Zobrazeno 1 - 10
of 102
pro vyhledávání: '"Christos Kordulis"'
Autor:
Ioannis Nikolopoulos, Eleana Kordouli, Nikolaos Mourgkogiannis, Hrissi K. Karapanagioti, Alexis Lycourghiotis, Christos Kordulis
Publikováno v:
Catalysts, Vol 13, Iss 6, p 1004 (2023)
This study aims to utilize biochars derived from residual biomass as supports for Ni-based catalysts. For the preparation of the biochars, byproducts of agro-industrial activities were used, such as espresso coffee residue (C) and rice husks (R). Suf
Externí odkaz:
https://doaj.org/article/d45378f5f720491596091d78b569b673
Autor:
George Petropoulos, John Zafeiropoulos, Eleana Kordouli, Alexis Lycourghiotis, Christos Kordulis, Kyriakos Bourikas
Publikováno v:
Energies, Vol 16, Iss 11, p 4333 (2023)
The efficiency of Ni/TiO2 catalysts for renewable diesel production was evaluated in the present study. Two series of catalysts were synthesized and characterized using various physicochemical techniques (N2 physisorption, XRD, SEM, XPS, H2-TPR, and
Externí odkaz:
https://doaj.org/article/dcd108a59a7541d29e81b525005195bd
Autor:
Ioannis Nikolopoulos, George Kogkos, Vasiliki D. Tsavatopoulou, Eleana Kordouli, Kyriakos Bourikas, Christos Kordulis, Alexis Lycourghiotis
Publikováno v:
Nanomaterials, Vol 13, Iss 3, p 616 (2023)
Two nickel alumina catalysts containing 60 wt. % Ni were synthesized by wet impregnation and co-precipitation in order to study the effect of preparation methods on the catalytic efficiency concerning the transformation of sunflower oil into green di
Externí odkaz:
https://doaj.org/article/d09d84223e454b94aa1fce9bc06b579f
Autor:
Sotiris Lycourghiotis, Eleana Kordouli, John Zafeiropoulos, Christos Kordulis, Kyriakos Bourikas
Publikováno v:
Molecules, Vol 27, Iss 3, p 643 (2022)
Four Ni catalysts and one Mo–Ni catalyst supported on montmorillonite were synthesized, characterized by various techniques and evaluated, under solvent-free conditions, for the production of green diesel from waste cooking oil. The optimum Ni cont
Externí odkaz:
https://doaj.org/article/44981019e7f74c27b7b71d5f06191877
Autor:
Eleni Tella, Antonios Trimpalis, Athanasios Tsevis, Christos Kordulis, Alexis Lycourghiotis, Soghomon Boghosian, Kyriakos Bourikas
Publikováno v:
Catalysts, Vol 11, Iss 3, p 322 (2021)
Vanadia/titania catalysts were synthesized by the equilibrium deposition filtration (EDF) method, which is a synthesis route that follows a molecular-level approach. The type of interfacial deposition as well as the interfacial speciation of the depo
Externí odkaz:
https://doaj.org/article/24202dfdeb2a42e6a630f3d5d34bd673
Autor:
Mantha Gousi, Eleana Kordouli, Kyriakos Bourikas, Emmanouil Symianakis, Spyros Ladas, Christos Kordulis, Alexis Lycourghiotis
Publikováno v:
Energies, Vol 13, Iss 14, p 3707 (2020)
A series of nickel–alumina catalysts promoted by copper containing 1, 2, and 5 wt. % Cu and 59, 58, and 55 wt. % Ni, respectively, (symbols: 59Ni1CuAl, 58Ni2CuAl, 55Ni5CuAl) and a non-promoted catalyst containing 60 wt. % Ni (symbol: 60NiAl) were p
Externí odkaz:
https://doaj.org/article/a98b7bd8c0674993922395b70620d7f6
Autor:
John Kyriakopoulos, Eleana Kordouli, Kyriakos Bourikas, Christos Kordulis, Alexis Lycourghiotis
Publikováno v:
Applied Sciences, Vol 9, Iss 9, p 1958 (2019)
The majority of the photocatalysts studied for azo-dye degradation are based on semiconductor materials. Studies reported on non-semiconducting materials are very scarce. In the present work, we studied the fullerene (C60) ability to accelerate photo
Externí odkaz:
https://doaj.org/article/f5a85f3e8d7f48eba7ac64542651ef7e
Autor:
Georgios Zafeiropoulos, Nikolaos Nikolopoulos, Eleana Kordouli, Labrini Sygellou, Kyriakos Bourikas, Christos Kordulis, Alexis Lycourghiotis
Publikováno v:
Catalysts, Vol 9, Iss 3, p 210 (2019)
The transformation of sunflower oil (SO) and waste cooking oil (WCO) into green diesel over co-precipitated nickel⁻zirconia catalysts was studied. Two series of catalysts were prepared. The first series included catalysts with various Ni loadings p
Externí odkaz:
https://doaj.org/article/a3153d1bc3cf4971b2dea80c8eea4d29
Autor:
Antonios Tribalis, George D. Panagiotou, Kyriakos Bourikas, Labrini Sygellou, Stella Kennou, Spyridon Ladas, Alexis Lycourghiotis, Christos Kordulis
Publikováno v:
Catalysts, Vol 6, Iss 1, p 11 (2016)
Nickel catalysts are the most popular for steam reforming, however, they have a number of drawbacks, such as high propensity toward coke formation and intolerance to sulfur. In an effort to improve their behavior, a series of Ni-catalysts supported o
Externí odkaz:
https://doaj.org/article/02d1b2d4e0934f38bbf55bdebc485acd
Autor:
Athanasios A Koutinas, Vasilios Sypsas, Panagiotis Kandylis, Andreas Michelis, Argyro Bekatorou, Yiannis Kourkoutas, Christos Kordulis, Alexis Lycourghiotis, Ibrahim M Banat, Poonam Nigam, Roger Marchant, Myrsini Giannouli, Panagiotis Yianoulis
Publikováno v:
PLoS ONE, Vol 7, Iss 4, p e34350 (2012)
Delignified cellulosic material has shown a significant promotional effect on the alcoholic fermentation as yeast immobilization support. However, its potential for further biotechnological development is unexploited. This study reports the character
Externí odkaz:
https://doaj.org/article/0b7dd7fdfcb447838ff1e90f070ecb7c