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Cavitation as a zero-waste circular economy process to convert citrus processing waste into biopolymers in high demand

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Journal of Bioresources and Bioproducts 2024年第4期9卷 486-494页

作者： Rosaria Ciriminna Giuseppe Angellotti Giovanna Li Petri Francesco Meneguzzo Cristina Riccucci Gabriella Di Carlo Mario Pagliaro istituto per lo Studio dei materiali Nanostrutturati CNRvia U.La Malfa 153Palermo90146Italy istituto per la Bioeconomia CNRvia Madonna del Piano 10Sesto FiorentinoFI50019Italy istituto per lo Studio dei materiali Nanostrutturati CNRvia Salaria km 29.3MonterotondoRM00015Italy

Cavitation in water only, no matter whether hydrodynamic or acoustic, is a zero-waste circular economy process to convert industrial citrus processing waste into high-performance polysaccha- rides in high demand in a single-step at room temperature and ambient pressure using a modest amount of electricity as the only energy input. Following previous reports in which we used hydrodynamic cavitation, we now use an industrial acoustic sonicator to demonstrate the gen- eral viability of cavitation to convert biowaste residue of the industrial squeezing of pigmented sweet orange ( Citrus sinensis ) into highly bioactive “IntegroPectin ”pectin and micronized cellu- lose “CytroCell ”. From biomedicine through advanced composite membranes, said biomaterials hold great applicative potential. We conclude discussing the economic and technical feasibility of industrial implementation of the “CytroCav ”process.

关键词： Cavitation CytoCav CytroCell IntegroPectin Green extraction

Temperature-and vacancy-concentration-dependence of heat transport in Li_(3)ClO from multi-method numerical simulations

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npj Computational Materials 2022年第1期8卷 197-205页

作者： Paolo Pegolo Stefano Baroni Federico Grasselli SISSA—Scuola Internazionale Superiore di Studi Avanzati 34136TriesteItaly cnr-istituto officina dei materiali SISSA34136TriesteItaly COSMO—Laboratory of Computational Science and Modelling IMXÉcole Polytechnique Fédérale de Lausanne1015LausanneSwitzerland

Despite governing heat management in any realistic device,the microscopic mechanisms of heat transport in all-solid-state electrolytes are poorly known:existing calculations,all based on simplistic semi-empirical models,are unreliable for superionic conductors and largely overestimate their thermal *** this work,we deploy a combination of state-of-the-art methods to calculate the thermal conductivity of a prototypical Li-ion conductor,the Li_(3)ClO *** leveraging ab initio,machine learning,and force-field descriptions of interatomic forces,we are able to reveal the massive role of anharmonic interactions and diffusive defects on the thermal conductivity and its temperature dependence,and to eventually embed their effects into a simple rationale which is likely applicable to a wide class of ionic conductors.

关键词： transport conductivity eventually

Inclusion of infrared dielectric screening in the GW method from polaron energies to charge mobilities

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npj Computational Materials 2022年第1期8卷 1300-1307页

作者： Paolo Umari Dipartimento di Fisica e Astronomia Universitàdi Padovavia Marzolo 8I-35131PadovaItaly cnr-IOM istituto officina dei materiali Consiglio Nazionale Delle RicercheArea Science ParkStrada Statale 14km 163.5I-34149TriesteItaly

We introduce in the many-body GW scheme the modulation of the screened Coulomb interaction W arising from the macroscopic dielectric response in the *** derive expressions for the polaron binding energies,the renormalization of the effective masses and for the electron and hole relaxation *** and hole mobilities are then obtained from the incorporation of appropriate scattering ***-blende GaN and orthorhombic MAPbI3 are used as test beds finding fair agreement with results from rigorous electron-phonon coupling *** limited to polar phonons,our method has a negligible computational cost.

关键词： dielectric polaron negligible

Large thermal biasing of individual gated nanostructures

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Nano Research 2014年第4期7卷 579-587页

作者： Stefano Roddaro Daniele Ercolani Mian Akif Safeen Francesco Rossella Vincenzo Piazza Francesco Giazotto Lucia Sorba Fabio Beltram NEST Scuola Normale Superiore and Istituto Nanoscienze-CNR Piazza S. Silvestro 121-56127 Pisa Italy istituto officina dei materiali - cnr Basovizza S.S. 14 km 163.51-34149 Trieste Italy Center for Nanotechnology Innovation @NEST Istituto Italiano di Tecnologia Piazza San Silvestro 12 56127 Pisa Italy

We demonstrate very large and uniform temperature gradients up to about 1 K every 100 nm, in an architecture which is compatible with the field-effect control of the nanostructure under test. The temperature gradients demonstrated greatly exceed those typically obtainable with standard resistive heaters fabricated on top of the oxide layer. The nanoheating platform is demonstrated in the specific case of a short-nanowire device.

关键词： thermoelectric andthermomagnetic effects field effect devices nanowires

Towards the FAIRification of Scanning Tunneling Microscopy Images

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Data Intelligence 2023年第1期5卷 27-42页

作者： Tommaso Rodani Elda Osmenaj Alberto Cazzaniga Mirco Panighel Cristina Africh Stefano Cozzini AREAScience Park Padriciano9934149TriesteItaly cnr-1OM Consiglio Nazionale delle Ricerche-Istituto Officina dei MaterialiS.S.14Km 163.5Basovizza34149TriesteItaly

In this paper,we describe the data management practices and services developed for making FAIR compliant a scientific archive of Scanning Tunneling Microscopy(STM)*** a first step,we extracted the instrument metadata of each image of the dataset to create a structured *** then enriched these metadata with information on the structure and composition of the surface by means of a pipeline that leverages human annotation,machine learning techniques,and instrument metadata *** visually explore both images and metadata,as well as to improve the accessibility and usability of the dataset,we developed"STM explorer"as a web service integrated within the Trieste Advanced Data services(TriDAS)*** top of these data services and tools,we propose an implementation of the W3C PROV standard to describe provenance metadata of STM images.

关键词： Provenance STM images data management FAIR metadata for nanoscience W3C PROV

Partial oxidation of methane over SiO2 supported Ni and NiCe catalysts

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Journal of Energy Chemistry 2020年第8期29卷 1-9,I0001页

作者： A.Emamdoust V.La Parola G.Pantaleo M.L.Testa S.Farjami Shayesteh A.M.Venezia Nanostructure Lab Department of PhysicsUniversity of GuilanRashtIran istituto per lo Studio dei materiali Nanostrutturati(ISMN-cnr) Via Ugo La Malfa 153PalermoItaly

Nickel and nickel-ceria catalysts supported on high surface area silica, with 6 wt% Ni and 20 wt% CeO2 were prepared by microwave assisted(co) precipitation method. The catalysts were investigated by XRD,TPR and XPS analyses and they were tested in partial oxidation of methane(CPO). The catalytic reaction was carried out at atmospheric pressure in a temperature range of 400–800℃ with a feed gas mixture containing methane and oxygen in a molecular ratio CH4/O2=2. The Ni catalyst exhibited 60% methane conversion with 60% selectivity to CO already at 500℃. On the contrary, the Ni–Ce catalyst was inert to CPO up to 700℃. Moreover, the former catalyst reproduced its activity at the descending temperatures maintaining a good stability at 600℃, over a reaction time of 80 h, whereas the latter one completely deactivated. Test of CH4 temperature programmed surface reaction(CH4-TPSR) revealed a higher methane activation temperature(> 100℃) for the Ni–Ce catalyst as compared to the Ni one. Noticeable improvement of the ceria containing catalyst occurred when the reaction test started at a temperature higher than the methane decomposition temperature. In this case, the sample achieved the same catalytic behavior of the Ni catalyst. As confirmed by XPS analyses, the distinct electronic state of the supported nickel was responsible for the differences in catalytic behavior.

关键词： Methane catalytic partial oxidation(CPO) Ni catalyst NiCe SiO2 supported catalysts

The Recent Uses of Sol-Gel Doped Catalysts in Fine Chemistry

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复旦学报（自然科学版） 2005年第5期44卷 760-761页

作者： Mario Pagliaro Rosaria Ciriminna istituto per lo Studio dei materiali Nanostrutturati CNR via Ugo La Malfa 153 90146 Palermo ItalyIstituto per lo Studio dei Materiali Nanostrutturati CNR via Ugo La Malfa 153 90146 Palermo Italy

A variety of sol-gel entrapped catalysts is available on the chemical market due to the unique advantages offered by these highly porous oxides doped with transition metal catalyst, enzymes or even living cells[1].Catalytic sol-gel lipase immobilizates were rapidly commercialized by Fluka after their invention by Reetz and coworkers in 1995 and have now reached a 2nd generation level of performance[2]. Besides esterification reactions these materials are also excellent catalysts in the kinetic resolution of chiral alcohols and amines, and are recyclable without any substantial loss in enantioselectivity (residual activity of 70% even after 20 reaction cycles).

关键词：溶胶凝胶体生物催化处理 CACHy 催化剂脂肪酶

Advances in probing single biomolecules: From DNA bases to glycans

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Interdisciplinary Materials 2023年第4期2卷 511-528页

作者： Baofei Hou Teng Zhang Huixia Yang Xu Han Liwei Liu Linfei Li Cesare Grazioli Xu Wu Nan Jiang Yeliang Wang MIIT Key Laboratory for Low-Dimensional Quantum Structure and Devices School of Integrated Circuits and ElectronicsBeijing Institute of TechnologyBeijingChina Department of Chemistry University of Illinois ChicagoChicagoIllinoisUSA IOM-cnr Istituto Officina dei MaterialiTriesteItaly

Imaging biomolecules in real space is crucial for gaining a comprehensive understanding of the properties and functions of biological systems at the most fundamental *** the various imaging techniques available for biomolecules and their assembled nanostructures,scanning probe microscopy(SPM)provides a powerful and nondestructive imaging *** is unique in visualizing intrinsically disordered biomolecules at the nanometer scale(e.g.,glycans).This review highlights recent achievements in studying biomolecules using SPM technique,focusing on DNA bases,amino acids,proteins,and *** atomic-level analysis of biomolecules made possible by SPM allows for a more accurate definition of the local structure–property ***-resolution SPM imaging of single biomolecules offers a new way to study basic processes of life at the molecular level.

关键词： atomic-scale probing biomolecules scanning probe microscopy structure visualization

Scanning gate imaging of quantum point contacts and the origin of the 0.7 anomaly

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Nano Research 2015年第3期8卷 948-956页

作者： Andrea lagallo Nicola Paradiso Stefano Roddaro Christian Reichl Werner Wegscheider Giorgio Biasiol Lucia Sorba Fabio Beltram Stefan Heun National Enterprise for Nanoscience and Nanotechnology (NEST) Istituto Nanoscienze-CNR and Scuola Normale Superiore Piazza San Silvestro 12 56127 Pisa Italy istituto Offcina dei materiali cnr Laboratorio TASC 34149 Trieste Italy Solid State Physics Laboratory ETH Zurich Schafmattstrasse 16 8093 Zurich Switzerland

The origin of the anomalous transport feature appearing at a conductance G 0.7× （2e2/h） in quasi-lD ballistic devices-the so-called 0.7 anomaly-represents a long standing puzzle. Several mechanisms have been proposed to explain it, but a general consensus has not been achieved. Proposed explanations have been based on quantum interference, the Kondo effect, Wigner crystallization, and other phenomena. A key open issue is whether the point defects that can occur in these low-dimensional devices are the physical cause behind this conductance anomaly. Here we adopt a scanning gate microscopy technique to map individual impurity positions in several quasi-lD constrictions and correlate these with conductance characteristics. Our data demonstrate that the 0.7 anomaly can be observed irrespective of the presence of localized defects, and we conclude that the 0.7 anomaly is a fundamental property of low-dimensional systems.

关键词： two-dimensional electrongas (2-DEG) scanning gate microscopy 0.7 anomaly