以2-氨基对苯二甲酸,4,4′-联吡啶配体和硝酸铜为原料,在溶剂热的条件下,合成了一种的阴离子型三维金属有机框架(MOF)材料Cu(BDC-NH2)(4,4′-Bipy)0.5(BDC=对苯二甲酸根,Bipy=联吡啶).通过IR,XRD,SEM,TG,N2吸附法测比表面积等技术手段表征材料的结构和性能.研究了Cu(BDC-NH2)(4,4′-Bipy)0.5... ...
20.(10分)某研究小组以硫化铜精矿(含Zn、Fe元素的杂质)为主要原料制备Cu粉,按如下流程开展实验:硫酸溶液 过滤NH 过滤硫化铜精矿滤液高压H过滤Cu高压O2调节pH≈4步骤I步骤Ⅱ步骤Ⅲ已知:①硫化铜精矿在酸性条件下与氧气反应:2CuS +O2+2H2SO4 —2CuSO4+2S +2H2O②金属离子开始沉淀和沉淀完全的pH如表所示:F...
Herein, zirconium aminobenzenedicarboxylate metal–organic frameworks (UIO-66-NH2) is prepared by solvent thermal synthesis with 2-aminoterephthalic acid (H2BDC-NH2) as an organic ligand and Pt(acac)2 as Pt precursor. After high-temperature pyrolysis treatment (N2 atmosphere), Pt is loaded on the...
KB4532095-mô tả về bản Cập Nhật bảo mật cho SQL Server 2014 SP3 GDR: 11 tháng 2, 2020Applies ToSQL Server 2014 Tóm tắt Lỗ hổng thực thi mã từ xa tồn tại trong Microsoft SQL Server báo cáo dịch ...
“庄稼一枝花,离不开肥当家”.化学肥料与传统农家肥配合使用,对促进农作物增产、解决粮食短缺问题起了重要作用.下列属于复合肥料的是( ) A、硝酸铵[NH4NO3] B、碳酸钾[K2CO3] C、尿素[CO(NH2)2] D、磷酸二氢铵[NH4H2PO4]查看答案和解析>> 科目:高中化学 来源: 题型: 下列物质属于纯净物的是( ) ...
The 3D metal-organic framework (MOF), MIL-88B, built from the trivalent metal ions and the ditopic 1,4-Benzene dicarboxylic acid linker (H2BDC), distinguis... MY Zorainy,S Kaliaguine,M Gobara,... - 《Journal of Inorganic & Organometallic Polymers & Materials》 被引量: 0发表: 2021年...
在水热条件下合成了金属-有机配位聚合物:[Co(BDC)(phen)-(H2O)]n.3nH2O(BDC=1,4-benzenedicarboxylate,phen=1,10-phenanthroline),并通过元素分析,IR光谱,TG和单晶X-射线衍射对其进行了表征.结构表明该化合物属于三斜晶系:P-1(2)空间群组;晶胞参数a=9.795(5),b=10.752(5),c=11.271(5),α=75.903(5...
此文介绍一个一维梯状镉配位聚合物[Cd(nic)(bdc)0. 5(H_2O)_2]_n·2n H_2O(1)(Hnic=烟酸,H2bdc=1,4-苯二甲酸),并通过X-射线单晶衍射,元素分析,红外光谱,热重分析对其结构进行表征.梯形梯框为[Cd(nic)(H_2O)_2]+链,梯级为bdc2-配体.梯状长链通过氢键相互作用连接形成三维超分子网状结构,在...
A、甲烷的标准燃烧热为-890.3kJ?mol-1,表示1mol甲烷完全燃烧生成二氧化碳与液态水放出热量为890.3kJ,甲烷燃烧热的热化学方程式可表示为:CH4(g)+2O2(g)=CO2(g)+2H2O(l);△H=-890.3kJ?mol-1,故A错误;B、相同条件下的同一可逆反应,正逆反应反应热数值相等,符合相反,0.5molN2和1.5molH2置于密闭容器中充分...
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