Sara Morandi

University of Turin

Author Statistics

Papers

Citation

H-Index

i-10 index

Research Trends

Author Order

Document Type

Co-Authors

Luca Lietti

Politecnico di Milano

L. Castoldi

Politecnico di Milano

G. Ghiotti

University of Turin

Roberto Matarrese

Politecnico di Milano

M.C. Carotta

Institute for Energetics and Interphases

G. Cerrato

University of Turin

Ambra Fioravanti

Institute for Energetics and Interphases

Claudia L. Bianchi‬

University of Milan

Pierfrancesco Ticali

University of Turin

Pio Forzatti

Politecnico di Milano

Cooperative Institutions

National Interuniversity Consortium of Materials Science and Technology

University of Turin

University of Milan

Centre National de la Recherche Scientifique

National Research Council

Mylan (Switzerland)

Politecnico di Milano

University of Ferrara

Torino e-district

École Nationale Supérieure de Chimie de Montpellier

Author Statistics

Papers

Citation

H-Index

i-10 index

Research Field

Highly Efficient and Reproducible Sonochemical Synthesis of ZnO Nanocrystals

ChemPlusChem (2024)

Ambra Fioravanti M. Mazzocchi Pietro Marani Francesca Pedrielli M.C. Carotta

Abstract Sonochemical synthesis can be a facile, fast, efficient, versatile and economical way to prepare a large variety of conventional or novel nanostructured materials (metallic, magnetic, semiconducting, polymeric, etc.). In this work, zinc oxide nanocrystals were synthesized by irradiating and heating at 90 °C in a commercial ultrasonic bath a water solution of zinc nitrate hexahydrate and ammonia solution or hexamethylenetetramine as base catalysts. The evolution of the powder morphology and its crystalline structure were investigated at different times of ultrasonic irradiation (0–9 hours) and compared with those of samples obtained by only heating the solutions in a muffle furnace in order to enlighten the growth mechanism. It resulted that: i) the crystal morphology depends on the selected base, ii) for samples obtained by using ultrasounds, the homogeneity of the powders depends on the irradiation time, iii) by comparing all samples obtained at 7 hours of heating, the aspect ratio of the crystals is higher for those that also underwent to ultrasounds.

10.1002/cplu.202400005

Cite

Citations (0)

Novel insights on the Pd speciation in Pd/SSZ-13 and on the role of H2O in the Pd reduction by CO

Spectrochimica Acta Part A Molecular and Biomolecular Spectroscopy (2024)

Sara Morandi L. Castoldi Roberto Matarrese Luca Lietti

Pd speciation induced by the combined effect of CO and water on Pd/SSZ-13 samples prepared by both impregnation and ion exchange was examined by FT-IR spectroscopy of CO adsorbed at room temperature and at liquid nitrogen temperature on anhydrous and hydrated samples. Starting from the literature findings related to the CO reducing effect on Pd cations, the present work gives precise spectroscopic evidences on how water is necessary in this process not only for compensating with H

Anhydrous

Genetic algorithm

10.1016/j.saa.2024.124945

Cite

Citations (0)

Alkaline- and alkaline-earth oxides based Lean NOx Traps: effect of the storage component on the catalytic reactivity

L. Castoldi Luca Lietti Isabella Nova Pio Forzatti Sara Morandi

Alkaline earth metal

Reactivity

Component (thermodynamics)

Source

Cite

Citations (0)

NOx storage-reduction properties of a Pt-K/Al2O3 LNT catalyst

L. Castoldi Luca Lietti R. Bonzi Pio Forzatti Sara Morandi

Source

Cite

Citations (0)

Sustainable photocatalytic porcelain grés slabs active under LED light for indoor depollution and bacteria reduction

Elsevier eBooks (2020)

Claudia L. Bianchi‬G. Cerrato Sara Morandi Alessandro Di Michele Ridha Djellabi‬‬‬‬‬‬‬‬

10.1016/b978-0-12-819049-4.00008-8

Cite

Citations (1)

From Lab to Technical CO2 Hydrogenation Catalysts: Understanding PdZn Decomposition

Zenodo (CERN European Organization for Nuclear Research) (2023)

Pierfrancesco Ticali Davide Salusso Alessia Airi Sara Morandi Elisa Borfecchia

Supplementary material: Additional experimental results, including catalytic performances of the different scaled-up samples, SEM images, and additional XAS data related to the linear combination fit

10.5281/zenodo.10047576

Cite

Citations (0)

Reduction of NOx species by CO over Pt-K/Al2O3 and Pt-Ba/Al2O3 Lean NOx Trap

L. Castoldi Luca Lietti Isabella Nova Pio Forzatti Sara Morandi

Trap (plumbing)

Source

Cite

Citations (0)

COMPETITIVE SORPTION OF METAL IONS FROM AQUEOUS SOLUTION ONTO SILICA SAND

Sara Morandi Francesca Celsa Giacobbo Mario Mariani Mirko Da Ros M. Oddone

Source

Cite

Citations (0)

Looking for the active hydrogen species in a 5 wt% Pt/C catalyst: a challenge for inelastic neutron scattering

Faraday Discussions (2018)

Michele Carosso Andrea Lazzarini Andrea Piovano Riccardo Pellegrini Sara Morandi

We looked at the active hydrogen species in a highly dispersed and very homogeneous 5 wt% Pt/C industrial catalyst (Pt particle mean diameter of 2.0 ± 0.5 nm) for hydrogenation reactions, by coupling H₂adsorption measurements with Inelastic Neutron Scattering (INS).

10.1039/c7fd00214a

Cite

Citations (20)

Effect of water and ammonia on surface species formed during NOx storage–reduction cycles over Pt–K/Al2O3 and Pt–Ba/Al2O3 catalysts

Physical Chemistry Chemical Physics (2013)

Sara Morandi F. Prinetto L. Castoldi Luca Lietti Pio Forzatti

The effect of water, in the temperature range 25-350 °C, and ammonia at RT on two different surface species formed on Pt-K/Al2O3 and Pt-Ba/Al2O3 NSR catalysts during NO(x) storage-reduction cycles was investigated. The surface species involved are nitrates, formed during the NO(x) storage step, and isocyanates, which are found to be intermediates in N2 production during reduction by CO. FT-IR experiments demonstrate that the dissociative chemisorption of water and ammonia causes the transformation of the bidentate nitrates and linearly bonded NCO(-) species into more symmetric species that we call ionic species. In the case of water, the effect on nitrates is observable at all the temperatures studied; however, the extent of the transformation decreases upon increasing temperature, consistent with the decreased extent of dissociatively adsorbed water. It was possible to hypothesize that the dissociative chemisorption of water and ammonia takes place in a competitive way on surface sites able to give bidentate nitrates and linearly bonded NCO(-) that are dislocated, remaining on the surface as ionic species.

Chemisorption

Selective catalytic reduction

Atmospheric temperature range

10.1039/c3cp51195b

Cite

Citations (19)