|
1.
|
|
165 p, 21.3 MB |
Boosting magneto-ionic effects in Co-oxide films by electrolyte-gating
/
Gonçalves Martins, Carla Sofia ;
Menéndez Dalmau, Enric, dir. ;
Pellicer Vilà, Eva M. (Eva Maria), dir. ;
Sort Viñas, Jordi, dir.
Aquesta tesi té com a objectiu millorar la migració d'ions oxigen i els efectes magneto-iònics concomitants en pel·lícules d'òxid de cobalt paramagnètiques, l'actuació de les quals es duu a terme en un electròlit mitjançant l'aplicació d'un voltatge extern (porta). [...]
Esta tesis tiene como objetivo mejorar la migración de iones oxígeno y los efectos magneto-iónicos concomitantes en películas de óxido de cobalto paramagnéticas, cuya actuación se lleva a cabo en un electrolito mediante la aplicación de un voltaje externo (puerta). [...]
This Thesis is aimed at boosting oxygen ion motion and the concomitant magneto-ionic effects in electrolyte-gated paramagnetic cobalt oxide (Co-oxide) films using three different approaches: thickness reduction of the Co-oxide films, variation of electrolyte composition, and defect engineering in the films. [...]
2023
|
|
|
2.
|
|
11 p, 1.8 MB |
Live synthesis of selective carbon dots as fluorescent probes for cobalt determination in water with an automatic microanalyzer
/
Pascual-Esco, Alex (Universitat Autònoma de Barcelona. Departament de Química) ;
Lleonart, Pere (Universitat Autònoma de Barcelona. Departament de Química) ;
Calvo-Lopez, Antonio (Universitat Autònoma de Barcelona. Departament de Química) ;
Alonso Chamarro, Julián (Universitat Autònoma de Barcelona. Departament de Química) ;
Puyol Bosch, M. del Mar (Universitat Autònoma de Barcelona. Departament de Química)
A new strategy integrating the straight synthesis of carbon dots (CDs) and their direct use for the determination of heavy metals by means of fuorescence quenching is presented. The proposal consists of a modular analyzer, which includes a low temperature co-fred ceramics (LTCC) microreactor for the synthesis of CDs and a cyclic olefn copolymer (COC) microfuidic platform, which automatically performs a reverse fow injection analysis (rFIA) protocol for the determination of heavy metal ions in water by CD fuorescence quenching. [...]
2023 -  10.1007/s00604-023-05975-w
Mikrochimica acta, Vol. 190, Issue 10 (September 2023) , art. 400
|
|
|
3.
|
|
6 p, 557.9 KB |
Well-Defined β-Diketiminatocobalt(II) Complexes for Alkene Cyclohydroamination of Primary Amines
/
Lepori, Clément (Université Paris-Sud. Institut de Chimie Moléculaire et des Matériaux d'Orsay) ;
Gómez-Orellana Seguín, Pablo (Universitat Autònoma de Barcelona. Departament de Química) ;
Ouharzoune, Allissa (Université Paris-Sud. Institut de Chimie Moléculaire et des Matériaux d'Orsay) ;
Guillot, Régis (Université Paris-Sud. Institut de Chimie Moléculaire et des Matériaux d'Orsay) ;
Lledós, Agustí (Universitat Autònoma de Barcelona. Departament de Química) ;
Ujaque Pérez, Gregori (Universitat Autònoma de Barcelona. Departament de Química) ;
Hannedouche, Jérôme (Université Paris-Sud. Institut de Chimie Moléculaire et des Matériaux d'Orsay)
A well-defined low-coordinate β-diketiminatocobalt(II) alkyl complex is reported as an active precatalyst for the selective alkene cyclohydroamination of unprotected primary amines under mild conditions (rt-90 °C). [...]
2018 - 10.1021/acscatal.8b00631
ACS catalysis, Vol. 8, Issue 5 (May 2018) , p. 4446-4451
|
|
|
4.
|
|
3 p, 519.3 KB |
Cobalt Nanocomposites as Catalysts for Carbon Dioxide Conversion to Methanol †
/
Moral Vico, Javier (Universitat Autònoma de Barcelona. Departament d'Enginyeria Química, Biològica i Ambiental) ;
Carrasco García, Anna (Universitat Autònoma de Barcelona. Departament d'Enginyeria Química, Biològica i Ambiental) ;
Sanchez, Antoni (Universitat Autònoma de Barcelona. Departament d'Enginyeria Química, Biològica i Ambiental)
Carbon capture and utilisation (CCU), has arisen as an alternative to the reduction of CO concentration in the atmosphere by converting it into value-added products. CO conversion to methanol presents certain drawbacks, such as high pressure and temperature conditions and, to solve these issues, new materials are being investigated. [...]
2022 - 10.3390/ECP2022-12614
Engineering proceedings, Vol. 19, Issue 1 (May 2022) , art. 32
|
|
|
5.
|
|
19 p, 4.6 MB |
Cobalt molybdenum nitride-based nanosheets for seawater splitting
/
Wang, Xiang (Universitat de Barcelona. Departament d'Enginyeria Electrònica i Biomèdica) ;
Han, Xu (Institut Català de Nanociència i Nanotecnologia) ;
Du, Ruifeng (Institut de Recerca en Energia de Catalunya) ;
Xing, Congcong (Institut de Recerca en Energia de Catalunya) ;
Qi, Xueqiang (Chongqing University. College of Chemistry and Chemical Engineering) ;
Liang, Zhifu (Institut Català de Nanociència i Nanotecnologia) ;
Guardia, Pablo (Institut de Recerca en Energia de Catalunya) ;
Arbiol i Cobos, Jordi (Institut Català de Nanociència i Nanotecnologia) ;
Cabot, Andreu (Institució Catalana de Recerca i Estudis Avançats) ;
Li, Junshan (Chengdu University. Institute of Advanced Study)
The development of cost-effective bifunctional catalysts for water electrolysis is both a crucial necessity and an exciting scientific challenge. Herein, a simple approach based on a metal-organic framework sacrificial template to preparing cobalt molybdenum nitride supported on nitrogen-doped carbon nanosheets is reported. [...]
2022 - 10.1021/acsami.2c09272
ACS applied materials & interfaces, Vol. 14, issue 37 (Sep. 2022) , p. 41924-41933
|
|
|
6.
|
|
29 p, 3.0 MB |
Critical role of phosphorus in hollow structures cobalt-based phosphides as bifunctional catalysts for water splitting
/
Zhang, Wei (KU Leuven. Department of Materials Engineering) ;
Han, Ning (KU Leuven. Department of Materials Engineering) ;
Luo, Jiangshui (Sichuan University. College of Materials Science and Engineering) ;
Han, Xu (Institut Català de Nanociència i Nanotecnologia) ;
Feng, Shihui (Stockholm University. Department of Materials and Environmental Chemistry) ;
Guo, Wei (KU Leuven. Department of Materials Engineering) ;
Xie, Sijie (KU Leuven. Department of Materials Engineering) ;
Zhou, Zhenyu (KU Leuven. Department of Materials Engineering) ;
Subramanian, Palaniappan (KU Leuven. Department of Materials Engineering) ;
Wan, Kai (KU Leuven. Department of Materials Engineering) ;
Arbiol i Cobos, Jordi (Institut Català de Nanociència i Nanotecnologia) ;
Zhang, Chi (Wuyi University. School of Applied Physics and Materials) ;
Liu, Shaomin (Beijing University of Chemical Technology. College of Chemical Engineering) ;
Xu, Maowen (Southwest University. Key Laboratory of Luminescent and Real-Time Analytical Chemistry) ;
Zhang, Xuan (KU Leuven. Department of Materials Engineering) ;
Fransaer, Jan (KU Leuven.Department of Materials Engineering)
Cobalt phosphides electrocatalysts have great potential for water splitting, but the unclear active sides hinder the further development of cobalt phosphides. Wherein, three different cobalt phosphides with the same hollow structure morphology (CoP-HS, CoP-HS, CoP-HS) based on the same sacrificial template of ZIF-67 are prepared. [...]
2022 - 10.1002/smll.202103561
Small, Vol. 18, issue 4 (Jan. 2022) , art. 2103561
|
|
|
7.
|
|
11 p, 1.6 MB |
Facile preparation of glycine-based mesoporous graphitic carbons with embedded cobalt nanoparticles
/
Wang, Wenhai (Institut de Ciència de Materials de Barcelona) ;
Tesio, Alvaro Y. (Centro de Investigación y Desarrollo en Materiales Avanzados y Almacenamiento de Energía de Jujuy) ;
Olivares-Marín, Mara (Universidad de Extremadura. Departamento de Ingeniería Mecánica, Energética y de los Materiales) ;
Gómez-Romero, Pedro 1959- (Institut Català de Nanociència i Nanotecnologia) ;
Tonti, Dino (Institut de Ciència de Materials de Barcelona)
A simple route has been developed for the preparation of mesoporous graphitic carbons with embedded cobalt nanoparticles just using glycine as a nitrogen source, cobalt nitrate and distilled water. After heating the mixture to 300 °C under magnetic stirring, a dry solid product was obtained, which was then carbonized at 900 ºC under argon atmosphere. [...]
2022 - 10.1007/s10853-022-07421-3
Journal of Materials Science, Vol. 57, issue 28 (July 2022) , p. 13403-13413
|
|
|
8.
|
|
|
9.
|
|
36 p, 2.1 MB |
Combined High Catalytic Activity and Efficient Polar Tubular Nanostructure in Urchin-Like Metallic NiCo2Se4 for High-Performance Lithium-Sulfur Batteries
/
Zhang, Chaoqi (Institut de Recerca en Energia de Catalunya) ;
Jacas Biendicho, Jordi (Institut de Recerca en Energia de Catalunya) ;
Zhang, Ting (Institut Català de Nanociència i Nanotecnologia) ;
Du, Ruifeng (Institut de Recerca en Energia de Catalunya) ;
Li, Junshan (Institut de Recerca en Energia de Catalunya) ;
Yang, Xuhui (Fuzhou University) ;
Arbiol i Cobos, Jordi (Institut Català de Nanociència i Nanotecnologia) ;
Zhou, Yingtang (Zhejiang Ocean University) ;
Morante, Joan Ramon (Institut de Recerca en Energia de Catalunya) ;
Cabot, Andreu (Institut de Recerca en Energia de Catalunya)
Urchin-shaped NiCoSe (u-NCSe) nanostructures as efficient sulfur hosts are synthesized to overcome the limitations of lithium-sulfur batteries (LSBs). u-NCSe provides a beneficial hollow structure to relieve volumetric expansion, a superior electrical conductivity to improve electron transfer, a high polarity to promote absorption of lithium polysulfides (LiPS), and outstanding electrocatalytic activity to accelerate LiPS conversion kinetics. [...]
2019 - 10.1002/adfm.201903842
Advanced functional materials, Vol. 29, Issue 34 (August 2019) , art. 1903842
|
|
|
10.
|
|
165 p, 6.6 MB |
Nickel and cobalt bis (imino)pyridine complexes as catalysts for the hydrogen evolution reaction
/
Jiang, Bing ;
Sala Román, Xavier, dir. ;
Llobet Dalmases, Antoni, dir. ;
Romero Fernández, Nuria, dir. ;
Universitat Autònoma de Barcelona.
Departament de Química
El subministrament d'energia sostenible és un desafiament crític que enfronta la humanitat. La dependència dels combustibles fòssils ha despertat l'interès en el desenvolupament de fonts d'energia lliures de carboni, entre les quals el dihidrogen que té una alta densitat d'energia seria un dels més prometedors sempre que es generi a partir d'alternatives renovables. [...]
Sustainable energy supply is a critical challenge humanity is facing. The dependence of fossil fuels have ignited interest in the development of carbon-free energy sources, among which energy-dense dihydrogen would be one of the most promising when generated from renewable alternatives. [...]
[Barcelona] : Universitat Autònoma de Barcelona, 2019.
|
|
visitant ::
identificació
alerta personal via correu electrònic o subscribiu-vos al 
canal RSS.
