The Effect of a Magnetic Field on a RAPET (Reaction under Autogenic Pressure at Elevated Temperature) of MoO(OMe)(4): Fabrication of MoO(2) Nanoparticles Coated with Carbon or Separated MoO(2) and Carbon Particles.

The journal of physical chemistry. B · 2004 · Mixed · Insufficient evidence

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MixedInsufficient evidencePaper 3601

RAPET dissociation of MoO(OMe)4 at 700 °C without a magnetic field produced ~20 nm MoO2 nanoparticles coated with ~20 nm carbon. Performing the reaction under an applied 10 T magnetic field yielded different products: a mixture of larger (~50 nm) MoO2 nanopar…

Study snapshot

PublicationThe journal of physical chemistry. B · 2004
Study typeother
Reported directionMixed
Evidence ratingInsufficient

Abstract

In this article, we present results of the RAPET dissociation of MoO(OMe)4 at 700 degrees C in a closed Swagelok cell. The reaction produces molybdenum dioxide nanoparticles (20 nm) coated with carbon (20 nm). We have also carried out the same reaction under an applied magnetic field of 10 T. This reaction yielded different products. It produces a mixture of comparatively larger (50 nm) molybdenum dioxide nanoparticles and separated uncoated carbon particles (20-30 nm).

Machine Enhanced Logic

AI evidence extraction

Structured fields below were generated from the paper’s abstract and metadata to make the evidence easier to inspect. Automated extraction may be incomplete or incorrect; verify important details against the original paper.

Study typeother
Effect directionmixed
PopulationNot supplied
Sample sizeNot supplied
ExposureNot supplied
Evidence strengthInsufficientConfidence: 74% · Peer reviewed: yes

Main findings

RAPET dissociation of MoO(OMe)4 at 700 °C without a magnetic field produced ~20 nm MoO2 nanoparticles coated with ~20 nm carbon. Performing the reaction under an applied 10 T magnetic field yielded different products: a mixture of larger (~50 nm) MoO2 nanoparticles and separated uncoated carbon particles (~20–30 nm).

Outcomes measured

  • Reaction products/composition (MoO2 nanoparticles coated with carbon vs separated MoO2 and carbon particles)
  • Nanoparticle size (MoO2 ~20 nm vs ~50 nm; carbon ~20 nm vs 20–30 nm)

Limitations

  • No biological/health outcomes assessed (materials/chemistry study).
  • Magnetic field exposure parameters beyond field strength (e.g., duration, field type/time variation) not described in the abstract.
  • Sample size/replication not reported in the abstract.
View raw extracted JSON
{
  "study_type": "other",
  "exposure": {
    "band": null,
    "source": "applied magnetic field",
    "frequency_mhz": null,
    "sar_wkg": null,
    "duration": null
  },
  "population": null,
  "sample_size": null,
  "outcomes": [
    "Reaction products/composition (MoO2 nanoparticles coated with carbon vs separated MoO2 and carbon particles)",
    "Nanoparticle size (MoO2 ~20 nm vs ~50 nm; carbon ~20 nm vs 20–30 nm)"
  ],
  "main_findings": "RAPET dissociation of MoO(OMe)4 at 700 °C without a magnetic field produced ~20 nm MoO2 nanoparticles coated with ~20 nm carbon. Performing the reaction under an applied 10 T magnetic field yielded different products: a mixture of larger (~50 nm) MoO2 nanoparticles and separated uncoated carbon particles (~20–30 nm).",
  "effect_direction": "mixed",
  "limitations": [
    "No biological/health outcomes assessed (materials/chemistry study).",
    "Magnetic field exposure parameters beyond field strength (e.g., duration, field type/time variation) not described in the abstract.",
    "Sample size/replication not reported in the abstract."
  ],
  "evidence_strength": "insufficient",
  "confidence": 0.74,
  "peer_reviewed_likely": "yes",
  "keywords": [
    "magnetic field",
    "10 T",
    "RAPET",
    "MoO(OMe)4",
    "molybdenum dioxide",
    "MoO2",
    "nanoparticles",
    "carbon coating",
    "Swagelok cell",
    "700 °C"
  ],
  "suggested_hubs": []
}
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AI-extracted fields are generated from the abstract and metadata and may be incomplete or incorrect. This material is for informational purposes and is not medical advice.

Identifiers and source

DOI: 10.1021/jp0491360
PubMed: 18950118

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