Monitoring Electrodes Articles

  • Instrumentation and Operational Considerations for On-Line pH Measurement in Samples Below 10µS/cm Conductivity

    Ordinarily pH measurements are made in water with 1,000 to 10,000 µS/cm conductivity. The conductivity comes from dissolved solids which are typically salts but also acid or base. These dissolved substances are in the solution in ion form which makes such solutions conducting. With conductivities of 1,000 µS/ cm or more, an ample supply of mobile ions provides pH electrodes with a ...


    By IC Controls Ltd.

  • Oxocarbon Salts for Fast Rechargeable Batteries

    Oxocarbon salts (M2(CO)n) prepared through one-pot proton exchange reactions with different metal ions (M=Li, Na, K) and frameworks (n=4, 5, 6) have been rationally designed and used as electrodes in rechargeable Li, Na, and K-ion batteries. The results show that M2(CO)5/M2(CO)6 salts can insert two or four metal ions ...


    By SusChem

  • Identification of Archeological Remnants

    Czorsztyn Castle, Poland 2D Electrical Imaging Objective Study area was within the ruins of the 14th century Czorsztyn Castle, located in the boundaries of Pieniny National Park (southern Poland). The main goal of this research was to check if one of the stone wall residues continues under the ground surface. Additionally, an attempt was ...


    By Advanced Geosciences, Inc.

  • Why You Should Replace Your Fluorescent T8 Bulbs

    Fluorescent light bulbs are, for many of us, an almost nostalgic part of life. From that crackling fluorescent tube above our old kitchen stove to the almost paralyzing white light that illuminated every corner of our classrooms and office building floors, fluorescent lights have been practically everywhere for the past 80 years. The first developments in arc tube lighting trace as far back as ...


    By Forest Lighting USA

  • pH/ORP Sensors for Metallurgical Applications

    Importance of pH Measurement Hydrometallurgical concentrating and refining applications require pH/ORP sensors to withstand aggressive environments while maintaining accurate measurement. Processes such as cyanide leaching (e.g gold) and solvent extraction (e.g. copper, nickel, zinc) require pH and ORP to be at very specific values to yield the desired chemical species. pH may need ...


    By IC Controls Ltd.

  • Proposal of a framework for scale‐up life cycle inventory: A case of nanofibers for lithium iron phosphate cathode applications

    Environmental assessments are crucial for the management of the environmental impacts of a product in a rapidly developing world. The design phase creates opportunities acting on the environmental issues of products using life cycle assessment (LCA). However, it is hampered by a lack of information originating from distinct scales along the product or technology value chain. There are many ...


    By John Wiley & Sons, Ltd.

  • Arsenic removal from groundwater using low-cost carbon composite electrodes for capacitive deionization

    Affordable carbon composite electrodes were developed to treat low-concentrated groundwater using capacitive deionization (CDI). A carbon slurry prepared using activated carbon powder (ACP), poly(vinylidene fluoride), and N-methyl-2-pyrrolidone was employed as a casting solution to soak in a low-cost porous substrate. The surface morphology of the carbon composite electrodes was investigated ...


    By IWA Publishing

  • Removal of clomazone herbicide from a synthetic effluent by electrocoagulation

    The aim of this work was to investigate the kinetics of removal of clomazone herbicide from an aqueous solution by electrocoagulation. The experiments were performed in a cylindrical batch reactor with six aluminum electrodes in monopolar mode, arranged in series and connected to a digital DC power. The aqueous solution (tap water + clomazone) with initial pH close to 7.9 was always treated at ...


    By IWA Publishing

  • Indianapolis, Indiana - CVOC remediation adjacent to occupied building with sheet pile electrodes - Case Study

    Standard Fixed Price Remediation of TCE and VC in soil and groundwater Project Summary TRS Group, Inc. (TRS) provided a Standard Fixed Price Remediation (SFPR) of trichioroethene (TCE) and vinyl chloride (VC) in soil and groundwater using Electrical Resistance Heating (ERH) for AECOM at a confidential site located in Indianapolis, Indiana, Unique aspects of ...


    By TRS Group, Inc.

  • Electrolytic denitrification with an ion-exchange membrane in groundwater

    Nitrate contamination of groundwater is an important issue in rural areas. In this study, an electrolytic method for the denitrification of groundwater was investigated in a laboratory reactor. We used an ion-exchange membrane, employing a titanium oxide anode and five kinds of cathode for the investigation. The nitrate removal efficiencies with Cu, Pb, Ti/Ir/Ru, Ti/Ir/Ta, and Zn cathodes were ...


    By IWA Publishing

  • Electrochemical degradation of perfluoroalkyl and polyfluoroalkyl substances (PFASs) in groundwater

    Perfluoroalkyl and polyfluoroalkyl substances (PFASs) represent hazardous pollutants and are frequently detected in the environment, e.g. in contaminated groundwater. PFASs are persistent to biodegradation and conventional oxidation processes such as ozonation. In this study electrochemical degradation of PFASs on boron-doped diamond (BDD) electrodes is demonstrated. Experiments were performed ...


    By IWA Publishing

  • Use of geological mapping tools to improve the hydraulic performance of SuDS

    Most cities in Denmark are situated on low permeable clay rich deposits. These sediments are of glacial origin and range among the most heterogeneous, with hydraulic conductivities spanning several orders of magnitude. This heterogeneity has obvious consequences for the sizing of sustainable urban drainage systems (SuDS). We have tested methods to reveal geological heterogeneity at field scale ...


    By IWA Publishing

  • Combination of a novel electrode material and artificial mediators to enhance power generation in an MFC

    This study focuses on two main aspects: developing a novel cost-effective electrode material and power production from domestic wastewater using three different mediators. Methylene blue (MB), neutral red (NR) and 2-hydroxy-1,4-naphthoquinone (HNQ) were selected as electrode mediators with different concentrations. A tin-coated copper mesh electrode was tested as anode electrode. Maximum power ...


    By IWA Publishing

  • Dye–sensitised solar cells using TiO
    2
    nanoparticles: a review

    Over the past two decades, several research papers have been published on dye–sensitised solar cells ever since its conception was first reported in 1991. This paper discusses their basic principle, fabrication in the laboratory and developments, based on results reported in literature. The various factors which stand in favour and against their commercialisation and their characterisation by ...


    By Inderscience Publishers

  • What are the key steps in measuring pH? Why do I need to calibrate?

    pH is a useful parameter which is used across all industries for quality control, environmental monitoring, lab work and much more. There are 10 key steps which should be followed to ensure pH measurements using a meter are accurate. pH is a useful parameter which is used across all industries for quality control, environmental monitoring, lab work and much ...


    By Camlab Limited

  • Electrochemical properties of graphitic carbon nitrides

    Lithium-ion batteries (LIBs) are the current devices of choice for portable energy storage applications; however, improvements in energy and power densities are required to sustain future more demanding tasks, such as those associated with automotive transport. Commercially, LIB anodes are typically made from graphitic carbon-based systems that present bottlenecks associated with surface ...


    By Inderscience Publishers

  • PEDOT–PSS/MWCNT coatings on PET for conducting polymer actuators

    The electrochemical deposition of a conducting polymer on a non–conductive polymer requires a conductive layer, which can be achieved by sputtering or vaporisation of precious metals such as gold or platinum. In this investigation we coated poly(styrenesulphonate) doped poly(3,4–ethylenedioxythiophene)/multi–walled carbon nanotubes (PEDOT–PSS/MWCNT), in a ratio of 2.4 : 1 on a poly(ethylene ...


    By Inderscience Publishers

  • Designing PEDOT–based sensors for antioxidant analysis

    Antioxidants play important roles in food quality and the protection and promotion of human health. The most commonly used antioxidant determination techniques are the Folin–Ciocalteu assay and HPLC analyses. However, these methods have various disadvantages such as long time requirements, low sensitivity, interfering agents etc. Cyclic voltammetry at inert electrodes is another method for ...


    By Inderscience Publishers

  • Grapheme for the Advancement of Biotelemetry

    Graphene is evidently flourishing in the nanotechnology industry, and it is now taking its steps towards its potency in medical application. Recently, a research team at Pacific Northwest National Laboratory (PNNL) has just developed the world’s smallest battery.  Building a battery with a size of just that of a grain of rice is really a big deal, something that could get a major break ...


  • Mapping of freshwater aquifers by GeoView case study

    Big Pine Key, Florida The Nature Conservancy is studying the physical and biological changes that will occur on small oceanic islands as a result of sea level rise. Big Pine Key, Florida is one of the primary areas of investigation because of extensive previous work on the key and because a large portion of the island is a National Wildlife Refuge. As part of the investigation, GeoView ...


    By GeoView, Inc.

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