Agenparl

catalysts

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SYNERGISTIC EFFECTS OF OXYGEN VACANCIES AND THE CHELATION OF TETRACYCLINE WITH METALLIC IONS FOR ENHANCED DEGRADATION OF TETRACYCLINE OVER PHOTOCATALYSTS LA2−XKXNIMNO6

Redazione
(AGENPARL) – LONDON (UNITED KINGDOM), sab 23 gennaio 2021 Oxygen vacancies (OVs) can trap photogenerated electrons (e−) to promote the separation of photogenerated e− and holes (h+), and can serve as reactive sites in a variety of catalytic reactions, which benefits the photocatalytic activity of materials. In this study, doping......
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CATALYST OFFERS LOW TEMPERATURE ROUTE TO PRODUCE HYDROGEN

Redazione
(AGENPARL) – CAMBRIDGE (UNITED KINGDOM), sab 23 gennaio 2021 An effective, stable catalyst that works just above room temperature can turn water and carbon monoxide into a stream of pure hydrogen and carbon dioxide.1 The development of a catalyst that works at much lower temperatures could be a boost for......
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FULLY RECYCLABLE BRøNSTED ACID CATALYST SYSTEMS

Redazione
(AGENPARL) – LONDON (UNITED KINGDOM), gio 21 gennaio 2021 Homogeneous and heterogeneous sulfonic acid catalysts are some of the most common catalysts used in organic chemistry. This work explores an alternative scheme using a fully recyclable polymeric solvent (a poly-α-olefin (PAO)) and soluble PAO-anchored polyisobutylene (PIB)-bound sulfonic acid catalysts. This......
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RECENT ADVANCES IN UNDERSTANDING OXYGEN EVOLUTION REACTION MECHANISMS OVER IRIDIUM OXIDE

Redazione
(AGENPARL) – LONDON (UNITED KINGDOM), lun 18 gennaio 2021 Water electrolysis driven by renewable energy can produce clean hydrogen, but its efficiency remains low, in part because of slow kinetics at the anode for the oxygen evolution reaction (OER). Learning from the most active catalysts for the OER, iridium oxides,......
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ENGINEERING ATOMIC ARRANGEMENT OF BIMETALLIC CATALYSTS FOR ELECTROCHEMICAL CO2 REDUCTION

Redazione
(AGENPARL) – LONDON (UNITED KINGDOM), mar 12 gennaio 2021 Electrochemical reduction of CO2 into highly-valued chemicals is an efficient solution to tackle the environmental issues associated with excessive CO2 emissions. The multi-proton/electron transfer processes and comparable adsorption energies of complex reaction intermediates during the CO2 reduction reaction (CO2RR), however, make......
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SHIFTING THE SCALING RELATIONS OF SINGLE-ATOM CATALYSTS FOR FACILE METHANE ACTIVATION BY TUNING THE COORDINATION NUMBER

Redazione
(AGENPARL) – LONDON (UNITED KINGDOM), mar 12 gennaio 2021 We investigate oxidative methane activation on a wide range of single transition metal atom catalysts embedded on N-doped graphene derivatives using density functional theory calculations. An inverse scaling relationship between the *O formation and its hydrogen affinity is observed, consistent with......
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CONVERSION OF CO2 AND SMALL ALKANES TO PLATFORM CHEMICALS OVER MO2C-BASED CATALYSTS

Redazione
(AGENPARL) – LONDON (UNITED KINGDOM), mar 12 gennaio 2021 The performance of Mo2C-based catalysts in CO2 assisted oxidative dehydrogenation of ethane (CO2-ODH) were evaluated. Mo2C on SiO2 was synthesized via three different techniques: wet impregnation (WI), hybrid nanocrsytal technique (HNC) and sol-gel method (SG) and exposed to the same carburization......
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THE EFFECT OF CALCIUM DOPANT ON ACTIVITY AND SELECTIVITY OF GOLD CATALYSTS SUPPORTED ON SBA-15 AND NB-CONTAINING SBA-15 IN METHANOL OXIDATION

Redazione
(AGENPARL) – LONDON (UNITED KINGDOM), lun 11 gennaio 2021 Gold catalysts based on SBA-15 and niobium-containing SBA-15 (NbSBA-15 to which niobium was introduced in one pot synthesis, and Nb2O5/SBA-15 prepared by post-synthesis impregnation of SBA-15) were doped with calcium species introduced before Au loading and were tested in gas-phase methanol......
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PHOTOTHERMAL CATALYSTS FOR HYDROGENATION REACTIONS

Redazione
(AGENPARL) – LONDON (UNITED KINGDOM), lun 11 gennaio 2021 Hydrogenation reactions are an important process in today’s chemical industry. Typically, hydrogenation reactions involve the removal of an unsaturated bond in olefins or other polyenes via thermal catalysis using hydrogen. As hydrogenation reactions are often carried out at temperatures up to......
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SYNTHESIS OF SMALL NI-CORE–AU-SHELL CATALYTIC NANOPARTICLES ON TIO2 BY GALVANIC REPLACEMENT REACTION

Redazione
(AGENPARL) – LONDON (UNITED KINGDOM), sab 09 gennaio 2021 We report the first preparation of small gold–nickel (AuNi) bimetallic nanoparticles (<5 nm) supported on titania by the method of galvanic replacement reaction (GRR), evidenced by the replacement of Ni atoms by Au atoms according to the stoichiometry of the reaction.......

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