Related references
Note: Only part of the references are listed.
Article
Chemistry, Applied
Jie Deng et al.
Summary: Ceria-zirconia based (CZ) materials are important for three-way catalysts (TWCs). The CZ material with k-Ce2Zr2O8 phase shows excellent oxygen storage capacity and is considered a promising material for TWCs. The surface Ce/Zr ratio affects the formation of k-Ce2Zr2O8 and the performance of Pd-only three-way catalysts. The stability of k-Ce2Zr2O8 influences the proportions of Ce3+ and oxidized palladium (Pd delta++Pd2+), and Pd/M0.33RO exhibits the best catalytic performance due to the presence of stable k-Ce2Zr2O8.
JOURNAL OF RARE EARTHS
(2023)
Article
Environmental Sciences
Changlong Zheng et al.
Summary: In this study, two nanosized MnO2 catalysts with different phase structures and potassium loaded MnO2 catalysts with varying K loading amounts were prepared. The catalytic activity for soot oxidation was found to be highly dependent on the K loading amount and the phase structure of MnO2.
JOURNAL OF ENVIRONMENTAL SCIENCES
(2023)
Article
Chemistry, Physical
Jiabao Li et al.
Summary: Researchers have developed a three-dimensional cross-linked heterostructure with one-dimensional amorphous potassium titanate nanobelts grown on two-dimensional titanium carbide nanosheets, which improves the low-temperature performance of sodium-ion batteries.
JOURNAL OF COLLOID AND INTERFACE SCIENCE
(2023)
Article
Chemistry, Physical
Peng Zhang et al.
Summary: Atomically dispersed manganese sites were fabricated on well-defined alpha-Fe2O3 nanosheets through a ligand-assisted in-situ crystallization method. The Mn1Fe2O3-10 catalyst exhibited superior catalytic performance, with efficient soot purification through the NO2-assisted oxidation mechanism.
APPLIED CATALYSIS B-ENVIRONMENTAL
(2023)
Article
Engineering, Environmental
Shipeng Wu et al.
Summary: In this study, a Mn1ZrxOy mixed oxide catalyst was developed through Zr doping for low-temperature catalytic oxidation of propane. The results showed that Zr doping significantly enhanced the catalytic activity of MnO2, as it led to higher redox ability and oxygen mobility, more oxygen vacancies, and enhanced acidity.
CHEMICAL ENGINEERING JOURNAL
(2023)
Article
Engineering, Environmental
Xin Tong et al.
Summary: Efficient NOx elimination was achieved using a flame spray pyrolysis method to establish dual active sites in a catalyst, leading to almost complete conversion of NO into N2 at low temperatures without the need for noble metals.
CHEMICAL ENGINEERING JOURNAL
(2023)
Article
Materials Science, Ceramics
Chaoqian Ai et al.
Summary: Mullite whiskers were prepared on the wall of cordierite honeycomb ceramics to form a hierarchical microstructure. Co/CZ@M/C sample exhibited good structural stability and stable catalytic performance, showing potential application in the diesel particulate filter field.
CERAMICS INTERNATIONAL
(2022)
Article
Energy & Fuels
Di Yu et al.
Summary: In this study, a series of CenMnOx catalysts with different Ce contents and calcination temperatures were successfully synthesized via a simple hydrothermal process. It was found that the Ce-doped Ce1MnOx amorphous catalysts exhibited better ability to activate oxygen species and stability for catalytic combustion of soot particles. These catalysts show promise for application in soot combustion due to their simple preparation, low cost, and good catalytic performance.
Article
Engineering, Chemical
Yu-Chih Tsai et al.
Summary: The study developed hierarchically structured CeO2 nanofibers from Ce-MOFs as a catalyst for soot oxidation, showing higher catalytic activity and lower ignition temperature compared to commercial CeO2 nanoparticles. The catalyst effectively converts soot to CO2 and exhibits recyclability with low ignition temperature.
SEPARATION AND PURIFICATION TECHNOLOGY
(2022)
Article
Thermodynamics
Zhengzheng Yang et al.
Summary: A micrometer scaled sheet-type CeO2-ZrO2 catalyst has been developed to improve catalytic diesel soot combustion performance by enhancing solid(catalyst)-solid(soot) contact efficiency.
COMBUSTION AND FLAME
(2022)
Article
Materials Science, Ceramics
Zahra Shamohammadi Ghahsareh et al.
Summary: This study investigates the effect of CeO2 on the crystallization behavior, microstructural features, and mechanical and chemical properties of canasite glass-ceramics for dental applications. The results show that the addition of CeO2 slightly increases the crystallization temperatures and significantly decreases the thermal expansion coefficients of the starting glasses. Raman spectroscopy results confirm that CeO2 enhances the network connectivity of the glasses. The presence of CeO2 favors the crystallization of miserite, calcium fluoride, and canasite crystalline phases. Canasite crystals exhibit an inter-locked blade-like morphology while miserite crystals have a cubic-like morphology. Base-C-2 demonstrates the highest chemical durability and acceptable mechanical properties as a restorative dental material.
CERAMICS INTERNATIONAL
(2022)
Article
Energy & Fuels
Zhanming Chen et al.
Summary: The experimental study found that adding methane and water injection can effectively reduce nitrogen oxide and particle emissions, but increase carbon monoxide and hydrocarbon emissions.
Article
Energy & Fuels
Yunxi Shi et al.
Summary: This study regenerated diesel particulate filters at a low temperature using a nonthermal plasma injection system and analyzed the changes in the characteristics of deposited particles during the regeneration process. The results showed that nonthermal plasma could oxidize and decompose the deposited particles, resulting in their removal. Significant changes in the morphology and chemical properties of the particles occurred during the regeneration process, along with an improvement in the oxidation activity of the particulate matter.
Article
Energy & Fuels
Usame Demir et al.
Summary: This study investigates the effects of using commercial AdBlue, urea-pure water mixture, and urea-pure water-citric acid mixture as additives to diesel fuel on exhaust emission and performance in a diesel engine. The results show that the addition of urea-citric acid-water mixtures worsened combustion, while the addition of AdBlue increased CO2 emissions.
Review
Chemistry, Applied
Sheikh Muhammad Farhan et al.
Summary: Vehicle emissions play a significant role in environmental pollution, particularly in particulate emissions. Research on post-injection strategies in diesel engines shows that it can improve combustion efficiency, reduce emissions of particulate matter, hydrocarbons, and carbon monoxide.
FUEL PROCESSING TECHNOLOGY
(2022)
Article
Chemistry, Applied
Yi Zhu et al.
Summary: Constructing bimetallic catalysts of cerium and manganese with excellent catalytic performance for soot combustion is currently a research frontier. Experimental results show that the catalytic activity increases first and then decreases with the increase of manganese content within a certain range. The key factors for catalytic activity are the easily reducible and highly dispersed surface manganese oxide species, as well as the contact performance of the external surface, when the adsorbed surface oxygen, lattice oxygen, specific surface area, and total reduction amount of the catalysts reach a certain value.
JOURNAL OF RARE EARTHS
(2022)
Article
Chemistry, Applied
Bin Yang et al.
JOURNAL OF RARE EARTHS
(2022)
Article
Engineering, Environmental
Yan Cao et al.
Summary: In this study, biodiesel was produced from waste edible oil using MgO and MgO@CNT@K2CO3 catalysts. The catalysts demonstrated high catalytic activity and mesoporous structures. The two-step transesterification process resulted in high biodiesel yields. The produced biodiesel met the relevant standards, indicating good quality. The MgO@CNT@K2CO3 catalyst showed potential industrial application for biodiesel production from waste edible oil.
PROCESS SAFETY AND ENVIRONMENTAL PROTECTION
(2022)
Article
Chemistry, Physical
Yi Yang et al.
Summary: This study successfully synthesized a series of Mn-Ce catalysts and investigated their catalytic oxidation performance on diesel engine soot. The results showed that Mn-Ce catalysts exhibited better catalytic promotion on soot combustion, especially in NO atmosphere. The weight ratio of soot to the MC-0.40 catalyst in the range of 1:9-1:13 was found to enhance the combustion of soot. However, the presence of ashes during the reaction process had adverse effects on the catalyst performance, reducing the combustion efficiency of soot.
MOLECULAR CATALYSIS
(2022)
Article
Energy & Fuels
Peng Zhang et al.
Summary: The study successfully synthesized hexagonal NiO nanosheet catalysts decorated with non-noble metals, and found that the cooperative effect between surface heteroatoms and adjacent Ni atoms is important for carbon particle purification. Among them, Co-NiO catalyst exhibited the best catalytic performance and the lowest activation energy.
Article
Thermodynamics
Jianbin Luo et al.
Summary: In this study, a three-dimensional computational fluid dynamics model of a diesel engine cylinder was developed and a chemical reaction mechanism containing 53 species and 325 reactions was established. The effects of hydrogen addition on the performance, combustion, and emission characteristics of a dual-fuel engine were investigated. The results showed that hydrogen addition improved the engine performance, but slightly increased NOx emissions.
Article
Energy & Fuels
Yilin Zhang et al.
Summary: The presence of unsaturated cations in hydrotalcite-derived CoAl oxides is crucial for improving catalytic performance during soot combustion. By partially replacing cobalt with nickel in hydrotalcite-derived CoAl oxides, the surface area and active sites can be increased, leading to improved adsorption-activation properties for O-2 and NO. The synergistic effect of binary Co and Ni ions in hydrotalcite-derived Co2-xNixAlO catalysts greatly enhances catalytic activity for soot combustion.
Article
Chemistry, Physical
M. H. Dinesh et al.
Summary: This paper investigates the effects of hydrogen blending on internal combustion engine performance under variable compression ratio and different speeds. The results show that increasing compression ratio and hydrogen fraction can improve combustion and fuel efficiency, but it also leads to higher exhaust temperature and increased NOx emissions.
INTERNATIONAL JOURNAL OF HYDROGEN ENERGY
(2022)
Article
Chemistry, Physical
Changlong Zheng et al.
Summary: This study investigates the catalytic performance and thermal durability of Ru and Ag supported on CeO2 catalysts for soot oxidation. The results show that Ru/CeO2 catalyst exhibits high catalytic activity and strong thermal stability, which can be attributed to the strong interactions between Ru and CeO2.
JOURNAL OF CATALYSIS
(2022)
Article
Materials Science, Multidisciplinary
M.K. Shukla et al.
MATERIALS CHEMISTRY AND PHYSICS
(2022)
Article
Chemistry, Physical
A. Siva Kumar et al.
Summary: High-pressure materials science plays an important role in both academic and application areas, and dynamic shock waves have a significant impact similar to high-pressure experiments. This study reports the switchable phase transition of potassium nitrate single crystal under shocked conditions, which is evaluated using multiple techniques. The observed phase transition sequence is crystal-crystal-crystal-amorphous-crystal-glassy crystalline nature. This is the first report of amorphization in potassium nitrate considering both static pressure and temperature experiments. Due to the potential switching between crystalline and amorphous states, this material is suitable for applications in optical data storage and molecular switching.
SURFACES AND INTERFACES
(2022)
Article
Energy & Fuels
Alexandr Shkatulov et al.
Summary: This study investigates the modification of MgO with the triple eutectic mixture LiNO3-NaNO3-KNO3 in order to improve its decarbonation performance. The composites were comprehensively characterized and tested for their sorption properties. The results show that the material has high conversion rate, CO2 uptake, and excellent heat storage capacity at high temperatures.
JOURNAL OF ENERGY STORAGE
(2022)
Article
Environmental Sciences
Yunxi Shi et al.
Summary: The study revealed that the decomposition amount of PM decreases with an increase in temperature, with the highest decomposition amount observed at 80 degrees Celsius. The volume concentrations of DPF regeneration products were higher under variable temperature conditions, and regeneration occurred faster.
Article
Thermodynamics
Pan Wang et al.
Summary: The thermal gravimetric analysis and in-situ Fourier transform infrared spectrometer were used to evaluate the effects of metal oxide doping on the catalytic combustion performance of Ce-based catalysts. The results showed that K and Ag metal oxides improved the NOx synergistic oxidation performance, while Mn and Zr metal oxides had a negative impact. The doping ratio and hydrothermal aging time also influenced the combustion performance and NO2/NO ratio.
COMBUSTION AND FLAME
(2022)
Article
Energy & Fuels
Yazhou Nie et al.
Summary: This study focused on the co-combustion of agricultural and forestry residues, analyzing the combustion performance and emissions of mixed fuel pellets made of wood sawdust and peanut shell. The results showed that mixed fuel can improve combustion performance compared to wood sawdust alone, but it also increases nitrogen oxide emissions.
Article
Energy & Fuels
Hua Yang et al.
Summary: Highly active spinel-derived monolithic catalysts loading Ag (xAg/NiCo-NS) have been successfully synthesized and used for catalytic soot elimination. The metal-support interaction between Ag and NiCo-NS weakens the Co-O bond, increases the amount of surface oxygen vacancies, and improves the intrinsic activity of the catalyst. In addition, Ag can activate gaseous oxygen and promote the combustion of soot at low temperatures.
Article
Energy & Fuels
Zichuan Zhao et al.
Summary: This study investigates the effect of ash in biodiesel combustion particulate matter on the oxidation characteristics of carbon soot within a diesel particulate trap. The results show that doping with metal elements and metal salt species can increase the oxidation activity of the carbon soot, with sodium (Na) elements and nitrate having the greatest effect.
JOURNAL OF THE ENERGY INSTITUTE
(2022)
Article
Energy & Fuels
Chunmei Cao et al.
Summary: A series of potassium promoted transition metal oxide crossed nanosheets showed higher catalytic activity for soot oxidation, with KCo-NS performing the best. The interaction between potassium and transition metal oxides generated more oxygen vacancies and active oxygen species. Different catalysts displayed varying catalytic abilities under O-2/N-2 atmosphere or with the introduction of NO.
Article
Energy & Fuels
Jie Hu et al.
Summary: An integrated aftertreatment system consisting of DOC, CDPF, and SCR was proposed to reduce emissions from non-road diesel engines, showing little impact on engine performance and economic efficiency while significantly reducing CO, HC, NOx, PM, and PN emissions.
Article
Energy & Fuels
Qiang Liu et al.
Summary: A catalytic combustion approach using urchin-structured Fe2O3 microspheres supported potassium (K/Fe2O3 US) was developed for diesel soot elimination, showing superior activities with ignition temperatures at 300°C and 351°C for 10% and 50% conversion rates, respectively. The urchin structure improved the contact efficiency between catalyst and soot, while potassium loading increased active oxygen species for enhanced oxidation properties.
Article
Chemistry, Physical
Xenia Garcia et al.
Summary: Ceria nanoshapes with different crystallographic planes exhibited varying activity in carbon soot oxidation, with {110} and {100} facets being more active than {111}. Raman studies showed interaction between isolated graphene layers in carbon soot and ceria lattice oxygen atoms. Exposure to O2 generated surface active oxygen species which were highly reactive in oxidizing the graphitic structures of carbon soot.
Article
Energy & Fuels
Jishuang He et al.
Summary: Ce0.5Zr0.5O2 catalysts promoted by multivalent transition metal (Mn, Fe, Co) oxides were prepared to accelerate soot combustion. It was found that Mn and Co-doped catalysts significantly improved catalytic activity, while Fe-doped catalyst had a minor effect. Further characterization revealed that active oxygen species and oxygen vacancies played significant roles in enhancing soot combustion, especially for Mn and Co. Co-doped catalyst also exhibited excellent NO-NO2 conversion capacity, leading to reduced soot ignition temperature, whereas Fe-doped catalyst showed weaker NO oxidation performance due to abundant adsorbed carbonates.
Article
Chemistry, Physical
Di Yu et al.
Summary: This study successfully prepared two types of soot oxidation catalysts, which exhibited excellent performance in the presence of water, especially the birnessite-type K2Mn4O8 catalysts showed good tolerance for sulfur and water. The study also discovered the important role of interlayer gallery species ions (K+, H2O) in the catalytic activity of birnessite materials in soot combustion, which has not been recognized before.
APPLIED CATALYSIS B-ENVIRONMENTAL
(2021)
Article
Chemistry, Applied
Wei Wang et al.
Summary: CeO2 nano-cubes as the support of Ag/CeO2 exhibit higher activity in soot combustion, attributed to the presence of metallic state Ag and high concentration of oxygen vacancies. CeO2-R and CeO2-O show improvement as well, but still have limitations in oxygen activation and reaction pathway compared to CeO2-C.
Article
Materials Science, Ceramics
Yifan Du et al.
Summary: Potassium titanate whiskers synthesized on cordierite ceramics showed excellent catalytic performance in reducing the soot combustion temperature, with potential applications in diesel particulate filters. The unique microstructure with improved trapping ability could enhance the catalytic combustion efficiency of carbon in DPF systems.
CERAMICS INTERNATIONAL
(2021)
Article
Energy & Fuels
Min Zhang et al.
Summary: This study compared numerical simulations using LES and URANS models to understand the early soot evolution process in an n-dodecane spray flame. The results showed that LES could accurately capture the transient evolution of soot mass, including the soot spike phenomenon, which was not observed in the URANS simulations. The comparison provided insights into the mechanisms governing soot formation and oxidation processes.
Article
Chemistry, Physical
Peng Zhang et al.
Summary: The nanocatalysts of Ag nanoparticles coated on anatase TiO2-n% nanocrystals with co-exposed {1 0 1} and {0 0 1} facets show excellent catalytic activity during soot combustion, with the highest catalytic activity and lowest activation energy observed in Ag/TiO2-79% catalyst. The catalytic mechanism involves synergistic effects between coordinatively unsaturated Ti-5c and adjacent Ag atoms at the interface of TiO2-n% nanocrystal, boosting the key step of O-2 activation. This highlights an effective strategy for developing high-efficient catalysts through crystal facet engineering of metal oxides during oxidation reactions.
JOURNAL OF CATALYSIS
(2021)
Article
Chemistry, Analytical
Abolfazl Abbasi-Amandi et al.
Summary: This study successfully prepared black nickel coatings with high current efficiency and compact structure through optimization of electrodeposition conditions. Addition of imidazole can reduce grain size, decrease crack width, and enhance the corrosion resistance of black nickel coatings.
JOURNAL OF ELECTROANALYTICAL CHEMISTRY
(2021)
Article
Chemistry, Applied
Jing Xiong et al.
Article
Chemistry, Physical
N. Guillen-Hurtado et al.
APPLIED CATALYSIS A-GENERAL
(2020)
Article
Energy & Fuels
Jia Fang et al.
Article
Chemistry, Applied
Hailong Zhang et al.
FUEL PROCESSING TECHNOLOGY
(2020)
Article
Engineering, Environmental
Min June Kim et al.
JOURNAL OF HAZARDOUS MATERIALS
(2020)
Review
Thermodynamics
Magni Lapuerta et al.
PROGRESS IN ENERGY AND COMBUSTION SCIENCE
(2020)
Article
Chemistry, Physical
Xuelei Mei et al.
APPLIED CATALYSIS B-ENVIRONMENTAL
(2020)
Article
Thermodynamics
Zhiqiang Han et al.
Article
Energy & Fuels
Jia Fang et al.
JOURNAL OF THE ENERGY INSTITUTE
(2020)
Review
Engineering, Environmental
Neha et al.
JOURNAL OF ENVIRONMENTAL CHEMICAL ENGINEERING
(2020)
Article
Thermodynamics
Jia Fang et al.
APPLIED THERMAL ENGINEERING
(2019)
Article
Chemistry, Physical
Jae Hwan Lee et al.
APPLIED CATALYSIS B-ENVIRONMENTAL
(2019)
Article
Chemistry, Physical
Xin Wang et al.
APPLIED CATALYSIS B-ENVIRONMENTAL
(2019)
Article
Agricultural Engineering
Qianqian Lang et al.
BIORESOURCE TECHNOLOGY
(2019)
Article
Energy & Fuels
Huaqiang Chu et al.
JOURNAL OF THE ENERGY INSTITUTE
(2019)
Article
Energy & Fuels
Anna Trubetskaya et al.
Article
Thermodynamics
Xuebin Wang et al.
ENERGY CONVERSION AND MANAGEMENT
(2017)
Article
Chemistry, Physical
C. J. Tighe et al.
Article
Chemistry, Physical
Noelia Guillen-Hurtado et al.
APPLIED CATALYSIS B-ENVIRONMENTAL
(2015)
Article
Chemistry, Applied
Jinyong Luo et al.
Article
Engineering, Environmental
Claudia A. Neyertz et al.
CHEMICAL ENGINEERING JOURNAL
(2014)
