Zobrazeno 1 - 10
of 114
pro vyhledávání: '"Ramiro Ruiz-Rosas"'
Autor:
Cristian Daniel Jaimes-Paez, Francisco José García-Mateos, Ramiro Ruiz-Rosas, José Rodríguez-Mirasol, Tomás Cordero, Emilia Morallón, Diego Cazorla-Amorós
Publikováno v:
Nanomaterials, Vol 13, Iss 22, p 2921 (2023)
The aim of this work is to establish the Oxygen Reduction Reaction (ORR) activity of self-standing electrospun carbon fiber catalysts obtained from different metallic salt/lignin solutions. Through a single-step electrospinning technique, freestandin
Externí odkaz:
https://doaj.org/article/dc0a9a9ee5f24e24b208772934022e13
Autor:
Al Mamun, Francisco José García-Mateos, Lilia Sabantina, Michaela Klöcker, Elise Diestelhorst, Ramiro Ruiz-Rosas, Juana María Rosas, José Rodríguez-Mirasol, Tomasz Blachowicz, Tomás Cordero
Publikováno v:
Polymers, Vol 15, Iss 20, p 4064 (2023)
In this study, electrospun carbon fiber electrodes were prepared by the carbonization of PAN–Fe3O4 electrospun fibers at 800 °C for their use as catalysts in the oxygen reduction reaction in an alkaline electrolyte. Magnetic nanofiber mats were fa
Externí odkaz:
https://doaj.org/article/43b39f76160348c89b977770cd6be830
Autor:
Behnam Hosseinzaei, Mohammad Jafar Hadianfard, Feridun Esmaeilzadeh, María del Carmen Recio-Ruiz, Ramiro Ruiz-Rosas, Juana M. Rosas, José Rodríguez-Mirasol, Tomás Cordero
Publikováno v:
Catalysts, Vol 13, Iss 5, p 854 (2023)
The aim of this study was to synthesize chemically activated carbons from different agricultural residues, i.e., pistachio shell (PS), bitter orange peel (OP), and saffron petal (SP), and subsequently to use them as supports for loading a Ni catalyst
Externí odkaz:
https://doaj.org/article/bf9151b40c334a7994c8a6e91ef537ca
Autor:
Javier Torres-Liñán, Ramiro Ruiz-Rosas, Juana María Rosas, José Rodríguez-Mirasol, Tomás Cordero
Publikováno v:
Materials, Vol 15, Iss 2, p 596 (2022)
A Zr-loaded P-containing biomass-derived activated carbon (ACPZr) has been tested for methanol dehydration between 450 and 550 °C. At earlier stages, methanol conversion was complete, and the reaction product was mainly dimethyl ether (DME), althoug
Externí odkaz:
https://doaj.org/article/a7d5d7ad9789437faeec6f5714099602
Publikováno v:
In Spectrochimica Acta Part A: Molecular and Biomolecular Spectroscopy 5 September 2017 184:299-307
Autor:
Ramiro Ruiz-Rosas, Francisco J. García-Mateos, María del Carmen Gutiérrez, José Rodríguez-Mirasol, Tomás Cordero
Publikováno v:
Frontiers in Materials, Vol 6 (2019)
The preparation of phosphorus-containing activated carbons and the effect of their surface chemistry and porosity on the performance as adsorbents of paracetamol are herein reported. A parent activated carbon is prepared by chemical activation of oli
Externí odkaz:
https://doaj.org/article/66f4f62ed1c4448eb334add72b8e4c30
Autor:
Francisco J. García-Mateos, Ramiro Ruiz-Rosas, Juana M. Rosas, José Rodríguez-Mirasol, Tomás Cordero
Publikováno v:
Frontiers in Materials, Vol 6 (2019)
Electrospinning is a suitable top-down technique for the preparation of polymeric fibers using high voltage electrical fields and solutions of the selected polymer of adequate viscosity and conductivity. The versatility of electrospinning allows accu
Externí odkaz:
https://doaj.org/article/d7f35c5ed3474f22bef570aae5e85e68
Publikováno v:
Frontiers in Materials, Vol 6 (2019)
The increasing worldwide energy consumption has contributed to both the vast growth of greenhouse emissions from carbon-containing fuels-based sources (coal, petroleum, etc.) and the depletion of the aforementioned sources. Given this scenario, the d
Externí odkaz:
https://doaj.org/article/cc2084bba991465a9f8f49636cfcfc54
Autor:
Jose Quintero-Ruiz, Ramiro Ruiz-Rosas, Javier Quílez-Bermejo, David Salinas-Torres, Diego Cazorla-Amorós, Emilia Morallón
Publikováno v:
C, Vol 7, Iss 2, p 32 (2021)
High-quality performance of catalysts is increasingly required to meet industry exigencies. However, chemical synthesis is often insufficient to maximize the potential properties of the catalysts. On the other hand, electrochemical synthesis has aris
Externí odkaz:
https://doaj.org/article/b8409d2934b042eaae3023460df5129b
Autor:
Ramiro Ruiz-Rosas, J.M. Rosas, Francisco J. García-Mateos, Tomás Cordero, José Rodríguez-Mirasol
Publikováno v:
Catalysis Today. 383:308-319
Porous carbon fibers catalysts have been prepared by electrospinning of Alcell lignin, a green carbon precursor, which could be obtained as by-product in wood-to-ethanol biorefineries. The addition of H3PO4, a well-known chemical activation agent, to