Controllable preparation of magnetic carbon nanocomposites by pyrolysis of organometallic precursors, similar molecular structure but very different morphology, composition and properties

Four cobalt-containing organometallic compounds were synthesized for solid-state pyrolysis (SSP) to study the structure-property relationship between precursors and as-generated magnetic carbon nanocomposites (MCNs). In the research, the only saturated carbon...

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The effect of heteroatoms on the formation of magnetic ceramic nanocomposites in pyrolysis of organometallic precursors: similar molecular structure, but totally different morphology, composition and properties

10.21203/rs.3.rs-81430/v1 ◽

2020 ◽

Author(s):

Zhijun Ruan ◽

Jingwen Ran ◽

Shanshan Liu ◽

Yanmei Chen ◽

Xichao Wang ◽

...

Keyword(s):

Molecular Structure ◽

Magnetic Properties ◽

Cobalt Catalyst ◽

Organometallic Compounds ◽

Structure Property ◽

Structure Property Relationship ◽

Crystal Phases ◽

Organometallic Precursors ◽

Saturated Carbon Atom ◽

Ceramic Nanocomposites

Abstract Four organometallic compounds were synthesized for solid-state pyrolysis (SSP) to research the structure-property relationship between the precursors and the as-generated magnetic ceramic nanocomposites (MCNs). In which, the only saturated carbon atom in MC was replaced by N or O or S atom, to produce MN, MO and MS, respectively. It was found that, the crystal phase of the cobalt catalyst could be regulated by introducing different heteroatoms during the pyrolysis: fcc-Co for MC/MN, while fcc/hcp-Co hybrid for MO/MS. Metal cobalt with different crystal phases has their special catalytic and magnetic properties. Thus, MCNs with totally different morphology, composition and properties could be prepared by just changing one heteroatom in the precursors upon SSP. Uniform nanotubes were generated from pyrolysis of MC/MN, while nanospheres were generated from MO/MS. The obtained MCNs all show excellent magnetic properties with Ms ranged from 47.6 to 54.2 emu g-1. Analyzing carefully, due to the magnetic difference between fcc-Co and hcp-Co, the Ms of the MCNs obtained from MO/MS were slightly lower than those of MC/MN, but, their Mr and Hc were 2 to 5 times higher than the latter.

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A Quantitative Structure-Property Relationship (QSPR) Study of Aliphatic Alcohols by the Method of Dividing the Molecular Structure into Substructure

International Journal of Molecular Sciences ◽

10.3390/ijms12042448 ◽

2011 ◽

Vol 12 (4) ◽

pp. 2448-2462 ◽

Cited By ~ 7

Author(s):

Fengping Liu ◽

Chenzhong Cao ◽

Bin Cheng

Keyword(s):

Molecular Structure ◽

Aliphatic Alcohols ◽

Quantitative Structure ◽

Structure Property ◽

Quantitative Structure Property Relationship ◽

Property Relationship ◽

Structure Property Relationship ◽

Qspr Study

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Predicting Gas Chromatographic Retention Time of Polychlorinated Dibenzo-p-Dioxins from Molecular Structure

Zeitschrift für Physikalische Chemie ◽

10.1524/zpch.2002.216.4.451 ◽

2002 ◽

Vol 216 (4) ◽

Cited By ~ 2

Author(s):

Eduardo J. Delgado ◽

Adelio Matamala ◽

Joel B. Alderete

Keyword(s):

Molecular Structure ◽

Retention Time ◽

Chromatographic Retention ◽

Quantitative Structure ◽

Structure Property ◽

Qspr Model ◽

Quantitative Structure Property Relationship ◽

Property Relationship ◽

Structure Property Relationship

A quantitative structure-property relationship (QSPR) model is developed to correlate the gas chromatographic retention time of polychlorinated dibenzo-

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A practical strategy for construction and regulation of multi-functional triazepinium salts via highly efficient I2-catalyzed cyclization

Green Chemistry ◽

10.1039/c9gc04328d ◽

2020 ◽

Vol 22 (10) ◽

pp. 3111-3116

Author(s):

Lang Liu ◽

Mengyao She ◽

Jun Zhang ◽

Zhaohui Wang ◽

Hua Liu ◽

...

Keyword(s):

Solid State ◽

Structure Property ◽

Highly Efficient ◽

Property Relationship ◽

Practical Strategy ◽

Structure Property Relationship ◽

Solid State Fluorescence

Developing a highly efficient I2-catalyzed cyclization for constructing triazepine derivatives, which have excellent solid-state fluorescence performances, and analyzing the structure–property relationship.

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