Electrodes

In this work, the electrochemical behavior of lead has been investigated with sensitive, fast and simple different pulse anodic stripping voltammetry (DPASV) method. This preliminary work is an initial step toward the fabricating one type of electrochemical sensors used for sensitive determination of Pb (II) at trace concentration.

8p viyoko 01-10-2024 4 1   Download

Reduced graphene oxide (Gr) has been synthesized electrochemically on the surface of copper metal at a fixed potential of 1.5 V versus a standard saturated calomel electrode (SCE). The synthesized Gr was then characterized with X-Ray diffraction, thermogravimetric analysis, raman and Fourier transform infrared (FT-IR) spectroscopies.

6p vikwong 29-09-2024 3 1   Download

Graphene-based electrode materials exhibit a high specific capacitance and long charge-discharge cycling life, but the material cost remains high because of the complexity of the graphene manufacturing process. This study employed an electrochemical exfoliation method to prepare graphene in a simple and ecologically friendly procedure. According to research findings, the disordered multi-layer structure of graphene exhibited great purity, porosity, and graphitization.

6p vikwong 29-09-2024 3 1   Download

In the present study, we have made an attempt to prepare complexed PVA-PVP-KNO3-BaTiO3 blend composite polymer electrolyte membranes composed of potassium nitrate (KNO3) as salt and BaTiO3 of various concentrations as filler and studied their properties. The advantages of addition the fillers are the increase in ionic conductivity at room temperatures and the improvement of the stability at the interface with electrodes.

12p dianmotminh02 03-05-2024 11 2   Download

The specific objectives of this study are: 1. To conduct a literature review on carbon-based hydrogen storage electrodes and direct proton absorbance in various forms of carbon; 2. To prepare and characterise activated carbon samples with proper porosity for the present application; 3. To manufacture and characterise a range of composite materials containing carbon material and a proton-conducting medium such as nafion in various levels of hydration 4. To fabricate a number of membrane-electrode-assembly (MEA) from the composite materials;…

264p runthenight05 01-03-2023 6 3   Download

The overall aim of this research project is thus to study the concept of integrating a solid-state metal hydride electrode and a unitised regenerative fuel cell into a single system, and investigate its performance as a reversible store for electrical energy.

148p runthenight07 01-03-2023 11 3   Download

The aim of the work "Activated carbon derived from rice husk by NaOH activation and its application in supercapacitor" is to prepare a low-cost, high specific surface area activated carbon with microporous and mesoporous ranges using rice husk as the raw material. The effects of activation temperature on the specific surface area, pore structure, morphology and thermal stability of the AC samples have been examined. The AC samples were proved to be excellent electrode material for supercapacitor, hence solve the disposal and pollution problems of rice husk.

9p runordie3 27-06-2022 12 3   Download

Research objectives of the thesis: The thesis was conducted to research and develop a new type of electrode: glass charcoal electrodes modified by flower platinum nano (PtNFs/GC) and to evaluate the properties of fabricated electrodes: electrode structure, morphology, physical and chemical properties.

28p extraenglish 24-05-2021 31 4   Download

Nanocomposite material LiFe1-xMxPO4/Gr was successfully synthesized achieving it with single phase. It’s response required electrochemical parameters of positive electrode materials for Li-ion batteries such as: improved diffusion coefficient and conductivity, higher capacity comparative with LFP in same conditional synthesis.

28p capheviahe26 25-01-2021 21 3   Download

Studying and orienting applicability to detecting, quantifying separately and simultaneously cadmium, lead in aqueous environment by means of stripping voltammetry method with the desire that the nanostructures of the electrodes help increase the sensitivity of the analytical method.

28p capheviahe26 25-01-2021 30 4   Download

Nội dung chính của bài viết trình bày việc sử dụng phương pháp ảnh điện đa cực (Multi-electrode Resistivity Imaging - MRI) vào việc nghiên cứu xác định nguyên nhân trượt lở nhằm bổ sung các thông tin có ích, tích hợp cùng với tài liệu địa chất để làm cơ sở khoa học cho các đề xuất giải pháp xử lý trượt lở, phòng tránh và giảm nhẹ thiệt hại. Mời các bạn tham khảo!

11p gaocaolon8 24-11-2020 35 1   Download

The differential pulse voltammetric method at a hanging mercury drop electrode was used to determine the presence of ofloxacin. In this study, the conditions under which differential pulse voltammetric measurement could be conducted were examined and established.

8p tamynhan8 04-11-2020 13 2   Download

Study on fabrication proton exchange membrane fuel cell (PEMFC). Characteristics and selection of the optimal catalyst material and composition for the catalyst layer in membrane electrodes assembly (MEA) and to evaluate influence of manufacturing technological parameters on MEA properties and from that basis master core technology to develop MEA manufacturing process.

28p trinhthamhodang7 31-08-2020 22 2   Download

This study presents the results of applying the method of two-electrode intensive measurements for diagnostic testing of the state of insulating coatings of main pipelines.

6p lucastanguyen 01-06-2020 6 2   Download

This study aims to develop an electrochemical immunosensor for detecting ENaC using a screen-printed carbon electrode (SPCE), which was modified with reduced graphene oxide (RGO).

10p tocectocec 25-05-2020 12 0   Download

An experimental analysis of the effect of gamma and X-ray irradiation with dose rate 0.25 -6mSv/h on low-density polyethylene (LDPE) and PMMA samples is presented. The focus of attention is on their DC conductivity as a dielectric of a capacitor.

10p tohitohi 19-05-2020 31 2   Download

Growth of the volumes of dangerous and critical welded metal structures constructed under low temperatures imposes additional requirements on the mechanical properties of the weld joints, particularly, on the impact resistance of the weld joint and on the stability of its values.

8p tohitohi 19-05-2020 11 0   Download

Bài viết tiến hành chế tạo điện cực CuO/ITO bằng phương pháp kết tủa điện hóa trong đó Cu được kết tủa trên đế dẫn ITO bằng phương pháp điện phân để tạo thành điện cực Cu/ITO, sau đó được ủ nhiệt để chuyển hóa Cu thành CuO và nghiên cứu cảm biến glucose dựa trên điện cực CuO/ITO.

8p khidoichuoi 04-03-2020 50 3   Download

Objective of the thesis: Successfully fabricate Cu2O thin film having good crystal structure. Fabricate layers protecting Cu2O electrode from photocorrosion. Study the photocatalytic, electro-photocatalytic water splitting properties of the Cu2O electrode.

29p xacxuoc4321 08-07-2019 16 6   Download

(BQ) In this research work two different materials have been used as work pieces. These EN8 and D3 steel materials have been machined in an Electrical discharge machine which has wide application in Industry fields. The important process parameters that have been selected are peak current, pulse on time, die electric pressure and tool diameter. The outputs responses are material removal rate (MRR), tool wear rate (TWR) and surface roughness (SR).

11p xuanphuongdhts 27-03-2017 48 2   Download