Výsledky vyhledávání - "Michel Herlem"

The pH response of the InP/liquid ammonia interface at 223K: A pure nernstian behavior

Autor: Anne-Marie Goncalves, Arnaud Etcheberry, Charles Mathieu, Michel Herlem

Publikováno v: Electrochimica Acta. 55:7413-7418

Liquid ammonia (NH 3 liq. ) provides an original electrochemical environment onto semiconductors electrodes (SC). Its particular interest is that water influences can be neglected in opposition to a lot of non-aqueous other solvents. Fundamentals ele

Externí odkaz: https://explore.openaire.eu/search/publication?articleId=doi_________::7547ba4d13cf487c335f62ca9d773091
https://doi.org/10.1016/j.electacta.2010.07.001

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First evidence of stable P–N bonds after anodic treatment of InP in liquid ammonia: A new III–V material passivation route

Autor: Arnaud Etcheberry, Michel Herlem, Anne-Marie Goncalves, Charles Mathieu, O. Seitz

Publikováno v: Electrochemistry Communications, Vol 10, Iss 2, Pp 225-228 (2008)

This work reports – for the first time – the electrochemical anodic passivation of InP in a relevant nonaqueous solvent: liquid ammonia. A new route of InP passivation was clearly established by the coupling approach electrochemistry-XPS analyses

Externí odkaz: https://explore.openaire.eu/search/publication?articleId=doi_dedup___::27b050fd649ceeaf81e3f0c750290d54
https://doi.org/10.1016/j.elecom.2007.11.018

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New porosification of n-InP and n-GaAs in acidic liquid ammonia at 223 K: unusual morphologies associated to distinguished electrochemical behaviours

Autor: Michel Herlem, Arnaud Etcheberry, Caroline David, Anne-Marie Goncalves, Alexandra Eb, Lionel Santinacci, Charles Mathieu

Publikováno v: physica status solidi (a). 204:1286-1291

In this paper we report on galvanostatic pore formation on both n-InP and n-GaAs in acidic liquid ammonia (223 K). Quantitative analyses by atomic absorption have revealed two different dissolution mechanisms (involving 6 or 8 holes) without secondar

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https://doi.org/10.1002/pssa.200674311

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In situ electrochemical characterization of porous n ‐InP (100)

Autor: Anne-Marie Goncalves, Arnaud Etcheberry, Charles Mathieu, Michel Herlem, Alexandra Eb, C. David, Lionel Santinacci, I. Gerard

Publikováno v: physica status solidi c. 4:1898-1902

Porous structures have been anodically grown onto n -InP (100) in HCl. Surface chemistry and pore morphology have been respectively studied by X-ray photoelectron spectroscopy and scanning electron microscopy but in situ electrochemical investigation

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https://doi.org/10.1002/pssc.200674314

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A Significant Anodic Passivation of n and p-InP Surfaces in Liquid Ammonia: First Evidence of Stable Phosphorus-Nitrogen Bonds

Autor: Arnaud Etcheberry, Anne-Marie Goncalves, Charles Mathieu, Oliver Seitz, Michel Herlem, Alexandra Eb

Publikováno v: ECS Transactions. 6:461-468

The anodic electrochemical treatment in liquid ammonia of InP (n- and p-) leads to a simultaneous oxidation of both semiconductor and solvent. The oxidation of InP takes place through a passivating layer revealed as well by electrochemistry as by XPS

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https://doi.org/10.1149/1.2731214

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Electrochemistry at capped platinum nanoparticle Langmuir Blodgett films: A study of the influence of platinum amount and of number of LB layers

Autor: Vincent Noel, Michel Herlem, Sara Cavaliere-Jaricot, Henri Perez, Arnaud Etcheberry

Publikováno v: Electrochimica Acta
60th Symposium on Molecular Spectroscopy
Electrochimica Acta, 2007, 52 (6), pp.2285-2293. ⟨10.1016/j.electacta.2006.06.046⟩
Electrochimica Acta, Elsevier, 2007, 52 (6), pp.2285-2293. ⟨10.1016/j.electacta.2006.06.046⟩

International audience; Platinum nanoparticles (n-Pt), over-grafted with 2-thiophenecarbonyl chloride are assembled on gold electrodes, by the Langmuir Blodgett (LB) technique using behenic acid (BHA) as promoting agent. These layers are electrochemi

Externí odkaz: https://explore.openaire.eu/search/publication?articleId=doi_dedup___::75d2bc465708cdd807db8eab5898c49f
https://doi.org/10.1016/j.electacta.2006.06.046

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Electronic transfer through Langmuir–Blodgett layers of capped platinum nanoparticles: An electrochemical approach

Autor: Vincent Noel, Arnaud Etcheberry, Sara Cavaliere-Jaricot, Michel Herlem, Henri Perez

Publikováno v: Electrochimica Acta
Electrochimica Acta, 2006, 51, pp.6076-6080. ⟨10.1016/j.electacta.2006.01.068⟩
Electrochimica Acta, Elsevier, 2006, 51, pp.6076-6080. ⟨10.1016/j.electacta.2006.01.068⟩

Amine functionalized platinum nanoparticles have been modified by over-grafting two different molecules, 2-thiophenecarbonyl chloride (Pt-1) and 1-hexyl-4-(4-isothiocyanatophenyl)-bicyclo (2, 2, 2) octane (Pt-2). Cyclic voltammetry was performed at g

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https://doi.org/10.1016/j.electacta.2006.01.068

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New Potential Candidates for Redox Battery Using Liquid Ammoniates: Na+/Na and Ag+/Ag

Autor: Guillaume Herlem, Anne-Marie Goncalves, Pierre Tran-Van, Bernard Fahys, Edith Kwa, Michel Herlem

Publikováno v: Portugaliae Electrochimica Acta, Volume: 24, Issue: 1, Pages: 117-127, Published: 2006
Portugaliae Electrochimica Acta v.24 n.1 2006
Repositório Científico de Acesso Aberto de Portugal (Repositórios Cientìficos)
Agência para a Sociedade do Conhecimento (UMIC)-FCT-Sociedade da Informação
instacron:RCAAP

Liquid ammoniates, which are highly conductive electrolyte (more than 100 mS.cm-1 at 20 °C), are proposed as solvents for a redox battery working around room temperature, and up 80 °C. In the negative compartment, the anolyte is NaI · 3.3NH3, and

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https://doi.org/10.4152/pea.200601117

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Anomalous high salt conductivity in primary diamines as solvents

Autor: Guillaume Herlem, Bernard Fahys, Pierre Tran-Van, Edith Kwa, Thomas Diaco, Michel Herlem

Publikováno v: Journal of Molecular Liquids. 123:105-109

It is shown that the conductivities of LiBF4, LiPF6, LiN(SO2CF3)2 (LiTFSI), NaPF6, KPF are abnormally high in two diamine solvents: ethylenediamine (EDA) and 1,3-diaminopropane (1,3 DAP). This is particularly evident for KPF6, κMAX(EDA) = 35 mS cm�

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https://doi.org/10.1016/j.molliq.2005.06.003

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A new relation from the HSAB theory for predicting the conductivity maxima of salts in nonaqueous solvents

Autor: Michel Herlem, Guillaume Herlem, Thomas Diaco, Edith Kwa-Koffi, Pierre Tran-Van, Bernard Fahys

Publikováno v: Journal of Molecular Liquids. 115:121-125

It is shown that not only the relative permittivity or the dynamic viscosity, but also the chemical nature of the salt and that of the solvent can be taken into account to predict the most important properties of electrolytes: the conductivity maximu

Externí odkaz: https://explore.openaire.eu/search/publication?articleId=doi_________::7267f7e986bbe1f1fcd1d40e1259603d
https://doi.org/10.1016/j.molliq.2004.02.047

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