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Showing 1 to 12 of 319 entries
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Aerosol assisted chemical vapour deposition of gas sensitive SnO2 and Au-functionalised SnO2 nanorods via a non-catalysed vapour solid (VS) mechanism.

Scientific reports

Vallejos S, Selina S, Annanouch FE, Gràcia I, Llobet E, Blackman C.
PMID: 27334232
Sci Rep. 2016 Jun 23;6:28464. doi: 10.1038/srep28464.

Tin oxide nanorods (NRs) are vapour synthesised at relatively lower temperatures than previously reported and without the need for substrate pre-treatment, via a vapour-solid mechanism enabled using an aerosol-assisted chemical vapour deposition method. Results demonstrate that the growth of...

Using a Second Order Sigma-Delta Control to Improve the Performance of Metal-Oxide Gas Sensors.

Sensors (Basel, Switzerland)

Kowalski L, Pons-Nin J, Navarrete E, Llobet E, Domínguez-Pumar M.
PMID: 29473862
Sensors (Basel). 2018 Feb 23;18(2). doi: 10.3390/s18020654.

Controls of surface potential have been proposed to accelerate the time response of MOX gas sensors. These controls use temperature modulations and a feedback loop based on first-order sigma-delta modulators to keep constant the surface potential. Changes in the...

Ruthenium Water Oxidation Catalysts based on Pentapyridyl Ligands.

ChemSusChem

Gil-Sepulcre M, Böhler M, Schilling M, Bozoglian F, Bachmann C, Scherrer D, Fox T, Spingler B, Gimbert-Suriñach C, Alberto R, Bofill R, Sala X, Luber S, Richmond CJ, Llobet A.
PMID: 29068156
ChemSusChem. 2017 Nov 23;10(22):4517-4525. doi: 10.1002/cssc.201701747. Epub 2017 Nov 14.

Ruthenium complexes containing the pentapyridyl ligand 6,6''-(methoxy(pyridin-2-yl)methylene)di-2,2'-bipyridine (L-OMe) of general formula trans-[Ru

Enhanced detection of nitrogen dioxide via combined heating and pulsed UV operation of indium oxide nano-octahedra.

Beilstein journal of nanotechnology

Gonzalez O, Roso S, Vilanova X, Llobet E.
PMID: 28144501
Beilstein J Nanotechnol. 2016 Oct 25;7:1507-1518. doi: 10.3762/bjnano.7.144. eCollection 2016.

We report on the use of combined heating and pulsed UV light activation of indium oxide gas sensors for enhancing their performance in the detection of nitrogen dioxide in air. Indium oxide nano-octahedra were synthesized at high temperature (900...

New powerful and oxidatively rugged dinuclear Ru water oxidation catalyst: control of mechanistic pathways by tailored ligand design.

Journal of the American Chemical Society

Neudeck S, Maji S, López I, Meyer S, Meyer F, Llobet A.
PMID: 24328119
J Am Chem Soc. 2014 Jan 08;136(1):24-7. doi: 10.1021/ja409974b. Epub 2013 Dec 24.

A new powerful and oxidatively rugged pyrazolate-based water oxidation catalyst of formula {[Ru(II)(py-SO3)2(H2O)]2(μ-Mebbp)}(-), 1(H2O)2(-), has been prepared and thoroughly characterized spectroscopically and electrochemically. This new catalyst has been conceived based on a specific ligand tailoring design, so that its...

Robust electromagnetic absorption by graphene/polymer heterostructures.

Nanotechnology

Lobet M, Reckinger N, Henrard L, Lambin P.
PMID: 26112385
Nanotechnology. 2015 Jul 17;26(28):285702. doi: 10.1088/0957-4484/26/28/285702. Epub 2015 Jun 26.

Polymer/graphene heterostructures present good shielding efficiency against GHz electromagnetic perturbations. Theory and experiments demonstrate that there is an optimum number of graphene planes, separated by thin polymer spacers, leading to maximum absorption for millimeter waves Batrakov et al (2014...

Aerosol-Assisted CVD-Grown PdO Nanoparticle-Decorated Tungsten Oxide Nanoneedles Extremely Sensitive and Selective to Hydrogen.

ACS applied materials & interfaces

Annanouch FE, Haddi Z, Ling M, Di Maggio F, Vallejos S, Vilic T, Zhu Y, Shujah T, Umek P, Bittencourt C, Blackman C, Llobet E.
PMID: 27043301
ACS Appl Mater Interfaces. 2016 Apr 27;8(16):10413-21. doi: 10.1021/acsami.6b00773. Epub 2016 Apr 18.

We report for the first time the successful synthesis of palladium (Pd) nanoparticle (NP)-decorated tungsten trioxide (WO3) nanoneedles (NNs) via a two-step aerosol-assisted chemical vapor deposition approach. Morphological, structural, and elemental composition analysis revealed that a Pd(acac)2 precursor was...

MHDA-Functionalized Multiwall Carbon Nanotubes for detecting non-aromatic VOCs.

Scientific reports

Thamri A, Baccar H, Struzzi C, Bittencourt C, Abdelghani A, Llobet E.
PMID: 27721503
Sci Rep. 2016 Oct 10;6:35130. doi: 10.1038/srep35130.

The chemical modification of multiwalled carbon nanotubes (MWCNTs) with a long chain mercapto acid is reported as a way to improve sensitivity and response time of gas sensors for detecting alcohols, acetone and toxic gases such as DMMP. We...

Plasmon hybridization in pyramidal metamaterials: a route towards ultra-broadband absorption.

Optics express

Lobet M, Lard M, Sarrazin M, Deparis O, Henrard L.
PMID: 24921385
Opt Express. 2014 May 19;22(10):12678-90. doi: 10.1364/OE.22.012678.

Pyramidal metamaterials are currently developed for ultra-broadband absorbers. They consist of periodic arrays of alternating metal/dielectric layers forming truncated square-based pyramids. The metallic layers of increasing lengths play the role of vertically and, to a less extent, laterally coupled...

A self-improved water-oxidation catalyst: is one site really enough?.

Angewandte Chemie (International ed. in English)

López I, Ertem MZ, Maji S, Benet-Buchholz J, Keidel A, Kuhlmann U, Hildebrandt P, Cramer CJ, Batista VS, Llobet A.
PMID: 24259487
Angew Chem Int Ed Engl. 2014 Jan 03;53(1):205-9. doi: 10.1002/anie.201307509. Epub 2013 Nov 20.

The homogeneous catalysis of water oxidation by transition-metal complexes has experienced spectacular development over the last five years. Practical energy-conversion schemes, however, require robust catalysts with large turnover frequencies. Herein we introduce a new oxidatively rugged and powerful dinuclear...

Powerful Bis-facially Pyrazolate-Bridged Dinuclear Ruthenium Epoxidation Catalyst.

Inorganic chemistry

Aguiló J, Francàs L, Bofill R, Gil-Sepulcre M, García-Antón J, Poater A, Llobet A, Escriche L, Meyer F, Sala X.
PMID: 26121322
Inorg Chem. 2015 Jul 20;54(14):6782-91. doi: 10.1021/acs.inorgchem.5b00641. Epub 2015 Jun 29.

A new bis-facial dinuclear ruthenium complex, {[Ru(II)(bpy)]2(μ-bimp)(μ-Cl)}(2+), 2(2+), containing a hexadentate pyrazolate-bridging ligand (Hbimp) and bpy as auxiliary ligands has been synthesized and fully characterized in solution by spectrometric, spectroscopic, and electrochemical techniques. The new compound has been tested...

Dinuclear copper(I) complexes with hexaaza macrocyclic dinucleating ligands: structure and dynamic properties.

Inorganic chemistry

Costas M, Xifra R, Llobet A, Solà M, Robles J, Parella T, Stoeckli-Evans H, Neuburger M.
PMID: 12844320
Inorg Chem. 2003 Jul 14;42(14):4456-68. doi: 10.1021/ic0261833.

The synthesis and structural and spectroscopic characterization of a family of copper(I) complexes, containing a dinucleating hexaaza macrocyclic ligand, of general formula [Cu(2)(L)(X)(2)](2+) (L = Me2p, Me2m, Me3p, or Me3m; X = MeCN, n-PrCN, CO, t-BuNC, or PPh(3)) is...

Showing 1 to 12 of 319 entries