Synthesis of Ternary Borocarbonitrides by High Temperature Pyrolysis of Ethane 1,2-Diamineborane

Abstract

Ethane 1,2-diamineborane (EDAB) is an alkyl-containing amine-borane adduct with improved hydrogen desorption properties as compared to ammonia borane. In this work, it is reported the high temperature thermolytic decomposition of EDAB. Thermolysis of EDAB has been investigated by concomitant thermogravimetry-differential thermal analysis-mass spectrometry experiments. EDAB shows up to four H2 desorption events below 1000 °C. Small fractions of CH4, C2H4 and CO/CO2 are also observed at moderate-high temperatures. The solid-state thermolysis product has been characterized by means of different structural and chemical methods, such as X-ray diffraction, Raman spectroscopy, Scanning electron microscopy, Elemental analysis, and X-ray photoelectron spectroscopy (XPS). The obtained results indicate the formation of a ternary borocarbonitride compound with a poorly-crystalline graphitic-like structure. By contrast, XPS measurements show that the surface is rich in carbon and nitrogen oxides, which is quite different to the bulk of the material.

Borocarbonitrides, BxCyNz: Synthesis, Characterization, and Properties with Potential Applications

“…23 High temperature treatment of ethane 1,2-diamineborane gives BCN with gas desorbing properties. 24 Thermal decomposition of N,N′-ethylmethylimidazoliumtetracyanoborate gives BC 3 N. 25 Mesoporous BCN obtained from C 3 N 4 and a borane complex exhibits a high surface area. 26 Melamine diborate heated at 1000 °C with nitrogen-doped graphene coated nickel foam under Ar/H 2 atmosphere yields BCN covered onto nickel foam.…”

“…Pyrolysis of a pyrrolidine-borane complex gives BC 1.5 N 0.4 and BC 0.9 N 0.4 while pyrolysis of poly­(borosesquicarbodiimide) gives [B 2 (NCN) 3 ] n . High temperature treatment of ethane 1,2-diamineborane gives BCN with gas desorbing properties . Thermal decomposition of N , N ′-ethylmethylimidazoliumtetracyanoborate gives BC 3 N .…”

Microporous Borocarbonitrides BxCyNz: Synthesis, Characterization, and Promises for CO2 Capture

“…The present work tends to synthesize a BCN material following a simple approach and to add some porosity in order to enhance the adsorption properties of CO 2 . Herein, we developed a synthesis protocol by adapting the thermal degradation of ethane 1,2-diamineborane (BH 3 NH 2 CH 2 CH 2 NH 2 BH 3 , EDAB) as depicted by Leardini et al and Martin et al [ 27 , 28 ]. EDAB was used as a BCN precursor in order to obtain a final ceramic with a B/C/N ratio of approximately 1/1/1.…”

Nanoceria‐Supported Ru‐Based Nanoparticles as Highly Efficient Catalysts for Hydrolysis of Ethane 1,2‐Diamine Borane

“…[5] However, the formation of some volatile side products such as ammonia, borazine, or diborane in the dehydrogenation of AB limits its employment in the on-board systems since they are poisonous for the fuel cells. [6,7,8] In this context, carbon derivatives of AB including methylamine borane (BH 3 NH 2 CH 3 , MeAB), [9,10] dimethylamine borane (BH 3 NH(CH 3 ) 2 , DMAB), [11] hydrazine borane (BH 3 N 2 H 4, HB), [12,13] and ethane 1,2-diamine borane ((BH 3 NH 2 CH 2 ) 2 , EDAB) [14,15] are regarded as very promising candidates.…”