scholarly journals Rapid transformation of heterocyclic building blocks into nanoporous carbons for high-performance supercapacitors

RSC Advances ◽  
2018 ◽  
Vol 8 (22) ◽  
pp. 12300-12309 ◽  
Author(s):  
Babak Ashourirad ◽  
Muslum Demir ◽  
Ryon A. Smith ◽  
Ram B. Gupta ◽  
Hani M. El-Kaderi
Keyword(s):  
Zinc Chloride ◽  
High Performance ◽  
Chemical Properties ◽  
Building Blocks ◽  
Nanoporous Carbons ◽  
Stable Performance ◽  
Supercapacitor Applications ◽  
Rapid Transformation ◽  
And Chemical Properties

Zinc chloride activated benzimidazole derived carbons (ZBIDCs) with optimal textural and chemical properties exhibit remarkable and stable performance in supercapacitor applications.

Review of Fabrication Methods of Nanotube / Nanowire Devices

2011 ◽  
Vol 411 ◽  
pp. 427-431 ◽  
Author(s):  
Miao Miao Tan ◽  
Zi Yi Zhang ◽  
Lin Hui Zhao ◽  
Jian Cheng Zhang
Keyword(s):  
Carbon Nanotube ◽  
High Performance ◽  
Chemical Properties ◽  
Research Field ◽  
Nano Materials ◽  
One Dimensional ◽  
Nano Fabrication ◽  
Nano Structures ◽  
Manufacturing Methods ◽  
And Chemical Properties

With the development of nano materials, a novel research field of NEMS forms by combining nano materials, nano-structures and nano fabrication with MEMS. Carbon nanotube (CNT) is a kind of one-dimensional nano structures which has unique mechanical, electrical and chemical properties. Using CNTs, new nano-devices with new principle or high performance would be developed. This paper reviews the assembly methods of one dimensional nanostructure and analyzes the characteristics of various methods, which provides reference for the device manufacturing methods using nanotubes/nanowires.

Review of fundamentals and applications of polyester nanocomposites filled with carbonaceous nanofillers

2018 ◽  
Vol 35 (1) ◽  
pp. 22-44 ◽  
Author(s):  
Ayesha Kausar
Keyword(s):  
High Performance ◽  
State Of The Art ◽  
Technological Development ◽  
Chemical Properties ◽  
Scientific Development ◽  
Polyester Resins ◽  
Aliphatic Polyesters ◽  
Environmental Features ◽  
Aromatic Polyester ◽  
And Chemical Properties

Polyester is a versatile commercially significant polymer (thermoplastic/thermoset) well-known for its biodegradability and excellent thermal, mechanical, and chemical properties. Synthetic aromatic polyester resins usually have better moisture resistance, nonflammability, liquid crystal, strength, thermal, and environmental features compared with natural/aliphatic polyesters. Nanofillers can reinforce these important polymers to further enhance the final nanocomposite structural and physical characteristics. This review presents research devoted to polyester nanocomposites with essential nanofillers such as; nanodiamond, fullerene, carbon nanotube, graphene, and graphene oxide. High-performance polyester/nanocomposites have been developed based on modified polyester design, nanofiller functionality, and optimized interaction between matrix and nanofiller. This article also presents state-of-the-art technological development in the field of polyester/nanocomposites predominantly in supercapacitors, fuel cells, shape memory materials, electromagnetic shielding materials, textiles, and biomedical appliances. Furthermore, future scenarios in scientific development of these nanocomposites are discussed.

scholarly journals Recent advances in graphene-based materials for dye-sensitized solar cell fabrication

RSC Advances ◽  
2020 ◽  
Vol 10 (72) ◽  
pp. 44453-44469
Author(s):  
Edigar Muchuweni ◽  
Bice S. Martincigh ◽  
Vincent O. Nyamori
Keyword(s):  
Solar Cell ◽  
High Performance ◽  
Chemical Properties ◽  
Dye Sensitized Solar Cell ◽  
Counter Electrodes ◽  
Dye Sensitized ◽  
Recent Advances ◽  
Solar Cell Fabrication ◽  
Cell Fabrication ◽  
And Chemical Properties

Graphene-based materials can produce high performance and sustainable DSSCs, through tuning of their excellent optoelectronic, mechanical, thermal and chemical properties for use as photoanodes, photosensitizers, electrolytes and counter electrodes.

Effect of Doping of Fe into TiO2 Layer in Fe2O3/TiO2/FTO System for High Performance of Water Splitting

2014 ◽  
Vol 93 ◽  
pp. 82-89 ◽  
Author(s):  
Aryan Azad ◽  
Eul Noh ◽  
Kang Seop Yun ◽  
Hee June Jeong ◽  
Sang Chul Jung ◽  
...  
Keyword(s):  
Metal Oxides ◽  
Water Splitting ◽  
High Performance ◽  
Chemical Properties ◽  
Layer By Layer ◽  
Energy Problem ◽  
Dipping Process ◽  
Promising Solution ◽  
Physical And Chemical ◽  
And Chemical Properties

Hydrogen has unique physical and chemical properties which present benefits and challenges to its successful widespread adoption as a fuel. The photoelectrochemical (PEC) water splitting process with semiconductor metal oxides can be a promising solution to the global energy problem. Although amongst metal oxides Fe2O3 by 2.2 eV bang gap energy is more applicable, for reducing the recombination of electron and hole, Fe was doped into TiO2. In this study Fe2O3/Fe doped TiO2 photocatalysts were compared with Fe-doped TiO2 and TiO2 structures by using layer by layer-self-assemble (LBL-SA) method and dipping process on FTO glass. According to our results the Fe2O3 coated on Fe doped TiO2 /FTO has had best results.

scholarly journals Effects of shoot age on biological and chemical properties of red currant (Ribes rubrum L.) cultivars

2020 ◽  
Vol 0 (0) ◽  
Author(s):  
Boban S. Djordjevic ◽  
Dejan B. Djurovic ◽  
Gordan D. Zec ◽  
Mekjell O. Meland ◽  
Milica M. Fotiric Aksic
Keyword(s):  
High Performance ◽  
Sugar Content ◽  
Chemical Properties ◽  
Principal Component ◽  
Soluble Solids ◽  
Phenological Data ◽  
Acid Ratio ◽  
Total Anthocyanins ◽  
Red Currant ◽  
And Chemical Properties

AbstractThe aim of this study was to examine the influence of shoot age on biological and chemical properties of 11 red currant cultivars (‘Jonkheer van Tets’, ‘Junifer’, ‘London Market’, ‘Makosta’, ‘Mirana’, ‘Redpoll’, ‘Rolan’, ‘Rondom’, ‘Rovada’, ‘Slovakia’ and ‘Stanza’) with different origins and ripening times. Phenological observations and pomological characteristics were studied and chemical analysis was conducted from 2013 to 2018 at experimental fields near Belgrade, Serbia. The total contents of phenols and anthocyanin were estimated spectrophotometrically, while quantitative analysis of anthocyanin aglycones was done using high-performance liquid chromatography. Three-year-old shoots had an earlier start of all examined phenological stages, better generative potential, higher yields, as well as higher total phenol and vitamin C contents in the fruits, compared with 2-year-old shoots, for all cultivars. The contents of total anthocyanins were higher in berries on younger shoots of early-ripening cultivars, while late-ripening cultivars had higher contents of total soluble solids and cyanidin in the berries on 3-year-old shoots. Principal component analysis demonstrated that the most important variables that distinguished 2-year-old shoots from 3-year-old shoots were those related to phenological data, cluster traits, total acids and yields. According to the obtained results, ‘Junifer’ (with the highest number of clusters), ‘Mirana’ (with the highest sugar content and sugar/acid ratio), ‘Redpoll’ (with the highest physical traits of cluster and berry), ‘Slovakia’ (with the highest yield and yield efficiency) and ‘Rovada’ (with the highest level of secondary metabolites) are recommended as the most promising cultivars for growing in the temperate region of Serbia.

scholarly journals Polyfluoroalkylated 2-ethoxymethylene- 3-oxo esters: synthesis and chemical properties overview

2017 ◽  
Vol 89 (8) ◽  
pp. 1209-1222 ◽  
Author(s):  
Victor I. Saloutin ◽  
Yulia S. Kudyakova ◽  
Marina V. Goryaeva ◽  
Yanina V. Burgart ◽  
Oleg N. Chupakhin
Keyword(s):  
Metal Complexes ◽  
Organic Synthesis ◽  
Bioactive Compounds ◽  
Chemical Properties ◽  
Building Blocks ◽  
High Reactivity ◽  
Organic Reagents ◽  
Fine Organic Synthesis ◽  
Fine Organic ◽  
And Chemical Properties

AbstractThe review focuses on the synthesis and chemical properties of polyfluoroalkylated 2-ethoxymethylene-3-oxo esters. The scope and peculiarities of their use as organic reagents in reactions with various N-, C-, O-, mono- and dinucleophiles are discussed in detail. The high reactivity of such derivatives is employed in the construction of enaminoketone, arene and heterocycle frameworks. Particular attention is paid to applications of these building blocks as chemicals for fine organic synthesis, bioactive compounds and metal complexes synthesis.

High performance graphene embedded rubber composites

RSC Advances ◽  
2015 ◽  
Vol 5 (99) ◽  
pp. 81707-81712 ◽  
Author(s):  
Sung Ho Song ◽  
Jung Mo Kim ◽  
Kwang Hyun Park ◽  
Dong Ju Lee ◽  
O.-Seok Kwon ◽  
...  
Keyword(s):  
High Performance ◽  
Chemical Properties ◽  
Physical And Chemical Properties ◽  
Rubber Composites ◽  
Synergy Effects ◽  
Physical And Chemical ◽  
And Chemical Properties

Nano-fillers have provided a big advantage for enhancing the performance of rubber composites through leading the synergy effects in the physical and chemical properties.

Metal Organic Framework Derived Porous Carbon Materials Excels as an Excellent Platform for High-performance Packaged Supercapacitors

Nanoscale ◽  
2021 ◽  
Author(s):  
Xianyu Chu ◽  
Fanling Meng ◽  
Ting Deng ◽  
Wei Zhang
Keyword(s):  
Porous Carbon ◽  
High Performance ◽  
Metal Organic Framework ◽  
Chemical Properties ◽  
Porous Carbon Material ◽  
Metal Organic ◽  
Key Steps ◽  
Physical And Chemical ◽  
And Chemical Properties ◽  
Organic Framework

Designing and synthesizing new materials with special physical and chemical properties are the key steps to assembling high performance supercapacitors. Metal organic framework (MOF) derived porous carbon material has drawn...

scholarly journals Research of the physical and chemical properties and methods of Red rice (food colour) determination in sausage products

2020 ◽  
Vol 5 (4) ◽  
pp. 23-28
Author(s):  
N. V. Rudometova ◽  
I. S. Kim
Keyword(s):  
Liquid Chromatography ◽  
High Performance ◽  
Chemical Properties ◽  
Carminic Acid ◽  
Physical And Chemical Properties ◽  
Red Rice ◽  
Chromatography Method ◽  
Food Colour ◽  
Physical And Chemical ◽  
And Chemical Properties

In Russia, in the production of meat and sausage products, the food colour, named as Red rice, is use. Red rice is obtain by the cultivation the strains of the Monascus fungus on various carbohydrate substrates, for example rice. That Red rice may contain the mycotoxin citrinin, but neither the purity of the food colour nor the safety profile are regulated. The aim of this work was to study the physical and chemical properties of Red rice and to develop method for its determination in sausage products. The experiments were carried out on model and commercial samples of sausages. The samples were analyzed using spectrophotometry and highefficiency planar and liquid chromatography. Spectrophotometric analysis revealed differences in solubility, coloring power, spectral characteristics, composition and ratio of pigments in commercial samples of Red rice. The extraction parameters of colouring substances from sausages model samples were determined. It has been established that Red rice is extracted with chloroform, acetone, ethanol and its aqueous solutions. Petroleum ether was proposed for degreasing sausages. Red rice from sausages was extracted with acetone because it did not extract synthetic colours and carminic acid. It was found, that 90% of Red rice is extracted from samples of sausages by double extraction with ultrasonic treatment with a power of 128 W. High performance thin layer chromatography method and high performance liquid chromatography method for the Red rice identification was proposed. The content of Red rice in the extracts was determined by spectrophotometric method. The developed method for the determination of Red rice was tested on commercial samples of sausage products.

scholarly journals Wafer-scale two-dimensional platinum monosulfide ultrathin film via metal sulfurization for high performance photoelectronics

2022 ◽  
Author(s):  
Jinbo Pang ◽  
Yanhao Wang ◽  
Xiaoxin Yang ◽  
Lei Zhang ◽  
Yufen Li ◽  
...  
Keyword(s):  
High Performance ◽  
Chemical Properties ◽  
Ultrathin Film ◽  
Physical And Chemical Properties ◽  
Two Dimensional ◽  
Wafer Scale ◽  
Platinum Group Minerals ◽  
Platinum Group ◽  
Physical And Chemical ◽  
And Chemical Properties

2D nonlayered materials have attracted enormous research interests due to their novel physical and chemical properties with the confined dimensions. Platinum sulfide as one of the most common platinum-group minerals...

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