Articles with "hydrothermal aging" as a keyword



Effects of hydrothermal aging at high and low temperatures on the selective catalytic reduction of NOx with NH3 over Cu/SAPO-34

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Published in 2019 at "Research on Chemical Intermediates"

DOI: 10.1007/s11164-018-03712-0

Abstract: Effects of hydrothermal aging at 80 and 850 °C on catalytic performance and stability of Cu/SAPO-34 catalysts with different Cu loadings were examined, and their catalytic activities were investigated for the selective catalytic reduction (SCR) of… read more here.

Keywords: catalytic reduction; selective catalytic; sapo; hydrothermal aging ... See more keywords

Effect of Hydrothermal Aging over a Commercial DOC on NO2 Production and Subsequent SCR Efficiency

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Published in 2018 at "International Journal of Automotive Technology"

DOI: 10.1007/s12239-018-0091-3

Abstract: In this study, the effect of hydrothermal aging over a commercial diesel oxidation catalyst (DOC) on deterioration in nitrogen dioxide (NO2) production activity has been experimentally investigated based on a micro-reactor DOC experiment. Through this… read more here.

Keywords: scr; doc; no2 production; effect ... See more keywords

Effects of hydrothermal aging on carbon fibre/epoxy composites with different interfacial bonding strength

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Published in 2018 at "Construction and Building Materials"

DOI: 10.1016/j.conbuildmat.2017.11.171

Abstract: Abstract This paper presents an investigation on the effects of hydrothermal aging on carbon fibre reinforced polymer (CFRP) composites with different interfacial bonding strength. The combination of electrochemical oxidation and sizing treatments effectively enhanced the… read more here.

Keywords: strength; fibre; aging carbon; fibre epoxy ... See more keywords
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Silica infiltration in partially stabilized zirconia: Effect of hydrothermal aging on mechanical properties.

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Published in 2020 at "Journal of the mechanical behavior of biomedical materials"

DOI: 10.1016/j.jmbbm.2020.103774

Abstract: It aimed to evaluate if silica infiltration might influence the hydrothermal degradation of zirconia by determining: the phases formed, hardness, microstructure, and flexural strength of a 3Y-TZP. Yttria partially stabilized zirconia discs (1.2 mm thickness x… read more here.

Keywords: partially stabilized; silica infiltration; infiltration; stabilized zirconia ... See more keywords

Effects of hydrothermal aging on the water uptake and tensile properties of PHB/flax fabric biocomposites

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Published in 2017 at "Polymer Degradation and Stability"

DOI: 10.1016/j.polymdegradstab.2017.06.003

Abstract: This research analyses the effect of hydrothermal aging on the water uptake and mechanical performance of biocomposites based on a polyhydroxyalkanoate matrix and flax fibre reinforcement in the form of nonwoven (NW) fabrics. The effectiveness… read more here.

Keywords: water; aging water; tensile properties; hydrothermal aging ... See more keywords

Hydrothermal Aging Alleviates the Phosphorus Poisoning of Cu-SSZ-39 Catalysts for NH3-SCR Reaction.

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Published in 2023 at "Environmental science & technology"

DOI: 10.1021/acs.est.2c08876

Abstract: As a new type of catalyst with the potential for commercial application in NOx removal from diesel engine exhausts, Cu-SSZ-39 catalysts must have excellent resistance to complex and harsh conditions. In this paper, the effects… read more here.

Keywords: phosphorus poisoning; hydrothermal aging; low temperature; aging treatment ... See more keywords

Interface Induced by Hydrothermal Aging Boosts the Low-Temperature Activity of Cu-SSZ-13 for Selective Catalytic Reduction of NOx.

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Published in 2024 at "Environmental science & technology"

DOI: 10.1021/acs.est.4c04101

Abstract: Hitherto, sulfur poisoning and hydrothermal aging have still been the challenges faced in practical applications of the Cu-SSZ-13 catalyst for the selective catalytic reduction (SCR) of NOx from diesel engine exhaust. Here, we elaborately design… read more here.

Keywords: temperature; catalytic reduction; boosts low; selective catalytic ... See more keywords

Transformation of Active Sites in Fe/SSZ-13 SCR Catalysts during Hydrothermal Aging: A Spectroscopic, Microscopic, and Kinetics Study

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Published in 2017 at "ACS Catalysis"

DOI: 10.1021/acscatal.6b03679

Abstract: Fe/SSZ-13 catalysts (Si/Al = 12, Fe loadings of 0.37% and 1.20%) were prepared via solution ion-exchange, and they were hydrothermally aged at 600, 700, and 800 °C. The fresh and aged catalysts were characterized with… read more here.

Keywords: active sites; scr catalysts; ssz scr; transformation active ... See more keywords
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Effects of electrical-hydrothermal aging degradation on dielectric and trap properties of high temperature vulcanized silicone rubber materials

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Published in 2020 at "RSC Advances"

DOI: 10.1039/d0ra00134a

Abstract: In this paper, a new aging platform combined the high voltage electric field and the hydrothermal environment was built. To investigate the aging mechanism, physicochemical, dielectric and trap properties of HTV SR before and after… read more here.

Keywords: degradation; trap properties; dielectric trap; electrical hydrothermal ... See more keywords

Experimental investigation on low-velocity-impact and post-impact-tension behaviors of GFRP T-joints after hydrothermal aging

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Published in 2024 at "e-Polymers"

DOI: 10.1515/epoly-2024-0092

Abstract: Abstract As an integrated structural unit, composite T-joints are used to transfer the load between two vertical planes, such as the wing box of an aircraft. The article aims to investigate the failure mechanism of… read more here.

Keywords: hydrothermal aging; gfrp joints; impact tension; impact ... See more keywords

Role of Vanadium in Thermal and Hydrothermal Aging of a Commercial V2O5-WO3/TiO2 Monolith for Selective Catalytic Reduction of NOx: A Case Study

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Published in 2024 at "Catalysts"

DOI: 10.3390/catal14040241

Abstract: In recent years, increased attention to air pollutants such as NOx has led the scientific community to focus meaningfully on developing strategies for NOx reduction. Selective catalytic reduction of NOx by ammonia (NO SCR by… read more here.

Keywords: catalytic reduction; selective catalytic; hydrothermal aging; reduction nox ... See more keywords