CO 2 /CH 4 in our samples ACB-2 and 5 have been measured at 298 and 348 K and different compositions, corresponding to the pre-and postcombustion conditions for CO 2 capture. The Dual-Site Langmuir-Freundlich (DSLF) model-based ideal-adsorbed solution theory (IAST) was also used to solve the selectivity of CO 2 over N 2 and CH 4 . The selectivities of ACBs for CO 2 /CH 4 are in the range of 2-2.5, while they remain in the range of 6.0-8.0 for CO 2 /N 2 at T ¼ 298 K. In summary, this work presents a new type of adsorbent-ACBs, which are not only good candidates for CO 2 and CH 4 storage but also for the capture of carbon dioxide in pre-and postcombustion processes. *S BET is the BET surface area and S Langmuir is the Langmuir surface area. V t , V DA , and V meso are the total pore volume, micro-pore volume, and meso-pore volume, respectively.
The
Li-rich Mn-based cathode (LMR) has been considered as the most
promising candidate for the next-generation secondary lithium-ion
batteries. However, it suffers from structure degradation and oxygen
release during cycling. To address this problem, a Li[Li0.133Mn0.467Ni0.2Co0.2]O1.95F0.05 cathode material was synthesized via polyacrylamide-assisted
carbonate coprecipitation. With the partial replacement of an oxygen–metal
(M–O) bond with a fluorine–metal (M–F) bond,
the initial columbic efficiency, cycle performance, and voltage degradation
have been improved effectively. In situ X-ray diffraction upon heating
reveals that the structure stability of LMR can be improved by F-doping.
The charge compensation of F-doped LMR is revealed by X-ray absorption
spectroscopy during cycling. It is found that Mn reduction upon cycling
can be suppressed effectively by F-doping in LMR. These results provide
an in-depth understanding of F-doping effect on the optimization of
Li-rich cathode materials for advanced lithium-ion batteries.
scite is a Brooklyn-based organization that helps researchers better discover and understand research articles through Smart Citations–citations that display the context of the citation and describe whether the article provides supporting or contrasting evidence. scite is used by students and researchers from around the world and is funded in part by the National Science Foundation and the National Institute on Drug Abuse of the National Institutes of Health.