Microwave-assisted synthesis and characterization of Bi-substituted yttrium garnet nanoparticles

Hong, Ruoyu; Wu, Yanhong; Feng, Bin; Di, G.Q.; Li, H.Z.; Xu, Beibei; Zheng, Ying; Wei, Dongguang

doi:10.1016/j.jmmm.2008.11.009

Cited by 16 publications

(6 citation statements)

References 21 publications

Supporting

Mentioning

Contrasting

Order By: Relevance

“…It has been studied that the variation of magnetic saturation Ms is due to the cation distribution in the spinel crystal lattice. The ratio of the MR to Ms of the samples is (0.945, 0.939), which shows the super paramagnetic behaviour of the Y 3 Fe 5 O 12 sample at room temperature [10].…”

Section: Temperature Program Reduction (Tpr) Resultsmentioning

confidence: 81%

Y3Fe5O12 Nanocatalyst for Green ammonia Production by Using Magnetic Induction Method

Yahya

Puspitasari

2012

JNanoR

View full text Add to dashboard Cite

Abstract. Ammonia production is an energy-intensive industry as it requires high temperature (400-500 o C) and also high pressure (150-300bar). This motivates research to finding greener and lower energy process for ammonia synthesis. In this work, Y 3 Fe 5 O 12 (YIG) nanocatalyst that has large surface area was synthesized. Ammonia was produced at ambient environment by using the Magnetic Induction Method (MIM).The Y 3 Fe 5 O 12 nanoparticles were prepared using the sol-gel technique and were sintered at three different temperatures (950-1150°C). The X-Ray Diffraction (XRD) patterns show the major peak at [420] plane with the value of a=b=c=12.38Åwhich indicates a cubic structure. The magnetic saturation (Ms) value of the samples is 16.6emu/g. The reducibility of the particles was described from the Temperature Program Reduction (TPR) profile at 806 o C where all the oxide phase is changed to metallic phase. Ammonia yield of 242.56µmole/h.g-cat was successfully obtained at 0 o C reaction temperature. It was observed that ammonia synthesis that was conducted at 0 o C temperature resulted in higher ammonia yield indicating a better spin alignment and hence improved catalytic activities.

show abstract

Section: Temperature Program Reduction (Tpr) Resultsmentioning

confidence: 81%

Y3Fe5O12 Nanocatalyst for Green ammonia Production by Using Magnetic Induction Method

Yahya

Puspitasari

2012

JNanoR

View full text Add to dashboard Cite

show abstract

“…In the case H 2 and N 2 , had elevated the production of ammonia in the ambient pressure and room temperature. It is because the electrons in a good alignment which increase the chemical reaction of the process [12]. The best nanocatalyst is Mn 0.…”

Section: Ammonia Formationmentioning

confidence: 99%

Properties of Mn_0.4Zn_0.6Fe₂O₄and Mn_0.6Zn_0.4Fe₂O₄as Nanocatalyst for Ammonia Production

et al. 2017

View full text Add to dashboard Cite

Abstract. Ammonia synthesis requires high pressure and high temperature process. Unfortunately, the capital intensive cost resulting low yield of ammonia by using recent catalyst which is iron oxide. Therefore, manganese zinc ferrite as a soft ferrite material will be introduced as a new nanocatalyst to enhance the ammonia yield. As a new nanocatalyst for ammonia production, study of comparasion two different concentration of MnZn Ferrite is very important. This paper will compare the yield of ammonia by using two different nanocatalyst which are Mn 0.4 Zn 0.6 Fe 2 O 4 and Mn 0.6 Zn 0.4 Fe 2 O 4 . Both were synthesized by sol-gel method and has been characterize by using FESEM (morphology), XRD (phase identification), EDX (elemental analysis) and TPR (oxide reduction). The ammonia was produce with and without magnetic field applied. The result shows that the ammonia yield is higher for Mn 0.4 Zn 0.6 Fe 2 O 4 nanocatalyst than Mn 0.6 Zn 0.4 Fe 2 O 4 by using magnetic field applied. 67.2% of yield has been achieved by using new nanocatalyst Mn 0.6 Zn 0.4 Fe 2 O 4 and magnetic field applied at ambient environment.

show abstract

“…Bi-substituted yttrium garnet (Bi-YIG, Bi 1.8 Y 1.2 Fe 5 O 12 ) nanoparticles were prepared by MWassisted co-precipitation as well as conventional co-precipitation using ammonia aqueous solution as precipitant [9,10]. The nanoparticles were characterized by thermal gravitydifferential thermal analysis, XRD, TEM, dynamic light scattering, VSM and Faraday rotation meter, respectively.…”

Section: Mw-assisted Synthesis Of Bi-substituted Yttrium Garnet Nanopmentioning

confidence: 99%

“…5. Magnetic hysteresis of Bi-YIG particles: (M1) prepared by MW co-precipitation and (C2) prepared by conventional co-precipitation [9].…”

Section: Mw-assisted Synthesis Of Bi-substituted Yttrium Garnet Nanopmentioning

confidence: 99%

Synthesis, Surface Modification and Characterisation of Nanoparticles

Wang

Hong

2011

Advances in Nanocomposites - Synthesis, Characterization and Industrial Applications

Self Cite

View full text Add to dashboard Cite

Microwave-assisted synthesis and characterization of Bi-substituted yttrium garnet nanoparticles

Cited by 16 publications

References 21 publications

Y<sub>3</sub>Fe<sub>5</sub>O<sub>12</sub><i> </i>Nanocatalyst for <i>Green ammonia</i> Production by Using Magnetic Induction Method

Y<sub>3</sub>Fe<sub>5</sub>O<sub>12</sub><i> </i>Nanocatalyst for <i>Green ammonia</i> Production by Using Magnetic Induction Method

Properties of Mn_0.4Zn_0.6Fe₂O₄and Mn_0.6Zn_0.4Fe₂O₄as Nanocatalyst for Ammonia Production

Synthesis, Surface Modification and Characterisation of Nanoparticles

Contact Info

Product

Resources

About

Microwave-assisted synthesis and characterization of Bi-substituted yttrium garnet nanoparticles

Cited by 16 publications

References 21 publications

Y<sub>3</sub>Fe<sub>5</sub>O<sub>12</sub><i> </i>Nanocatalyst for <i>Green ammonia</i> Production by Using Magnetic Induction Method

Y<sub>3</sub>Fe<sub>5</sub>O<sub>12</sub><i> </i>Nanocatalyst for <i>Green ammonia</i> Production by Using Magnetic Induction Method

Properties of Mn0.4Zn0.6Fe2O4and Mn0.6Zn0.4Fe2O4as Nanocatalyst for Ammonia Production

Synthesis, Surface Modification and Characterisation of Nanoparticles

Contact Info

Product

Resources

About

Properties of Mn_0.4Zn_0.6Fe₂O₄and Mn_0.6Zn_0.4Fe₂O₄as Nanocatalyst for Ammonia Production