Spherical and Radiate Ni Particles Prepared by the Tartrate Precipitation and Thermal Decomposition Method

Nickel tartrate precursor particles were synthesized by the liquid phase precipitation method in an ethanol-water-ammonia mixed solution, with tartaric acid and using nickel chlorate as raw materials, with the pH value controlled at 4.0, and the temperature controlled at 50 ℃. Nickel particles with complicated morphology were prepared by the decomposition of nickel taratrate precursor particles at temperatures of 360, 380 and 400 ℃, respectively. The study of infrared spectroscopy （IR） indicated that the product was pure nickel tartrate. The studies of the atomic absorption spectrometry （AAS） and organic elemental analysis （OEA） indicated that the molar ratio of Ni2＋ to （C4H4O6）2- is close to 1：1. The studies of the differential scanning calorimeter and thermo-gravimetric analysis （DSC-TG） indicated that the chemical formula Niz（C4H4O6） 2.5H2O was confirmed. The studies of X-ray diffractions （XRD） indicated that the silvery white metal powders were pure Ni, with a face-centered cubic crystal structure. The images of scanning electron microscopy （SEM） showed that the morphology of metal Ni particles was obvious spherical and radiate. The diameter of nickel tartrate particles was about 60 μm, which consisted of many nanolathes; and the diameter of metal Ni particles was about 30 μm, which consisted of many lathes about 0.5 μm in thickness.

思政课程在材料制备与测试分析群建设中的探索与实践

材料制备与测试分析是现代材料科学的重要组成部分,开展该类课程的课程思政教学改革与探索,对培养具有创新能力和社会担当的优秀工程人才具有重要意义。文章基于材料制备与测试分析课程群建设,探讨了该课程群融入思政元素的意义,并从课程思政教学目标、课程思政体系建设机制与措施、教学方法、教学环节融合、课程群团队建设等角度,探索了课程思政教学的改革与实践。

纳米ZnO/电气石复合粉体的制备及其对亚甲基蓝光催化性能的研究

以NaOH、ZnSO4·7H2O和电气石为原料,采用室温固相法制备纳米ZnO/电气石复合粉体。采用X射线衍射仪(XRD)、扫描电子显微镜(SEM)对复合粉体的物相及形貌进行了表征,并考察了复合粉体对亚甲基蓝的光催化降解性能。实验结果表明,纳米ZnO可紧密地包覆在电气石表面形成ZnO/电气石复合粉体。光催化降解实验、紫外-可见漫反射光谱、荧光光谱分析等测试表明,添加电气石粉体可有效地提高ZnO/电气石复合粉体的光吸收能力、荧光发射能力以及对亚甲基蓝的光催化降解性能。

本科毕业论文质量控制体系的构建——以绵阳师范学院化学类专业为例

本科毕业论文对高校人才培养起着非常重要的作用,也是衡量教学管理水平的重要依据.本文分析了绵阳师范学院化学类专业本科毕业论文的主要问题,探讨了这些问题产生的原因;并从教学管理的角度出发,结合本学院在工作中的实践探索,建立了本科毕业论文质量控制体系,以期提高本科毕业论文质量.

“新工科”背景下地方高师院校材料类专业建设面临挑战及对策

本文简要分析了新工科背景下,地方高师院校新办材料类专业建设与发展面临的挑战,并结合学校实践从人才培养模式、师资队伍建设、实践教学平台建设、课程建设、服务社会等方面提出了针对性对策,所得结果可为地方高师院校开设相关工科专业提供借鉴和参考.

炭黑导电浆料的制备及电性能分析

以炭黑为导电填料,氯醋树脂、羟丙树脂为固化材料制备了导电浆料,采用XRD、SEM和激光粒度分析仪等对导电浆料炭黑进行分析和表征,结果表明,导电填料炭黑是由100 nm以下的一次颗粒构成的粒度分布在6μm左右的类石墨结构的物质。研究了炭黑添加量对导电浆料粘度和方阻的影响,结果表明,通过调整炭黑的添加量可以改变导电浆料的粘度和方阻,最终制备了粘度适宜,方阻可达358Ω/m2的导电浆料。

Adsorption of Lead(II),Copper(II) on tourmaline from Altai mine in China's Sinkiang

Tourmaline from Altai mine in China＇s Sinkiang was used to remove lead （II）, copper （II） from aqueous solution. The results demonstrate that tourmaline contains Na（Mg,V）3AI6（BO3）3Si6Ols （OH）4, NaFe3AI6（BO3）3Si6Ols（OH）4. The data show that Tourmaline from Altai mine in China＇s Sinkiang can be used natural adsorbent for lead （II）, copper （II）.It is observed that the adsorption data fitted to the Langmuir isotherm. Furthermore, both Pb （II） and Cu （II） absorbed by tourmaline and tourmaline were characterized by X-ray diffraction, Laser Raman Spectrum, Fourier transform infrared spectroscopy, X-ray energy dispersive spectrometer, Transmission electron microscopy and Zeta potential.

电阻浆料用导电填料的研究现状分析及展望

作为一种应用前景广阔的电子浆料,电阻浆料近年来发展迅速,以国内外电阻浆料研究为基础,分析了导电填料(金属、石墨、炭黑、碳纳米管、碳纤维、生物炭、石墨烯、石墨烯复合导电填料)的研究现状,并对其发展趋势进行了展望,从而为电阻浆料的研发和生产提供参考。