scholarly journals Developing Low-Cost, High Performance, Robust and Sustainable Perovskite Electrocatalytic Materials in the Electrochemical Sensors and Energy Sectors: “An Overview”

Catalysts ◽  
2020 ◽  
Vol 10 (8) ◽  
pp. 938
Author(s):  
Tse-Wei Chen ◽  
Rasu Ramachandran ◽  
Shen-Ming Chen ◽  
Narayanasamy Kavitha ◽  
Kannaiyan Dinakaran ◽  
...  
Keyword(s):  
Material Science ◽  
High Performance ◽  
Recent Progress ◽  
Electrochemical Sensors ◽  
Low Cost ◽  
Composite Nanomaterials ◽  
Perovskite Materials ◽  
Physical Chemical ◽  
Low Dimensional ◽  
Supercapacitor Applications

Since its discovery in 1839, research on the synthesis and application of perovskite materials has multiplied largely due to their suitability to be used in the fields of nanotechnology, chemistry and material science. Appropriate changes in composition or addition of other elements or blending with polymers may result in new hybrid and/or composite perovskite materials that will be applied in advanced fields. In this review, we have recapitulated the recent progress on perovskite nanomaterial in solar cell, battery, fuel cell and supercapacitor applications, and the prominence properties of perovskite materials, such as excellent electronic, physical, chemical and optical properties. We discussed in detail the synthesis and results of various perovskite hybrid nanomaterials published elsewhere. We have also discussed the results of various studies on these low dimensional composite nanomaterials in broad sectors such as electronics/optoelectronics, batteries, supercapacitors, solar cells and electrochemical sensors.

scholarly journals Carbon nanomaterial hybrids via laser writing for high-performance non-enzymatic electrochemical sensors: a critical review

2021 ◽  
Author(s):  
Marcel Simsek ◽  
Nongnoot Wongkaew
Keyword(s):  
Noble Metal ◽  
Critical Review ◽  
High Performance ◽  
Carbon Nanomaterials ◽  
Electrochemical Sensors ◽  
Low Cost ◽  
Three Dimensional ◽  
Laser Writing ◽  
Enzyme Mimicking ◽  
Natural Enzyme

AbstractNon-enzymatic electrochemical sensors possess superior stability and affordability in comparison to natural enzyme-based counterparts. A large variety of nanomaterials have been introduced as enzyme mimicking with appreciable sensitivity and detection limit for various analytes of which glucose and H2O2 have been mostly investigated. The nanomaterials made from noble metal, non-noble metal, and metal composites, as well as carbon and their derivatives in various architectures, have been extensively proposed over the past years. Three-dimensional (3D) transducers especially realized from the hybrids of carbon nanomaterials either with metal-based nanocatalysts or heteroatom dopants are favorable owing to low cost, good electrical conductivity, and stability. In this critical review, we evaluate the current strategies to create such nanomaterials to serve as non-enzymatic transducers. Laser writing has emerged as a powerful tool for the next generation of devices owing to their low cost and resultant remarkable performance that are highly attractive to non-enzymatic transducers. So far, only few works have been reported, but in the coming years, more and more research on this topic is foreseeable. Graphical abstract

scholarly journals Electrochemical Sensors and Biosensors for the Analysis of Tea Components: A Bibliometric Review

2022 ◽  
Vol 9 ◽  
Author(s):  
Jinhua Shao ◽  
Chao Wang ◽  
Yiling Shen ◽  
Jinlei Shi ◽  
Dongqing Ding
Keyword(s):  
Bibliometric Analysis ◽  
High Performance ◽  
Electrochemical Sensors ◽  
Materials Science ◽  
Low Cost ◽  
Relevant Literature ◽  
Electrochemical Techniques ◽  
High Sensitivity ◽  
Electrochemical Analysis ◽  
Electrochemical Biosensing

Tea is a popular beverage all around the world. Tea composition, quality monitoring, and tea identification have all been the subject of extensive research due to concerns about the nutritional value and safety of tea intake. In the last 2 decades, research into tea employing electrochemical biosensing technologies has received a lot of interest. Despite the fact that electrochemical biosensing is not yet the most widely utilized approach for tea analysis, it has emerged as a promising technology due to its high sensitivity, speed, and low cost. Through bibliometric analysis, we give a systematic survey of the literature on electrochemical analysis of tea from 1994 to 2021 in this study. Electrochemical analysis in the study of tea can be split into three distinct stages, according to the bibliometric analysis. After chromatographic separation of materials, electrochemical techniques were initially used only as a detection tool. Many key components of tea, including as tea polyphenols, gallic acid, caffeic acid, and others, have electrochemical activity, and their electrochemical behavior is being investigated. High-performance electrochemical sensors have steadily become a hot research issue as materials science, particularly nanomaterials, and has progressed. This review not only highlights these processes, but also analyzes and contrasts the relevant literature. This evaluation also provides future views in this area based on the bibliometric findings.

scholarly journals Hierarchical modelling for recycling-oriented classification of shredded spent flat monitor products based on HyperSpectral Imaging

Detritus ◽  
2020 ◽  
pp. 122-130
Author(s):  
Giuseppe Bonifazi ◽  
Riccardo Gasbarrone ◽  
Roberta Palmieri ◽  
Silvia Serranti
Keyword(s):  
Hyperspectral Imaging ◽  
High Performance ◽  
Near Infrared ◽  
Low Cost ◽  
Volume Growth ◽  
Growth Trend ◽  
Hierarchical Modelling ◽  
Physical Chemical ◽  
Chemical Attributes ◽  
Set Up

The number of flat monitors from televisions, notebooks and tablets has increased dramatically in recent years, thus resulting in a corresponding rise in Waste from Electrical and Electronic Equipment (WEEE). This fact is linked to the production of new high-performance electronic devices. Taking into account a future volume growth trend of WEEE, the implementation of adequate recycling architectures embedding recognition/classification logics to handle the collected WEEE physical-chemical attributes, is thus necessary. These integrated hardware and software architectures should be efficient, reliable, low cost, and capable of performing detection/control actions to assess: i) WEEE composition and ii) physical-chemical attributes of the resulting recovered flow streams. This information is fundamental in setting up and implementing appropriate recycling actions. In this study, a hierarchical classification modelling approach, based on Near InfraRed (NIR) - Hyperspectral Imaging (HSI), was carried out. More in detail, a 3-step hierarchical modelling procedure was designed, implemented and set up in order to recognize different materials present in a specific WEEE stream: End-of-Life (EoL) shredded monitors and flat screens. By adopting the proposed approach, different categories are correctly recognized. The results obtained showed how the proposed approach not only allows the set up of a “one shot” quality control system, but also contributes towards improving the sorting process.

High-performance, ultra-flexible and transparent embedded metallic mesh electrodes by selective electrodeposition for all-solid-state supercapacitor applications

2017 ◽  
Vol 5 (19) ◽  
pp. 9032-9041 ◽  
Author(s):  
Yan-Hua Liu ◽  
Jian-Long Xu ◽  
Su Shen ◽  
Xin-Lei Cai ◽  
Lin-Sen Chen ◽  
...  
Keyword(s):  
Solid State ◽  
High Performance ◽  
Low Cost ◽  
Processing Methods ◽  
Electrodeposition Process ◽  
Metallic Mesh ◽  
Film Processing ◽  
First Time ◽  
Supercapacitor Applications

High-performance, ultra-flexible and transparent embedded metallic mesh electrodes were fabricatedvialow-cost selective electrodeposition process combined with inverted film-processing methods for the first time. Flexible and transparent all-solid-state supercapacitors were thus successfully constructed.

Green synthesis of nanoparticles: current prospectus

2015 ◽  
Vol 4 (4) ◽  
Author(s):  
Tejaswi Thunugunta ◽  
Anand C. Reddy ◽  
Lakshmana Reddy D.C.
Keyword(s):  
Green Synthesis ◽  
Material Science ◽  
Low Cost ◽  
Nanoparticle Synthesis ◽  
Biological Synthesis ◽  
Synthesis Of Nanoparticles ◽  
The Past ◽  
Environmental Friendly ◽  
Physical Chemical ◽  
Biological Methods

AbstractIn the past few years, nanoparticles have been applied in various fields of science and technology, ranging from material science to biotechnology. Thus, the synthesis of nanoparticles can be considered as a dynamic area in research and application of nanoparticles. The different methods of nanoparticle synthesis include physical, chemical, and biological methods. Of these methods, the biological synthesis is to be comparatively widely used due to its advantages of being low cost, nontoxic and environmental friendly. Bio-applications of nanoparticles have pawed way for green synthesis of nanoparticles. In this review, we have provided brief information on various biological agents used for the synthesis of nanoparticles.

scholarly journals Recent progress in perovskite solar cells: the perovskite layer

2020 ◽  
Vol 11 ◽  
pp. 51-60 ◽  
Author(s):  
Xianfeng Dai ◽  
Ke Xu ◽  
Fanan Wei
Keyword(s):  
Solar Cells ◽  
High Speed ◽  
Large Scale ◽  
Recent Progress ◽  
High Efficiency ◽  
Low Cost ◽  
Perovskite Solar Cells ◽  
Perovskite Layer ◽  
Low Dimensional

Perovskite solar cells (PSCs) are set to be game changing components in next-generation photovoltaic technology due to their high efficiency and low cost. In this article, recent progress in the development of perovskite layers, which are the basis of PSCs, is reviewed. Achievements in the fabrication of high-quality perovskite films by various methods and techniques are introduced. The reported works demonstrate that the power conversion efficiency of the perovskite layers depends largely on their morphology and the crystalline quality. Furthermore, recent achievements concerning the scalability of perovskite films are presented. These developments aim at manufacturing large-scale perovskite solar modules at high speed. Moreover, it is shown that the development of low-dimensional perovskites plays an important role in improving the long-term ambient stability of PSCs. Finally, these latest advancements can enhance the competitiveness of PSCs in photovoltaics, paving the way for their commercialization. In the closing section of this review, some future critical challenges are outlined, and the prospect of commercialization of PSCs is presented.

scholarly journals High-Performance Electrically-transduced Hazardous Gas Sensors based on Low-dimensional Nanomaterials

2021 ◽  
Author(s):  
Xiaolin Kang ◽  
SenPo Yip ◽  
You Meng ◽  
Wei Wang ◽  
Dengji Li ◽  
...  
Keyword(s):  
Gas Sensors ◽  
High Performance ◽  
Gas Sensing ◽  
Physical Chemical ◽  
Low Dimensional ◽  
Hazardous Gas

Low-dimensional nanomaterials have been proven as promising high-performance gas sensing components due to their fascinating structural, physical, chemical, and electronic characteristics. In particular, materials in low dimensionalities (i.e., 0D, 1D,...

Combustion Synthesis of Graphene from Waste Paper for High Performance Supercapacitor Electrodes

2017 ◽  
Vol 17 (01n02) ◽  
pp. 1760023 ◽  
Author(s):  
Dayakar Chowdary Singu ◽  
B. Joseph ◽  
V. Velmurugan ◽  
Syamsai Ravuri ◽  
A. Nirmala Grace
Keyword(s):  
High Performance ◽  
Low Cost ◽  
Cost Effective ◽  
X Ray Diffraction ◽  
X Ray ◽  
Electrochemical Supercapacitor ◽  
Cost Effective Method ◽  
Discharge Duration ◽  
Graphene Paper ◽  
Supercapacitor Applications

Incessant streak of unsuccessful attempts to synthesize low cost graphene with larger flake size and purity is frequently reported. Any reported methods that result in few layers of graphene with minimal contamination are definitive to exist. In this work, graphene was prepared economically from source of “paper” and detailed investigation was done on the effect of synthesizing parameters like paper source, temperature and amount of urea in the formation of graphene. This is a cost effective method, in which the paper that we use in our daily life was carbonized with the help of urea at a temperature of 850[Formula: see text]C under N2 atmosphere. The paper source was varied, shape of the paper was altered and the graphene paper with large surface area was synthesized without smudging and the prepared graphene paper was analyzed by X-ray diffraction (XRD), Scanning Electron Microscopy (SEM) for its structural, morphological investigation. To test the supercapacitance performance, electrochemical behavior was investigated in 6[Formula: see text]M KOH electrolyte. The specific capacitance of 1122[Formula: see text]F/g was obtained at 5[Formula: see text]mV/s scan rate. Chronopotentiometry curves showed an excellent cyclic stability with higher charge/discharge duration and hence could be used for electrochemical supercapacitor applications.

scholarly journals The Low-Dimensional Three-Dimensional Tin Halide Perovskite: Film Characterization and Device Performance

Energies ◽  
2019 ◽  
Vol 13 (1) ◽  
pp. 2 ◽  
Author(s):  
Cuili Gai ◽  
Jigang Wang ◽  
Yongsheng Wang ◽  
Junming Li
Keyword(s):  
Solar Cells ◽  
High Performance ◽  
3D Structure ◽  
Perovskite Solar Cells ◽  
Three Dimensional ◽  
Physical Parameters ◽  
Perovskite Materials ◽  
Key Points ◽  
Halide Perovskite ◽  
Low Dimensional

Halide perovskite solar cells (PSCs) are considered as one of the most promising candidates for the next generation solar cells as their power conversion efficiency (PCE) has rapidly increased up to 25.2%. However, the most efficient halide perovskite materials all contain toxic lead. Replacing the lead cation with environmentally friendly tin (Sn) is proposed as an important alternative. Today, the inferior performance of Sn-based PSCs mainly due to two challenging issues, namely the facile oxidation of Sn2+ to Sn4+ and the low formation energies of Sn vacancies. Two-dimensional (2D) halide perovskite, in which the large sized organic cations confine the corner sharing BX6 octahedra, exhibits higher formation energy than that of three-dimensional (3D) structure halide perovskite. The approach of mixing a small amount of 2D into 3D Sn-based perovskites was demonstrated as an efficient method to produce high performance perovskite films. In this review, we first provide an overview of key points for making high performance PSCs. Then we give an introduction to the physical parameters of 3D ASnX3 (MA+, FA+, and Cs+) perovskite and a photovoltaic device based on them, followed by an overview of 2D/3D halide perovskites based on ASnX3 (MA+ and FA+) and their optoelectronic applications. The current challenges and a future outlook of Sn-based PSCs are discussed in the end. This review will give readers a better understanding of the 2D/3D Sn-based PSCs.

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