Formation of Graphene Oxide Nanocomposites from Carbon Dioxide Using Ammonia Borane

来自 ACS

阅读量：

作者：

J Zhang，Y Zhao，X Guan，RE Stark，DL Akins，JW Lee

展开

摘要：

To efficiently recycle CO2 to economically viable products such as liquid fuels and carbon nanomaterials, the reactivity of CO2 is required to be fully understood. We have investigated the reaction of CO2 with ammonia borane (AB), both molecules being able to function as either an acid or a base, to obtain more insight into the amphoteric activity of CO2. In the present work, we demonstrate that CO2 can be converted to graphene oxide (GO) using AB at moderate conditions. The conversion consists of two consecutive steps: CO2 fixation (CO2 pressure <3 MPa and temperature <100 °C) and graphenization (600–750 °C under 0.1 MPa of N2). The first step generates a solid compound that contains methoxy (OCH3), formate (HCOO), and aliphatic groups, while the second graphenization is the pyrolysis of the solid compound to produce graphene oxide–boron oxide nanocomposites, which have been confirmed by micro-Raman spectroscopy, solid-state 13C and 11B magic angle spinning-nuclear magnetic resonance (MAS NMR), transmiss...

展开

关键词：

Hydrogen production Steam reforming Kinetic mechanism Model discrimination

DOI：

10.1021/jp210295e

被引量：

年份：

2012