71026-66-9Relevant articles and documents
Combined Intrinsic and Extrinsic Proton Conduction in Robust Covalent Organic Frameworks for Hydrogen Fuel Cell Applications
Andaloussi, Yassin H.,Chen, Yao,Cheng, Peng,He, Xueyi,Jiang, Zhongyi,Ma, Shengqian,Yang, Yi,Zhang, Hailu,Zhang, Penghui,Zhang, Zhenjie
, p. 3678 - 3684 (2020)
Developing new materials for the fabrication of proton exchange membranes (PEMs) for fuel cells is of great significance. Herein, a series of highly crystalline, porous, and stable new covalent organic frameworks (COFs) have been developed by a stepwise synthesis strategy. The synthesized COFs exhibit high hydrophilicity and excellent stability in strong acid or base (e.g., 12 m NaOH or HCl) and boiling water. These features make them ideal platforms for proton conduction applications. Upon loading with H3PO4, the COFs (H3PO4?COFs) realize an ultrahigh proton conductivity of 1.13×10?1 S cm?1, the highest among all COF materials, and maintain high proton conductivity across a wide relative humidity (40–100 %) and temperature range (20–80 °C). Furthermore, membrane electrode assemblies were fabricated using H3PO4?COFs as the solid electrolyte membrane for proton exchange resulting in a maximum power density of 81 mW cm?2 and a maximum current density of 456 mA cm?2, which exceeds all previously reported COF materials.
Selective primary aniline synthesis through supported Pd-catalyzed acceptorless dehydrogenative aromatization by utilizing hydrazine
Lin, Wei-Chen,Yamaguchi, Kazuya,Yatabe, Takafumi
supporting information, p. 6530 - 6533 (2021/07/07)
By utilizing hydrazine (N2H4) as the nitrogen source in the presence of a hydroxyapatite-supported Pd nanoparticle catalyst (Pd/HAP), various primary anilines can be selectively synthesized from cyclohexanonesviaacceptorless dehydrogenative aromatization. The strong nucleophilicity of N2H4and the stability of the hydrazone intermediates can effectively suppress the formation of the undesired secondary aniline byproducts.
SARs of a novel series of s-triazine compounds targeting vimentin to induce methuotic phenotype
Zhang, Lei,Qu, Zhipeng,Wu, Jianping,Yao, Shining,Zhang, Qingqing,Zhang, Tao,Mo, Lian,Yao, Qizheng,Xu, Ying,Chen, Ruihuan
, (2021/02/09)
Herein, we describe the design, synthesis and structure?activity relationships of a series of novel s-triazine compounds can induce methuotic phenotype in various types of cancer cells. (E)-1-(4-Chlorophenyl)-3-(4-((4-morpholino-6-styryl-1,3,5-triazine-2-yl)amino)phenyl)urea, compound V6, exhibited a striking methuotic phenotype with a minimal effective concentration of less than 10 nM in U87 glioblastoma cells. Based on structure?activity relationship studies, we designed and synthesized an active probe P1 that retained the full potential of V6 in inducing the methuotic phenotype in U87 glioblastoma cells. Using this probe following affinity-based proteomic profiling strategy, we identified vimentin as the specific target protein of compound V6. Molecular docking revealed that V6 can form hydrogen bonds with vimentin at 273R and 276Y in its rod domain.