TY - JOUR
T1 - Porous spherical carbon/sulfur nanocomposites by aerosol-assisted synthesis
T2 - The effect of pore structure and morphology on their electrochemical performance as lithium/sulfur battery cathodes
AU - Sohn, Hiesang
AU - Gordin, Mikhail L.
AU - Xu, Terrence
AU - Chen, Shuru
AU - Lv, Dongping
AU - Song, Jiangxuan
AU - Manivannan, Ayyakkannu
AU - Wang, Donghai
PY - 2014/5/28
Y1 - 2014/5/28
N2 - Porous spherical carbons (PSCs) with tunable pore structure (pore volume, pore size, and surface area) were prepared by an aerosol-assisted process. PSC/sulfur composites (PSC/S, S: ca.59 wt %) were then made and characterized as cathodes in lithium/sulfur batteries. The relationships between the electrochemical performance of PSC/S composites and their pore structure and particle morphology were systematically investigated. PSC/S composite cathodes with large pore volume (>2.81 cm3/g) and pore size (>5.10 nm) were found to exhibit superior electrochemical performance, likely due to better mass transport in the cathode. In addition, compared with irregularly shaped carbon/sulfur composite, the spherical shaped PSC/S composite showed better performance due to better electrical contact among the particles.
AB - Porous spherical carbons (PSCs) with tunable pore structure (pore volume, pore size, and surface area) were prepared by an aerosol-assisted process. PSC/sulfur composites (PSC/S, S: ca.59 wt %) were then made and characterized as cathodes in lithium/sulfur batteries. The relationships between the electrochemical performance of PSC/S composites and their pore structure and particle morphology were systematically investigated. PSC/S composite cathodes with large pore volume (>2.81 cm3/g) and pore size (>5.10 nm) were found to exhibit superior electrochemical performance, likely due to better mass transport in the cathode. In addition, compared with irregularly shaped carbon/sulfur composite, the spherical shaped PSC/S composite showed better performance due to better electrical contact among the particles.
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U2 - 10.1021/am404508t
DO - 10.1021/am404508t
M3 - Article
C2 - 24758613
AN - SCOPUS:84901684415
VL - 6
SP - 7596
EP - 7606
JO - ACS applied materials & interfaces
JF - ACS applied materials & interfaces
SN - 1944-8244
IS - 10
ER -