6533b872fe1ef96bd12d4408
RESEARCH PRODUCT
Confident methods for the evaluation of the hydrogen content in nanoporous carbon microfibers
Andrés CantareroJ. M. AmoMario CulebrasAntonio M. LópezAntonio MadroñeroConcepción Domingosubject
ArgonMaterials sciencebusiness.product_categoryNano ExpressHydrogenRaman dispersionchemistry.chemical_elementNanochemistryNanotechnologyChemical vapor depositionCondensed Matter PhysicsNanoporous materialsSurface tensionsymbols.namesakeNanoporeMaterials Science(all)chemistryChemical engineeringMicrofibersymbolsChemical vapor depositionGeneral Materials SciencePhysics::Atomic PhysicsbusinessRaman spectroscopydescription
Abstract Nanoporous carbon microfibers were grown by chemical vapor deposition in the vapor-liquid solid mode using different fluid hydrocarbons as precursors in different proportions. The as-grown samples were further treated in argon and hydrogen atmospheres at different pressure conditions and annealed at several temperatures in order to deduce the best conditions for the incorporation and re-incorporation of hydrogen into the microfibers through the nanopores. Since there are some discrepancies in the results on the hydrogen content obtained under vacuum conditions, in this work, we have measured the hydrogen content in the microfibers using several analytical methods in ambient conditions: surface tension, mass density, and Raman measurements. A discussion on the validity of the results obtained through the correlation between them is the purpose of the present work.
| year | journal | country | edition | language |
|---|---|---|---|---|
| 2012-10-01 |