This article was accepted into the corpus but its outbound wikilinks were never NER-processed — typical at the deepest BFS hop or when the run's entity cap was reached. No expansion funnel to show.
| Nitrogen-doped graphene | |
|---|---|
| Name | Nitrogen-doped graphene |
| Composition | Graphene lattice with substitutional nitrogen |
| Types | Pyridinic nitrogen, pyrrolic nitrogen, graphitic nitrogen, oxidized nitrogen |
| Applications | Electrocatalysis, energy storage, sensors, electronics |
Nitrogen-doped graphene is a chemically modified form of graphene in which nitrogen atoms substitute for carbon within the hexagonal lattice or bind at defect sites, altering chemical reactivity and electronic structure. It combines the two-dimensional morphology of graphene with heteroatom functionality to tune conductivity, catalytic activity, and surface chemistry for diverse technological applications. Research spans fundamental studies by institutions and corporations, collaborations among universities, national laboratories, and industrial partners, and is cited in materials science, chemistry, and engineering literatures.
Nitrogen-doped graphene occupies a central role in contemporary materials research pursued by groups at Massachusetts Institute of Technology, Stanford University, Harvard University, University of Cambridge, California Institute of Technology, ETH Zurich, Max Planck Society, Imperial College London, Tsinghua University, Peking University, University of Tokyo, Seoul National University, National University of Singapore, University of California, Berkeley, Oak Ridge National Laboratory, Argonne National Laboratory, Lawrence Berkeley National Laboratory, Rensselaer Polytechnic Institute, University of Illinois at Urbana–Champaign, Columbia University, Yale University, University of Manchester, University of Oxford, Swiss Federal Laboratories for Materials Science and Technology, Korean Advanced Institute of Science and Technology, Nanyang Technological University, University of Toronto, Imperial College, University of Melbourne, Monash University, University of Sydney, Seoul National University Hospital, IBM, Samsung, Intel Corporation, BASF, 3M, Siemens, Toyota, Boeing, NASA, European Space Agency, National Aeronautics and Space Administration, US Department of Energy, European Commission and many research consortia. Landmark conferences addressing this topic include meetings associated with the Materials Research Society, American Chemical Society, Gordon Research Conferences, International Conference on Nanoscience and Technology, and IEEE symposia.
Common approaches derive from precursor selection and process engineering developed in laboratories such as Bell Labs and facilities at Brookhaven National Laboratory. Methods include chemical vapor deposition (CVD) using nitrogen-containing gases and metal catalysts influenced by techniques from BASF and DuPont; thermal annealing of graphene oxide with ammonia inspired by protocols at Rice University; plasma-enhanced deposition reminiscent of work at Sandia National Laboratories; solvothermal and hydrothermal routes analogous to procedures in studies at Chinese Academy of Sciences; and ion implantation analogous to semiconductor processing from Intel Corporation and Texas Instruments. Post-synthetic modification via diazonium chemistry follows organic methodologies advanced at University of California, Los Angeles and Ecole Normale Supérieure. Each route benefits from advances in catalyst design from Johnson Matthey and reactor engineering from General Electric.
The incorporation of nitrogen yields local structural motifs—pyridinic, pyrrolic, graphitic, and oxidized nitrogen—characterized in works from Max Planck Institute for Polymer Research and National Institute for Materials Science. These motifs modify band structure, carrier concentration, and Dirac point shifts, topics explored by theorists at Princeton University, University of Pennsylvania, Cornell University, Los Alamos National Laboratory, and Argonne National Laboratory. Electronic consequences include n-type doping, tunable work function, and localized states that affect transport properties relevant to devices designed by Intel Corporation, Qualcomm, Samsung Electronics, TSMC, and Taiwan Semiconductor Manufacturing Company. Structural defects and grain boundaries studied in collaboration with Helmholtz Association groups influence mechanical strength and fracture behavior, with implications drawn from comparative studies at MIT and Caltech.
Characterization combines spectroscopy, microscopy, and scattering methods used across facilities such as Lawrence Berkeley National Laboratory, Brookhaven National Laboratory, Diamond Light Source, European Synchrotron Radiation Facility, SLAC National Accelerator Laboratory, National Synchrotron Light Source II, and MAX IV Laboratory. Techniques include X-ray photoelectron spectroscopy (XPS) protocols refined at Oak Ridge National Laboratory; Raman spectroscopy developments associated with Columbia University and University of Manchester; scanning tunneling microscopy (STM) and atomic force microscopy (AFM) methods from IBM Research and University of Basel; transmission electron microscopy (TEM) imaging techniques evolved at Harvard University and EMBL; and electron energy loss spectroscopy (EELS) as applied at Argonne National Laboratory. Computational spectroscopy and density functional theory simulations originate in groups at University of Cambridge, University of California, Berkeley, ETH Zurich, Swiss Federal Institute of Technology Lausanne, and Imperial College London.
Nitrogen-doped graphene is exploited for oxygen reduction reaction (ORR) catalysis in fuel cells pursued by Toyota, General Motors, Ford Motor Company, Shell, BP, and Chevron; as anode and cathode materials in lithium-ion and sodium-ion batteries developed by Panasonic, LG Chem, Samsung SDI, and CATL; in supercapacitors built by startups and consortia associated with Siemens and Bosch; as gas and biosensors for detection applications used by companies like Honeywell and Abbott Laboratories; and as components in flexible electronics explored by Sony, LG Electronics, Ericsson, Nokia, Huawei, Xiaomi, and Google. Photocatalytic and electrocatalytic systems link to projects at National Renewable Energy Laboratory and Fraunhofer Society. Biomedical and drug-delivery research touches institutions such as Mayo Clinic and Johns Hopkins University.
Key challenges include reproducible control of nitrogen configuration and concentration, scale-up of high-quality materials for commercialization addressed by Dow Chemical Company and DuPont, long-term stability problems reported by industrial consortia involving BASF and Evonik Industries, integration with silicon technologies championed by Intel Corporation and TSMC, and health and safety assessments performed by World Health Organization and National Institutes of Health. Standardization of metrics remains under discussion at venues like ISO and research agendas coordinated by European Research Council and National Science Foundation.
Future work will emphasize atomic-scale engineering guided by theories from Institute for Advanced Study collaborators and high-throughput experimentation supported by infrastructure at CERN and national laboratories. Interdisciplinary programs combining efforts from Wellcome Trust, Bill & Melinda Gates Foundation, Chan Zuckerberg Initiative, and public-private partnerships aim to translate lab-scale demonstrations into devices for energy, sensing, and electronics. Scaling pathways may follow manufacturing strategies from Toyota Production System adaptations in chemical plants run by companies such as BASF and Dow. Continued interaction among academic centres including MIT, Stanford, Caltech, Oxford, Cambridge, ETH Zurich, Peking University, and Tsinghua University and industry stakeholders like Intel, Samsung, Toyota, and Siemens will drive advances.
Category:Graphene Category:Nitrogen compounds