Noble metals supported on carbon nanotubes using supercritical fluids for the preparation of composite materials: A look at the interface

Garrido, Elsa; Aymonier, Cyril; Roiban, Lucian; Ersen, Ovidiu; Labrugère, Christine; Gaillard, Patrice; Lamirand-Majimel, M.

doi:10.1016/j.supflu.2015.03.009

Cited by 24 publications

(11 citation statements)

References 51 publications

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“…Concerning Pd3d 5/2 peak fitting (cf. EIS Figure S1 and S2), the absence of PdO bonding usually located at 337 eV is confirmed [33] as the maximum component is Pd metal at around 335 eV, while another 1 eV higher (~336 eV) could be attributed to Pd-O-X bonding namely Pd-O-Al.…”

Section: Xpsmentioning

confidence: 80%

“…(B)-900°C exhibited crystal growth of a totally different nature when compared to (J)-800°C, with a type of random agglomerated distribution of small 'sheets' of crystals varying in orientation with sharp corners emerging from the surface. It is remarkable how only~3 % Al metal content can induce such EDX analysis subsequent to LP runs for (B)-Pt 40 Pd 57 Al 3 , (C)-Pt33 Pd 40 Al 27 , (D)-Pt 43 Pd 46 Al 11 , (E)-Pt 48 Pd 23 Al 29 , (F)-Pt 60 Al 40 , and (H)-Pt 23 Pd 58 Al 19…”

mentioning

confidence: 99%

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Co-sputtered PtxPdyAlz thin film electrocatalysts for the production of hydrogen via SO2(aq) electro-oxidation

et al. 2016

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A co-sputtered Pt x Pd y Al z ternary system was investigated for potential use as anode catalyst for the electrooxidation of aqueous sulphur dioxide (SO 2 ), a key reaction in the hybrid sulphur (HyS) process for splitting water into hydrogen and oxygen. Combining the noble metals Pt and Pd with Al resulted in no significant improvement in onset potential; however, current output was improved for the majority of the electrocatalysts evaluated. Of these electrocatalysts, only a single ternary composition exhibited improved stability when compared to pure Pt. It was found that a combination of Pt 40 Pd 57 Al 3 (annealed at 900°C) exhibited superior performance when compared to pure Pt and the previously determined best binary electrocatalyst, i.e. Pt 3 Pd 2 . Current density (mA.mg Pt −1 ) increased from 108.11 to 181.21 and finally to 396.73 for Pt, Pt 3 Pd 2 and Pt 40 Pd 57 Al 3 , respectively, indicating an increase in activity that correlates with a decrease in Pt content. Atomic force microscopy (AFM) revealed an increase in surface roughness for Pt, Pt 3 Pd 2 and Pt 40 Pd 57 Al 3 , while the occurrence of metal interaction and certain degrees of Al migration (a result of annealing) was confirmed for Pt 40 Pd 57 Al 3 by X-ray photoelectron spectroscopy (XPS) and X-ray diffraction analysis (XRD).

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Section: Xpsmentioning

confidence: 80%

mentioning

confidence: 99%

Co-sputtered PtxPdyAlz thin film electrocatalysts for the production of hydrogen via SO2(aq) electro-oxidation

et al. 2016

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“…The electrochemical functionalisation of CNTs with metallic nanoparticles and the application of the resulting metal decorated CNTs has also seen increased interest in recent years particularly in areas related to sensing and catalysis [157][158][159][160]. For example, Wang et al over-potentials of just 65 and 129 mV were applied.…”

Section: Cnts For Chemical Sensing Electrochemical Sensors Based On Cntsmentioning

confidence: 99%

Carbon nanomaterials and their application to electrochemical sensors: a review

Power¹,

Gorey²,

Chandra³

et al. 2018

Nano Online

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Carbon has long been applied as an electrochemical sensing interface owing to its unique electrochemical properties. Moreover, recent advances in material design and synthesis, particularly nanomaterials, has produced robust electrochemical sensing systems that display superior analytical performance. Carbon nanotubes (CNTs) are one of the most extensively studied nanostructures because of their unique properties. In terms of electroanalysis, the ability of CNTs to augment the electrochemical reactivity of important biomolecules and promote electron transfer reactions of proteins is of particular interest. The remarkable sensitivity of CNTs to changes in surface conductivity due to the presence of adsorbates permits their application as highly sensitive nanoscale sensors. CNT-modified electrodes have also demonstrated their utility as anchors for biomolecules such as nucleic acids, and their ability to diminish surface fouling effects. Consequently, CNTs are highly attractive to researchers as a basis for many electrochemical sensors. Similarly, synthetic diamonds electrochemical properties, such as superior chemical inertness and biocompatibility, make it desirable both for (bio) chemical sensing and as the electrochemical interface for biological systems. This is highlighted by the recent development of multiple electrochemical diamond-based biosensors and bio interfaces.Keywords: bio sensors; carbon nanomaterials; carbon nanotubes; electrochemical sensing; synthetic diamond Users without a subscription are not able to see the full content. Please, subscribe or login to access all content.

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“…Using electrochemical deposition methods, a good control on size and densities of decorating CNTs has been accomplished [14]. Fuel cells, electronic signal modulation, photonic sensing, and nanomechanical actuators are some of the most attractive applications that can be designed by using CNT enhanced with metallic NPs [15]. In this regard, platinum presents the advantage of a SPR located in the ultraviolet region of the electromagnetic spectrum, and then it can be considered for high energy single photon devices [16].…”

Section: Introductionmentioning

confidence: 99%

XOR Logic Gate by Carbon/Metal Nanoinks Based on a Double-Stage Optical Kerr Gate Configuration

García-Merino

Feria-Reyes

Mercado-Zúñiga³

et al. 2018

Advances in Condensed Matter Physics

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Two-input binary exclusive-or logic operations were presented by the assistance of multiwall carbon nanotubes in a double-stage optical Kerr gate scheme with two control beams. The samples were prepared by the aerosol pyrolysis method and decorated by platinum nanoparticles using a chemical vapor deposition technique. The nanostructures were suspended in ethanol to obtain carbon/metal nanoinks with different concentrations and then randomly distributed networks integrated in thin film form were fabricated. Polarization-selectable functions were obtained in the double-stage scheme by using nanosecond third-order nonlinear optical effects at 532 nm wavelength exhibited by the samples. Potential applications for ultrafast identification and encryption of nonlinear optical signals were discussed.

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Noble metals supported on carbon nanotubes using supercritical fluids for the preparation of composite materials: A look at the interface

Cited by 24 publications

References 51 publications

Co-sputtered PtxPdyAlz thin film electrocatalysts for the production of hydrogen via SO2(aq) electro-oxidation

Co-sputtered PtxPdyAlz thin film electrocatalysts for the production of hydrogen via SO2(aq) electro-oxidation

Carbon nanomaterials and their application to electrochemical sensors: a review

XOR Logic Gate by Carbon/Metal Nanoinks Based on a Double-Stage Optical Kerr Gate Configuration

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