{"title":"Controlling the Electrode Morphology and Surface Energy to Make Ethanol Fuel Cells Based on Pd-Assisted Etched Porous Silicon","authors":"O. V. Volovlikova, S. A. Gavrilov","doi":"10.1134/S207511332402045X","DOIUrl":null,"url":null,"abstract":"<p>The progress in making macro- and mesoporous layers of porous silicon formed through Pd-assisted etching is analyzed. Different formation times and etching solution temperatures (varying from 25 to 75°C) are taken as the parameters. The layers of porous silicon obtained exhibit ethanol electro-oxidation properties. High values of the dissolution rate of the porous silicon are confirmed at a temperature of 75°C resulting in dramatic thinning and decreasing the specific surface area of the macro- and mesoporous layers, respectively. The resulting porous layers have different surface energies and surface areas. The samples exhibit different rates of ethanol dehydrogenation and differ in the number of dehydrogenated ethanol molecules. This is promising to control the activity of the electrode material in ethanol fuel cells.</p>","PeriodicalId":586,"journal":{"name":"Inorganic Materials: Applied Research","volume":null,"pages":null},"PeriodicalIF":0.5000,"publicationDate":"2024-05-27","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":"0","resultStr":null,"platform":"Semanticscholar","paperid":null,"PeriodicalName":"Inorganic Materials: Applied Research","FirstCategoryId":"1085","ListUrlMain":"https://link.springer.com/article/10.1134/S207511332402045X","RegionNum":0,"RegionCategory":null,"ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":null,"EPubDate":"","PubModel":"","JCR":"Q4","JCRName":"MATERIALS SCIENCE, MULTIDISCIPLINARY","Score":null,"Total":0}
引用次数: 0
Abstract
The progress in making macro- and mesoporous layers of porous silicon formed through Pd-assisted etching is analyzed. Different formation times and etching solution temperatures (varying from 25 to 75°C) are taken as the parameters. The layers of porous silicon obtained exhibit ethanol electro-oxidation properties. High values of the dissolution rate of the porous silicon are confirmed at a temperature of 75°C resulting in dramatic thinning and decreasing the specific surface area of the macro- and mesoporous layers, respectively. The resulting porous layers have different surface energies and surface areas. The samples exhibit different rates of ethanol dehydrogenation and differ in the number of dehydrogenated ethanol molecules. This is promising to control the activity of the electrode material in ethanol fuel cells.
期刊介绍：
Inorganic Materials: Applied Research contains translations of research articles devoted to applied aspects of inorganic materials. Best articles are selected from four Russian periodicals: Materialovedenie, Perspektivnye Materialy, Fizika i Khimiya Obrabotki Materialov, and Voprosy Materialovedeniya and translated into English. The journal reports recent achievements in materials science: physical and chemical bases of materials science; effects of synergism in composite materials; computer simulations; creation of new materials (including carbon-based materials and ceramics, semiconductors, superconductors, composite materials, polymers, materials for nuclear engineering, materials for aircraft and space engineering, materials for quantum electronics, materials for electronics and optoelectronics, materials for nuclear and thermonuclear power engineering, radiation-hardened materials, materials for use in medicine, etc.); analytical techniques; structure–property relationships; nanostructures and nanotechnologies; advanced technologies; use of hydrogen in structural materials; and economic and environmental issues. The journal also considers engineering issues of materials processing with plasma, high-gradient crystallization, laser technology, and ultrasonic technology. Currently the journal does not accept direct submissions, but submissions to one of the source journals is possible.
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