Doping Nanoscale Graphene Domains Improves Magnetism in Hexagonal Boron Nitride

Carbon doping can induce unique and interesting physical properties in hexagonal boron nitride (h‐BN). Typically, isolated carbon atoms are doped into h‐BN. Herein, however, the insertion of nanometer‐scale graphene quantum dots (GQDs) is demonstrated as whole units into h‐BN sheets to form h‐CBN. The h‐CBN is prepared by using GQDs as seed nucleations for the epitaxial growth of h‐BN along the edges of GQDs without the assistance of metal catalysts. The resulting h‐CBN sheets possess a uniform distrubution of GQDs in plane and a high porosity macroscopically. The h‐CBN tends to form in small triangular sheets which suggests an enhanced crystallinity compared to the h‐BN synthesized under the same conditions without GQDs. An enhanced ferromagnetism in the h‐CBN emerges due to the spin polarization and charge asymmetry resulting from the high density of CN and CB bonds at the boundary between the GQDs and the h‐BN domains. The saturation magnetic moment of h‐CBN reaches 0.033 emu g−1 at 300 K, which is three times that of as‐prepared single carbon‐doped h‐BN.

[1]  Chem. , 2020, Catalysis from A to Z.

[2]  Yihui Zhang,et al.  Magnetization distribution and spin transport of graphene/h-BN/graphene nanoribbon-based magnetic tunnel junction , 2017 .

[3]  Xinchen Wang,et al.  Carbon-Doped BN Nanosheets for the Oxidative Dehydrogenation of Ethylbenzene. , 2017, Angewandte Chemie.

[4]  P. Ajayan,et al.  Fluorinated h-BN as a magnetic semiconductor , 2017, Science Advances.

[5]  S. K. Behera,et al.  Controlling the bandgap in graphene/h-BN heterostructures to realize electron mobility for high performing FETs , 2017 .

[6]  Y. Bando,et al.  Tuning of the Optical, Electronic, and Magnetic Properties of Boron Nitride Nanosheets with Oxygen Doping and Functionalization , 2017, Advanced materials.

[7]  Ozgur Yazaydin,et al.  Design of electric field controlled molecular gates mounted on metal–organic frameworks , 2017 .

[8]  R. Kitaura,et al.  Orientation-controlled growth of hexagonal boron nitride monolayers templated from graphene edges , 2017 .

[9]  Liancheng Wang,et al.  Facile Fabrication of BCN Nanosheet-Encapsulated Nano-Iron as Highly Stable Fischer-Tropsch Synthesis Catalyst. , 2017, ACS applied materials & interfaces.

[10]  Daniel P. Miller,et al.  Graphene-like Boron-Carbon-Nitrogen Monolayers. , 2017, ACS nano.

[11]  M. Pumera,et al.  Doping with Graphitic Nitrogen Triggers Ferromagnetism in Graphene , 2017, Journal of the American Chemical Society.

[12]  D. Portehault,et al.  Porous Boron Carbon Nitride Nanosheets as Efficient Metal-Free Catalysts for the Oxygen Reduction Reaction in Both Alkaline and Acidic Solutions , 2017 .

[13]  Jun Yuan,et al.  Capture the growth kinetics of CVD growth of two-dimensional MoS2 , 2016, npj 2D Materials and Applications.

[14]  Jingyu Sun,et al.  Seed-Assisted Growth of Single-Crystalline Patterned Graphene Domains on Hexagonal Boron Nitride by Chemical Vapor Deposition. , 2016, Nano letters.

[15]  Qin Li,et al.  Quantum-confined bandgap narrowing of TiO2 nanoparticles by graphene quantum dots for visible-light-driven applications. , 2016, Chemical communications.

[16]  N. S. Das,et al.  Colossal magnetoresistance in amino-functionalized graphene quantum dots at room temperature: manifestation of weak anti-localization and doorway to spintronics. , 2016, Nanoscale.

[17]  J. Warner,et al.  Generalized Mechanistic Model for the Chemical Vapor Deposition of 2D Transition Metal Dichalcogenide Monolayers. , 2016, ACS nano.

[18]  S. Okada,et al.  Magnetic Properties of Graphene Quantum Dots Embedded in h-BN Sheet , 2016 .

[19]  Qiang Sun,et al.  Recent advances in hybrid graphene‐BN planar structures , 2016 .

[20]  Zhongfan Liu,et al.  Hexagonal Boron Nitride-Graphene Heterostructures: Synthesis and Interfacial Properties. , 2016, Small.

[21]  S. H. Tsang,et al.  Controllable Synthesis of Highly Luminescent Boron Nitride Quantum Dots. , 2015, Small.

[22]  P. Ajayan,et al.  Synthesis of Low-Density, Carbon-Doped, Porous Hexagonal Boron Nitride Solids. , 2015, ACS nano.

[23]  Peiyi Wu,et al.  Facile preparation and multifunctional applications of boron nitride quantum dots. , 2015, Nanoscale.

[24]  Sungjoo Lee,et al.  Single Crystalline Film of Hexagonal Boron Nitride Atomic Monolayer by Controlling Nucleation Seeds and Domains , 2015, Scientific Reports.

[25]  James J. Mudd,et al.  van der Waals epitaxy of monolayer hexagonal boron nitride on copper foil: growth, crystallography and electronic band structure , 2015 .

[26]  Jingyu Sun,et al.  Temperature-triggered chemical switching growth of in-plane and vertically stacked graphene-boron nitride heterostructures , 2015, Nature Communications.

[27]  Jinlong Yang,et al.  Tunable Electronic and Magnetic Properties of Graphene Flake-Doped Boron Nitride Nanotubes , 2014 .

[28]  Jia-rui Xu,et al.  Polyimide nanocomposites with boron nitride-coated multi-walled carbon nanotubes for enhanced thermal conductivity and electrical insulation , 2014 .

[29]  T. Xu,et al.  Gram-scale synthesis of single-crystalline graphene quantum dots with superior optical properties , 2014, Nature Communications.

[30]  X. Bai,et al.  Carbon‐Doped Boron Nitride Nanosheets with Ferromagnetism above Room Temperature , 2014 .

[31]  Dezheng Yang,et al.  Intrinsic ferromagnetism in hexagonal boron nitride nanosheets. , 2014, The Journal of chemical physics.

[32]  P. Ajayan,et al.  Direct chemical conversion of graphene to boron- and nitrogen- and carbon-containing atomic layers , 2014, Nature Communications.

[33]  Mark H Griep,et al.  Growth of large single-crystalline two-dimensional boron nitride hexagons on electropolished copper. , 2014, Nano letters.

[34]  W. Mitchel,et al.  Prospects of direct growth boron nitride films as substrates for graphene electronics , 2013, 1310.1870.

[35]  Xuebin Wang,et al.  One‐Step Template‐Free Synthesis of Highly Porous Boron Nitride Microsponges for Hydrogen Storage , 2014 .

[36]  Martin Pumera,et al.  Searching for magnetism in hydrogenated graphene: using highly hydrogenated graphene prepared via Birch reduction of graphite oxides. , 2013, ACS nano.

[37]  Aydin Babakhani,et al.  In-plane heterostructures of graphene and hexagonal boron nitride with controlled domain sizes. , 2013, Nature nanotechnology.

[38]  J. Coleman,et al.  Oxygen radical functionalization of boron nitride nanosheets. , 2012, Journal of the American Chemical Society.

[39]  Andreas Winter,et al.  Three‐Dimensional Nitrogen and Boron Co‐doped Graphene for High‐Performance All‐Solid‐State Supercapacitors , 2012, Advanced materials.

[40]  Pinshane Y. Huang,et al.  Graphene and boron nitride lateral heterostructures for atomically thin circuitry , 2012, Nature.

[41]  S. Woo,et al.  Binary and ternary doping of nitrogen, boron, and phosphorus into carbon for enhancing electrochemical oxygen reduction activity. , 2012, ACS nano.

[42]  Moon J. Kim,et al.  Toward the controlled synthesis of hexagonal boron nitride films. , 2012, ACS nano.

[43]  Magnetic states and optical properties of single-layer carbon-doped hexagonal boron nitride , 2012, 1205.3477.

[44]  J. Baek,et al.  BCN graphene as efficient metal-free electrocatalyst for the oxygen reduction reaction. , 2012, Angewandte Chemie.

[45]  C. Fan,et al.  Radiation induced reduction: an effective and clean route to synthesize functionalized graphene , 2012 .

[46]  B. K. Gupta,et al.  Graphene quantum dots derived from carbon fibers. , 2012, Nano letters.

[47]  M. Jiang,et al.  Anomalous paramagnetism in graphene on hexagonal boron nitride substrates , 2011 .

[48]  Zhengtang Luo,et al.  Chemical Vapor Deposition of Boron Nitride Nanosheets on Metallic Substrates via Decaborane/Ammonia Reactions , 2011 .

[49]  Y. Zheng,et al.  Size-dependent oriented attachment in the growth of pure and defect-free hexagonal boron nitride nanocrystals , 2011, Nanotechnology.

[50]  Binsong Li,et al.  Independent Tuning of the Band Gap and Redox Potential of Graphene Quantum Dots. , 2011, The journal of physical chemistry letters.

[51]  S. Pei,et al.  Control and characterization of individual grains and grain boundaries in graphene grown by chemical vapour deposition. , 2010, Nature materials.

[52]  Zheng Yan,et al.  Growth of graphene from solid carbon sources , 2010, Nature.

[53]  Yunhao Lu,et al.  Density functional theory study of BN-doped graphene superlattice: Role of geometrical shape and size , 2010 .

[54]  Jing Kong,et al.  Synthesis of few-layer hexagonal boron nitride thin film by chemical vapor deposition. , 2010, Nano letters.

[55]  S. Louie,et al.  Electronic transport in polycrystalline graphene. , 2010, Nature materials.

[56]  I. Grigorieva,et al.  Limits on intrinsic magnetism in graphene. , 2010, Physical review letters.

[57]  Deep Jariwala,et al.  Atomic layers of hybridized boron nitride and graphene domains. , 2010, Nature materials.

[58]  C N R Rao,et al.  Graphene analogues of BN: novel synthesis and properties. , 2010, ACS nano.

[59]  Takashi Taniguchi,et al.  Far-ultraviolet plane-emission handheld device based on hexagonal boron nitride , 2009 .

[60]  C. Zhi,et al.  Large‐Scale Fabrication of Boron Nitride Nanosheets and Their Utilization in Polymeric Composites with Improved Thermal and Mechanical Properties , 2009 .

[61]  Kenji Watanabe,et al.  Deep Ultraviolet Light-Emitting Hexagonal Boron Nitride Synthesized at Atmospheric Pressure , 2007, Science.

[62]  Possible graphitic-boron-nitride-based metal-free molecular magnets from first principles study , 2005, cond-mat/0503045.

[63]  M. Nagano,et al.  X-ray photoelectron spectroscopic observation on B–C–N hybrids synthesized by ion beam deposition of borazine , 2005 .

[64]  D. Tománek,et al.  Itinerant ferromagnetism in heterostructured C/BN nanotubes , 2003 .

[65]  P. Esquinazi,et al.  Can Carbon Be Ferromagnetic , 2002 .

[66]  S. Okada,et al.  Magnetic ordering in hexagonally bonded sheets with first-row elements. , 2001, Physical review letters.

[67]  S. Okada,et al.  Border states in heterosheets with hexagonal symmetry , 2000 .

[68]  S. Itoh,et al.  Structural stability of BC2N , 1996 .