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4. CONCLUSIONS SnO2 and Sb2O3 mixed oxides coating layer is successfully prepared on highly alloyed steel Cr18Ni12Ti by dipping - thermal decomposition method from the solution of SnCl4 and SbCl3 with isopropanol and HCl medium. The changing of phase structure, morphology, resistivity, HV hardness and corrosion resistance of coating layer depen...

8 trang | Chia sẻ: thucuc2301 | Ngày: 28/11/2020 | Lượt xem: 739 | Lượt tải: 0

Table 3 shows that the rate of electro-oxidation reaction of glycerol with using Pt-PdNi/GC electrode is faster than using Pt-pure. The obtained results were consistent with the results shown in Table 2 and in the analysis cyclic voltammogram [6]. 4. CONCLUSION In summary, cyclic voltammetry method studied process electro-oxidation of glycerol i...

6 trang | Chia sẻ: thucuc2301 | Ngày: 28/11/2020 | Lượt xem: 729 | Lượt tải: 0

4. CONCLUSIONS Layered double hydroxide/graphene oxide hybrid intercalated with corrosion inhibitor 2- benzothiazolylthio-succinic acid was successfully synthesized using the coprecipitation method. The polarization curves obtained on carbon steel show that LDH-BTSA and LDH/GO-BTSA are anodic corrosion inhibitors and their efficiencies at the c...

7 trang | Chia sẻ: thucuc2301 | Ngày: 28/11/2020 | Lượt xem: 682 | Lượt tải: 0

The burning of coal and petroleum by industry and power plants liberates huge amounts of sulfur dioxide (SO2) which reacts with atmospheric water and oxygen to produce sulfuric acid. This sulfuric acid is a component of acid rain, which lowers the pH of soil and freshwater bodies, resulting in substantial damage to the natural environment and chemi...

48 trang | Chia sẻ: yendt2356 | Ngày: 28/11/2020 | Lượt xem: 660 | Lượt tải: 0

4. CONCLUSION The influence of Pr concentration on the magnetic properties and magnetocaloric effect of the Fe90-xPrxZr10 (x = 1, 2 and 3) rapidly quenched alloy ribbons have been investigated. The ribbons manifest their almost amorphous structure and soft magnetic behavior. Magnetic phase transitions of the alloy ribbons can be regulated by ch...

7 trang | Chia sẻ: thucuc2301 | Ngày: 28/11/2020 | Lượt xem: 586 | Lượt tải: 0

4. CONCLUSION In summary, we studied the role of the magnetic interaction between magnetic clusters on heating dissipation of magnetic fluid of prepared Mn0.7Zn0.3Fe2O4 nanoparticles in an alternating field. Our results implied that magnetic interactions between magnetic clusters affect directly to the large value of the SLP for Mn0.7Zn0.3Fe2O4...

9 trang | Chia sẻ: thucuc2301 | Ngày: 28/11/2020 | Lượt xem: 683 | Lượt tải: 0

3. CONCLUSIONS In the present work, the Bi1.6Pb0.4Sr2Ca2-xNaxCu3O10+δ samples (with x was ranged from 0.00 to 0.06) were fabricated by using the conventional solid state reaction technique. The structural properties of the samples examined by using XRD and SEM measurements showed that Na-substitution enhanced formations of the Bi-2223 phase. Th...

9 trang | Chia sẻ: thucuc2301 | Ngày: 28/11/2020 | Lượt xem: 723 | Lượt tải: 0

So với phương pháp dihydrat thì phương pháp HH Ưu điểm  Giảm chi phí đầu tư hệ thống cô đặc  Sản phẩm H3PO4 tinh khiết hơn  Yêu cầu quặng nghiền thấp hơn Nhược điểm  Tốc độ lọc thấp hơn  Mất mát P 2O5 nhiều hơn  Ăn mòn thiết bị cao hơn  Đóng cặn trong đường ống và thiết bị

50 trang | Chia sẻ: yendt2356 | Ngày: 28/11/2020 | Lượt xem: 942 | Lượt tải: 0

4. CONCLUSION A serie of calculations using density functional theory (DFT) employed rather high level of theory B3P86/6-311+G(d) has been performed for searching the possible infrared vibrational spectra of SinMn2+ clusters (n = 5-9), which are not yet available in literature. We believe our finding results would be useful for theoretical unde...

8 trang | Chia sẻ: thucuc2301 | Ngày: 28/11/2020 | Lượt xem: 659 | Lượt tải: 0

Trong monoamonphotphat đã chứa 11.0,417 = 4,6%N, do đó phải bổ sung (10 – 4,6) = 5,4%N Hàm lượng cực tiểu của đạm cần phải có trong chất thứ 3 là 5,4:0,25 = 21,6% > %N trong SA  phải bổ sung đạm bằng amoni nitrat hoặc ure

32 trang | Chia sẻ: yendt2356 | Ngày: 28/11/2020 | Lượt xem: 1172 | Lượt tải: 0