First in-flight synchrotron X-ray absorption and photoemission study of carbon soot nanoparticles.

ABSTRACT: Many studies have been conducted on the environmental impacts of combustion generated aerosols. Due to their complex composition and morphology, their chemical reactivity is not well understood and new developments of analysis methods are needed. We report the first demonstration of in-flight X-ray based characterizations of freshly emitted soot particles, which is of paramount importance for understanding the role of one of the main anthropogenic particulate contributors to global climate change. Soot particles, produced by a burner for several air-to-fuel ratios, were injected through an aerodynamic lens, focusing them to a region where they interacted with synchrotron radiation. X-ray photoelectron spectroscopy and carbon K-edge near-edge X-ray absorption spectroscopy were performed and

SUBMITTER: Ouf FX 

PROVIDER: S-EPMC5121651 | biostudies-literature | 2016 Nov

REPOSITORIES: biostudies-literature