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35 p, 1.4 MB |
Degradation and regeneration mechanisms of NiO protective layers deposited by ALD on photoanodes
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Ros, Carles (Institut de Recerca en Energia de Catalunya) ;
Andreu, Teresa (Institut de Recerca en Energia de Catalunya) ;
David, Jeremy (Institut Català de Nanociència i Nanotecnologia) ;
Arbiol i Cobos, Jordi (Institut Català de Nanociència i Nanotecnologia) ;
Morante, Joan Ramon (Institut de Recerca en Energia de Catalunya)
The use of high pH electrolytes requires protective layers to avoid corrosion in photoanodes based on semiconductors like silicon. NiO is one of the materials that comply with the requirements for transparency, conductivity, chemical stability and catalysis on the surface in contact with the electrolyte. [...]
2019 -  10.1039/c9ta08638b
Journal of materials chemistry A, Vol. 7, Issue 38 (October 2019) , p. 21892-21902
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3.
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A low temperature solid state reaction to produce hollow MnxFe3-xO4 nanoparticles as anode for lithium-ion batteries
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Yu, Xiaoting (Institut de Recerca en Energia de Catalunya) ;
Zhang, Chaoqi (Institut de Recerca en Energia de Catalunya) ;
Luo, Zhishan (Institut de Recerca en Energia de Catalunya) ;
Zhang, Ting (Institut Català de Nanociència i Nanotecnologia) ;
Liu, Junfeng (Institut de Recerca en Energia de Catalunya) ;
Li, Junshan (Institut de Recerca en Energia de Catalunya) ;
Zuo, Yong (Institut de Recerca en Energia de Catalunya) ;
Jacas Biendicho, Jordi (Institut de Recerca en Energia de Catalunya) ;
Llorca, Jordi (Universitat Politècnica de Catalunya. Departament d'Enginyeria Química) ;
Arbiol i Cobos, Jordi (Institut Català de Nanociència i Nanotecnologia) ;
Morante, Joan Ramon (Institut de Recerca en Energia de Catalunya) ;
Cabot, Andreu (Institut de Recerca en Energia de Catalunya)
Hollow MnFeO nanoparticles (NPs) with an average size of 15 nm are produced from the solid state reaction of FeO-MnO heterostructures. These heterostructures are synthesized through the seeded-growth of MnO crystal domains on the surface of hollow FeO NPs obtained by the nanoscale Kirkendall effect. [...]
2019 - 10.1016/j.nanoen.2019.104199
Nano Energy, Vol. 66 (December 2019) , art. 104199
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4.
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43 p, 1.6 MB |
Insight into the Degradation Mechanisms of Atomic Layer Deposited TiO2 as Photoanode Protective Layer
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Ros, Carles (Institut de Recerca en Energia de Catalunya) ;
Carretero González, Nina Magali (Institut de Recerca en Energia de Catalunya) ;
David, Jeremy (Institut Català de Nanociència i Nanotecnologia) ;
Arbiol i Cobos, Jordi (Institut Català de Nanociència i Nanotecnologia) ;
Andreu, Teresa (Institut de Recerca en Energia de Catalunya) ;
Morante, Joan Ramon (Institut de Recerca en Energia de Catalunya)
Around 100 nm thick TiO layers deposited by atomic layer deposition (ALD) have been investigated as anticorrosion protective films for silicon-based photoanodes decorated with 5 nm NiFe catalyst in highly alkaline electrolyte. [...]
2019 - 10.1021/acsami.9b05724
ACS applied materials and interfaces, Vol. 11, Issue 33 (August 2019) , p. 29725-29735
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45 p, 1.3 MB |
Ballistic InSb Nanowires and Networks via Metal-Sown Selective Area Growth
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Aseev, Pavel (Microsoft Quantum Lab Delft) ;
Wang, Guanzhong (Delft University of Technology) ;
Binci, Luca (Delft University of Technology) ;
Singh, Amrita (Delft University of Technology) ;
Martí-Sánchez, Sara (Institut Català de Nanociència i Nanotecnologia) ;
Botifoll, Marc (Institut Català de Nanociència i Nanotecnologia) ;
Stek, Lieuwe J. (Delft University of Technology) ;
Bordin, Alberto (Delft University of Technology) ;
Watson, John D. (Microsoft Quantum Lab Delft) ;
Boekhout, Frenk (QuTech and Netherlands Organization for Applied Scientific Research) ;
Abel, Daniel (Microsoft Quantum Lab Delft) ;
Gamble, John (Microsoft Quantum) ;
Van Hoogdalem, Kevin (Microsoft Quantum Lab Delft) ;
Arbiol i Cobos, Jordi (Institut Català de Nanociència i Nanotecnologia) ;
Kouwenhoven, Leo P. (Delft University of Technology) ;
De Lange, Gijs (Microsoft Quantum Lab Delft) ;
Caroff, Philippe (Microsoft Quantum Lab Delft)
Selective area growth is a promising technique to realize semiconductor-superconductor hybrid nanowire networks, potentially hosting topologically protected Majorana-based qubits. In some cases, however, such as the molecular beam epitaxy of InSb on InP or GaAs substrates, nucleation and selective growth conditions do not necessarily overlap. [...]
2019 - 10.1021/acs.nanolett.9b04265
Nano letters, Vol. 19, Issue 12 (December 2019) , p. 9102-9111
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28 p, 1.5 MB |
Boosting Photoelectrochemical Water Oxidation of Hematite in Acidic Electrolytes by Surface State Modification
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Tang, PengYi (Institut Català de Nanociència i Nanotecnologia) ;
Han, Li-Juan (Institut Català d'Investigació Química) ;
Hegner, Franziska Simone (Institut Català d'Investigació Química) ;
Paciok, Paul (Ernst Ruska-Centre for Microscopy and Spectroscopy with Electrons) ;
Biset-Peiró, Martí (Institut de Recerca en Energia de Catalunya) ;
Du, Hong-Chu (Ernst Ruska-Centre for Microscopy and Spectroscopy with Electrons) ;
Wei, Xian-Kui (Ernst Ruska-Centre for Microscopy and Spectroscopy with Electrons) ;
Jin, Lei (Ernst Ruska-Centre for Microscopy and Spectroscopy with Electrons) ;
Xie, Hai-Bing (Institut Català de Nanociència i Nanotecnologia) ;
Shi, Qin (Institut de Recerca en Energia de Catalunya) ;
Andreu, Teresa (Institut de Recerca en Energia de Catalunya) ;
Lira Cantú, Mónica (Institut Català de Nanociència i Nanotecnologia) ;
Heggen, Marc (Ernst Ruska-Centre for Microscopy and Spectroscopy with Electrons) ;
Dunin-Borkowski, Rafal E. (Ernst Ruska-Centre for Microscopy and Spectroscopy with Electrons) ;
López, Núria (Institut Català d'Investigació Química) ;
Galán-Mascarós, José Ramón (Institut Català d'Investigació Química) ;
Morante, Joan Ramon (Institut de Recerca en Energia de Catalunya) ;
Arbiol i Cobos, Jordi (Institut Català de Nanociència i Nanotecnologia)
State-of-the-art water-oxidation catalysts (WOCs) in acidic electrolytes usually contain expensive noble metals such as ruthenium and iridium. However, they too expensive to be implemented broadly in semiconductor photoanodes for photoelectrochemical (PEC) water splitting devices. [...]
2019 - 10.1002/aenm.201901836
Advanced Energy Materials, Vol. 9, Issue 34 (September 2019) , art. 1901836
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9 p, 2.4 MB |
Superior methanol electrooxidation performance of (110)-faceted nickel polyhedral nanocrystals
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Li, Junshan (Institut de Recerca en Energia de Catalunya) ;
Zuo, Yong (Institut de Recerca en Energia de Catalunya) ;
Liu, Junfeng (Institut de Recerca en Energia de Catalunya) ;
Wang, Xiang (Institut de Recerca en Energia de Catalunya) ;
Yu, Xiaoting (Institut de Recerca en Energia de Catalunya) ;
Du, Ruifeng (Institut de Recerca en Energia de Catalunya) ;
Zhang, Ting (Institut Català de Nanociència i Nanotecnologia) ;
Infante Carrió, María F. (Institut Català de Nanociència i Nanotecnologia) ;
Tang, PengYi (Institut Català de Nanociència i Nanotecnologia) ;
Arbiol i Cobos, Jordi (Institut Català de Nanociència i Nanotecnologia) ;
Llorca, Jordi (Universitat Politècnica de Catalunya. Departament d'Enginyeria Química) ;
Luo, Zhishan (Institut de Recerca en Energia de Catalunya) ;
Cabot, Andreu (Institut de Recerca en Energia de Catalunya)
We present the synthesis of (110)-faceted nickel polyhedral nanocrystals (NCs) and their characterization as electrocatalysts for the methanol oxidation reaction (MOR). Ni NCs were produced at 180 °C through the reduction in solution of a Ni salt. [...]
2019 - 10.1039/c9ta07066d
Journal of materials chemistry A, Vol. 7, Issue 38 (October 2019) , p. 22036-22043
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30 p, 4.3 MB |
In Situ Electrochemical Oxidation of Cu2S into CuO Nanowires as a Durable and Efficient Electrocatalyst for Oxygen Evolution Reaction
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Zuo, Yong (Institut de Recerca en Energia de Catalunya) ;
Liu, Yongpeng (École Polytechnique Fédérale de Lausanne) ;
Li, Junshan (Institut de Recerca en Energia de Catalunya) ;
Du, Ruifeng (Institut de Recerca en Energia de Catalunya) ;
Han, Xu (Institut Català de Nanociència i Nanotecnologia) ;
Zhang, Ting (Institut Català de Nanociència i Nanotecnologia) ;
Arbiol i Cobos, Jordi (Institut Català de Nanociència i Nanotecnologia) ;
Jiménez Divins, Nuria (Universitat Politècnica de Catalunya. Departament d'Enginyeria Química) ;
Llorca, Jordi (Universitat Politècnica de Catalunya. Departament d'Enginyeria Química) ;
Guijarro, Néstor (École Polytechnique Fédérale de Lausanne) ;
Sivula, Kevin (École Polytechnique Fédérale de Lausanne) ;
Cabot, Andreu (Institut de Recerca en Energia de Catalunya)
Development of cost-effective oxygen evolution catalysts is of capital importance for the deployment of large-scale energy-storage systems based on metal-air batteries and reversible fuel cells. In this direction, a wide range of materials have been explored, especially under more favorable alkaline conditions, and several metal chalcogenides have particularly demonstrated excellent performances. [...]
2019 - 10.1021/acs.chemmater.9b02790
Chemistry of materials, Vol. 31, Issue 18 (September 2019) , p. 7732-7743
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21 p, 2.5 MB |
Seeded-Growth Aqueous Synthesis of Colloidal-Stable Citrate-Stabilized Au/CeO2 Hybrid Nanocrystals : Heterodimers, Core@Shell, and Clover- And Star-Like Structures
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Piella, Jordi (Institut Català de Nanociència i Nanotecnologia) ;
González Febles, Ana (Institut Català de Nanociència i Nanotecnologia) ;
Patarroyo, Javier (Institut Català de Nanociència i Nanotecnologia) ;
Arbiol i Cobos, Jordi (Institut Català de Nanociència i Nanotecnologia) ;
Gómez Bastús, Neus (Institut Català de Nanociència i Nanotecnologia) ;
Puntes, Víctor (Institut Català de Nanociència i Nanotecnologia)
Well-defined colloidal-stable citrate-stabilized Au/CeO hybrid nanocrystals (NCs) with coherent quasi-epitaxial interfaces and unprecedented control of their architectural and morphological characteristics have been synthesized via a novel and straightforward seeded-growth aqueous approach. [...]
2019 - 10.1021/acs.chemmater.9b02005
Chemistry of materials, Vol. 31, Issue 19 (October 2019) , p. 7922-7932
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9 p, 1.2 MB |
Segregation scheme of indium in AlGaInAs nanowire shells
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Francaviglia, Luca (École Polytechnique Fédérale de Lausanne) ;
Tütüncüoglu, Gözde (École Polytechnique Fédérale de Lausanne) ;
Martí-Sánchez, Sara (Institut Català de Nanociència i Nanotecnologia) ;
Di Russo, Enrico (Université de Rouen) ;
Escobar Steinvall, Simon (École Polytechnique Fédérale de Lausanne) ;
Segura Ruiz, Jaime (European Synchrotron Radiation Facility) ;
Potts, Heidi A. (École Polytechnique Fédérale de Lausanne) ;
Friedl, Martin (École Polytechnique Fédérale de Lausanne) ;
Rigutti, Lorenzo (Université de Rouen) ;
Arbiol i Cobos, Jordi (Institut Català de Nanociència i Nanotecnologia) ;
Fontcuberta i Morral, Anna (École Polytechnique Fédérale de Lausanne)
Quaternary alloys enable the independent optimization of different semiconductor properties, such as the separate tuning of the band gap and the lattice constant. Nanowire core-shell structures should allow a larger range of compositional tuning as strain can be accommodated in a more effective manner than in thin films. [...]
2019 - 10.1103/PhysRevMaterials.3.023001
Physical review materials, Vol. 3, Issue 2 (February 2019) , art. 23001
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