, making it viable for its use in direct methanol fuel cells (DMFCs) as a cathode and in polymer electrolyte fuel cells (PEMFCs) as an anode as much as a cathode. Full article
(This article belongs to the Special Issue Microwave Processing Technology for a Variety of Materials)
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