Synthesis and Characterization of Molybdenum Based Colloidal Particles

Moreno, Beatriz; Vidoni, Olivia; Ovalles, César; Chaudret, Bruno; Urbina, Caribay; Krentzein, Heinz

doi:10.1006/jcis.1998.5631

Cited by 12 publications

(3 citation statements)

References 17 publications

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“…[2,4] Over the past few years, sonochemical processing has proven to be a unique and effective technique for generating novel nanoparticles and one-dimensional nanofibers, nanowires and nanorods with unusual properties. [5,6] Here, we provide a new application for the synthesis of both polyaniline (PANI) nanotubes and nanofibers by doping different concentrations of mineral or organic acids under ultrasonic irradiation.…”

Section: Introductionmentioning

confidence: 99%

Fabrication of Polyaniline Nanostructures under Ultrasonic Irradiation: From Nanotubes to Nanofibers

Mao

Chao

et al. 2006

Macro Chemistry & Physics

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Summary: An ultrasonic irradiation assisted polymerization method has been used to prepare PANI nanotubes and nanofibers by using different doping concentrations of mineral or organic acids. It has been found that PANI nanotubes can be produced when the concentration of the dopant acid is low. However, PANI nanofibers can also be produced when the concentration of the dopant acid is high. For nanotubes synthesized at a low concentration of the dopant acid, the outer average diameter can be changed from about 150 nm using phosphoric acid to 200 nm using nitric acid as the dopant and the inter diameter is in the range of 10–50 nm. For nanofibers, the diameter ranges from about 50 nm using nitric acid to more than 110 nm using perchloric acid as the dopant. The mechanism of the formation of the nanotubes and nanofibers may be due to the formation of different kinds of micelles and the prevention of the second growth of the PANI by ultrasonic irradiation. The chemical structure of the PANI nanotubes and nanofibers are characterized by FTIR and UV‐vis absorption spectra and XRD patterns. The conductivity of the PANI nanofibers is comparable to that of conventional PANI samples.TEM images of PANI nanofibers synthesized under ultrasonic irradiation doped by perchloric acid.magnified imageTEM images of PANI nanofibers synthesized under ultrasonic irradiation doped by perchloric acid.

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Section: Introductionmentioning

confidence: 99%

Fabrication of Polyaniline Nanostructures under Ultrasonic Irradiation: From Nanotubes to Nanofibers

Mao

Chao

et al. 2006

Macro Chemistry & Physics

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“…Figure 1d 40 The Mo 3d 5/2 components centered at 232.4 eV are attributed to Mo 6+ oxidized species, arising from the inevitable surface oxidation during air exposure and thermal annealing. 45 The noise of the Co region is relatively high due to the low concentration (Figure S4c). The Co 2p region was analyzed into Co 0 (778.7 eV for 2p 3/2 ), Co 3+ (780.7 eV for 2p 3/2 ), Co 2+ (782.9 eV for 2p 3/2 ), and the satellite (786.8 eV).…”

Section: ■ Results and Discussionmentioning

confidence: 99%

“…In Figure S4b, the Mo 3 d core level (Mo 3 d 5/2 –Mo 3 d 3/2 ) doublet separation of 3.16 eV and the peak of C–Mo–T x 3 d 5/2 centered at 229.3 eV are attributed to Mo atoms bonded to C atoms and surface terminations . The Mo 3 d 5/2 components centered at 232.4 eV are attributed to Mo 6+ oxidized species, arising from the inevitable surface oxidation during air exposure and thermal annealing . The noise of the Co region is relatively high due to the low concentration (Figure S4c).…”

Section: Results and Discussionmentioning

confidence: 99%

ZIF-67 Derivative Decorated MXene for a Highly Integrated Flexible Self-Powered Photodetector

Luo

Zhao

et al. 2022

ACS Appl. Mater. Interfaces

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The rapid development of portable and wearable electronics has promoted the integration of multifunction techniques. Although flexible energy storage systems have been successfully investigated, the compact configuration with photodetector and energy storage components has received less attention. As a new member of the 2D material class, MXene exhibits remarkable electronic and optical properties. Here, through the intentional introduction of ZIF-67 derivatives deposited on the Mo2CT x nanosheets, the synthesized Co-CoO x /NC/Mo2CT x heterostructure not only provided a straightforward pathway for photogenerated electrons to transport but also enhanced the structural stability of Mo2CT x , leading to a high responsivity and short rise/decay time under the illumination of simulated light in the photoelectrochemical (PEC) configuration. The integrated flexible device based on a zinc ion battery and Co-CoO x /NC/Mo2CT x heterostructure shows outstanding photodetection function and retains the intrinsic charge/discharge behaviors, which could monitor 1 day sunlight changes in real time. The paradigm presented here paves the way for realizing the development of miniaturization and multifunction toward next-generation portable and wearable technologies.

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Surface‐capped molybdenum sulphide nanoparticles — a novel type of lubricant additive

Bakunin

Suslov

Kuz’mina

et al. 2004

Lubrication Science

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Compounds containing molybdenum sulphide are widely employed as friction‐modifying and antioxidant additives in lubricants. However, the synthesis of these types of compound can often be complex and expensive. Tribologically active lubricant additives can be prepared as inorganic nanosized surface‐capped particles, the surfaces being coated with compounds that interact and/or react with the inorganic material. This paper reports on the synthesis and characterisation of surface‐capped molybdenum trisulphide nanoparticles. The synthesis was carried out using a reverse micellar system. The size and composition of the nanoparticles were determined, and their tribological properties as lubricant additives were compared with those of commercially available additives. It was found that the surface‐capped molybdenum sulphide nanoparticles show good friction‐modifying and anti‐scuffing behaviour.

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Synthesis and Characterization of Molybdenum Based Colloidal Particles

Cited by 12 publications

References 17 publications

Fabrication of Polyaniline Nanostructures under Ultrasonic Irradiation: From Nanotubes to Nanofibers

Fabrication of Polyaniline Nanostructures under Ultrasonic Irradiation: From Nanotubes to Nanofibers

ZIF-67 Derivative Decorated MXene for a Highly Integrated Flexible Self-Powered Photodetector

Surface‐capped molybdenum sulphide nanoparticles — a novel type of lubricant additive

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