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Development of PtGe and PtIn anodic catalysts supported on carbonaceous materials for DMFC
(Elsevier, 2014-01)
Bimetallic PtGe and PtIn catalysts (Ge/Pt and In/Pt molar ratios = 0.33, 17 wt.% Pt loading) were prepared over carbonaceous supports (carbon Vulcan, carbon nanotubes and structured mesoporous carbon). The liquid phase ...
Pt Electrocatalysts Supported on Functionalized Carbonaceous Materials
(Electrochemical Society, 2016-12)
Monometallic Pt catalysts (17%wt) were prepared over Vulcan carbon (VC) and multiwall carbon nanotubes (NT). These supports were functionalized with citric or nitric acid. The characteristics of the different functionalized ...
POTENTIOMETRIC SENSOR BASED ON SILVER SULFIDE NANOPARTICLES SUPPORTED IN CARBONACEOUS MATERIAL FOR THE DETECTION OF FREE CYANIDE
(Soc Brasileira Quimica, 2019-03-01)
Two sensors were synthesized for the detection of free cyanide (CN-), based on silver sulfide nanoparticles (Np-Ag2S) supported on Multiwall Carbon Nanotubes (MWCNT) and hierarchical porous carbon (HPC). The Ag2S/HPC400 ...
Promoting Effect of Tin in Platinum Electrocatalysts for Direct Methanol Fuel Cells (DMFC)
(Electrochemical Society, 2014-12)
Pt-Sn anodic catalysts supported on multiwall carbon nanotubes, mesoporous carbon and Vulcan carbon were prepared using a deposition-reduction technique with sodium borohydride, characterized by different techniques and ...
Infrared Spectroscopy of Carbonaceous-chondrite Inclusions in the Kapoeta Meteorite: Discovery of Nanodiamonds with New Spectral Features and Astrophysical Implications
(IOP Publishing, 2018-03-22)
We report the finding of nanodiamonds, coexisting with amorphous carbon, in carbonaceous-chondrite (CC) material from the Kapoeta achondritic meteorite by Fourier-transform infrared (FTIR) spectroscopy and micro-Raman ...
Desarrollo de electrocatalizadores anódicos para celdas de combustible (DMFC)
(2014-06-11)
Entre los diferentes tipos de celdas de combustible, las más apropiadas para suministrar energía a dispositivos portátiles, vehículos eléctricos y medios de transporte, son las de electrolito polimérico (PEMFCs) y metanol ...
Desenvolvimento de uma tecnologia para oxidação de H2S: escalonamento e prova de conceito
(Universidade Federal de Minas GeraisBrasilICB - INSTITUTO DE CIÊNCIAS BIOLOGICASPrograma de Pós-Graduação em Inovação Tecnológica e Propriedade IntelectualUFMG, 2022-04-07)
The use of e biogas obtained from different sources to generate electricity is an important opportunity for different sectors of the economy today. However, the presence of sulfide-based compounds, H2S, causes strong ...
Spent mushroom substrate is capable of physisorption-chemisorption of CO2
(2022-03-01)
No in-depth investigation exists on the feasibility of integrating hydrothermal carbonization (HTC) and pelletization into the process of making spent mushroom substrate (SMS), an agro-food residue from the commercial ...