Готові списки джерел за темами / Catalyst Ru/HPS MN 100 / Статті в журналах
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Статті в журналах з теми "Catalyst Ru/HPS MN 100"

Автор: Grafiati
Опубліковано: 3 червня 2025
Оновлено: 31 липня 2025

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1

Matveeva, V. G., O. V. Manaenkov, A. E. Filatova, et al. "Hydrolytic Hydrogenation of Cellulose with the Use of the Ru-containing Polymeric Catalysts." MOLECULAR SCIENCES AND APPLICATIONS 1 (July 14, 2021): 35–41. http://dx.doi.org/10.37394/232023.2021.1.7.

Повний текст джерела
Анотація:
The study presents the results of cellulose hydrolytic hydrogenation process in subcritical water in the presence of Ru-containing catalysts based on hypercrosslinked polystyrene (HPS) MN-270 and its functionalized analogues: NH2-HPS (MN-100) and SO3H-HPS (MN-500). It was shown that the replacement of the traditional support (carbon) by HPS increases the yield of the main cellulose conversion products – polyols – important intermediates for the chemical industry. The catalysts were characterized using transmission electron microscopy (TEM), high resolution TEM, and porosity measurements. Catal
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2

Grigorev, M., M. Lebedeva, O. Manaenkov, and A. Filatova. "Cellobiose hydrogenation to D-sorbitol using Ru/HPS MN 100 catalyst." Bulletin of Science and Practice 4, no. 12 (2018): 101–5. https://doi.org/10.5281/zenodo.2254889.

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Анотація:
This work is devoted to the process of cellobiose (4-O–beta–D–glucopyranosyl–D–glucose) hydrogenation to D–sorbitol, which is valuable raw material for food, chemical, and pharmaceutical industries. The data on the regularities of the catalytic hydrogenation of cellobiose to D–sorbitol are presented in this work. Cellobiose hydrogenation was performed in a batch reactor. The catalytic system presented by 3 wt. % ruthenium supported on the hypercrosslinked polystyrene (HPS) was used as a catalyst for cellobiose hydrogenation. The catalyst was produced b
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3

Максим Евгеньевич, Григорьев,, and Сидоров, Александр Иванович. "DETERMINATION OF CHARACTERISTICS OF THE SURFACE OF THE CATALYST Ru/HPS MN 100 (H2)." Вестник Тверского государственного университета. Серия: Химия, no. 3(49) (October 28, 2022): 29–38. http://dx.doi.org/10.26456/vtchem2022.3.4.

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Анотація:
В статье показана значимость использования метода низкотемпературной адсорбции азота для анализа поверхности каталитических систем. Этим методом был исследован гетерогенный катализатор Ru/СПСMN 100 (Н). Данный катализатор показал высокие значения конверсии и селективности по многоатомным спиртам при его использовании в процессе жидкофазного гидрирования моно- и дисахаридов (глюкозы, ксилозы, мальтозы, маннозы, лактозы до соответствующих полиолов).Полученная изотерма адсорбции для Ru/СПСMN 100 (Н2)была отнесена к одному из типов изотерм по классификации Брунауэра, а также охарактеризована петля
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4

Grigorev, M., M. Lebedeva, O. Manaenkov, V. Doluda, A. Filatova, and V. Matveeva. "Hydrogenation of d-mannose to d-mannite using the catalyzer Ru/MN 100." Bulletin of Science and Practice, no. 12 (December 11, 2017): 118–24. https://doi.org/10.5281/zenodo.1101190.

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Анотація:
This work is devoted to the process of hydrogenation of D–mannose to D–mannitol, which is valuable raw material for food, chemical and pharmaceutical industries. Experimental data on catalytic hydrogenation of D–mannose to D–mannitol, i. e. the dependence of the substrate conversion on temperature (varied from 393 up to 493 K), partial hydrogen pressure (varied from 20 atm up to 80 atm) and concentration of D–mannose (varied from 0.1 mol/L up to 0.6 mol/L), are presented in this work. The dependence of selectivity of the catalytic hydrogenation process on the
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5

Григорьев, Максим Евгеньевич, Олег Викторович Манаенков, Валентина Геннадьевна Матвеева, and Роман Викторович Бровко. "APPLICABILITY OF THE LANGMUIR-HINSHELWOOD MODEL TO HYDROGENATION OF MONO - AND DISACCHARIDES ON THE Ru/HPS MN 100 CATALYST." Вестник Тверского государственного университета. Серия: Химия, no. 3(41) (November 10, 2020): 29–40. http://dx.doi.org/10.26456/vtchem2020.3.4.

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Анотація:
В данной статье представлены данные по физико-химическому исследованию гетерогенного рутений содержащего катализатора Ru/СПС MN 100. Представлена важность таких исследование для изучения каталитических реакций, для установления возможного механизма реакции гидрирования, а так же как дополнения при кинетических исследованиях. В статье катализатор исследован методом низкотемпературной адсорбции азота, хемосорбции водорода, просвечивающей электронной микроскопии (ПЭМ) и рентгенофотоэлектронной спектроскопии (РФЭС). Метод низкотемпературной адсорбции азота позволил установить, что катализатор хара
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6

Григорьев, Максим Евгеньевич, Роман Викторович Бровко, and Евгений Олегович Долуда. "THE USE OF ULTRASOUND IN THE PREPARATION OF THE CATALYST Ru/HPS MN 100 AND ITS ACTIVITY IN THE PROCESS OF HYDROGENATION OF XYLOSE AND LACTOSE." Вестник Тверского государственного университета. Серия: Химия, no. 3(45) (October 18, 2021): 41–48. http://dx.doi.org/10.26456/vtchem2021.3.5.

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Анотація:
В работе рассмотрена возможность использование ультразвука при получении рутений содержащей каталитической системы Ru/СПС MN 100. Проведено кинетическое тестирование данного катализатора и сравнение его активности с таким же катализатором, но синтезированным без использования ультразвука, в процессе гидрирования ксилозы и лактозы до соответствующих полиолов - ксилита и лактита. Процесс гидрирования осуществлялся в реакторе периодического и непрерывного действия при оптимальных условиях (температуре, концентрации моно- и дисахарида, парциальном давлении водорода, скорости подачи водного раствор
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7

Ab Halim, Ahmad Zamani, Rusmidah Ali, and Wan Azelee Wan Abu Bakar. "Green Technology Purification of Nature Gas via CO2/H2 Methanation by Using Trimetallic Ru/Mn/Fe-Al2O3 Oxide Catalyst." Advanced Materials Research 1107 (June 2015): 85–90. http://dx.doi.org/10.4028/www.scientific.net/amr.1107.85.

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Анотація:
The presence high content of carbon dioxide (CO2) and hydrogen sulphide (H2S) in crude natural gas which can block cryogenic equipments and favours steel-pipes corrosion thus will decrease the quality of the natural gas. Therefore, there is need to treat sour to sweet natural gas by using green technology via catalytic methanation reaction by converting CO2 to methane gas. Using waste to wealth concept, production of methane would increase as well as creating environmental friendly approach for purification of natural gas. In this work, the investigations of new trimetallic Ru/Mn/Fe-Al2O3 oxid
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8

Rosid, Salmiah Jamal Mat, Azman Azid, Aisyah Fathiah Ahmad, et al. "Optimization and physicochemical studies of alumina supported samarium oxide based catalysts using artificial neural network in methanation reaction." Environmental Engineering Research 28, no. 1 (2022): 210455–0. http://dx.doi.org/10.4491/eer.2021.455.

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Анотація:
Developed countries are increasing their demand for natural gas as it is an industrial requirement for fuel transportation. Most of modern society relies heavily on vehicles. However, the presence of CO2 gas has led to the categorization of sour natural gas which reduces the quality and price of natural gas. Therefore, the catalytic methanation technique was applied to convert carbon dioxide (CO2) to methane (CH4) gas and reduce the emissions of CO2 within the environment. In this study, samarium oxide supported on alumina doped with ruthenium and manganese was synthesized via wet impregnation
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9

Manaenkov, Oleg V., Olga V. Kislitsa, Ekaterina A. Ratkevich, and Mikhail G. Sulman. "MAGNETICALLY RECOVERABLE POLYMER CATALYST FOR CELLULOSE HYDROGENOLYSIS." IZVESTIYA VYSSHIKH UCHEBNYKH ZAVEDENII KHIMIYA KHIMICHESKAYA TEKHNOLOGIYA 63, no. 2 (2020): 59–63. http://dx.doi.org/10.6060/ivkkt.20206302.6062.

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Анотація:
A new type of Ru-containing magnetically recoverable catalyst based on a polymer matrix of hypercrosslinked polystyrene (HPS) for the reaction of the hydrogenolysis of microcrystalline cellulose to ethylene and propylene glycol (EG and PG) is proposed. The catalyst is synthesized sequentially in two stages. At the first stage, by means of thermal decomposition of iron (III) salts in the presence of polyols, magnetite particles (Fe3O4) are formed in the pores of the HPS. At the second stage, Ru-containing nanoparticles of the active phase of the catalyst are synthesized on the surface of Fe3O4/
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10

Manaenkov, Oleg, Yuriy Kosivtsov, Valentin Sapunov, et al. "Kinetic Modeling for the “One-Pot” Hydrogenolysis of Cellulose to Glycols over Ru@Fe3O4/Polymer Catalyst." Reactions 3, no. 1 (2021): 1–11. http://dx.doi.org/10.3390/reactions3010001.

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Анотація:
Despite numerous works devoted to the cellulose hydrogenolysis process, only some of them describe reaction kinetics. This is explained by the complexity of the process and the simultaneous behavior of different reactions. In this work, we present the results of the kinetic study of glucose hydrogenolysis into ethylene- and propylene glycols in the presence of Ru@Fe3O4/HPS catalyst as a part of the process of catalytic conversion of cellulose into glycols. The structure of the Ru-containing magnetically separable Ru@Fe3O4/HPS catalysts supported on the polymeric matrix of hypercrosslinked poly
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11

Kok, David Hong Kian, Raja Kamarulzaman Raja Ibrahim, Susilawati Toemen, and Mohd Bakri Bakar. "The catalytic efficiency of Ru/Mn/Ce-Al2O3 in the reduction of HCN in dry methane reforming with CO2 assisted by non-thermal plasma." Journal of Physics: Conference Series 2432, no. 1 (2023): 012011. http://dx.doi.org/10.1088/1742-6596/2432/1/012011.

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Анотація:
Abstract This study investigates the catalytic activity of Ru/Mn/Ce-Al2O3 in eliminating HCN via dry reforming CH4 with CO2 in the packed-bed dielectric barrier discharge non-thermal plasma (DBD NTP). A packed bed DBD configuration method was carried out in the non-thermal plasma with Ru/Mn/Ce-Al2O3 catalyst, whereby BaTiO3 beads was the dielectric medium. The carrier gas for dry methane reforming was N2, the peak-to-peak voltage was 24 kV and the total flow rate was 100 sccm with a ratio of 5:5:90 (CH4:CO2:N2), respectively. Gaseous products and by-products were analysed by Fourier transform
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12

Deng, Mengting, Yulong Tang, Zhiyi Lu, Yunan Wang, and Yichao Lin. "Self–Supporting Mn–RuO2 Nanoarrays for Stable Oxygen Evolution Reaction in Acid." Molecules 28, no. 23 (2023): 7727. http://dx.doi.org/10.3390/molecules28237727.

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Анотація:
Currently, the process of an acidic oxygen evolution reaction (OER) necessitates the use of Iridium dioxygen (IrO2), which is both expensive and incredibly scarce on Earth. Ruthenium dioxygen (RuO2) offers high activity for acidic OERs and presents a potential substitution for IrO2. Nevertheless, its practical application is hindered by its relatively poor stability. In this study, we have developed Mn–doped RuO2 (Mn–RuO2) nanoarrays that are anchored on a titanium (Ti) mesh utilizing a two–step methodology involving the preparation of MnO2 nanoarrays followed by a subsequent Ru exchange and a
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13

Mat Rosid, Salmiah Jamal, Wan Azelee Wan Abu Bakar, and Rusmidah Ali. "Catalytic CO2/H2 Methanation Reaction over Alumina Supported Manganese/Cerium Oxide Based Catalysts." Advanced Materials Research 1107 (June 2015): 67–72. http://dx.doi.org/10.4028/www.scientific.net/amr.1107.67.

Повний текст джерела
Анотація:
The methanation reaction is a promising method for the purification of natural gas, in which the acid gases of CO2,is eliminated by catalytic conversion. The advantage of catalytic technology is the utilization of CO2present in the production of methane gas. The used of alumina supported cerium oxide as the based catalyst in CO2/H2methanation reaction have been investigated in this research by using manganese as the dopant and ruthenium as the co-dopantviawet impregnation technique. The series of cerium oxide catalysts were calcined at 400 °C for 5 hours had been prepared at the screening stag
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14

Burelo, Manuel, Selena Gutiérrez, Cecilia D. Treviño-Quintanilla, Jorge A. Cruz-Morales, Araceli Martínez, and Salvador López-Morales. "Synthesis of Biobased Hydroxyl-Terminated Oligomers by Metathesis Degradation of Industrial Rubbers SBS and PB: Tailor-Made Unsaturated Diols and Polyols." Polymers 14, no. 22 (2022): 4973. http://dx.doi.org/10.3390/polym14224973.

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Анотація:
Biobased hydroxyl-terminated polybutadiene (HTPB) was successfully synthesized in a one-pot reaction via metathesis degradation of industrial rubbers. Thus, polybutadiene (PB) and poly(styrene-butadiene-styrene) (SBS) were degraded via metathesis with high yields (>94%), using the fatty alcohol 10-undecen-1-ol as a chain transfer agent (CTA) and the second-generation Grubbs–Hoveyda catalyst. The identification of the hydroxyl groups (-OH) and the formation of biobased HTPB were verified by FT-IR and NMR. Likewise, the molecular weight and properties of the HTPB were controlled by changing t
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15

Sadykov, Vladislav, Natalia Mezentseva, Vladimir Usoltsev, et al. "Metal Supported SOFC on the Gradient Permeable Metal Foam Substrate." Advanced Materials Research 123-125 (August 2010): 1083–86. http://dx.doi.org/10.4028/www.scientific.net/amr.123-125.1083.

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Анотація:
Gradient permeable metallic substrate material consisting of two layers of NiAl alloy was developed for the SOFC design. The open-cell foam layer (thickness 1-2 mm, cell density 60 ppi) provides the structure robustness, while a thin (100-200 μm) mesoporous layer facilitates supporting functional layers. Cathode layers (LSM, LSFN and their nanocomposites with GDC or YSZ) and anode layers (NiO/YSZ, NiO/YSZ +Ru/Ln-Sr-Mn-Cr-O nanocomposite catalyst) were deposited by slip casting, electrophoretic deposition or air brushing. Thin (5-10 μm) YSZ layer was deposited by MO CVD. Power density up to 550
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16

Morimitsu, Masatsugu. "Kinetics of Oxygen Catalyst Based on Pyrochlore Oxide Nano-Particles for Low Temperature Water Electrolysis." ECS Meeting Abstracts MA2024-01, no. 34 (2024): 1797. http://dx.doi.org/10.1149/ma2024-01341797mtgabs.

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Анотація:
Alkaline water electrolysis is carried out at 60 to 80 oC using nickel-based electrode materials and highly concentrated KOH solutions, which make highly corrosive environment against the electrodes, the separator, the current collector, and the others of the cell. Reduction in operating temperature would be preferable to suppress corrosion, although it would also make the catalytic activity for OER and HER down, making the cell voltage up. Since oxygen evolution is known as a high overpotential reaction which is more than 400 mV with nickel-based oxides at 60 oC or more, and alternative mater
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17

Todoroki, Naoto, Naomi Naraki, and Toshimasa Wadayama. "Enhanced Oxygen Evolution Activity and Stability of RuO2(110) Surface by Ti Doping." ECS Meeting Abstracts MA2023-02, no. 42 (2023): 2058. http://dx.doi.org/10.1149/ma2023-02422058mtgabs.

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Анотація:
Introduction Developing highly active and durable electrocatalysts for the oxygen evolution reaction (OER) is essential for efficient hydrogen production through polymer electrolyte membrane water electrolysis (PEMWE). Although RuO2 exhibits the highest OER activity among pure transition metal oxide catalysts, its low durability hampers its practical application as an OER catalyst for PEMWE. Recent studies have shown that the incorporation of dissimilar metal elements, such as Ni, Mn, and Cu, effectively enhances the OER activity and stability of RuO2 in acidic electrolytes (1-3). In this stud
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18

Chen, Wei, Changyi Xu, Huizhen Yu, et al. "Hydroxyl Spillover Activated from the Strongly Coupled Ru@Mn3O4 Heterostructure to Promote Alkaline Hydrogen Evolution." Angewandte Chemie International Edition, May 14, 2025. https://doi.org/10.1002/anie.202504667.

Повний текст джерела
Анотація:
Alkaline hydrogen evolution reaction (HER) has great potential in practical hydrogen production. However, constructing an excellent catalyst with advantages of both superior water dissociation ability and easy OH* desorption remains urgently needed and yet challenging for the alkaline HER. Herein, superior water dissociation process, facile OH* desorption, and optimized H adsorption are realized on a strongly coupled heterostructure of Ru@Mn3O4, in which Ru clusters are decorated on Mn3O4 via Ru–O–Mn bonds. The highly oxophilic Mn3O4 facilitates the water dissociation, while the formed hetero‐
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19

Chen, Wei, Changyi Xu, Huizhen Yu, et al. "Hydroxyl Spillover Activated from the Strongly Coupled Ru@Mn3O4 Heterostructure to Promote Alkaline Hydrogen Evolution." Angewandte Chemie, May 14, 2025. https://doi.org/10.1002/ange.202504667.

Повний текст джерела
Анотація:
Alkaline hydrogen evolution reaction (HER) has great potential in practical hydrogen production. However, constructing an excellent catalyst with advantages of both superior water dissociation ability and easy OH* desorption remains urgently needed and yet challenging for the alkaline HER. Herein, superior water dissociation process, facile OH* desorption, and optimized H adsorption are realized on a strongly coupled heterostructure of Ru@Mn3O4, in which Ru clusters are decorated on Mn3O4 via Ru–O–Mn bonds. The highly oxophilic Mn3O4 facilitates the water dissociation, while the formed hetero‐
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20

Wan Abu Bakar, Wan Azelee, Salmiah Jamal Mat Rosid, and Rusmidah Ali. "Methanation Reaction over Samarium Oxide Based Catalysts." Malaysian Journal of Fundamental and Applied Sciences 9, no. 1 (2013). http://dx.doi.org/10.11113/mjfas.v9n1.78.

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Анотація:
Malaysia produces an acidic crude natural gas which contains 23% of CO2 and <1% of H2S. Thu their presence will corrode the carbon steel gas pipeline system, thus resulting decreasing quality and price of natural gas as well as pollute the environment. Instead, using catalysts for the CO2 methanation have been extensively studied and high potentiality towards converting CO2 gas to methane. The potential of samarium has been widely explored for their ability as a dopant catalyst for CO2 methanation from researchers for metal oxide in CO2 methanation. However, the potential of samarium as a b
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21

Huang, Qi, Wenhao Yang, Yingying Yan, et al. "Regulation of d‐Band Center of Ruthenium Sites via Electronic Complementary Effect of C60 Fullerene Molecules and Manganese Atoms for Efficient Alkaline Hydrogen Evolution." Advanced Functional Materials, July 7, 2024. http://dx.doi.org/10.1002/adfm.202409406.

Повний текст джерела
Анотація:
AbstractDeveloping advanced electrocatalysts is crucial for alkaline hydrogen evolution reaction (HER). A balance in adsorption energy for each reaction intermediate on the catalyst determines the overall catalytic rate. This balance is closely linked to the d‐band center, which is, in turn, controlled by the electronic structure of the active sites. Herein, C60 molecules with electron‐withdrawing properties and manganese (Mn) atoms with electron‐donating properties to drive charge redistribution on Ru active sites are strategically utilized. The synergistic and complementary effects of C60 an
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22

Li, Zonglin, Haoyun Sheng, Yichao Lin, et al. "Rutile‐Structured Ru0.48Mn0.52O2 Solid Solution for Highly Active and Stable Oxygen Evolution at Large Current Density in Acidic Media." Advanced Functional Materials, July 14, 2024. http://dx.doi.org/10.1002/adfm.202409714.

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Анотація:
AbstractThe development of active, stable, and cost‐effective electrocatalysts for the oxygen evolution reaction (OER) in acidic media is crucial for proton‐exchange‐membrane water electrolysis. Inspired by theoretical screening on a series of transition metal incorporated RuO2 systems, a low Ru‐content solid solution oxide (Ru0.48Mn0.52O2) achieved is fabricated by a simple two‐step synthesis method through the combination of rutile RuO2 and β‐MnO2. The Ru0.48Mn0.52O2 catalyst exhibits an exceptionally low overpotential of 154 mV at 10 mA cm−2 and maintains a high stability under a high curre
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23

Price, Robert, Holger Bausinger, Gino Longo, et al. "Development and full system testing of novel co‐impregnated La0.20Sr0.25Ca0.45TiO3 anodes for commercial combined heat and power units." Fuel Cells, November 28, 2023. http://dx.doi.org/10.1002/fuce.202300033.

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Анотація:
AbstractOver the past decade, the University of St Andrews and HEXIS AG have engaged in a highly successful collaborative project aiming to develop and upscale La0.20Sr0.25Ca0.45TiO3 (LSCTA‐) anode “backbone” microstructures, impregnated with Ce0.80Gd0.20O1.90 (CG20) and metallic electrocatalysts, providing direct benefits in terms of performance and stability over the current state‐of‐the‐art (SoA) Ni‐based cermet solid oxide fuel cell (SOFC) anodes.Here, we present a brief overview of previous work performed in this research project, including short‐term, durability, and poison testing of sm
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