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Related Concept Videos

Network Covalent Solids02:18

Network Covalent Solids

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Network covalent solids contain a three-dimensional network of covalently bonded atoms as found in the crystal structures of nonmetals like diamond, graphite, silicon, and some covalent compounds, such as silicon dioxide (sand) and silicon carbide (carborundum, the abrasive on sandpaper). Many minerals have networks of covalent bonds.
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Metallic solids such as crystals of copper, aluminum, and iron are formed by metal atoms. The structure of metallic crystals is often described as a uniform distribution of atomic nuclei within a “sea” of delocalized electrons. The atoms within such a metallic solid are held together by a unique force known as metallic bonding that gives rise to many useful and varied bulk properties.
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Updated: Apr 28, 2026

Fabrication of Three-Dimensional Graphene-Based Polyhedrons via Origami-Like Self-Folding
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Classification framework for graphene-based materials.

Peter Wick1, Anna E Louw-Gaume, Melanie Kucki

  • 1Laboratory for Materials-Biology Interactions Empa, Swiss Federal Laboratories for Materials Science and Technology, Lerchenfeldstrasse 5, CH-9014 St. Gallen (Switzerland). Peter.Wick@empa.ch.

Angewandte Chemie (International Ed. in English)
|June 12, 2014
PubMed
Summary
This summary is machine-generated.

Confusion in naming graphene-based materials necessitates a clear classification system. The GRAPHENE Flagship Project defined key physical-chemical properties for consistent material identification.

Keywords:
classificationgraphenenanotechnologystructure-activity relationshiptoxicology

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Area of Science:

  • Materials Science
  • Nanotechnology
  • Chemistry

Background:

  • The naming of graphene-based materials (GBMs) currently lacks standardization, leading to confusion and inconsistency in scientific communication.
  • Clear classification is essential for reproducible research and effective collaboration in the field of advanced materials.

Purpose of the Study:

  • To address the ambiguity in graphene-based material nomenclature.
  • To propose a standardized classification approach for GBMs.

Main Methods:

  • Leveraging the definitions established by the GRAPHENE Flagship Project.
  • Utilizing three key physical-chemical properties for material classification.

Main Results:

  • A framework for the unequivocal classification of graphene-based materials has been established.
  • The proposed classification system relies on defined physical-chemical properties.

Conclusions:

  • The defined physical-chemical properties provide a robust method for classifying graphene-based materials.
  • This classification approach aims to resolve inconsistencies and improve clarity in GBM research and application.