A new cobalt Ⅲ complex, [CoL2(NCS)2]·2CH2Cl2, [L=4-(p-methylphenyl)-3,5-bis(pyridin-2-yl)-1,2,4-triazole], was synthesized and its crystal structure was determined by X-ray analysis. The complex crystallizes in ...A new cobalt Ⅲ complex, [CoL2(NCS)2]·2CH2Cl2, [L=4-(p-methylphenyl)-3,5-bis(pyridin-2-yl)-1,2,4-triazole], was synthesized and its crystal structure was determined by X-ray analysis. The complex crystallizes in monoclinic system with space group P21/ c, a=0.867 40(17), b=1.453 9(3), c=1.781 9(4) nm, 18(3)The cobalt atom is in a distorted octahedral environment with two bidentate chelating L ligands in the equatorial plane and t wo NCS-ions in the axial positions. CCDC: 251658.展开更多
Corrosion inhibition of benzotriazole(BTA) and its derivative CBTME on Cu in 3%NaCl solution was studied by SERS technique. The inhibition mechanism for BTA and CBTME on copper corrosion in the solution was found to b...Corrosion inhibition of benzotriazole(BTA) and its derivative CBTME on Cu in 3%NaCl solution was studied by SERS technique. The inhibition mechanism for BTA and CBTME on copper corrosion in the solution was found to be similar each other, by which a protective film is formed through the triazole ring. The substituent group ( -COOCH 3 ) of CBTME plays the role in the inhibition effect due to steric hindrance. A combination of BTA and CBTME showed a synergistic effect and the inhibition mechanism remained the same as individual species.展开更多
合成了3种新型苯并三氮唑(BTA)阳离子功能化的离子液体,首先将3种离子液体作为0.5 M H2SO4溶液的缓蚀剂,利用电化学测试方法考察了对铜锡合金的缓蚀性能,电化学阻抗谱图和动电位极化曲线测试结果表明:3种离子液体均能够有效地抑制0.5 M ...合成了3种新型苯并三氮唑(BTA)阳离子功能化的离子液体,首先将3种离子液体作为0.5 M H2SO4溶液的缓蚀剂,利用电化学测试方法考察了对铜锡合金的缓蚀性能,电化学阻抗谱图和动电位极化曲线测试结果表明:3种离子液体均能够有效地抑制0.5 M H2SO4溶液对铜锡合金的腐蚀,起到较好的缓蚀效果.考察了3种离子液体作为聚乙二醇(PEG)基础油添加剂时的摩擦学性能,结果表明:3种离子液体能够显著降低基础油的摩擦系数和磨损量,表现出较好的减摩抗磨性能.利用SEM-EDS和XPS对磨斑进行了分析表征,发现摩擦化学产物和离子液体吸附膜构成的边界润滑膜是产生减摩抗磨效果的主要原因.这种新型BTA阳离子功能化离子液体是一种兼具抗腐蚀性和优异摩擦学性能的多功能材料,在工业上具有非常广阔的应用前景.展开更多
文摘A new cobalt Ⅲ complex, [CoL2(NCS)2]·2CH2Cl2, [L=4-(p-methylphenyl)-3,5-bis(pyridin-2-yl)-1,2,4-triazole], was synthesized and its crystal structure was determined by X-ray analysis. The complex crystallizes in monoclinic system with space group P21/ c, a=0.867 40(17), b=1.453 9(3), c=1.781 9(4) nm, 18(3)The cobalt atom is in a distorted octahedral environment with two bidentate chelating L ligands in the equatorial plane and t wo NCS-ions in the axial positions. CCDC: 251658.
文摘Corrosion inhibition of benzotriazole(BTA) and its derivative CBTME on Cu in 3%NaCl solution was studied by SERS technique. The inhibition mechanism for BTA and CBTME on copper corrosion in the solution was found to be similar each other, by which a protective film is formed through the triazole ring. The substituent group ( -COOCH 3 ) of CBTME plays the role in the inhibition effect due to steric hindrance. A combination of BTA and CBTME showed a synergistic effect and the inhibition mechanism remained the same as individual species.
文摘合成了3种新型苯并三氮唑(BTA)阳离子功能化的离子液体,首先将3种离子液体作为0.5 M H2SO4溶液的缓蚀剂,利用电化学测试方法考察了对铜锡合金的缓蚀性能,电化学阻抗谱图和动电位极化曲线测试结果表明:3种离子液体均能够有效地抑制0.5 M H2SO4溶液对铜锡合金的腐蚀,起到较好的缓蚀效果.考察了3种离子液体作为聚乙二醇(PEG)基础油添加剂时的摩擦学性能,结果表明:3种离子液体能够显著降低基础油的摩擦系数和磨损量,表现出较好的减摩抗磨性能.利用SEM-EDS和XPS对磨斑进行了分析表征,发现摩擦化学产物和离子液体吸附膜构成的边界润滑膜是产生减摩抗磨效果的主要原因.这种新型BTA阳离子功能化离子液体是一种兼具抗腐蚀性和优异摩擦学性能的多功能材料,在工业上具有非常广阔的应用前景.
