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畢業(yè)論文-金屬有機(jī)骨架材料zif-7晶體的合成-資料下載頁(yè)

2025-01-12 19:19本頁(yè)面
  

【正文】 (含職稱(chēng)): ( 副 教授) 專(zhuān)業(yè)負(fù)責(zé)人: 1.設(shè)計(jì)(論文)的主要任務(wù)及目標(biāo) 主要 任務(wù): 采用 溶劑熱法 合成的研究方法,分析在實(shí)驗(yàn)中,反應(yīng)時(shí)間,硝酸鋅 和 BIM在 DMF 中 的摩爾比對(duì)實(shí)驗(yàn)結(jié)果的影響。 目標(biāo): ,得出不同的反應(yīng)條件對(duì)形成 ZIF7 的影響,并探究其原因。 ZIF7 的性能變化趨勢(shì),并找到合適的反應(yīng)條件來(lái)提高 ZIF7 的性能。 2.論文的基本要求和內(nèi)容 要求:( 1)撰寫(xiě)格式規(guī)范、工整,章節(jié)內(nèi)容明晰; ( 2)數(shù)據(jù)真實(shí)可信、圖表準(zhǔn)確,分析合理; ( 3)外文翻譯準(zhǔn)確,且與課題相關(guān); ( 4)結(jié)論具有代表性及再現(xiàn)性。 內(nèi)容:( 1)運(yùn)用溶劑熱法制備 ZIF7 晶體,并探究制備 ZIF7 的其他方法。 ( 2)探究不同比例的反應(yīng)物料對(duì)實(shí)驗(yàn)結(jié)果的影響,以及溫度,時(shí)間對(duì)晶體質(zhì)量的影響。 ( 3)通過(guò) X 射線(xiàn)粉末衍射( XRD)表征材料結(jié)晶的好壞和結(jié)晶度的高低。 ( 4)通過(guò)掃描電子顯微鏡( SEM)表征材料的晶體形貌及其晶體顆粒的尺寸大小和分布情況。 ( 5)通過(guò)紅外光譜分析表征材料的晶體結(jié)構(gòu) 和化學(xué)鍵的組成。 ( 6)通過(guò)熱重分析( TGA)表征化合物穩(wěn)定性。 3.主要參考文獻(xiàn) [1]劉娟,金屬有機(jī)化合物 IRMOF3ZIF7 的制備及成膜研究 —大連理工大學(xué)碩士學(xué)位論文 —— [2]伊作娟,高翔,鮮學(xué)福 .金屬 有機(jī)絡(luò)合聚合物( MOCPs)的研究進(jìn)展 [J]?;瘜W(xué)與粘合 .2022:6165 [3]高分子材料的微波輔助合成研究進(jìn)展 邱靜 , 李倩倩 , 朱俊 , 肖尚友 (重慶大學(xué)化太原工業(yè)學(xué)院畢業(yè) 論文 XXV 學(xué)化工學(xué)院 , 重慶 400030) [4]Zhao J, Wang Z, Wang J X, WangS C. J. Membr. Sci., 2022,283: 346—356 [5]Yaghi O M,et Synthesis of Zeolitic Imidazolate Frameworks and Application to CO2 Capture [J].,2(1 5),3 1 9 [6]Ai Ning, Li Baohong, Chen Jian, Foi Weiyang. Measurement of CO2 solubilities in dimethyl carbonate[J]. Chemical Engineering, 2022, 33(3): 5 154 [7]石秀梅,幾種過(guò)渡金屬郵寄配體化合物的光譜研究 [D]:吉林大學(xué); 2022. [8]陳敬中,現(xiàn)代晶化學(xué):理論與方法 [M]:高等教育出版社; 2022. [9]趙禎霞,類(lèi)沸石金屬有機(jī)骨架 MZIF的微波合成及其促進(jìn) THF水合物生成 [D]:華南理工大學(xué): 2022. 4.進(jìn)度安排 設(shè)計(jì)(論文)各階段名稱(chēng) 起 止 日 期 1 查閱文獻(xiàn)資料,分析任務(wù)書(shū)(開(kāi)題報(bào)告) —— 2 準(zhǔn)備原材料,制定實(shí)驗(yàn)方案,技術(shù)路線(xiàn) —— 3 材料制備,性能測(cè)試,結(jié)構(gòu)表征(中期檢查) —— 4 補(bǔ)充實(shí)驗(yàn)(查漏補(bǔ)遺,驗(yàn)證實(shí)驗(yàn)) —— 5 編寫(xiě)、審核設(shè)計(jì)論文(預(yù)答辯) —— ——2022520 6 論文審閱、修改 —— 太原工業(yè)學(xué)院畢業(yè) 論文 XXVI a 您好,為你提供優(yōu)秀的畢業(yè)論文參考資料,請(qǐng)您刪除以下內(nèi)容, O(∩_∩)O 謝謝?。?!A national survey was recently launched to evaluate the eye health of Chinese children June 6, China39。s annual National Day for Eye Care, the China Youth Development ServiceCenter and Zhejiang Medicine, a leading listed Chinese pharmaceutical pany, jointlyannounced the kickoff of the about one month, a questionnaire piled by top eye care medical experts in China willbe distributed through multiple online partners, including , as well asthrough offline survey events held in universities, middle schools and primary schools acrossthe report will be released based on the survey statistics and analysis, and most importantly,guidelines for parents and youth on how to care for the eyes and prevent myopia — agrowing problem in China39。s digitized society, will also be attached on the report.Myopia is not only a disease that makes people see things blurrily, but also leads to severeplications, such as glaua (increased pressure within the eyeball), and can causeblindness, said Zhou Yuehua, an established eye care specialist with Beijing TongrenHospital.It is very important for parents and children to know about the risk and care for their eyes.There are about 450 million myopia patients in China. Among Chinese myopia patients,30million are severe patients, according to ZhouThe prevalence of myopia among high school and college students is more than 70 percent,and the situation is continuously worsening, he Zhu, director with the China Youth Development Service Center, said long hours ofstudy, lack of exercise, especially outdoor activities, and attachment to electronic screen aresome of the top reasons behind the widespread myopia problems, and the increase ofyounger patients, although China has made great progress in improving the hardwarefacilities and lighting conditions in said he hopes the survey will alert people on the threatening situation, and also helpmedical experts to better guideline parents and children39。s behaviors to care for eyes, basedon the timely and factual statistics the survey series of followup events will also be held in six cities, including Jinan in Shandongprovince, and Changsha in Hunan province, to educate people on how to care for eyes afterthe survey started. More and more Chinese are jogging to get and stay fit. Most joggers will run alone, but some will jog with friends or even coaches. The Beijing Olympic Forest Park is one of the most popular spots. It is packed with runners in the afternoon, usually after work, and at weekends. Jogging after a whole day39。s work can be a way to unwind. It is true for He Wenjun, whose workplace is right near the forest park. She discovered her athletic aptitude at the age of seven, when she began playing tennis. Then she turned to jogging, and she has persevered with it for 10 years. I e to jog almost every day after work, whenever I have time. I think jogging is good for my health. And for me, a girl, it helps me to achieve to eternal goal, to keep slim, He said. He says she prefers jogging alone, so she can focus better. She loves jogging, even during Beijing39。s smoggy days. If the smog is severe, I39。ll hold off jogging for a while. But if I really want to get away from work, I39。ll wear a mask, or just ignore the smog and go on jogging, she said. For those who are not so athletic, jogging also has its attractions. Wu Houbin started roughly two years ago, when he was severely obese. Within two months, his weight dropped from 82 kilograms to 64 kilograms. The success helped him recover health, and he has made friends. Jogging does not require speed, but stamina. If you want to stick to the game, you need to take it as a mission, a habit, and then eventually a hobby, Wu said. But persevering with jogging is not always easy. Jogging is beneficial for heartlung function, and the skeletal system, but doctors say improper technique damages the joints, especially the knees and ankles. Excessive jogging wears down the body, and harms one39。s health. Poor technique harms the muscles and skeleton, and can cause secondary injures. And, jogging in a bad environment can cause circulation problems, said Lu Zhiyong, attending doctor, Sports Hospital, General Admin. of . Lu has some tips for joggers, and those who are thinking of taking it says people sh ould first evaluate their physical condition, to decide the amount and type of exercise, and jogging
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