Results 1 to 10 of about 439 (105)
Microcrystallite characters and photocatalytic activity of TiO2 doped with C60(掺C60二氧化钛微晶特性和光催化活性研究)
Zhejiang Daxue xuebao. Lixue ban, 2001 通过热分析、X射线衍射以及光活性测试，分析了不同掺杂量、不同煅烧温度下掺杂C60二氧化钛微晶样品，研究了掺杂对二氧化钛光活性的改善情况.C60掺杂二氧化钛体系中C60的热解温度明显提前，二氧化钛的晶化温度延迟、相变受到抑制且光活性得到一定程度的提高，其微晶参数也有一定规律变化.
JINDa-lai(金达莱) +3 more
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Zhejiang Daxue xuebao. Lixue ban, 1999 选择具有抗菌、抗氧化或抗炎镇痛的药物——水杨酸(HLⅠ)、阿斯匹林(HLⅡ)与具有抗癌活性的二氯二茂钛(Cp2TiCl2)在非水介质中反应, 得到两种具有潜在药理活性的茂钛配合物:Cp2Ti(LⅠ)2,Cp2Ti(LⅡ)2 .经过元素分析、摩尔电导、核磁共振氢谱与碳谱、红外及紫外光谱等测试, 表明水杨酸、阿斯匹林均与二氯二茂钛形成含Ti-O 键的单齿配位的羧酸二取代二茂钛配合物.
XIEXiao-mei(谢晓梅) +3 more
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Zhejiang Daxue xuebao. Lixue ban, 2004 以四氯化钛(TiCl4)为原料,采用3种不同的沉淀剂制备了纳米二氧化钛粉体.用TG-DTA和FT-IR对前驱体进行了分析.结果表明,不同沉淀剂导致粉体表面状态不同.以乙酸和尿素为沉淀剂的粉体表面不仅沉淀剂可以形成化学吸附,水分子也参与反应并在粉体表面形成-OH基团,而以EDTA为沉淀剂的粉体表面只吸附沉淀剂.煅烧后,用TEM对颗粒形貌进行了表征.实验发现,以EDTA为沉淀剂制备的粉体分散性优于其他沉淀剂制备的二氧化钛颗粒.这些差异主要是由于沉淀剂的性质及其在粉体表面的吸附状态不同.
LIUBo(刘波) +5 more
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Rare Metals, Volume 45, Issue 6, June 2026.ABSTRACT The poor soft tissue integration around titanium implants creates a microgap that serves as a pathway for pathogen invasion, resulting in infection, inflammation, and the progression of peri‐implantitis. As the implant’s transmucosal component, the abutment determines the degree of peri‐implant soft tissue attachment.
Xuan Li +7 more
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Analysis of diphenylsilanediol oligomers by HPLC-MS/MS(二苯基硅二醇低聚物的液相色谱-质谱分析)
Zhejiang Daxue xuebao. Lixue ban, 2014 采用三重串联四级杆液质联用仪(HPLC-MS/MS)对二苯基硅二醇缩合得到的低聚物进行分析，优化了色谱条件，组分分离效果良好.对质谱碎片离子进行解析，产物为二苯基硅二醇、1，1，3，3-四苯基-1，3-二硅氧烷二醇（二聚体）、1，1，3，3，5，5-六苯基-1，5-三硅氧烷二醇（三聚体）、1，1，3，3，5，5，7，7-八苯基-1，7-四硅氧烷二醇（四聚体）的混合物.2种催化条件下得到的产物组分相同，但主成分不同，盐酸催化下主要得到二聚体，钛酸正丁酯催化下主要得到三聚体和四聚体.
NIUGuiying(牛桂英) +3 more
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Rare Metals, Volume 45, Issue 4, April 2026.ABSTRACT Piezocatalytic technology utilizes mechanical strain or stress‐induced piezoelectric phenomena to produce robust internal electric fields, markedly improving the separation efficiency of e−‐h+ pairs. This method has emerged as a focal point in catalysis by removing reliance on conventional light or electrical energy via its mechanical‐to ...
Yue Zhou +5 more
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Rare Metals, Volume 45, Issue 4, April 2026.ABSTRACT By adding CuO, the worm‐like amorphous phase and atomic clusters were simultaneously introduced, enabling the (Ni40Ti40Cu20)99.9O0.1 alloy micron columns to exhibit a uniform flow strain of over 40% and a strength of over 2.5 GPa during compression.
Huwen Ma +13 more
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A Multifunctional Reducing Molecular Dopant for 16% Efficient Tin Perovskite Solar Cells
Rare Metals, Volume 45, Issue 3, March 2026.ABSTRACT Although lead‐based photovoltaics have seen remarkable progress, tin‐based perovskite solar cells (Sn‐PSCs) continue to face challenges due to their limited power conversion efficiency and insufficient operational stability. The primary cause of this performance gap is the susceptibility of Sn2+ to oxidation, which promotes rapid defect ...
Xianyong Zhou +12 more
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Rare Metals, Volume 45, Issue 1, January 2026.ABSTRACT Moist‐electric generators (MEGs) harness energy from ubiquitous ambient humidity, which has emerged as a promising way to collect energy irrespective of location and time. This study presents a high‐performance MEG employing a bilayer Janus nanofiber membrane: a hydrophilic layer (lithium chloride/citric acid/polyvinyl alcohol) for enhanced ...
Peng Chen +7 more
wiley +1 more source
四川大学学报. 自然科学版, 2010 在氢氟酸电解液中采用阳极氧化法在多孔钛片上制备了二氧化钛纳米管束.考察了电压对二氧化钛氧化层形貌及温度对二氧化钛晶型的影响.制备的二氧化钛纳米管形貌,晶型及光催化性能分别采用SEM,XRD和光催化还原Pd2+沉积钯膜实验表征.SEM结果表明,最佳阳极氧化电压为30 V.在此电压下制备的二氧化钛纳米管长约为300 nm,管径约为40nm,壁厚约为20 nm.XRD结果显示,773 K退火后,二氧化钛为锐钛矿型;873 K退火后二氧化钛主要为锐钛矿型,含有2.99%的金红石相;973 ...
赵蓉, 丁冉峰, 蒋炜, 梁斌
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