Exploració per autor "Serafin, Jaroslaw"
Ara es mostren els items 1-13 de 13
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A straightforward method to prepare supported Au clusters by mechanochemistry and its application in photocatalysis
Chen, Yufen; Soler Turu, Lluís; Xie, Chenyang; Vendrell Villafruela, Xavier; Serafin, Jaroslaw; Crespo Artiaga, Daniel; Llorca Piqué, Jordi (Elsevier, 2020-12)
Article
Accés obertReducing the metal particle size on semiconductor-based materials from a few nanometers down to well-dispersed clusters or single atoms has been demonstrated to be an effective strategy to enhance the photocatalytic ... -
Activated carbon modification towards efficient catalyst for high value-added products synthesis from alpha-pinene
Srenscek Nazzal, Joanna; Miadlicki, Piotr; Wróblewska, Agnieszka; Serafin, Jaroslaw; Michalkiewicz, Beata (Multidisciplinary Digital Publishing Institute (MDPI), 2021-12-17)
Article
Accés obertDT0-activated carbons modified with HCl and HNO3 acids, which were used for the first time in the catalytic process of alpha-pinene isomerization, are presented in this study. The carbon materials DT0, DT0_HCl, DT0_HNO3, ... -
Carbonaceous catalysts from orange pulp for limonene oxidation
Wróblewska, Agnieszka; Serafin, Jaroslaw; Gawarecka, Alicja; Miadlicki, Piotr; Urbas, Karolina; Koren, Zvi C.; Llorca Piqué, Jordi; Michalkiewicz, Beata (2019-01-01)
Article
Accés obertThe possibility of orange pulp utilization for nanoporous carbons production was investigated. Moreover, processing the obtained materials as limonene oxidation catalysts was studied as well. Limonene was separated from ... -
Computer analysis of the effect of activation temperature on the microporous structure development of activated carbon derived from common polypody
Kwiatkowski, Miroslaw; Serafin, Jaroslaw; Booth, Andy M.; Michalkiewicz, Beata (Multidisciplinary Digital Publishing Institute (MDPI), 2021-06-01)
Article
Accés obertThis paper presents the results of a computer analysis of the effect of activation process temperature on the development of the microporous structure of activated carbon derived from the leaves of common polypody (Polypodium ... -
Hydrogen photoproduction on TiO2-reduced graphene oxide hybrid materials from water-ethanol mixture
Serafin, Jaroslaw; Kusiak-Nejman, Ewelina; Wanag, Agnieszka; Morawski, Antoni W.; Llorca Piqué, Jordi (2021-09-01)
Article
Accés obertTitanium dioxide mixed with reduced graphene oxide (rGO) has been tested in the photoproduction of hydrogen using UV light from water-ethanol combination in gas phase. The presence of the reduced graphene oxide in TiO2/rGO ... -
Macroporous silicon coated with M/TiO2 (M=Au,Pt) as a highly efficient photoreactor for hydrogen production
Serafin, Jaroslaw; Soler Turu, Lluís; Vega Bru, Didac; Rodríguez Martínez, Ángel; Llorca Piqué, Jordi (2020-03-07)
Article
Accés obertMacroporous silicon disks containing ordered channels of 2 µm side and 0.2 mm length (9 × 106 channels cm-2) have been functionalized with a thin layer of Au/TiO2 and Pt/TiO2 photocatalysts and tested in the photoproduction ... -
Nanoshaped cerium oxide with nickel as a non-noble metal catalyst for CO2 thermochemical reactions
Serafin, Jaroslaw; Llorca Piqué, Jordi (2023-04-01)
Article
Accés obertFour different nanoshapes of cerium dioxide have been prepared (polycrystals, rods, cubes, and octahedra) and have been decorated with different metals (Ru, Pd, Au, Pt, Cu, and Ni) by incipient wetness impregnation (IWI) ... -
Photocatalytic hydrogen production from alcohol aqueous solutions over TiO2-activated carbon composites decorated with Au and Pt
Serafin, Jaroslaw; Ouzzine, Mohammed; Srensce-Nazzal, Joanna; Llorca Piqué, Jordi (2022-03)
Article
Accés obertNanocomposites based on titanium dioxide loaded with metal nanoparticles (Au and Pt) and activated carbon were synthesized and tested for hydrogen photogeneration in the gas phase using a mixture of alcohol-water (methanol, ... -
Preparation of low-cost activated carbons from amazonian nutshells for CO2 storage
Serafin, Jaroslaw; Ouzzine, Mohammed; Cruz Junior, Orlando F.; Srensce-Nazzal, Joanna (2021-01-01)
Article
Accés restringit per política de l'editorialLow-cost carbonaceous adsorbents with microporous structures and a moderate specific surface area (up to 1630 m2 g-1) were prepared from different amazonian nutshells by one-step chemical activation with KOH for CO2 storage. ... -
Promising activated carbons derived from common oak leaves and their application in CO2 storage
Serafin, Jaroslaw; Cruz Junior, Orlando F. (Elsevier, 2022-06)
Article
Accés restringit per política de l'editorialA novel biomass-based carbon material was successfully prepared from Common Oak leaves by KOH chemical activation in combination with heat treatment (600–900 °C) for CO2 capture.The textural and surface characteristics of ... -
Promising photocatalysts based on nanoshaped TiO2- rGO composite doped with metals (Pt and Cu) for hydrogen photoproduction
Pollap, Aleksandra; Serafin, Jaroslaw; Serrano Carreño, M. Isabel; Srenscek Nazzal, Joanna; Llorca Piqué, Jordi (Elsevier, 2022-12-01)
Article
Accés restringit per política de l'editorialPhotocatalysts based on TiO2 and its modification have become popular as promising materials for the sustainable photoproduction of hydrogen. In this work, novel Pt - Cu - TiO2 composites with different TiO2 nanoshapes and ... -
The new tailored nanoporous carbons from the common polypody (Polypodium vulgare): The role of textural properties for enhanced CO2 adsorption
Serafin, Jaroslaw; Kielbasa, Karolina; Michalkiewicz, Beata (2022-02)
Article
Accés obertThe one-step synthesis of new tailored nanoporous carbons (NCs) from the common polypody (Polypodium vulgare) as feedstock for the first time was presented. The significance of nitrogen flow (2.25 – 30 dm3/h) and temperature ... -
Titanium dioxide and nanoshaped ceria for solar hydrogen production
Serafin, Jaroslaw (Universitat Politècnica de Catalunya, 2022-04-21)
Tesi
Accés obertThis work facuses on the study of these processes on Ti02 and Ce02, respectively. Although the development of photocatalytic research with the use of semiconductor photocatalysts does not last longer than about 40 years, ...