Supercritical CO 2 -philic nanoparticles suitable for determining the viability of carbon sequestration in shale
Abstract
© The Royal Society of Chemistry. A fracture spacing less than a decimeter is probably required for the successful sequestration of CO2 in shale. Tracer experiments using inert nanoparticles could determine if a fracturing this intense has been achieved. Here we describe the synthesis of supercritical CO2-philic nanoparticles suitable for this application. The nanoparticles are ~50 nm in diameter and consist of iron oxide (Fe3O4) and silica (SiO2) cores functionalized with a fluorescent polymeric corona. The nanoparticles stably disperse in supercritical carbon dioxide (scCO2) and are detectable to concentrations of 10 ppm. This journal isCitation
Xu Y, Chen L, Zhao Y, Cathles LM, Ober CK (2015) Supercritical CO 2 -philic nanoparticles suitable for determining the viability of carbon sequestration in shale . Environ Sci: Nano 2: 288–296. Available: http://dx.doi.org/10.1039/c5en00003c.Sponsors
We acknowledge the Cornell KAUST Center for Sustainable Energy Development for financial support of Xu and Chen and for providing laboratory space and analytical instrumentation. We acknowledge the financial support of DOE (grant DE-FE0004633) and NSFC (21306049). We also acknowledge the Cornell Center for Materials Research (CCMR) for electron microscopy analysis.Publisher
Royal Society of Chemistry (RSC)Journal
Environ. Sci.: NanoISSN
2051-81532051-8161
Handle URI
http://hdl.handle.net/10754/599800ae974a485f413a2113503eed53cd6c53
10.1039/c5en00003c