Nanoscale spectroscopic and mechanical characterization of individual aerosol particles using peak force infrared microscopy

2017 ◽  
Vol 53 (53) ◽  
pp. 7397-7400 ◽  
Author(s):  
Le Wang ◽  
Dandan Huang ◽  
Chak K. Chan ◽  
Yong Jie Li ◽  
Xiaoji G. Xu
Keyword(s):  
Particulate Matter ◽  
Spatial Resolution ◽  
Infrared Imaging ◽  
Mechanical Characterization ◽  
Aerosol Particles ◽  
Fine Particulate Matter ◽  
Peak Force ◽  
Infrared Microscopy ◽  
Fine Particulate

Individual fine particulate matter (PM2.5) particles are revealed with mechanical mapping and infrared imaging at 10 nm spatial resolution.

Spectro-mechanical Characterization of Aromaticity and Maturity of Kerogens in Oil Shale at 6 nm Spatial Resolution

2018 ◽  
Author(s):  
Devon Jakob ◽  
Le Wang ◽  
Haomin Wang ◽  
Xiaoji Xu
Keyword(s):  
Spatial Resolution ◽  
Oil Shale ◽  
Infrared Imaging ◽  
Mechanical Characterization ◽  
Optical Diffraction ◽  
Chemical Compositions ◽  
Valuable Insight ◽  
Eagle Ford Shale

<p>In situ measurements of the chemical compositions and mechanical properties of kerogen help understand the formation, transformation, and utilization of organic matter in the oil shale at the nanoscale. However, the optical diffraction limit prevents attainment of nanoscale resolution using conventional spectroscopy and microscopy. Here, we utilize peak force infrared (PFIR) microscopy for multimodal characterization of kerogen in oil shale. The PFIR provides correlative infrared imaging, mechanical mapping, and broadband infrared spectroscopy capability with 6 nm spatial resolution. We observed nanoscale heterogeneity in the chemical composition, aromaticity, and maturity of the kerogens from oil shales from Eagle Ford shale play in Texas. The kerogen aromaticity positively correlates with the local mechanical moduli of the surrounding inorganic matrix, manifesting the Le Chatelier’s principle. In situ spectro-mechanical characterization of oil shale will yield valuable insight for geochemical and geomechanical modeling on the origin and transformation of kerogen in the oil shale.</p>

SIZE SEGREGATED CHARACTERIZATION OF FINE PARTICULATE MATTER IN LEIPZIG AND MELPITZ AEROSOL

2001 ◽  
Vol 32 ◽  
pp. 353-354
Author(s):  
E. BRÜGGEMANN ◽  
T. GNAUK ◽  
K. MULLER ◽  
H. HERRMANN
Keyword(s):  
Particulate Matter ◽  
Fine Particulate Matter ◽  
Fine Particulate

Characterization of fine particulate matter generated in a large woody biomass-firing circulating fluid bed boiler

2021 ◽  
Vol 96 ◽  
pp. 11-18 ◽  
Author(s):  
Yishu Xu ◽  
Xiaowei Liu ◽  
Jiuxin Qi ◽  
Tianpeng Zhang ◽  
Jingying Xu ◽  
...  
Keyword(s):  
Particulate Matter ◽  
Fine Particulate Matter ◽  
Woody Biomass ◽  
Fine Particulate ◽  
Fluid Bed

Characterization of fine particulate matter in Ohio: Indoor, outdoor, and personal exposures

2008 ◽  
Vol 106 (1) ◽  
pp. 62-71 ◽  
Author(s):  
Kevin C. Crist ◽  
Bian Liu ◽  
Myoungwoo Kim ◽  
Seemantini R. Deshpande ◽  
Kuruvilla John
Keyword(s):  
Particulate Matter ◽  
Fine Particulate Matter ◽  
Fine Particulate ◽  
Personal Exposures
Sign in / Sign up

Export Citation Format

Share Document