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Research Article | 15-February-2020

Palladium Nanotubes for Optical Hydrogen Sensing

Arrays of freestanding upright palladium nanotubes have been fabricated using a bottom-up method of electrodepositing into anodised alumina pores. Optical transmission measurements carried out with a range of postfabrication treatment methods suggest that hydrogen diffuses into both the inner and outer surface areas of the tube structure. Furthermore, scanning electron microscopy of the same sample before and after cycling hydrogen exposure show that the structures appear undamaged by the

M. B. McAuley, A. Murphy, R. Pollard

International Journal on Smart Sensing and Intelligent Systems, Volume 7 , ISSUE 5, 1–4

original-paper | 11-March-2020

Direct Fermentative Hydrogen Production from Cellulose and Starch with Mesophilic Bacterial Consortia

Introduction Hydrogen is widely deemed as a promising energy carrier of the future. Currently, most of the hydrogen is delivered from the non-renewable fossil fuels – mainly through the steam reforming of methane (Sgobbi et al. 2016). In order to produce a more sustainable fuel, hydrogen production processes should avoid or minimize CO2 emissions. Among many methods of hydrogen generation, biological hydrogen production has been of great interest in recent years (Trchounian et al. 2017). Dark

ROMAN ZAGRODNIK, KRYSTYNA SEIFERT

Polish Journal of Microbiology, Volume 69 , ISSUE 1, 109–120

Research paper | 13-December-2017

HYDROGEN GAS SENSING PERFORMANCE OF Pt/SnO2 NANOWIRES/SiC MOS DEVICES

This paper presents material and gas sensing properties of Pt/SnO2 nanowires/SiC metal oxide semiconductor devices towards hydrogen. The SnO2 nanowires were deposited onto the SiC substrates by vapor-liquid-solid growth mechanism. The material properties of the sensors were investigated using scanning electron microscopy, transmission electron microscopy and X-ray photoelectron spectroscopy. The current-voltage characteristics have been analyzed. The effective change in the barrier height for 1

M. Shafiei, K. Kalantar-zadeh, W. Wlodarski, E. Comini, M. Ferroni, G. Sberveglieri, S. Kaciulis, L. Pandolfi

International Journal on Smart Sensing and Intelligent Systems, Volume 1 , ISSUE 3, 771–783

original-paper | 18-February-2020

Impact of Hydrogen on the Transcriptome of Sinorhizobium meliloti 1021 Using RNA-sequencing Technology

successfully reduced this energy loss. Most of the hydrogen released from legume nodules is absorbed by the soil (La Favre et al. 1983). A large amount of hydrogen is released during the nitrogen fixation process, but only a small amount is released into the atmosphere because of the actions of soil microorganisms that harvest the produced H2 for energy. Kärst et al. (1987) demonstrated that hydrogen-utilizing bacteria could promote plant growth because they possess hydrogenase, a metal-containing protein

RUIRUI LIU, LULU LI, ZHIYING LI, WEIWEI WANG

Polish Journal of Microbiology, Volume 69 , ISSUE 1, 39–48

Research Article | 15-February-2020

Polypyrrole Based Nano-Biosensor for Sensing Low Concentrations of Hydrogen Peroxide

This paper discuss about a novel technique of developing a nano-structured polypyrrole biosensor for measurement of very low concentrations of hydrogen peroxide in liquid media. The proposed fabrication method is very effective in growing a nano-structured conducting polymer layer on a planar conducting substrate. In addition enzyme loading was done under a high electric field of 1000V/m. The developed sensor provides a liner range of 0-200µM of hydrogen peroxide and a measurement

D.M.G. Preethichandra, M. Onoda

International Journal on Smart Sensing and Intelligent Systems, Volume 7 , ISSUE 5, 1–4

Article | 25-November-2017

THE INFLUENCE OF SELECTED GASEOUS FUELS ON THE COMBUSTION PROCESS IN THE SI ENGINE

Summary. This paper presents the results of SI engine tests, carried out for different gaseous fuels. The analysis carried out made it possible to define the correlation between fuel composition and engine operating parameters. The tests covered various gaseous mixtures: methane with hydrogen from 5% to 50% by volume and LPG with DME from 5% to 26% by mass. The first group, considered as low-carbon-content fuels can be characterized by low CO2 emissions. Flammability of hydrogen added in those

Marek FLEKIEWICZ, Grzegorz KUBICA

Transport Problems, Volume 12 , ISSUE 3, 135–146

research-article | 23-April-2019

SELECTED ASPECTS OF THE USE OF GASEOUS FUELS BLENDS TO IMPROVE EFFICIENCY AND EMISSION OF SI ENGINE

biofuels, LPG, or compressed natural gas (CNG), and the development of electric drives. An attractive option in counteracting the effects of the emission of internal combustion engines is alternative gas fuels, including biogas, natural gas, dimethyl ether (DME), hydrogen (H2), and mixtures of them. This article focuses on mixtures that are easy to obtain: natural gas and hydrogen (HCNG) and petroleum gases with dimethyl ether (LPG and DME). Their impact on engine performance, combustion

Grzegorz KUBICA, Marek FLEKIEWICZ, Paweł MARZEC

Transport Problems, Volume 14 , ISSUE 1, 95–103

Article | 09-August-2018

USE OF BIOLOGICAL METHODS FOR REMOVAL OF H2S FROM BIOGAS IN WASTEWATER TREATMENT PLANTS – A REVIEW

Biogas is produced during anaerobic digestion of organic substances by a consortium of microorganisms. Biogas consists mainly of methane (CH4 ) and carbon dioxide (CO2). Other gases such as dinitrogen (N2), water vapour (H2 O), ammonia (NH3), hydrogen sulfide (H2S) and other sulfur compounds could also be found therein. Biogas produced by waste biomass has been recognized as one of the most important alternative energy sources in the recent years. In order to be used as a source of energy to

Krzysztof Barbusiński, Katarzyna Kalemba

Architecture, Civil Engineering, Environment, Volume 9 , ISSUE 1, 103–112

Research Article | 15-February-2020

Annealing Effect on the Structural and Optical properties of SiOx films deposited by HFCVD

Non-stoichiometric silicon oxide (SiOx) with embedded Si nanoparticles (Si-nps) shows novel physical characteristic, which permits its use in optoelectronic devices as photodetectors and light emitters. In this work, a detailed analysis of the structural and optical properties of silicon rich oxide films deposited via hot filament chemical vapor deposition is done. SiOx films with different Si content were obtained at different hydrogen flow. FTIR spectra show vibrational bands related to the

J. A. Luna López, A. Benítez Lara, G. García Salgado, D. Hernández de la Luz, M. Pacio, A. Morales Sanchez, S. A. Perez Garcia

International Journal on Smart Sensing and Intelligent Systems, Volume 7 , ISSUE 5, 1–6

Article | 05-September-2020

LIFE CYCLE ASSESSMENT OF FUEL CELLS ELECTRIC VEHICLES

technologies of hydrogen (H2), is carried out. Life cycle assessment (LCA) method is used. A comparison, concerning fuel consumption and emissions as CO2 equivalent for the whole life cycle, is done for FCEV and conventional gasoline vehicle (GV). The influence of the energy mix and technology of production of hydrogen on spent energy and air pollution is analyzed. As the results show, in countries with CO2 emissions over 447 g per 1 kWh electricity, the technology of hydrogen production from natural gas

Ivan EVTIMOV, Rosen IVANOV, Hristo STANCHEV, Georgi KADIKYANOV, Gergana STANEVA

Transport Problems, Volume 15 , ISSUE 3, 153–166

research-article | 08-April-2020

TREATMENT OF WASTEWATER FROM THE FOUNDRY INDUSTRY USING FENTON PROCESS

applies to various industries, including the foundry industry. Important environmental aspects of the non-ferrous metal foundry industry include the emission of organic pollutants from pyrolysis and thermal decomposition of binders, protective coatings, etc. (including phenol, formaldehyde, amines, hydrogen cyanide, polycyclic aromatic hydrocarbons – PAHs, benzene, and Volatile Organic Compounds – VOC), as well as the generation of wastewater, e.g. from wet dedusting, and – in the case of pressure

Paulina DAWCZAK, Mariusz DUDZIAK

Architecture, Civil Engineering, Environment, Volume 13 , ISSUE 1, 115–120

research-article | 23-September-2021

ENZYMATIC HYDROGEN BIOPRODUCTION. STRUCTURE, FUNCTION AND APPLICATION OF HYDROGENASES

Małgorzata Witkowska, Agnieszka Żylicz-Stachula, Anna Struck

Advancements of Microbiology – Postepy Mikrobiologii, Volume 60 , ISSUE 3, 231–239

Article | 30-November-2018

Nuclear Fusion Power – An Overview of History, Present and Future

complexity of the devices involved increased to the point where international co-operation was the only way forward. Fusion powers the Sun and stars as hydrogen atoms fuse together to form helium, and matter is converted into energy. Hydrogen, heated to very high temperatures changes from a gas to plasma in which the negatively-charged electrons are separated from the positively-charged atomic nuclei (ions). Normally, fusion is not possible because the strongly repulsive electrostatic forces between the

Stewart C. Prager

International Journal of Advanced Network, Monitoring and Controls, Volume 4 , ISSUE 4, 1–10

research-article | 30-November-2019

OVERVIEW OF SELECTED NATURAL GAS DRYING METHODS

pipelines [7]. In addition, it contributes to the phenomenon of condensation, which leads to the formation of so-called corks and erosion, increasing the volume and decreasing the calorific value of gas. In addition, liquid water accelerates the corrosion process and makes it difficult to measure the flow rate, especially when the gas contains carbon dioxide and/or hydrogen sulphide. For the above reasons, it is necessary to dehumidify the gas before transportation or processing [8, 9]. The paper

Natalia GENEROWICZ

Architecture, Civil Engineering, Environment, Volume 13 , ISSUE 3, 73–83

original-paper | 04-June-2020

Lactobacillus fermentum JX306 Restrain D-galactose-induced Oxidative Stress of Mice through its Antioxidant Activity

firstly screened for their DPPH free radical scavenging ability. As shown in Table II, six LAB strains were selected based on their high DPPH radical scavenging capacity. The strongest scavenging effects on the DPPH radical scavenging capacity were found for L. fermentum 306 (37.29%). Table II The selected LAB strains with high antioxidant activity. Strains DPPH scavenging rate (%) Hydrogen radicals scavenging rate (%) Inhibition rate of lipid peroxidation (%) L. fermentum JX306 37.29

DI ZHANG, CHUANG LI, RUIRUI SHI, FENGCHUN ZHAO, ZHENGYOU YANG

Polish Journal of Microbiology, Volume 69 , ISSUE 2, 205–215

Research Article | 08-February-2019

ANALYSIS OF CONCRETE CORROSION OF MANHOLE LOCATED NEAR SOURCE OF ODOROUS EMISSION

interaction of hydrogen sulphide, which average concentration in the sewage air, during an exemplary 84 hours was 29 ppm. Concrete was gelatinous fine with noticeable outer pellicular layer of 1 mm thick and the inner layer containing aggregates (grain < 1 cm). Sulfur oxidizing, sulfates reducing, Fe2+ oxidizing bacteria, aerobic heterotrophs, anaerobic heterotrophs, nitrifiers and denitrifiers were determined. In the concrete sample, no sulfate-reducing bacteria were detected under the film-like layer

Bożena GIL, Barbara SŁOMKA-SŁUPIK, Katarzyna KOWALSKA, Karol JASIŃSKI

Architecture, Civil Engineering, Environment, Volume 11 , ISSUE 4, 93–104

Original Paper | 26-August-2016

Characterization of a Highly Enriched Microbial Consortium Reductively Dechlorinating 2,3-Dichlorophenol and 2,4,6-Trichlorophenol and the Corresponding cprA Genes from River Sediment

Anaerobic reductive dechlorination of 2,3-dichlorophenol (2,3DCP) and 2,4,6-trichlorophenol (2,4,6TCP) was investigated in microcosms from River Nile sediment. A stable sediment-free anaerobic microbial consortium reductively dechlorinating 2,3DCP and 2,4,6TCP was established. Defined sediment-free cultures showing stable dechlorination were restricted to ortho chlorine when enriched with hydrogen as the electron donor, acetate as the carbon source, and either 2,3-DCP or 2,4,6-TCP as electron

Wael S. El-Sayed

Polish Journal of Microbiology, Volume 65 , ISSUE 3, 341–352

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