dc.contributor.author | Mezzasalma, Stefano A. | |
dc.contributor.author | Kruse, Joscha | |
dc.contributor.author | Iturrospe Ibarra, Amaia | |
dc.contributor.author | Arbe Méndez, María Aranzazu | |
dc.contributor.author | Grzelczak, Marek | |
dc.date.accessioned | 2023-01-19T18:59:07Z | |
dc.date.available | 2023-01-19T18:59:07Z | |
dc.date.issued | 2022-12 | |
dc.identifier.citation | Journal of Colloid and Interface Science 628(Part A) : 205-214 (2022) | es_ES |
dc.identifier.issn | 0021-9797 | |
dc.identifier.issn | 1095-7103 | |
dc.identifier.uri | http://hdl.handle.net/10810/59374 | |
dc.description.abstract | A statistical thermodynamics variational criterion is propounded to study thermal hysteresis in reversible clustering of gold (Au) nanoparticles. Experimentally, a transient equilibrium mapping analysis is employed to characterize it thermodynamically, further measurements being performed at the nanostructural and electrochemical levels (UV-Vis-NIR spectra, SLS/SAXS, zeta potential). Theoretically, it is successfully interpreted as a thermodynamic cycle, prompting that nanoclusters has potential to produce useful work from heat and paving the way to nanoclustering heat engines. By taking into account the virial expansion of hysteretic pressure, an entropy measure is deduced for a dilute system with given virial coefficients. This allows us to figure out the role of relevant interparticle potential parameters (i.e. surface potential, nanoparticle size, Debye's length, Hamaker energy) in both isothermal and isochoric variations at the onset of hysteresis. Application to spherical Au nanoparticles in watery salt solution (NaCl) is developed when an ad-hoc (DLVO) pairwise potential governs the second virial coefficient at the nanoscale. In particular, the variational criterion predicts a pressure drop between heating and cooling paths which is likely at the base of some energy redistribution (e.g. ordering/restructuring of electric double layers). We found an integrating factor that is able to numerically predict the existence of a critical value for the initial salt concentration maximizing the hysteretic area, and the effect of nanoparticle size on the cycle extent. | es_ES |
dc.description.sponsorship | A.A. and A.I acknowledge the Grant PID2021-123438NB-I00 funded by MCIN/AEI/10.13039/501100011033 and by “ERDF A way of making Europe”, as well as financial support of Eusko Jaurlaritza, code: IT-1566-22 and from the IKUR Strategy. A. I. thanks MICINN for a Personal Técnico de Apoyo contract (PTA2017-14359-I). Correspondence of one of the authors (S.A.M.) with Dezső Boda (IASK/UP - Hungary) is kindly acknowledged. This work was supported by grant PID2019-111772RB-I00 funded by MCIN/AEI/ 10.13039/501100011033. | es_ES |
dc.language.iso | eng | es_ES |
dc.publisher | Elsevier | es_ES |
dc.relation | info:eu-repo/grantAgreement/MICINN/PID2021-123438NB-I00 | es_ES |
dc.relation | info:eu-repo/grantAgreement/MICINN/PID2019-111772RB-I00 | es_ES |
dc.rights | info:eu-repo/semantics/openAccess | es_ES |
dc.rights.uri | http://creativecommons.org/licenses/by-nc-nd/3.0/es/ | * |
dc.subject | Au nanocolloids | es_ES |
dc.subject | reversible clustering | es_ES |
dc.subject | transient equilibrium mapping | es_ES |
dc.subject | hysteresis | es_ES |
dc.subject | thermodynamic cycles | es_ES |
dc.subject | statistical mechanics | es_ES |
dc.subject | heat engines | es_ES |
dc.title | Statistical thermodynamics in reversible clustering of gold nanoparticles. A first step towards nanocluster heat engines | es_ES |
dc.type | info:eu-repo/semantics/article | es_ES |
dc.rights.holder | © 2022 The Author(s). Published by Elsevier Inc.
This is an open access article under the CC BY-NC-ND license (http://creativecommons.org/licenses/by-nc-nd/4.0/). | es_ES |
dc.rights.holder | Atribución-NoComercial-SinDerivadas 3.0 España | * |
dc.relation.publisherversion | https://www.sciencedirect.com/science/article/pii/S0021979722012073?via%3Dihub | es_ES |
dc.identifier.doi | 10.1016/j.jcis.2022.07.037 | |