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nfdi4cat / voc4cat

A SKOS vocabulary for catalysis maintained by NFDI4Cat & friends
https://nfdi4cat.github.io/voc4cat/
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Generalizing photocatalysis concepts #81

Closed nmoust closed 2 weeks ago

nmoust commented 1 month ago

Changes mostly focusing on generalizing pre-existing photocatalysis concepts (+ fixing some typos).

Detailed changes:

IRI Concept Old definition New definition
voc4cat_0000009 pore size distribution Pore size distribution refers to the range of pore sizes in a material. The range of pore sizes in a material.
voc4cat_0000018 powder mass Mass of a powdered photocatalyst used for an experiment. Mass of a powdered catalyst used for an experiment.
voc4cat_0000022 doctor blading A tape-casting method used to deposit thin films of a photocatalyst onto the surface of a substrate. A tape-casting method used to deposit thin films of a catalyst onto the surface of a substrate.
voc4cat_0000026 metallic substrate A flat surface made of a metal (e.g., titanium, stainless steel) serving as a substrate for the deposition of a photocatalyst. A flat surface made of a metal (e.g., titanium, stainless steel) serving as a substrate for the deposition of a catalyst.
voc4cat_0000032 ceramic substrate A surface made of a ceramic material (e.g., alumina) serving as a substrate for the deposition of a photocatalyst. A surface made of a ceramic material (e.g., alumina) serving as a substrate for the deposition of a catalyst.
voc4cat_0000041 thin film width The width of the film of the deposited photocatalyst. The width of the film of the deposited catalyst.
voc4cat_0000042 thin film thickness The thickness of the film of the deposited photocatalyst. The thickness of the film of the deposited catalyst.
voc4cat_0000043 thin film depth The depth of the film of the deposited photocatalyst. The depth of the film of the deposited catalyst.
voc4cat_0000044 thin film area The area of the substrate covered by the deposited photocatalyst. The area of the substrate covered by the deposited catalyst.
voc4cat_0000050 synthesis duration Duration of each synthesis step needed to synthesize the desired photocatalyst. Duration of each synthesis step needed to synthesize the desired catalyst.
voc4cat_0000061 synthesis equipment Equipment used in each step of the synthesis of the photocatalysts. The equipment can include (but not limited to): crucibles, pH meters, condensers, volumetric cylinders, centrifuges, test tubes, flasks, beakers, mechanical shakers, pipettes, syringes, magenetic stirrers, heating plates, filters, funnels and digital balances. Equipment used in each step of the synthesis of the catalysts. The equipment can include (but not limited to): crucibles, pH meters, condensers, volumetric cylinders, centrifuges, test tubes, flasks, beakers, mechanical shakers, pipettes, syringes, magnetic stirrers, heating plates, filters, funnels, and digital balances.
voc4cat_0000094 desorption The process under which reactants, intermediates and products are released from the surface of the photocatalyst. Desoprtion can be facilitated by an increase in temperature or a change in the pH. The process under which reactants, intermediates and products are released from the surface of the catalyst. Desorption can be facilitated by an increase in temperature or a change in the pH.
voc4cat_0000102 reactant concentration Concentration of the reactants (e.g., CO2 and H2O) used in the photocatalytic CO2 reduction experiments. Concentration of the reactants used to perform an experiment.
voc4cat_0000103 reactant purity Purity of reactants (e.g., CO2, H2O, He) used in the photocatalytic CO2 reduction experiments. Purity is measure of the impurities contained in the reactants' supply. The highest purity reactants should be used to ensure the collection of reliable results. Purity of reactants used in an experiment. Purity is a measure of the impurities contained in the reactants' supply. The highest purity reactants should be used to ensure the collection of reliable results.
voc4cat_0000104 reactant flow rate The rate of flow of reactants (often in ml per min) in the photoreactor. Flow rates are usually controlled by mass flow controllers (MFCs). The rate of flow of reactants (often in ml per min) in a reactor. Flow rates are usually controlled by mass flow controllers (MFCs).
voc4cat_0000110 batch mode Operation mode in which the reaction chamber is filled with the (reactant) gas(es) up to a certain pressure, and the photoreaction products acummulate over time. Operation mode in which the reaction chamber is filled with the (reactant) gas(es) up to a certain pressure, and the reaction products accumulate over time.
voc4cat_0000114 irradiation duration The total duration in which the photocatalyst was under irradiation by the selected light source. The total duration in which a catalyst is under irradiation by the selected light source.
voc4cat_0000122 sample pre-treatment Pretreatment of the photocatalyst before its intoduction to the reaction chamber. Pre-treatment of a catalyst before its introduction to the reaction chamber.
voc4cat_0000123 blank experiment Measurements performed to ensure that the studied photocatalytic reaction occurs because of the interaction of the photocatalyst with the reactants, and not from the environment or the photoreactor. Such blank experiment include experiments under dark conditions, experiments with light but without a photocatalyst and experiments under light in the presence of the photocatalyst but without the targeted reactants. Measurements performed to ensure that the studied catalytic reaction occurs because of the interaction of the catalyst with the reactants under the selected experimental conditions, and not from the environment or the reactor.
voc4cat_0000151 temperature controller and monitor Equipment used for controlling and/or monitoring the temperature in various parts of a photoreactor. This can include hot plates, heating elements and cryostats. Light sources in operation can also affect the temperature in the reaction chamber. Equipment used for controlling and/or monitoring the temperature in various parts of a reactor. This can include hot plates, heating elements and cryostats.
voc4cat_0000158 optical window material Material that the window is made of. The window, usually attached to the lid sealing the reaction chamber, allows for the incoming light to enter the reaction chamber and interact with the photocatalyst. The material of the window influences the wavelenth range the the photocatalyst experieneces. Material that the optical window is made of. The window, usually attached to the lid sealing the reaction chamber, allows the incoming light to interact with the catalyst. The material of the window influences the wavelength range that the catalyst experiences.
voc4cat_0000160 optical window diameter Diameter of the optical window allowing the incoming light to enter the reaction chamber and interact with the photocatalyst. Diameter of the optical window allowing the incoming light to enter the reaction chamber and interact with the catalyst.
voc4cat_0000161 optical window thickness Thickness of the optical window allowing the incoming light to enter the reaction chamber and interact with the photocatalyst. Thickness of the optical window allowing the incoming light to enter the reaction chamber and interact with the catalyst.
voc4cat_0000171 light source distance The distance of the light source from the reaction chamber and the photocatalyst. The distance of the light source from the reaction chamber and the catalyst.
voc4cat_0000004 categories of semiconductors Broad families of semiconduction materials (e.g., metal oxides) that can be used as photocatalysts in various applications. Broad families of semiconducting materials (e.g., metal oxides) that can be used as catalysts in various applications
voc4cat_0000014 modification technique Techniques used to modify the properties of a photocatalyst, with the aim to increase its efficiency in a photocatalytic application. Techniques used to modify the properties of a catalyst, with the aim to increase its efficiency in a catalytic application.
voc4cat_0000024 substrate The substate onto which a (powdered) photocatalyst is deposited. Such substrates include glass surfaces (e.g., borosilicate glass or conductive glass like ITO and FTO), ceramic substrates (e.g., alumina) or metal substrates (e.g., Ti foils, stainless steel etc.). The substate onto which a (powdered) catalyst is deposited. Such substrates include glass surfaces (e.g., borosilicate glass or conductive glass like ITO and FTO), ceramic substrates (e.g., alumina) or metal substrates (e.g., Ti foils, stainless steel etc.).
voc4cat_0000146 pressure controller and monitor Equipment used for controlling and / or monitoring the pressure in various parts of a photoreactor. A vacuum pump is a typical example of such equipment. Equipment (e.g., a vacuum pump) used for controlling and / or monitoring the pressure in various parts of a reactor.
voc4cat_0000163 gas flow controller and monitor Equipment used for controlling and / or monitoring the flow of gases (reactant or inert) needed for a photocatalytic experiment. Mass flow controllers (MFCs) are commonly used to control gas flows. Equipment used for controlling and / or monitoring the flow of gases (reactant or inert) needed for a catalytic experiment. Mass flow controllers (MFCs) are commonly used to control gas flows.
voc4cat_0000038 deposited sample A thin film of the photocatalyst deposited on an appropriate for the application substrate. A thin film of the catalyst deposited on an appropriate for the application substrate.
voc4cat_0000084 electronic state The energy state occupied by an electron in a photocatalyst. This state cab affect the electron's ability to participate in a photocatalytic reaction. The energy state occupied by an electron in a catalyst. This state can affect the electron's ability to participate in a catalytic reaction.
voc4cat_0000105 sacrificial reagent Electron donors or hole scavengers used to reduce the recombination tendency of electrons and holes. Sacrificial reagents are used in photocatalysis to study an oxidation or reduction reaction separately. Electron donors or hole scavengers used to reduce the recombination tendency of electrons and holes. Sacrificial reagents are used in catalysis to study an oxidation or reduction reaction separately.
voc4cat_0000115 experiment temperature The temperature (range) under which the photocatalytic reaction takes place. The temperature (range) under which the catalytic reaction takes place.
voc4cat_0000118 experiment pressure The pressure (range) under which the photocatalytic reaction takes place. The pressure (range) under which the catalytic reaction takes place.
voc4cat_0000142 operation parameters The range of critical for the safe operation of the photoreactor parameters. The range of parameters, critical for the safe operation of a reactor.
voc4cat_0000159 optical window dimensions The dimension of the optical window (diameter / thickness) allowing the incoming light to enter the reaction chamber and interact with the photocatalyst. The dimension of the optical window (diameter / thickness) allowing the incoming light to enter the reaction chamber and interact with the catalyst.
voc4cat_0000165 irradiation system The irradiation system includes all the necessary equipment needed to perform a photocatalytic experiment. The system apart from the light source can include, filters, power units, lamp cooling devices etc.. All the necessary equipment needed to perform a catalytic experiment involving irradiation. The system apart from the light source can include, filters, power units, lamp cooling devices etc..
voc4cat_0000020 deposition technique A technique used to deposit (immobilize) a (powdered) photocatalyst on a substate. These techniques indlude (but are not limited to): doctor blading, spin coating, spray coating, etc.. A technique used to deposit (immobilize) a (powdered) catalyst on a substate. These techniques include (but are not limited to): doctor blading, spin coating, spray coating, etc..
voc4cat_0000062 chemical substance for synthesis Chemical substances used in the synthesis process of a desired photocatalyst. Chemical substances used in the synthesis process of a desired catalyst.
voc4cat_0000124 evaluation Quantitative and qualitative evaluation of the outcome of a photocatalytic reaction (e.g., product formation from the photoreduction of CO2). The evaluation can lead to changes in the synthesis of the photocatalyst and / or selecting different experimental parameters. Quantitative and qualitative evaluation of the outcome of a catalytic reaction. The evaluation can lead to changes in the synthesis of the catalyst and / or selecting different experimental parameters.
voc4cat_0000129 product identification method Spectroscopic or chromatographic methods used to qualitatively and quantitatively identify the products of the photoreaction. Such devices are usually attached to the photoreactor, or a sample is being trasfered to an identification method via another medium (e.g., gastight syringes). Spectroscopic or chromatographic methods used to identify the products of the reaction qualitatively and quantitatively. Such devices are usually attached to the reactor, or a sample is being transferred to an identification method via another medium (e.g., gastight syringes).
voc4cat_0000166 light source Light source used to irradiate a photocatalyst in a reaction chamber. These include sources with various intensities, powers and wavelength ranges, including Hg/Xe lamps, Xe lamps and LEDs. Source used to irradiate a catalyst in a reaction chamber. These include sources with various intensities, power, and wavelength ranges, including Hg/Xe lamps, Xe lamps and LEDs.
voc4cat_0000027 glass substrate A flat surface made of glass serving as a substrate for the deposition of a photocatalyst. A flat surface made of glass serving as a substrate for the deposition of a catalyst.
voc4cat_0000152 reaction chamber A construction inside of which the photocatalyst and the reactants coexist and the photoreaction takes place. A construction inside of which the catalyst and the reactants coexist, and the reaction takes place.
voc4cat_0000170 light source property Specific of roperties of the light source dictaning its operation and its adequacy in the studied photocatalytic reaction. Specific of properties of the light source dictating its operation and its adequacy in the studied catalytic reaction.
voc4cat_0000006 semiconductor property Characteristic properties of a semiconductor used in the field of photocatalysis. These properties determine its performance in the studied photocatalytic application. Characteristic properties of a semiconductor used in catalysis. These properties determine its performance in the studied catalytic application.
voc4cat_0000049 synthesis procedure Necessary steps needed to follow in order to reach the desired photocatalyst. Necessary steps needed to follow to reach the desired catalyst.
voc4cat_0000100 photocatalytic experiment A lab-scale experiment performed to test the efficiency of a studied photocatalyst in a photocatalytic application (e.g., dye degradation, CO2 photoreduction e.t.c.). A lab-scale experiment performed to test the efficiency of a studied photocatalyst in a photocatalytic application.