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1.
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12 p, 2.5 MB |
Asymmetrical Plasmon Distribution in Hybrid AuAg Hollow/Solid Coded Nanotubes
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Genç, Aziz (Institut Català de Nanociència i Nanotecnologia) ;
Patarroyo, Javier (Institut Català de Nanociència i Nanotecnologia) ;
Sancho-Parramon, Jordi (Rudjer Boskovic Institute) ;
Arenal, Raúl (ARAID Foundation) ;
Bastús, Neus G (Institut Català de Nanociència i Nanotecnologia) ;
Puntes, Víctor (Hospital Universitari Vall d'Hebron. Institut de Recerca) ;
Arbiol i Cobos, Jordi (Institut Català de Nanociència i Nanotecnologia)
Morphological control at the nanoscale paves the way to fabricate nanostructures with desired plasmonic properties. In this study, we discuss the nanoengineering of plasmon resonances in 1D hollow nanostructures of two different AuAg nanotubes, including completely hollow nanotubes and hybrid nanotubes with solid Ag and hollow AuAg segments. [...]
2023 -  10.3390/nano13060992
Nanomaterials, Vol. 13, Issue 6 (March 2023) , art. 992
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2.
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23 p, 3.5 MB |
Cu2ZnSnS4-PtM (M = Co, Ni) nanoheterostructures for photocatalytic hydrogen evolution
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Yu, Xuelian (Institut de Recerca en Energia de Catalunya) ;
An, Xiaoqiang (Chinese Academy of Sciences. Key Laboratory of Drinking Water Science and Technology) ;
Genç, Aziz (Institut Català de Nanociència i Nanotecnologia) ;
Ibáñez, Maria (Institut de Recerca en Energia de Catalunya) ;
Arbiol i Cobos, Jordi (Institut Català de Nanociència i Nanotecnologia) ;
Zhang, Yie (Chinese Academy of Sciences. Key Laboratory of Drinking Water Science and Technology) ;
Cabot, Andreu (Institució Catalana de Recerca i Estudis Avançats)
We report the synthesis and photocatalytic and magnetic characterization of colloidal nanoheterostructures formed by combining a Pt-based magnetic metal alloy (PtCo, PtNi) with CuZnSnS (CZTS). While CZTS is one of the main candidate materials for solar energy conversion, the introduction of a Pt-based alloy on its surface strongly influences its chemical and electronic properties, ultimately determining its functionality. [...]
2015 - 10.1021/acs.jpcc.5b06199
Journal of physical chemistry. C, Vol. 119, issue 38 (Sep. 2015) , p. 21882-21888
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3.
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24 p, 2.3 MB |
Cu2ZnSnS4-Ag2S nanoscale p-n heterostructures as sensitizers for photoelectrochemical water splitting
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Yu, Xuelian (Institut de Recerca en Energia de Catalunya) ;
Liu, Jingjing (Chinese Academy of Sciences. Key Laboratory of Drinking Water Science and Technology) ;
Genç, Aziz (Institut Català de Nanociència i Nanotecnologia) ;
Ibáñez, Maria (Institut de Recerca en Energia de Catalunya) ;
Luo, Zhishan (Institut de Recerca en Energia de Catalunya) ;
Shavel, Alexey (Institut de Recerca en Energia de Catalunya) ;
Arbiol i Cobos, Jordi (Institut Català de Nanociència i Nanotecnologia) ;
Zhang, Guangjin (Chinese Academy of Sciences. Key Laboratory of Drinking Water Science and Technology) ;
Zhang, Yihe (Chinese Academy of Sciences. Beijing Key Laboratory of Materials Utilization of Nonmetallic Minerals and Solid Wastes) ;
Cabot, Andreu (Institució Catalana de Recerca i Estudis Avançats)
A cation exchange-based route was used to produce CuZnSnS (CZTS)-AgS nanoparticles with controlled composition. We report a detailed study of the formation of such CZTS-AgS nanoheterostructures and of their photocatalytic properties. [...]
2015 - 10.1021/acs.langmuir.5b02490
Langmuir, Vol. 31, issue 38 (Sep. 2015) , p. 10555-10561
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4.
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7 p, 4.9 MB |
Exploiting the lability of metal halide perovskites for doping semiconductor nanocomposites
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Calcabrini, Mariano (Institute of Science and Technology Austria) ;
Genç, Aziz (Institut Català de Nanociència i Nanotecnologia) ;
Liu, Yu (Institute of Science and Technology Austria) ;
Kleinhanns, Tobias (Institute of Science and Technology Austria) ;
Lee, Seungho (Institute of Science and Technology Austria) ;
Dirin, Dmitry N. (ETH Zürich. Department of Chemistry and Applied Biosciences) ;
Akkerman, Quinten A. (ETH Zürich. Department of Chemistry and Applied Biosciences) ;
Kovalenko, Maksym V. (Empa-Swiss Federal Laboratories for Materials Science and Technology) ;
Arbiol i Cobos, Jordi (Institut Català de Nanociència i Nanotecnologia) ;
Ibáñez, Maria (Institute of Science and Technology Austria)
Cesium lead halides have intrinsically unstable crystal lattices and easily transform within perovskite and nonperovskite structures. In this work, we explore the conversion of the perovskite CsPbBr into CsPbBr in the presence of PbS at 450 °C to produce doped nanocrystal-based composites with embedded CsPbBr nanoprecipitates. [...]
2021 - 10.1021/acsenergylett.0c02448
ACS Energy Letters, Vol. 6, issue 2 (Feb. 2021) , p. 581-587
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5.
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8 p, 3.2 MB |
Understanding galvanic replacement reactions : the case of Pt and Ag
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Merkoçi, Florind (Institut Català de Nanociència i Nanotecnologia) ;
Patarroyo, Javier (Universitat Autònoma de Barcelona) ;
Russo, Lorenzo (Institut Català de Nanociència i Nanotecnologia) ;
Piella, Jordi (Institut Català de Nanociència i Nanotecnologia) ;
Genç, Aziz (Institut Català de Nanociència i Nanotecnologia) ;
Arbiol i Cobos, Jordi (Institut Català de Nanociència i Nanotecnologia) ;
Bastús, Neus G. (Institut Català de Nanociència i Nanotecnologia) ;
Puntes, Víctor (Institut Català de Nanociència i Nanotecnologia)
Synthesis of nanocrystals (NCs), where material science elements are addressed with organic chemistry precision techniques, is especially challenging and difficult to control. This difficulty arises from the increased complexity of the mineralization processes and the generation of a liquid-solid interface. [...]
2020 - 10.1016/j.mtadv.2019.100037
Materials Today Advances, Vol. 5 (March 2020) , art. 100037
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6.
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8 p, 1.5 MB |
Hollow PdAg-CeO2 heterodimer nanocrystals as highly structured heterogeneous catalysts
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Patarroyo, Javier (Institut Català de Nanociència i Nanotecnologia) ;
Delgado, Jorge A. (Centre Tecnològic de la Química) ;
Merkoçi, Florind (Institut Català de Nanociència i Nanotecnologia) ;
Genç, Aziz (Institut Català de Nanociència i Nanotecnologia) ;
Sauthier, Guillaume (Institut Català de Nanociència i Nanotecnologia) ;
Llorca, Jordi (Universitat Politècnica de Catalunya. Departament d'Enginyeria Química) ;
Arbiol i Cobos, Jordi (Institut Català de Nanociència i Nanotecnologia) ;
Bastús, Neus G. (Institut Català de Nanociència i Nanotecnologia) ;
Godard, Cyril (Universitat Rovira i Virgili. Departament de Química Física i Inorgànica) ;
Claver, Carmen (Universitat Rovira i Virgili. Departament de Química Física i Inorgànica) ;
Puntes, Víctor (Institut Català de Nanociència i Nanotecnologia)
In the present work, hollow PdAg-CeO heterodimer nanocrystals (NCs) were prepared and tested as catalysts for the selective hydrogenation of alkynes. These nanostructures combine for the first time the beneficial effect of alloying Pd with Ag in a single NC hollow domain with the formation of active sites at the interface with the CeO counterpart in an additive manner. [...]
2019 - 10.1038/s41598-019-55105-x
Scientific reports, Vol. 9 (December 2019) , art. 18776
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7.
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15 p, 1.7 MB |
Robust one-pot synthesis of citrate-stabilized Au@CeO2 hybrid nanocrystals with different thickness and dimensionality
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Bastús, Neus G. (Institut Català de Nanociència i Nanotecnologia) ;
Piella, Jordi (Institut Català de Nanociència i Nanotecnologia) ;
Pérez Brizuela, Sara (Institut Català de Nanociència i Nanotecnologia) ;
Patarroyo, Javier (Institut Català de Nanociència i Nanotecnologia) ;
Genç, Aziz (Institut Català de Nanociència i Nanotecnologia) ;
Arbiol i Cobos, Jordi (Institut Català de Nanociència i Nanotecnologia) ;
Puntes, Víctor (Institut Català de Nanociència i Nanotecnologia)
Well-defined colloidal Au@CeO hybrid nanocrystals (NCs) comprising different core/shell morphologies have been synthesized via a novel and simple one-pot aqueous approach. The method allows producing hybrid morphologies composed by an active and accessible Au core coated by a porous CeO shell with varying shell thickness and dimensionality by simply adjusting the Au /Ce precursor ratio. [...]
2019 - 10.1016/j.apmt.2019.03.003
Applied materials today, Vol. 15 (June 2019) , p. 445-452
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8.
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9 p, 8.2 MB |
Tuning transport properties in thermoelectric nanocomposites through inorganic ligands and heterostructured building blocks
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Ibáñez, Maria (EMPA-Swiss Federal Laboratories for Materials Science and Technology) ;
Genç, Aziz (Institut Català de Nanociència i Nanotecnologia) ;
Hasler, Roger (Empa-Swiss Federal Laboratories for Materials Science and Technology) ;
Liu, Yu (Institute of Science and Technology Austria) ;
Dobrozhan, Oleksandr (Institut de Recerca en Energia de Catalunya) ;
Nazarenko, Olga (Empa-Swiss Federal Laboratories for Materials Science and Technology) ;
De La Mata, Maria (Institut Català de Nanociència i Nanotecnologia) ;
Arbiol i Cobos, Jordi (Institut Català de Nanociència i Nanotecnologia) ;
Cabot, Andreu (Institut de Recerca en Energia de Catalunya) ;
Kovalenko, Maksym V. (ETH Zürich. Department of Chemistry and Applied Biosciences)
Methodologies that involve the use of nanoparticles as "artificial atoms" to rationally build materials in a bottom-up fashion are particularly well-suited to control the matter at the nanoscale. Colloidal synthetic routes allow for an exquisite control over such "artificial atoms" in terms of size, shape, and crystal phase as well as core and surface compositions. [...]
2019 - 10.1021/acsnano.9b00346
ACS nano, Vol. 13, Issue 6 (June 2019) , p. 6572-6580
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9.
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10 p, 816.7 KB |
Ligand-mediated band engineering in bottom-up assembled SnTe nanocomposites for thermoelectric energy conversion
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Ibáñez, Maria (EMPA-Swiss Federal Laboratories for Materials Science and Technology) ;
Hasler, Roger (Empa-Swiss Federal Laboratories for Materials Science and Technology) ;
Genç, Aziz (Institut Català de Nanociència i Nanotecnologia) ;
Liu, Yu (Institute of Science and Technology Austria) ;
Kuster, Beatrice (Empa-Swiss Federal Laboratories for Materials Science and Technology) ;
Schuster, Maximilian (ETH Zürich. Department of Chemistry and Applied Biosciences) ;
Dobrozhan, Oleksandr (Institut de Recerca en Energia de Catalunya) ;
Cadavid, Doris (Institut de Recerca en Energia de Catalunya) ;
Arbiol i Cobos, Jordi (Institut Català de Nanociència i Nanotecnologia) ;
Cabot, Andreu (Institut de Recerca en Energia de Catalunya) ;
Kovalenko, Maksym V. (ETH Zürich. Department of Chemistry and Applied Biosciences)
The bottom-up assembly of colloidal nanocrystals is a versatile methodology to produce composite nanomaterials with precisely tuned electronic properties. Beyond the synthetic control over crystal domain size, shape, crystal phase, and composition, solution-processed nanocrystals allow exquisite surface engineering. [...]
2019 - 10.1021/jacs.9b01394
Journal of the American Chemical Society, Vol. 141, Issue 20 (May 2019) , p. 8025-8029
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10.
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9 p, 1.5 MB |
Pd₂Sn [010] nanorods as a highly active and stable ethanol oxidation catalyst
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Luo, Zhishan (Centre de Recerca en Energia de Catalunya) ;
Lu, Jianmin (Chinese Academy of Sciences. Dalian Institute of Chemical Physics) ;
Flox, Cristina (Institut de Recerca en Energia de Catalunya) ;
Nafria, Raquel (Institut de Recerca en Energia de Catalunya) ;
Genç, Aziz (Institut Català de Nanociència i Nanotecnologia) ;
Arbiol i Cobos, Jordi (Institut Català de Nanociència i Nanotecnologia) ;
Llorca, Jordi (Universitat Politècnica de Catalunya. Institut de Tècniques Energètiques) ;
Ibáñez, Maria (Institut de Recerca en Energia de Catalunya) ;
Morante, Joan Ramon (Institut de Recerca en Energia de Catalunya) ;
Cabot, Andreu (Institut de Recerca en Energia de Catalunya)
The development of highly active, low cost and stable electrocatalysts for direct alcohol fuel cells remains a critical challenge. While Pd₂Sn has been reported as an excellent catalyst for the ethanol oxidation reaction (EOR), here we present DFT analysis results showing the (100) and (001) facets of orthorhombic PdSn to be more favourable for the EOR than (010). [...]
2016 - 10.1039/c6ta06430b
Journal of materials chemistry, Vol. 4, issue 42 (2016) , p. 16706-16713
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