Radical anion functionalization of two-dimensional materials as a means of engineering simultaneously high electronic and ionic conductivity solids

  title={Radical anion functionalization of two-dimensional materials as a means of engineering simultaneously high electronic and ionic conductivity solids},
  author={K{\'a}roly N{\'e}meth},
  • K. Németh
  • Published 13 July 2020
  • Physics, Materials Science, Medicine
  • Nanotechnology
A radical anion based functionalization of the basal plane of hexagonal boron nitride (h-BN) and other two-dimensional materials is proposed in the present study. The resulting materials can reversibly be oxidized without the detachment of the functional groups from the basal plane and can thus serve as surface-intercalation type cathode electroactive species and fast solid ion conductors at the same time. The functionalization of h-BN with [·OBX3]− radical anions (X=F, Cl) in the presence of… Expand


Radical anion functionalization of two-dimensional materials as a means of engineering simultaneously high electronic and ionic conductivity solids.
The tunability of the electronic properties of A n [(BN)2OBX3] via the cation concentration (n) allows for its application as multifunctional material in energy storage devices, simultaneously serving as cathode active species, solid electrolyte, electroconductive additive, separator, heat conductor and coating for metal anodes that enables dendrite-free plating. Expand
Reversible intercalation of hexagonal boron nitride with Brønsted acids.
X-ray photoelectron and vibrational spectra, as well as electronic structure and molecular dynamics calculations, demonstrate that noncovalent interactions of these oxyacids with the basic N atoms of the sheets drive the intercalation process. Expand
Oxygen radical functionalization of boron nitride nanosheets.
The influence of the functional groups grafted to the surface of the BNNSs is investigated by demonstrating the impact on mechanical properties of both noncovalent and covalent bonding at the interface between the nanofiller and polymer matrixes. Expand
Soluble, Exfoliated Hexagonal Boron Nitride Nanosheets
Hexagonal boron nitride (h-BN), the isoelectric analogue of graphite, was functionalized using lipophilic and hydrophilic amine molecules. The functionalization induced the exfoliation of the layeredExpand
Simultaneous oxygen and boron trifluoride functionalization of hexagonal boron nitride: a designer cathode material for energy storage
  • K. Németh
  • Materials Science, Physics
  • Theoretical Chemistry Accounts
  • 2018
Covalent functionalization is a way to tune the electrochemical properties of hexagonal boron nitride (h-BN) monolayers. The wide bandgap insulator h-BN may become metallic conductor uponExpand
Non-chemical fluorination of hexagonal boron nitride by high-energy ion irradiation.
It was shown that the high-energy ion irradiation leads to a single-sided fluorination ofh-BN by the formation of the fluorinatedsp3-hybridized BN. Expand
Experimental and theoretical investigations of functionalized boron nitride as electrode materials for Li-ion batteries
The feasibility of synthesizing functionalized h-BN (FBN) via the reaction between molten LiOH and solid h-BN is studied for the first time and its first ever application as an electrode material inExpand
Dibromocarbene Functionalization of Boron Nitride Nanosheets: Toward Band Gap Manipulation and Nanocomposite Applications
We report the covalent functionalization of exfoliated boron nitride nanosheets (BNNSs) using dibromocarbene (DBC) species. The functionalization of BNNSs is enabled as the nanosheets are utilized asExpand
Intercalation of Hexagonal Boron Nitride by Strong Oxidizers and Evidence for the Metallic Nature of the Products
Abstract Hexagonal boron nitride, h -BN, is intercalated, at ∼20°C, by S 2 O 6 F 2 (the source of the powerfully oxidizing SO 3 F • radical) to give a deep blue solid (BN) ∼3 SO 3 F, which is aExpand
Thermodynamic investigations of ternary lithium-transition metal-oxygen cathode materials
Abstract The reaction of lithium with three transition metal oxides (MnO, LiFeO 2 , and LiCoO 2 ) has been investigated by an equilibrium electrochemical technique in cells of the type: (−) Al, LiExpand