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Zhiying Liu,Yulin Li,Xiaohui Sun,Zhuyin Sui,Xiufeng Xu 한국공업화학회 2022 Journal of Industrial and Engineering Chemistry Vol.112 No.-
This study explored the feasibility of coupling N2O decomposition with ethylbenzene (EB) oxidativedehydrogenation, as an alternative approach for greenhouse gas elimination and styrene (ST) production,on the Co-Al mixed oxides and K-modified catalysts. It was found that N2O could decompose completelyover the K/Co2AlO4 catalyst, accompanied with 62.0% of EB conversion and 85.1% of styrene selectivity,which were much better than the existing catalyst systems for EB oxidative dehydrogenation. Characterization results showed that despite the decreased specific surface area of the catalysts withincreasing the Co/Al molar ratio, the improved reducibility, the reduced acid properties as well as thehigher ratio of Co3+/Co2+ were responsible for the enhanced performance. The K modification not onlychanged the electronic properties of active metal, resulting from the charge transfer from K cation tothe Co species, but also weakened the binding energy of Co3+-O, leading to the complete decompositionof N2O. Furthermore, the optimized strong acid properties inhibited the dealkylation or ring-openingreactions and significantly reduced the coke deposition on the catalyst surface, thus improving the STselectivity.
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Min Huang,Xinya Zhao,Hongzhi Xu,Suqing Liu,Zie Wang,Xiaohui Sui,Jing Li 대한진단검사의학회 2017 Annals of Laboratory Medicine Vol.37 No.5
Dear Editor, Determination of the percentage of blasts in the bone marrow (BM) is one of the critical factors in diagnosing MDS. Flow cytometry (FCM) of BM cells has been introduced as an important co-criterion for diagnosing MDS [1-3]. However, FCM has not been well accepted because of the lack of consensus of the criteria to define a phenotypic myeloblast and the appropriate denominator for calculation. Moreover, BM samples contain variable amounts of peripheral blood mixed with immature cells, thereby complicating interpretation. The present study was designed to choose reagent combinations to identify blasts by FCM in MDS patients, to determine which cell mass as the denominator in the process of counting the percentages of blasts, and to reveal whether the aspirates with high proportions of mature neutrophils should be normalized based on the proportion of dim CD16 maturing myeloid cells.
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