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991.
Nguyen Van Hoang Le Nguyen Minh Tran Hue Phuong Tran Van Man Tran Nhan Thanh Le My Loan Phung 《Journal of Solid State Electrochemistry》2021,25(3):767-775
Journal of Solid State Electrochemistry - In this work, Cu-doped NaFe0.5Co0.5O2 was easily prepared by a one-step solid-state reaction and studied the effect of copper salt precursors including... 相似文献
992.
Alexander A. Greish Pavel V. Sokolovskiy Elena D. Finashina Leonid M. Kustov Alexander I. Vezentsev Nguyen Dinh Chien 《Mendeleev Communications》2021,31(1):121-122
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993.
Tran Thi-Minh-Dinh Duong Thuc-Huy Tran Thanh-Nha Nguyen Thi-Hang Nguyen Ngoc-Phuong Nguyen Ngoc-Hong Dinh Minh-Hiep Nguyen Thi-Anh-Tuyet 《Chemistry of Natural Compounds》2021,57(2):388-389
Chemistry of Natural Compounds - 相似文献
994.
Nguyen Chi-Dung Pham Thi-My-Ninh Ha Thi-Bich-Hang Nguyen Thi-Phuong Nguyen Huu-Hung Phan Hoang-Vinh-Truong Duong Thuc-Huy Dinh Minh-Hiep 《Chemistry of Natural Compounds》2021,57(2):392-394
Chemistry of Natural Compounds - 相似文献
995.
996.
Huy Dong Pham Thi Huyen My Dang Thi Tuyet Nhung Nguyen Thi Anh Huong Nguyen Thi Ngoc Mai Pham Tien Duc Pham 《Electrophoresis》2021,42(3):191-199
The aim of the present study is to determine four anionic alkyl sulfate (AS) surfactants with different alkyl chains, namely, C8, C10, C12, and C14, in wastewater by CE with capacitively coupled contactless conductivity detection (CE-C4D). The conditions effective for the separation of the four AS surfactants were systematically optimized and found to be in a Tris-His (50 mM/20 mM) BGE solution at a pH of 8.95, using a separation voltage of +15 kV, hydrodynamic injection by siphoning using a 20 cm injection height and an injection time of 20 s. The LODs for C8, C10, C12, and C14 were 2.58, 2.30, 2.08, and 3.16 mg/L, respectively. The conditions used to achieve the simultaneous adsorption and preconcentration of the AS surfactants using Al2O3 beads were pH of 3 and 0.1 mM NaCl. The adsorption efficiencies were found to be 45.6, 50.8, 81.7, and 99.9%, while the desorption efficiencies reached 66.1, 70.4, 83.9, and 100.0% for C8, C10, C12, and C14, respectively. The concentrations of the AS surfactants in wastewater samples were quantified by CE-C4D after preconcentration by simultaneous adsorption using Al2O3 beads. The results obtained from the proposed method were consistent with those obtained by HPLC-MS/MS, with a deviation of less than 15%. Our results indicate that the CE-C4D performed after preconcentration by an adsorption technique using Al2O3 beads is a new, inexpensive, and suitable method for quantifying AS surfactants in wastewater samples. 相似文献
997.
Van Loat Bui Duong Van-Hao Duong Nguyen Thanh Leuangtakoun Somsavath Duc Thang Duong Anh Hung Vu Anh Duc Vu Tran Hoai-Nam Nguyen Van-Dung Thi Huyen-Trang Vuong 《Journal of Radioanalytical and Nuclear Chemistry》2021,329(2):991-1000
Journal of Radioanalytical and Nuclear Chemistry - The 226Ra, 232Th (228Ra), 40K activity concentrations in soil distributed in 67 points belonging to different geological formations in Khammouan,... 相似文献
998.
Asadi Amin Alarifi Ibrahim M. Nguyen Hoang M. Moayedi Hossein 《Journal of Thermal Analysis and Calorimetry》2021,143(2):1439-1454
Journal of Thermal Analysis and Calorimetry - The main objective of the present paper was to investigate the feasibility of the least-square support vector machine (LSSVM) in predicting the effects... 相似文献
999.
Dr. Akira Matsumoto Bich-Ngoc Nguyen Tsubasa Honda Dr. Ryu Sakamoto Dr. Xiao Huang Prof. Dr. Shigeyoshi Sakaki Prof. Dr. Keiji Maruoka 《化学:亚洲杂志》2021,16(4):282-286
This article describes the synthetic application of ketone-derived oxaziridines as alkyl radical precursors in copper-catalyzed Carbon-Carbon bond formation reactions. Experimental and computational studies indicate a free radical mechanism, where alkyl radicals are efficiently generated via cleavage of a Carbon-Carbon bond of oxaziridines. Acyclic and unstrained cyclic oxaziridines are applicable to the present radical process, allowing for the generation of various alkyl radicals with good functional group compatibility. 相似文献
1000.
Ruhui Chen Quynh N. Nguyen Ming Zhao Zitao Chen Dr. Miaofang Chi Prof. Dr. Younan Xia 《Chemistry (Weinheim an der Bergstrasse, Germany)》2021,27(8):2760-2766
Noble-metal nanocrystals with anisotropic shapes have received increasing interest owing to their unique properties. Here, a facile route to the preparation of Pt nanobars with aspect ratios tunable up to 2.1 was reported by simply reducing a PtIV precursor in N,N-dimethylformamide (DMF) at 160 °C in the presence of poly(vinyl pyrrolidone) (PVP). In addition to its commonly observed roles as a solvent and a reductant, DMF could also decompose to generate CO, a capping agent capable of selectively passivating Pt{100} facets to promote the formation of nanobars. The size and aspect ratio of the nanobars could be tuned by varying the amount of PtIV precursor involved in the synthesis, as well as the concentration of PVP because of its dual roles as a stabilizer and a co-reductant. Our mechanistic study indicated that the anisotropic growth resulted from both particle coalescence and localized oxidative etching followed by preferential growth. 相似文献