Search results for "Fuel Cell"

Ogniwa paliwowe i mikrobiologiczne ogniwa paliwowe - zastosowanie druku 3D

2018

Technologie ogniw paliwowych i mikrobiologicznych ogniw paliwowych mogą stać się w przyszłości jednymi z dominujących technologii wytwarzania energii elektrycznej. Konieczne są więc badania związane z tymi technologiami. Technologią, która może usprawnić prowadzenie badań w tym zakresie jest technologia druku 3D. Pozwala ona na wykonywanie dowolnych kształtów w jednym egzemplarzu. Ponadto koszt projektu i wydruku jest stosunkowo niski. Dzięki tej technologii można znacznie przyspieszyć prowadzenie badań z zakresu ogniw paliwowych i mikrobiologicznych ogniw paliwowych. Praca przedstawia wykorzystanie druku 3D w badaniach nad ogniwami paliwowymi i mikrobiologicznymi ogniwami paliwowymi prowad…

Wykorzystanie ogniw paliwowych jako elementu zrównoważonego rozwoju

2018

W ostatnich latach coraz szybciej rozwijają się technologie wykorzystujące alternatywne źródła energii. Jedną z nich jest technologia ogniw paliwowych. Ogniwo paliwowe przekształca paliwo chemiczne w sposób bezpośredni (z pominięciem procesu spalania) w energię elektryczną. Ponadto charakteryzuje się wysoką sprawnością. Sprawność ogniw paliwowych jest dwukrotnie wyższa od sprawności silników cieplnych. Ponadto ogniwa paliwowe mogą być zasilane biopaliwami. Szybki rozwój wykorzystania ogniw paliwowych na dużą skalę może przyczynić się do obniżenia zużycia paliwa, a także emisji dwutlenku węgla,tlenków azotu i innych. W pracy przedstawiono analizę bezpośredniej produkcji energii elektrycznej …

SISTEMI IBRIDI DI ALIMENTAZIONE PER DISPOSITIVI PORTATILI

2009

Electricity production from waste engine oil from agricultural machinery

2017

As fuel for fuel cells can be used various substances, but generally fuel cells are powered by hydrogen. However, problems with the storage of hydrogen are the reason for the search of new fuels for fuel cells. Moreover, annually are produced huge amount of waste oils. These oils must be directed to purification and processing. It would be important to use waste engine oil as fuel for fuel cell to direct electricity production without intermediate stage e.g. combustion. The paper presents the possibility of using waste engine oil as fuel for fuel cell. The oil does not have the feature of electrical conductivity, for this reason a detergent was used for dissolving oil in an electrolyte. So,…

Continuous monitoring of hydrogen and carbon dioxide at Mt Etna

2013

article i nfo This study assessed the use of an H2 fuel cell as an H2-selective sensor for volcano monitoring. The resolution, repeatability, and cross-sensitivity of the sensor were investigated and evaluated under known laboratory conditions. A tailor-made device was developed and used for continuously monitoring H2 and CO2 at Mt Etna throughout 2009 and 2010. The temporal variations of both parameters were strongly correlated with the evolution of the volcanic activity during the monitoring period. In particular, the CO2 flux exhibited long-term variations, while H2 exhibited pulses immediately before the explosive activity that occurred at Mt Etna during 2010.

An Overview of Functionalized Graphene Nanomaterials for Advanced Applications

2021

Interest in the development of graphene-based materials for advanced applications is growing, because of the unique features of such nanomaterials and, above all, of their outstanding versatility, which enables several functionalization pathways that lead to materials with extremely tunable properties and architectures. This review is focused on the careful examination of relationships between synthetic approaches currently used to derivatize graphene, main properties achieved, and target applications proposed. Use of functionalized graphene nanomaterials in six engineering areas (materials with enhanced mechanical and thermal performance, energy, sensors, biomedical, water treatment, and c…

A new application for nickel foam in alkaline fuel cells

2009

The use of nickel foam as an electrode substrate in alkaline fuel cells (AFCs) has been investigated for bi-polar cells incorporating an electrically conducting gas diffusion layer. This contribution focuses on the cathode, and draws comparisons between nickel foam and nickel mesh substrates. One of the principal electrocatalysts for the cathodic reduction of oxygen is silver, so an improvement in electrochemical performance was obtained by electroplating the nickel foam with silver. The electrodeposition process was optimised to maximise electrochemical performance with a minimum of silver deposited. Nickel foam, which is less expensive than the usual nickel mesh, appears to be a good subs…

DFT modelling of oxygen adsorption on the Ag-doped LaMnO3 (001) surface

2019

This study was partly financed by the State Education Development Agency of the Republic of Latvia via the Latvian State Scholarship (A.A.) and Latvia-Ukraine Project (Grant LV-UA/2018/2 to E.K.). The work of T.I. is performed under the state assignment of IGM SB RAS. Also, this research was partly supported by the Ministry of Education and Science of the Republic of Kazakhstan in the framework of the scientific and technology Program BR05236795 ‘‘Development of Hydrogen Energy Technologies in the Republic of Kazakhstan’’. The authors thank M. Sokolov for technical assistance and valuable suggestions.

MICROBIAL FUEL CELL WITH Ni-Co CATHODE AND KMnO4 CATHOLYTE

2017

The improving standard of living causes the increases in energy consumption and waste or wastewater production. The possibility of combining wastewater treatment and electricity production can be accomplished by means of a microbial fuel cell. The possibility of wastewater treatment using the Ni-Co alloy as cathode catalyst with KMnO4 catholyte for microbial fuel cells was presented in this paper. The measurements covered the comparison of changes in the concentration of COD, NH4+ and NO3- in the reactor without aeration, with aeration and using a microbial fuel cell (with Ni-Co cathode and KMnO4 catholyte). The reduction time for COD using a microbial fuel cell with the Ni-Co catalyst (and…

FUEL CELL POWERED WITH CANOLA OIL EMULSION

2017

The paper presents possibility of using canola oil as active substance to fuel cell powering. For this purpose a prototype fuel cell was built. Cell was powered with canola oil emulsion. As a detergent Syntanol DS-10 was used. The mesh electrode with Pt catalyst was used as a anode, and mesh electrode with Ni-Co catalyst was used as a cathode. The measurements conducted in the temperature range 293-333K. The maximum current density reached the level of 2 mA/cm2, and maximum power reached the level of 21 mW (at temp. 333K). So, the possibility of delivery of canola oil (in emulsion form) directly to the anode was shown. The obtain power is low, but was shown that it is possible to build the …