Materials Literature
按标题、摘要、年份、主题和来源检索公开元数据。结果保留作者、摘要、分类与原始来源链接。
【緒言】 水酸化ニッケル(Ni(OH)2)は、二次電池の電極材料やキャパシタ材などに用いられている。その 結晶構造には、β相(JCPDS file No: 14-117;a =0.313 nm, c = 0.463 nm)以外に、構造中に水が入り込 むことで c軸方向の層間距離が広がった α相(JCPDS file No: 22-444;a =0.534 nm, c = 0.750 nm)の 2 種類がある。Ni(OH)2の合成方法としては、塩基性溶液中でニッケル塩を反応させる方法が一般的 であるが、オートクレーブを用いたり、溶媒や原料のニッケル化合物の種類を変えることでナノ シート状の Ni(OH)2を合成することも可能である。…
Flexible electrodes made of conjugate polymers are used for whole plastic MEMS & bio-electrochemical sensors. In this paper we report on novel electrode made of made of gold nanoparticle on polypyrrole. Electrodepositing gold on polypyrrole was successful, while similar attempt to deposit gold on polyaniline failed. O…
g-戊内酯广泛应用于食品添加剂、燃料添加剂、溶剂、汽油、柴油以及多种化工中间体的合成,由于其上游原料乙酰丙酸是重要的生物质基平台化合物已实现了工业化生产,因此发展其高效、可循环使用的催化合成新体系是近年来生物质催化转化的研究热点之一.目前使用的多相催化剂体系主要是浸渍法制备的负载型金属纳米颗粒催化剂,活性金属主要有Ru,Pd,Pt,Au,Cu,Ni等.由于乙酰丙酸制备g-戊内酯反应是一个酸性的含水体系,在高温、高压条件下,使用浸渍法得到的催化剂特别是非贵金属催化剂容易发生活性金属的聚集、流失,从而使得催化剂重复使用的效果不佳.从非贵金属替代贵金属和提高催化剂稳定性这两点入手,本论文以水滑石为合成催化剂的单一前驱体,将非贵金属(Cu…
Вивчена динаміка стану шийки матки при багатоплідній та одноплідній вагітності з використанням трансвагінальної ехографії. Виявлена відмінна особливість стану шийки матки при двійні, що полягає у більш швидкому скороченні шийки після 24 тижнів порівняно з одноплідною вагітністю. Розроблені ультразвукові критерії довжи…
The main aim of this work is the development and optimization of an electrochemical printed sensor, without or with modification, to detect hydrogen peroxide and ethanol. Electrochemical sensors are known for their high sensitivity and selectivity for different analytes and they don’t necessarily need high volume samp…
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À Profa.Dra.Debora Gonçalves por me aceitar orientar, proporcionar os estudos com madeiras e por todo apoio.A CAPES pelo suporte financeiro e a CNPq e Fapesp pelos equipamentos fundamentais para a realização deste trabalho.À Analine por não medir esforços em ajudar quando precisei, além de todas as discussões sobre tr…
采用厌氧/生物脱氮/MBR/NF/RO工艺处理含高浓度难降解有机物的垃圾渗滤液。运行结果表明, 该工艺对渗滤液的CODCr、BOD5、NH4+-N、TN的去除率均超过99%, 出水CODCr≤60 mg/L, BOD5≤20 mg/L, NH4+-N≤8 mg/L, TN≤20 mg/L, 达到《生活垃圾填埋场污染物控制标准》(GB 16889—2008)。
The analysis of the properties of rare-earth based materials relies on the Crystalline Electric Field theory. This theory has to be reconsidered in case of cage-type compounds, where the rare-earth ion can substantially depart from its, high symmetry, average position. It is shown that, in case of an orbital degenerac…
This project investigates the photo sensitive characteristics of Cu 2 O-ZnO interface from painted cuprous oxide on copper.Existing methods of producing Cu 2 O-ZnO photosensitive layers are complex, costly and require high temperature conditions.The paintable medium developed in our approach was a simple mixture of cu…
We present Langevin dynamics simulations that study the collective behavior of driven particles embedded in a densely packed background consisting of passive particles. Depending on the driving force, the densities of driven and passive particles, and the temperature we observe a dynamical phase separation of the driv…
Thiolate monolayer-protected gold clusters (AuMPCs) are being used in various biological and biomedical applications due to their unique physical and chemical properties. The fact that gold-sulphur bonds are very stable enables the binding of biomolecules in the surface of gold clusters through a cysteine, an amino ac…
Materials derired from chicken feathers could be used advantageously in composite building material apptications. Such applications could potentially consume the five billion pounds of feathers produced annually as a by-product of the U.E. poultry industry. This study deals with the preparation and characterization of…
Le sujet de these concerne l’analyse et la prediction de la corrosion des renforts metalliques exposes dans des environnements representatifs. Dans cette etude, le systeme va se complexifier en commencant a partir du renfort metallique delaitonne (acier perlitique) en passant par le renfort metallique laitonne (couche…
The open book depicts the transition from one page to the next, reflecting how research in the area of energetic materials can be facilitated by new co-crystal technology. The first page describes the status of ethylenedinitramine (energetic compound of interest in this project) before it undergoes the process of co-c…
Eine Serie von Schmetterlingskomplexen, die kontrollierte photoinduzierte Strukturänderungen (PSC) eingehen und eine justierbare duale Emission zeigen, wird von B. Ma, C. Huang et al. in ihrer Zuschrift auf S. 9727 ff. beschrieben. Die PSC-Prozesse und die duale Emission können durch molekulares Engineering der Potent…
Resumen La formacion de acido clorhidrico en las unidades aguas arriba de las torres de destilacion atmosferica, producto de la hidrolisis de sales inorganicas tales como cloruro de magnesio (MgCl 2) y cloruro de calcio (CaCl 2) principalmente, ha representado un gran problema de corrosion en esta seccion para la indu…
Pristine and rare-earth doped MgO and BaAl2Si2O8 nanopowder samples were studied by means of photoluminescence spectroscopy. The 350-550 nm luminescence of MgO undoped samples is attributed mainly to defects of the crystal structure, such as anion vacancies, while the 550-900 nm emission is owing to metal ion impuriti…
\n Os biossurfatantes (BS) são produtos de origem microbiana com propriedades tensoativas e emulsificantes. Estes compostos são candidatos para substituir os surfatantes sintéticos em aplicações industriais devido à sua menor toxicidade, maior biodegradabilidade, maior diversidade química e maior eficiência e efetivid…
Las reacciones multifasicas tienen lugar entre reactivos presentes en distintas fases, como consecuencia la velocidad global depende de la cinetica de la reaccion y de la transferencia de materia entre fases. En los reactores de lecho fijo de goteo, el relleno proporciona una superficie de contacto entre fases adecuad…