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| Carbon–nitrogen materials | |
|---|---|
| Name | Carbon–nitrogen materials |
| Formula | C–N compounds |
| Category | Materials science |
Carbon–nitrogen materials are classes of substances in which carbon and nitrogen form extended networks, polymers, oligomers, or discrete molecules that exhibit diverse bonding motifs and functional behavior. These materials span covalent solids, crystalline phases, amorphous films, doped carbons, nitrides, and organic frameworks, and intersect with research in Mendeleev, Linus Pauling, Marie Curie, Erwin Schrödinger, and institutions such as Massachusetts Institute of Technology, Max Planck Society, University of Cambridge, Stanford University and Lawrence Berkeley National Laboratory. They underpin developments across Nobel Prize in Chemistry, Royal Society, National Academy of Sciences (United States), European Research Council, and industrial partners like Siemens, BASF, General Electric, Toyota Motor Corporation.
Carbon–nitrogen materials include nitrided carbons, covalent carbon nitrides, polymeric carbon nitride, graphitic carbon nitride, cyanamide-based networks, azide-functionalized polymers, and nitrogen-doped graphene and carbon nanotubes. Early theoretical and experimental milestones are associated with figures and organizations such as Robert Burns Woodward, Linus Pauling, G. N. Lewis, American Chemical Society, Royal Institution, Tokyo Institute of Technology, ETH Zurich and national laboratories including Argonne National Laboratory and Oak Ridge National Laboratory. Applications tie to companies and projects like Tesla, Inc., IBM, Intel, Siemens Energy, Shell plc, BP, and initiatives sponsored by National Science Foundation (United States), Horizon Europe, Japan Society for the Promotion of Science.
The bonding and structure of C–N frameworks derive from valence and hybridization concepts advanced by Linus Pauling, Niels Bohr, Gilbert N. Lewis, and computational methods from John Pople and Walter Kohn. Structures range from layered graphitic carbon nitride akin to Graphite to three-dimensional covalent solids analogous to Boron nitride and hypothetical superhard phases pursued by teams at Lawrence Livermore National Laboratory and Sandia National Laboratories. Molecular motifs include s-triazine rings found in studies at University of California, Berkeley and heptazine units investigated by researchers at University of Oxford and University of Tokyo. Nitrogen incorporation into sp2 networks yields doped graphene and nanotubes explored by groups at Rice University, University of Manchester, Columbia University, and Tsinghua University. Organometallic and coordination aspects are probed in contexts linked to Harvard University, Yale University, Princeton University, and California Institute of Technology.
Synthesis strategies include thermal condensation first reported in literature from University of Melbourne labs, chemical vapor deposition practiced by teams at IBM Research, solvothermal routes developed at Chinese Academy of Sciences, plasma-enhanced deposition used by Hitachi, and ion-implantation experiments from Fermi National Accelerator Laboratory. Precursors involve cyanamide, melamine, dicyandiamide investigated at University of Barcelona, University of Chile, and Peking University. Template-assisted growth employs techniques from MIT Media Lab collaborators, while electrochemical nitridation and ammonia treatment have been deployed at University of California, Los Angeles and Korea Advanced Institute of Science and Technology. Scale-up and commercialization paths have been pursued by entities including BASF, Dow Chemical Company, DuPont, and venture-backed startups linked to Y Combinator cohorts.
Physical and chemical properties such as band structure, hardness, thermal stability, and catalytic activity are characterized using methods from Bell Labs, Brookhaven National Laboratory, European Synchrotron Radiation Facility, and SLAC National Accelerator Laboratory. Optical and electronic behavior ties to discoveries awarded by Nobel Prize in Physics and techniques brought by researchers at University of Cambridge and ETH Zurich. Mechanical performance comparisons reference Diamond and Cubic boron nitride as benchmarks, while thermal management relates to Intel Corporation and NVIDIA device needs. Catalytic and photocatalytic properties have been explored for water splitting in studies affiliated with Lawrence Berkeley National Laboratory and Joint Center for Artificial Photosynthesis, with surface science collaborations involving Max Planck Institute for Iron Research and Forschungszentrum Jülich.
Applications span energy conversion and storage pursued by Toyota Motor Corporation, Panasonic Corporation, Samsung SDI, and research centers at MIT Energy Initiative; heterogeneous and photocatalysis relevant to projects funded by United States Department of Energy and European Commission; electronic and optoelectronic devices developed at Intel, IBM, Sony, and Samsung Electronics; sensors and membranes in collaborations with DuPont and 3M; and composite materials for aerospace and defense partners such as NASA, Boeing, and Lockheed Martin. Photocatalytic carbon–nitrogen networks have been targeted for hydrogen generation in consortia including Shell plc and academic partners like University of California, Santa Barbara.
Toxicology, exposure limits, and lifecycle assessment studies are carried out under frameworks from World Health Organization, Environmental Protection Agency (United States), European Chemicals Agency, Occupational Safety and Health Administration, and research hospitals such as Mayo Clinic and Johns Hopkins Hospital. Environmental fate and recycling considerations involve collaborations with United Nations Environment Programme and industrial ecology groups at Stockholm Resilience Centre and Carnegie Mellon University. Safety protocols reference standards from International Organization for Standardization and American National Standards Institute.
Key challenges and directions involve predictive materials discovery using tools from DeepMind, OpenAI, Google DeepMind, and computational platforms developed at Lawrence Livermore National Laboratory and Sandia National Laboratories; scalable manufacturing with partners including Siemens, BASF, Dow Chemical Company; integration into energy systems supported by International Energy Agency and World Economic Forum; and regulatory and ethical frameworks informed by United Nations and national science funding agencies such as National Science Foundation (United States) and Japan Society for the Promotion of Science. Interdisciplinary collaborations spanning Harvard University, Stanford University, MIT, University of Cambridge, and Max Planck Society will drive advances in synthesis, characterization, and deployment.