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Hamidreza Arandiyan,Lei Ma,S.M. Hashemnejad,M.Z. Mirzaei,Jinghuan Chen,Huazhen Chang,Caixia Liu,Chizhong Wang,Liang Chen,Junhua Li 한국공업화학회 2012 Journal of Industrial and Engineering Chemistry Vol.18 No.6
The perovskite metal-oxides LaNixFe1-xO3 (0 ≤ x ≤ 1) were synthesized by a sol–gel method and investigated for the DR, POM, and CRM into synthesis gas. The catalysts were characterized by using XRD,BET, CA, SEM, EDS, HR-TEM, EDX and TPR in order to investigate the influence of the preparation parameters and evaluation condition. LaNi0.4Fe0.6O3 showed great stability, and fewer carbon deposits were detected on the spent catalyst after 1800 min evaluation on TOS. The effect of GHSV on the catalytic performance was investigated. The results obtained showed the H2/CO molar-ratio was around 0.9, 1.7,and 1.1 over different catalysts for DR, POM and CRM, respectively.
Mali, Sawanta S.,Patil, Jyoti V.,Arandiyan, Hamidreza,Hong, Chang Kook The Royal Society of Chemistry 2019 Journal of Materials Chemistry A Vol.7 No.29
<P>Due to their high efficiency and stability, triple-cation based perovskite solar cells (PSCs) have now crossed 23% power conversion efficiency (PCE). However, the perovskite composition and type of the electron transport layer (ETL) play a key role in improving their performance. Therefore, in the present investigation, high quality TiO2/SnO2 bilayer ETLs and thermally stable reduced methylammonium (MA) cation based triple-cation perovskite layers are used to fabricate thermally stable PSCs. By retaining their normal (n-i-p) device architecture, the influence of antisolvents on the perovskite layer has been investigated in detail. Systematic studies in this work reveal that the amorphous SnO2/TiO2 bilayer and the trifluorotoluene (TFT) processed perovskite layer significantly influence the current density and open circuit voltage (<I>V</I>OC) and reduce the charge recombination of perovskite devices. The optimised devices having micrometer size grains exhibited >20.5 ± 0.5% PCE for a thermally stable Rb0.05(FAPbI3)0.95(MAPbBr3)0.05 perovskite composition with a SnO2/TiO2 bilayer ETL. Furthermore, the SnO2:TiO2 bilayer ETL-containing PSCs are thermally stable for more than 200 hours at 80 °C.</P>