Simple preparation of nanoporous ITO film with novel sparking method

2021 ◽  
pp. 131591
Author(s):  
Winai Thongpan ◽  
Tewasin Kumpika ◽  
Ekkapong Kantarak ◽  
Wattikon sroila ◽  
Dimitrios Louloudakis ◽  
...  
Keyword(s):  
Ito Film ◽  
Simple Preparation

Scanning electron microscopy of human iliac bone by a simple preparation method

1990 ◽  
Vol 48 (3) ◽  
pp. 226-227
Author(s):  
Toshihiko Takita ◽  
Tomonori Naguro ◽  
Toshio Kameie ◽  
Akihiro Iino ◽  
Kichizo Yamamoto
Keyword(s):  
Electron Microscopy ◽  
Scanning Electron Microscopy ◽  
Preparation Method ◽  
Specimen Preparation ◽  
Real Surface ◽  
Public Attention ◽  
Preparation Methods ◽  
The Real ◽  
Simple Preparation ◽  
Scanning Electron

Recently with the increase in advanced age population, the osteoporosis becomes the object of public attention in the field of orthopedics. The surface topography of the bone by scanning electron microscopy (SEM) is one of the most useful means to study the bone metabolism, that is considered to make clear the mechanism of the osteoporosis. Until today many specimen preparation methods for SEM have been reported. They are roughly classified into two; the anorganic preparation and the simple preparation. The former is suitable for observing mineralization, but has the demerit that the real surface of the bone can not be observed and, moreover, the samples prepared by this method are extremely fragile especially in the case of osteoporosis. On the other hand, the latter has the merit that the real information of the bone surface can be obtained, though it is difficult to recognize the functional situation of the bone.

Simple Preparation of Methyl 4-Chloromethyl- and Methyl 5-Chloromethyl-2-thiophenecarboxylate

1992 ◽  
Vol 57 (7) ◽  
pp. 1483-1486 ◽  
Author(s):  
Václav Kozmík ◽  
Jaroslav Paleček
Keyword(s):  
Selective Reduction ◽  
Sulfuryl Chloride ◽  
Simple Preparation

Selective reduction of a mixture of methyl 4-chloromethyl-2-thiophenecarboxylate (I) and the 5-chloromethyl isomer II, prepared by chloromethylation of methyl 2-thiophenecarboxylate (III), gave pure 4-chloromethyl derivative I and 5-methyl-2-thiophenecarboxylate (V) which on treatment with sulfuryl chloride was converted into the 5-chloromethyl isomer II.

ChemInform Abstract: A SIMPLE PREPARATION OF O-PHOSPHO-L-TYROSINE

1983 ◽  
Vol 14 (21) ◽  
Author(s):  
P. F. ALEWOOD ◽  
R. B. JOHNS ◽  
R. M. VALERIO ◽  
B. E. KEMP
Keyword(s):  
Simple Preparation

scholarly journals Taming nitroformate through encapsulation with nitrogen-rich hydrogen-bonded organic frameworks

2021 ◽  
Vol 12 (1) ◽  
Author(s):  
Jichuan Zhang ◽  
Yongan Feng ◽  
Richard J. Staples ◽  
Jiaheng Zhang ◽  
Jean’ne M. Shreeve
Keyword(s):  
Thermal Stability ◽  
Hydrogen Bonds ◽  
Self Assembly ◽  
Energetic Materials ◽  
Decomposition Temperature ◽  
High Oxygen Content ◽  
The Poor ◽  
Simple Preparation ◽  
First Time ◽  
Hydrogen Bonded

AbstractOwing to its simple preparation and high oxygen content, nitroformate [−C(NO2)3, NF] is an extremely attractive oxidant component for propellants and explosives. However, the poor thermostability of NF-based derivatives has been an unconquerable barrier for more than 150 years, thus hindering its application. In this study, the first example of a nitrogen-rich hydrogen-bonded organic framework (HOF-NF) is designed and constructed through self-assembly in energetic materials, in which NF anions are trapped in pores of the resulting framework via the dual force of ionic and hydrogen bonds from the strengthened framework. These factors lead to the decomposition temperature of the resulting HOF-NF moiety being 200 °C, which exceeds the challenge of thermal stability over 180 °C for the first time among NF-based compounds. A large number of NF-based compounds with high stabilities and excellent properties can be designed and synthesized on the basis of this work.

Self-paired dumbbell DNA -assisted simple preparation of stable circular DNAzyme and its application in Pb2+ sensor

2021 ◽  
pp. 338733
Author(s):  
Hongxin Jiang ◽  
Pingping Ji ◽  
Yaping Xu ◽  
Xiaowei Liu ◽  
Deming Kong
Keyword(s):  
Simple Preparation

Simple preparation of a cadmium selenide–montmorillonite hybrid

2011 ◽  
Vol 357 (2) ◽  
pp. 554-557 ◽  
Author(s):  
Areeporn Ontam ◽  
Nithima Khaorapapong ◽  
Makoto Ogawa
Keyword(s):  
Cadmium Selenide ◽  
Simple Preparation

scholarly journals Porous Copper/Zinc Bimetallic Oxides Derived from MOFs for Efficient Photocatalytic Reduction of CO2 to Methanol

Catalysts ◽  
2020 ◽  
Vol 10 (10) ◽  
pp. 1127
Author(s):  
Zhenyu Wang ◽  
Xiuling Jiao ◽  
Dairong Chen ◽  
Cheng Li ◽  
Minghui Zhang
Keyword(s):  
High Activity ◽  
Oxide Catalyst ◽  
Fast Rate ◽  
Metal Organic Framework ◽  
Photocatalytic Reduction ◽  
Simple Preparation ◽  
Porous Copper ◽  
Metal Organic ◽  
Copper Zinc ◽  
Reduction Of Co2

A novel metal organic framework (MOF)-derived porous copper/zinc bimetallic oxide catalyst was developed for the photoreduction of CO2 to methanol at a very fast rate of 3.71 mmol gcat−1 h−1. This kind of photocatalyst with high activity, selectivity and a simple preparation catalyst provides promising photocatalyst candidates for reducing CO2 to methanol.

scholarly journals Improving Performance of CIGS Solar Cells by Annealing ITO Thin Films Electrodes

2015 ◽  
Vol 2015 ◽  
pp. 1-8 ◽  
Author(s):  
Chuan Lung Chuang ◽  
Ming Wei Chang ◽  
Nien Po Chen ◽  
Chung Chiang Pan ◽  
Chung Ping Liu
Keyword(s):  
Thin Films ◽  
Optical Properties ◽  
Solar Cells ◽  
Indium Tin Oxide ◽  
Copper Indium Gallium Diselenide ◽  
Glass Substrates ◽  
Ito Film ◽  
Ito Thin Films ◽  
Cigs Solar Cells ◽  
Ito Films

Indium tin oxide (ITO) thin films were grown on glass substrates by direct current (DC) reactive magnetron sputtering at room temperature. Annealing at the optimal temperature can considerably improve the composition, structure, optical properties, and electrical properties of the ITO film. An ITO sample with a favorable crystalline structure was obtained by annealing in fixed oxygen/argon ratio of 0.03 at 400°C for 30 min. The carrier concentration, mobility, resistivity, band gap, transmission in the visible-light region, and transmission in the near-IR regions of the ITO sample were-1.6E+20 cm−3,2.7E+01 cm2/Vs,1.4E-03 Ohm-cm, 3.2 eV, 89.1%, and 94.7%, respectively. Thus, annealing improved the average transmissions (400–1200 nm) of the ITO film by 16.36%. Moreover, annealing a copper-indium-gallium-diselenide (CIGS) solar cell at 400°C for 30 min in air improved its efficiency by 18.75%. The characteristics of annealing ITO films importantly affect the structural, morphological, electrical, and optical properties of ITO films that are used in solar cells.

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