MXene is a new type of layered two-dimensional transition metal carbide materials differing from graphene, demonstrating intriguing chemical/physical properties. Here the chemical modification of MXene and next fabric...MXene is a new type of layered two-dimensional transition metal carbide materials differing from graphene, demonstrating intriguing chemical/physical properties. Here the chemical modification of MXene and next fabrication of core-shell MXene-COOH@(PEI/PAA)_n composites have been investigated. The obtained MXene-based composites were treated with gold nanoparticles to form MXene—COOH@(PEI/PAA)_n@AuNPs nanocomposites, and their catalytic properties for nitro-compounds were studied. The prepared nanocomposites demonstrated good catalytic activity and reproducibility, showing potential applications in composite catalysts and environmental fields.展开更多
The reaction of [Et4N]2[Mo2(SC6H11)2(CO)8] and I2 in MeCN affords a new dinu- clear molybdenum(I) complex [Mo2(SC6H11)2(CO)6(CH3CN)2] 1 (Mr = 672.46). The crystal and molecular structures have been determined by X-r...The reaction of [Et4N]2[Mo2(SC6H11)2(CO)8] and I2 in MeCN affords a new dinu- clear molybdenum(I) complex [Mo2(SC6H11)2(CO)6(CH3CN)2] 1 (Mr = 672.46). The crystal and molecular structures have been determined by X-ray single-crystal diffraction. 1 crystallizes in monoclinic, space group P21/c with a = 9.302(1), b = 15.514(2), c = 9.307(1) ?, β = 92.979(2)o, V = 1341.4(3) ?3, Z = 2, Dc = 1.665 g/cm3, μ = 11.28 cm-1, F(000) = 676, R = 0.0461 and wR = 0.1274 for 1702 observed reflections with I > 2σ(I). 1 possesses a rhombic bimetallic core MoS2Mo with the Mo–Mo bond length of 2.9712(4) ? and Mo–S of 2.4821(5) ?.展开更多
Based on the method of compound and additional conditions under the conditions of the equal temperature rise and the equal potential drop (P.D.) of resistance, the application of design software of dry-type air-core r...Based on the method of compound and additional conditions under the conditions of the equal temperature rise and the equal potential drop (P.D.) of resistance, the application of design software of dry-type air-core reactor is introduced in this thesis. The analytical methods of the inductance are also given. This approach is proved entirely feasible in theory through the simplification with Bartky transformation, and is able to quickly and accurately calculate reactor inductance. This paper presents the analytical methods of the loss of dry-type air-core reactor as well.展开更多
基金financially supported by the National Natural Science Foundation of China (Nos.21473153 and 51771162)Support Program for the Top Young Talents of Hebei Province,China Postdoctoral Science Foundation (No.2015M580214)+1 种基金the Scientific and Technological Research and Development Program of Qinhuangdao City (No.201701B004)Undergraduate Training Programs for Innovation and Entrepreneurship of Yanshan University (No.CXXL2017227)
文摘MXene is a new type of layered two-dimensional transition metal carbide materials differing from graphene, demonstrating intriguing chemical/physical properties. Here the chemical modification of MXene and next fabrication of core-shell MXene-COOH@(PEI/PAA)_n composites have been investigated. The obtained MXene-based composites were treated with gold nanoparticles to form MXene—COOH@(PEI/PAA)_n@AuNPs nanocomposites, and their catalytic properties for nitro-compounds were studied. The prepared nanocomposites demonstrated good catalytic activity and reproducibility, showing potential applications in composite catalysts and environmental fields.
文摘The reaction of [Et4N]2[Mo2(SC6H11)2(CO)8] and I2 in MeCN affords a new dinu- clear molybdenum(I) complex [Mo2(SC6H11)2(CO)6(CH3CN)2] 1 (Mr = 672.46). The crystal and molecular structures have been determined by X-ray single-crystal diffraction. 1 crystallizes in monoclinic, space group P21/c with a = 9.302(1), b = 15.514(2), c = 9.307(1) ?, β = 92.979(2)o, V = 1341.4(3) ?3, Z = 2, Dc = 1.665 g/cm3, μ = 11.28 cm-1, F(000) = 676, R = 0.0461 and wR = 0.1274 for 1702 observed reflections with I > 2σ(I). 1 possesses a rhombic bimetallic core MoS2Mo with the Mo–Mo bond length of 2.9712(4) ? and Mo–S of 2.4821(5) ?.
文摘Based on the method of compound and additional conditions under the conditions of the equal temperature rise and the equal potential drop (P.D.) of resistance, the application of design software of dry-type air-core reactor is introduced in this thesis. The analytical methods of the inductance are also given. This approach is proved entirely feasible in theory through the simplification with Bartky transformation, and is able to quickly and accurately calculate reactor inductance. This paper presents the analytical methods of the loss of dry-type air-core reactor as well.
