Synthesis and Characterization of Cerium Oxide Nanoparticles and Its Applicability as Fuel Catalyst

Sukumar, R. Sam; Rao, M. Muralidhara; Krishna, A. Murali

doi:10.1007/978-981-13-7643-6_51

Cited by 3 publications

(1 citation statement)

References 5 publications

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“…This self‐regeneration ability enables the unique catalytic properties of CeO 2 nanoparticles (CNPs). Therefore, CNPs are widely used in various industry fields, such as fuel‐borne catalysts, solar cells, gas sensors, and degradation of pollutants (Huang et al, 2018; Ma et al, 2017; Sukumar, Rao, & Krishna, 2019). In recent years, with the rapid development of nanomedicine, many research reports indicated that CNPs as nanozymes have widespread application value and development prospects in the field of medicine (Jiang et al, 2019; Xu, Lu, Huang, & Liu, 2019; Zhao et al, 2019).…”

Section: Introductionmentioning

confidence: 99%

Assessment of pulmonary toxicity of potential antioxidant drug PEGylated nanoceria after intratracheal instillation in rats

Qian

Zhang

Chen

et al. 2020

J of Applied Toxicology

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Cerium oxide (CeO2) nanoparticles have unique redox properties and exert excellent antioxidant effects in the biological environment. In recent years, many researchers have focused on the CeO2 nanoparticles as an effective antioxidant drug in the prevention and treatment of various diseases. However, the toxicity of CeO2 nanoparticles in vivo remains controversial and still needs intensive research. Therefore, the objective of this study is to investigate the pulmonary and systemic toxicity in rats after 14 days of exposure to the PEGylated CeO2 nanoparticles (abbreviated as CNPs; exposure dose of 2, 10, or 20 mg/kg) through a single intratracheal instillation (IT). We assessed the indicators of lung injury and the pathological damage degree of lung tissue. The bronchoalveolar lavage fluid (BALF) analysis and lung histopathology revealed the occurrence of slight pulmonary inflammation in the 20‐mg/kg experimental group rats. However, the inflammation factors in the lung tissue of every group rats did not significantly increase, and the levels of superoxide dismutase (SOD) and glutathione (GSH) in lung tissue homogenate rose considerably in the experimental groups. Collectively, these results indicated that pulmonary exposure by the high dose of CNPs could induce mild pulmonary inflammation but did not cause severe systemic toxicity. Moreover, we speculate that the mechanism of pulmonary toxicity of CNPs in rats was due to the autophagic death of healthy lung epithelial cells mediated by endoplasmic reticulum stress. Our results implicate that CNPs can be safely used as an antioxidant drug for the oxidative stress pulmonary diseases.

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Section: Introductionmentioning

confidence: 99%

Assessment of pulmonary toxicity of potential antioxidant drug PEGylated nanoceria after intratracheal instillation in rats

Qian

Zhang

Chen

et al. 2020

J of Applied Toxicology

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Towards sustainable Nanomaterials: Exploring green synthesis methods and their impact on electrical properties

Dhahri,

Shall,

Thabet Mliki

2024

Inorganic Chemistry Communications

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Emission and performance analysis of diesel engine running with CeO2 nanoparticle additive blended into castor oil biodiesel as a substitute fuel

Tamrat,

Ancha,

Gopal

et al. 2024

Sci Rep

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The implications of adding cerium oxide (CeO2) nanoparticles as a fuel additive to a castor oil biodiesel–diesel fuel blend on engine performance and emissions in a single-cylinder four-stroke diesel engine under various speed were examined in the current study. The test fuels used were fossil diesel fuels, B5 blend biodiesel (as 5% biodiesel and 95% diesel), B10 blend biodiesel (as 10% biodiesel and 90% diesel), B15 blend biodiesel (as 15% biodiesel and 85% diesel), B20 blend biodiesel (as 20% biodiesel and 80% diesel), and B25 blend biodiesel (as 25% biodiesel and 75% diesel), with cerium oxide (CeO2) nanoparticle additive (75 ppm). The result of the physio-chemical properties of the oil samples was within the limit of the ASTM standard. The addition of CeO2 nano additive to the biodiesel–diesel blends has demonstrated a significant reduction in emission and increased in engine performance for all biodiesel–diesel blends for the engine operating speed range. From the result B25 have the maximum reduction rate in BSFC and B10 have the minimum reduction rate in BSFC. The average maximum increment of thermal efficiency was 22.2% for B10 with CeO2 inclusion. CO emission increased as engine speed increased. HC emission was reduced for all blend, with and without CeO2 nano additions as speed increased. Maximum NOx emission was seen at the rated speed of 2700 rpm without nano additive and at 2900 rpm with nano additive. CeO2 nano additive reduced the soot opacity by 11.56% for all biodiesel–diesel blends for the engine operating speed range. As the objective of this study the results indicates CeO2 nano additive reduced emissions and improved the performance. So, using sustainable biodiesel–diesel blends made from castor oil with CeO2 nano additive advisable in ideal operating conditions for diesel engines.

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Synthesis and Characterization of Cerium Oxide Nanoparticles and Its Applicability as Fuel Catalyst

Cited by 3 publications

References 5 publications

Assessment of pulmonary toxicity of potential antioxidant drug PEGylated nanoceria after intratracheal instillation in rats

Assessment of pulmonary toxicity of potential antioxidant drug PEGylated nanoceria after intratracheal instillation in rats

Towards sustainable Nanomaterials: Exploring green synthesis methods and their impact on electrical properties

Emission and performance analysis of diesel engine running with CeO2 nanoparticle additive blended into castor oil biodiesel as a substitute fuel

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