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Advanced Nanopowders Synthesis

English title Advanced Nanopowders Synthesis
Applicant Testino Andrea
Number 144302
Funding scheme Project funding (Div. I-III)
Research institution Paul Scherrer Institut
Institution of higher education Paul Scherrer Institute - PSI
Main discipline Inorganic Chemistry
Start/End 01.04.2013 - 31.03.2017
Approved amount 236'347.00
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All Disciplines (2)

Discipline
Inorganic Chemistry
Material Sciences

Keywords (4)

Hydrothemal; Nanopowder; Synthesis; SFTR

Lay Summary (Italian)

Lead
L’obiettivo del progetto è di produrre - mediante processi di soft-chemistry continui - quantità adeguate di nanopolveri per una completa caratterizzazione funzionale. Le nanopolveri prodotte con distribuzione dimensionale, forma, composizione chimica, proprietà superficiali e fase cristallina controllate, saranno utilizzate per test funzionali. Strumenti di caratterizzazione avanzati permetteranno lo studio dei processi fondamentali di nucleazione e crescita delle nanopolveri.
Lay summary

Le nanopolveri (NP) sono frequentemente utilizzate come precursori per numerosi prodotti avanzati. In laboratorio, tipicamente, le quantità di NP prodotte sono ridotte e non sufficiente per completare la caratterizzazione funzionale utilizzando un unico batch di sintesi, inducendo incertezza di riproducibilità e di coerenza dei dati raccolti. In conseguenza, spesso sono scelti prodotti commerciali. Le NP commerciali sono frequentemente stabilizzate con sostanze non dichiarate. L’utilizzo di prodotti stabilizzati determina una sostanziale incertezza sul reale stato superficiale del materiale che rappresenta una delle sue caratteristiche più importanti. In altri casi, intere categorie di nanopolveri non sono commercialmente disponibili.

L’obiettivo tecnologico del progetto è di preparare NP di elevata qualità e in quantità adeguata per completarne la craterizzazione chimico-fisica e funzionale. Le NP saranno preparate mediante metodi di “chimica dolce” ed utilizzando processi di sintesi facilmente adattabili per la produzione in scala industriale. Uno dei metodi di sintesi è il reattore tubolare a flusso segmentato (SFTR) il quale ha dimostrato di essere adatto alla produzione continua di quantità rilevanti di diverse tipologie di materiali nanostrutturati.

L’obiettivo scientifico del progetto è di studiare la relazione tra le proprietà chimico-fisiche del materiale e le sue proprietà funzionali. A tale scopo, oltre alle consuete metodologie di caratterizzazione, i materiali preparati saranno analizzati mediante tecniche avanzate utilizzando le grandi apparecchiature disponibili al Paul Scherrer Institut, come ad esempio l’indagine in-situ mediante diffrazione di luce di sincrotrone per lo studio dei processi di nucleazione e crescita delle nanoparticelle.

Il programma scientifico comprende la preparazione di ossidi di metalli drogati (ad es. W-doped CexZr(1-x)O2), nanopolveri core-shell (ad es. metal oxide core / metal shell) e ossidi metallici decorati con centri ad attività catalitica stabili in condizioni di acqua supercritica.

Direct link to Lay Summary Last update: 26.02.2013

Responsible applicant and co-applicants

Employees

Publications

Publication
Thermodynamic-Kinetic precipitation modelling. A case study: the amorphous calcium carbonate (ACC) precipitation pathway unravelled.
Agnese Carino, Testino Andrea, Andalibi Mohammad Reza, Pilger Frank, Bowen Paul, Ludwig Christian (2017), Thermodynamic-Kinetic precipitation modelling. A case study: the amorphous calcium carbonate (ACC) precipitation pathway unravelled., in Crystal Growth & Design, 17(4), 2006-2015.
Size Control of Pt Clusters on CeO2 Nanoparticles via an Incorporation–Segregation Mechanism and Study of Segregation Kinetics
Pilger Frank, Testino Andrea, Carino Agnese, Proff Christian, Kambolis Anastasios, (2016), Size Control of Pt Clusters on CeO2 Nanoparticles via an Incorporation–Segregation Mechanism and Study of Segregation Kinetics, in ACS Catalysis, 6, 3688-3699.
Continuous Polyol Synthesis of Metal and Metal Oxide Nanoparticles Using a Segmented Flow Tubular Reactor (SFTR)
Testino Andrea, Pilger Frank, Lucchini Mattia Alberto, Quinsaat Jose Enrico Q., Staehli Christoph, Bowen Paul (2015), Continuous Polyol Synthesis of Metal and Metal Oxide Nanoparticles Using a Segmented Flow Tubular Reactor (SFTR), in MOLECULES, 20(6), 10566-10581.
One-Pot Polyol Synthesis of Pt/CeO2 and Au/CeO2 Nanopowders as Catalysts for CO Oxidation
Pilger Frank, Testino Andrea, Lucchini Mattia Alberto, Kambolis Anastasios, Tarik Mohamed, El Kazzi Mario, Arroyo Yadira, Rossell Marta D., Ludwig Christian (2015), One-Pot Polyol Synthesis of Pt/CeO2 and Au/CeO2 Nanopowders as Catalysts for CO Oxidation, in JOURNAL OF NANOSCIENCE AND NANOTECHNOLOGY, 15(5), 3530-3539.

Collaboration

Group / person Country
Types of collaboration
EPFL - Prof. Paul Bowen Switzerland (Europe)
- in-depth/constructive exchanges on approaches, methods or results
- Publication

Scientific events

Active participation

Title Type of contribution Title of article or contribution Date Place Persons involved
Fundamentals and Applications of Cerium Dioxide in Catalysis Talk given at a conference Ionic Dispersion and Segregation of Pt on CeO2 Particles: Characterization and Kinetic Studies 30.06.2016 Beijing, China Testino Andrea; Pilger Frank; Ludwig Christian;
Designing New Heterogeneous Catalysts: Faraday Discussion Poster Incorporation-segregation mechanism of Pt clusters on CeO2: Characterization and kinetic studies 04.04.2016 London, UK, Great Britain and Northern Ireland Ludwig Christian; Pilger Frank; Testino Andrea;
EDMX Research Day 2015 Poster Pt-Segregation on CeO2 particles: Characterization and Kinetic Studies 23.11.2015 Lausanne VD, Switzerland Ludwig Christian; Testino Andrea; Pilger Frank;
SNI Annual Event 2015 Poster One-Pot Polyol Synthesis of Pt/CeO2 and Au/CeO2 Nanopowders as Catalysts for CO Oxidation 03.09.2015 Lenzerheide, Switzerland Pilger Frank;
CCMX Summer School - Characterisation of Materials Poster One-Pot Polyol Synthesis of Pt/CeO2 and Au/CeO2 Nanopowders as Catalysts for CO Oxidation 17.08.2015 Lausanne, Switzerland Pilger Frank;
SCTE 2014 - 19th International Conference on Solid Compounds of Transition Elements Talk given at a conference One-pot polyol synthesis of Pt/CeO2 and Au/CeO2 nanopowders as catalysts for CO oxidation 21.05.2014 Genova, Italy Ludwig Christian; Pilger Frank; Testino Andrea;
Swiss NanoConvention 2014, May 21-22, in Brugg Windisch Poster Advanced CeO2-Nanopowders Synthesis in the Segmented Flow Tubular Reactor (SFTR) 21.05.2014 Brugg Windisch, Switzerland Pilger Frank; Ludwig Christian; Testino Andrea;
Fundamentals and Applications of Cerium Dioxide in Catalysis Poster One-pot polyol synthesis of Pt/CeO2 and Au/CeO2 nanopowders as catalysts for CO oxidation 11.05.2014 Udine, Italy Pilger Frank;
SNI Annual Event 2014 Poster NanoFil 11.05.2014 Lenzerheide, Switzerland Testino Andrea; Pilger Frank; Ludwig Christian;
SCS Fall Meeting 2014 Poster One-pot polyol synthesis of Pt/CeO2 and Au/CeO2 nanopowders as catalysts for CO oxidation 11.05.2014 Zürich, Switzerland Pilger Frank;
Fundamentals and Applications of Cerium Dioxide in Catalysis Poster Advanced CeO2-Nanopowders Synthesis in the Segmented Flow Tubular Reactor (SFTR) 11.05.2014 Udine, Italy Pilger Frank;


Communication with the public

Communication Title Media Place Year
Media relations: print media, online media Highlight of LISA Beamline (ESRF) annual report International 2016
Media relations: print media, online media Paving the way towards the development of advanced catalytic materials: Size Control of Pt Clusters PSI Homepage International 2016
Media relations: print media, online media Functionalized nanofiber-enhanced filter media for fine particles and heavy metal removal in fluegas SNI Annual Report 2014 - Supplement German-speaking Switzerland 2014

Awards

Title Year
Royal Society of Chemistry bursary for the attendance at Designing New Heterogeneous Catalysts 2016
Grant/Scholarship for the active participation at the 19th International Conference on Solid Compounds of Transition Elements 21-26 June 2014 Genova - Italy 2014

Associated projects

Number Title Start Funding scheme
184817 Towards Understanding the Fate of Nano-Objects in Thermal Waste Treatment Processes: Development of Analytical Methods for Element and Particle Size Analysis of Aerosols and Suspensions 01.02.2020 Project funding (Div. I-III)

Abstract

Nanopowders are often raw materials for preparation of a number of advanced products, for instance catalysts. Even at laboratory scale, the amount of nanopowders required to carry out a full experimental trial are generally beyond the laboratory single-batch size. In order to overcome the batch-to-batch incertitude, commercial nanopowders are often chosen.Frequently commercial nanopowders are available in large quantities, at good quality, and competitive price. However, not disclosed additives are generally used in commercial products, e.g. adsorbed molecular species as surface stabilizer or antiagglomerant. In many fields, nanopowders are used because of their high surface activity; it turns out that commercial nanoproducts are completely undefined with respect to their surface status, inducing a crucial lack of knowledge in entire experimental trials.In other cases, entire class of nanopowders with defined properties are not commercially available. The objective of the project is to produce nanostructured material with improved quality and relatively large amount by means of advanced soft-chemical continuous route, such as the advanced Segmented Flow Tubular Reactor (SFTR). The produce nanopowders with tailored size, size distribution, shape, chemical homogeneity, surface properties, and phase composition at medium scale amount (100-500g) will be tested in real applications, defined by parallel already running projects. The final goal is to clearly elucidate the nanopowder properties - product performance relationship.Advanced characterization tool, such as the planned in-situ synchrotron-light XRD experiments will allow progress towards the comprehension of the nucleation and growth mechanisms involved in the nanopowders production. In the framework of this project, three classes of materials have been selected, namely (a) W-doped CexZr(1-x)O2, (b) metal-oxide core / metal shell nanopowder, (c) a sintered ceramic supporting material, thermodynamically stable under water supercritical condition, decorated with nano-dispersed immobilised catalytic centers. The strategic discussion at the rather new “Bioenergy and Catalysis Laboratory” (LBK) together with Genearal Energy Research Department (ENE) at the Paul Scherrer Institue (PSI) resulted in the conclusion that catalytic in house research at LBK needs also in house catalysts synthesis development activities as a major requirement to protect own innovations in the field of energy, catalysis, and environmental S&T.
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