Fibrous Cerium (IV) Hydrogen Phosphate Membrane Self-Supported Benzimidazole Polymerization Agent

Shakshooki, S. K.; El-Akari, F. A.; El-Fituri, S.M.; El-Fituri, S.S.

doi:10.4028/www.scientific.net/amr.856.3

Cited by 12 publications

(7 citation statements)

References 25 publications

Supporting

Mentioning

Contrasting

Order By: Relevance

“…According to the X-ray diffraction (XRD) data, the aerogels had a nearly amorphous structure, with the most intense peak at 7.8°2θ corresponding to an interplanar distance of 1.1 nm (Figure S1). In a number of previous works, similar diffraction patterns have been observed for poorly crystalline materials based on fibrous cerium(IV) phosphates; − the presence of a broad peak at low 2θ angles was assigned to the layered structure of the materials. A detailed analysis of the XRD data (Figure S1) showed the presence of low intensity peaks that can be attributed to a rhabdophane structure (CePO 4 · x H 2 O).…”

Section: Resultssupporting

confidence: 64%

1D Ceric Hydrogen Phosphate Aerogels: Noncarbonaceous Ultraflyweight Monolithic Aerogels

et al. 2020

View full text Add to dashboard Cite

Ceric hydrogen phosphate gels possess a very unique spatial organization, being nearly amorphous materials with a fibrous structure. Using a sol–gel approach, we succeeded in preparing bulky gels containing as much as 20,000 molecules of water per cerium atom. Supercritical treatment of these gels made it possible to obtain the first ultralight monolithic noncarbonaceous aerogels with a density as low as 1 mg/cm 3 .

show abstract

Section: Resultssupporting

confidence: 64%

1D Ceric Hydrogen Phosphate Aerogels: Noncarbonaceous Ultraflyweight Monolithic Aerogels

et al. 2020

View full text Add to dashboard Cite

show abstract

“…α-Layered mixed zirconium-titanium phosphates, Zr x Ti (1x) (HOP 4 ) 2 .H 2 O(α-Zr x Ti 1-x P), (0 ≤ x ≤ 1),are known, Shakshooki, et al [26], To date there have been very little work on layered α-zirconium-tin phosphates. However, preparation of mixed α-Zr x Sn (1-x) (HOP 4 ) 2 .H 2 O(α-Zr x Ti 1-x P), for 0 ≤ x ≤ 1, via different methods and their characterization have been reported, Barganasco, et al [29], Trobajo and Rodríguez [30], Shakshooki, et al [31].…”

Section: Introductionmentioning

confidence: 99%

Studies on Electrochemical Properties of Polycarbazole Prepared Via Self-Support Polymerization and Self-Doping

Shakshooki¹,

El-Akari²,

Abouderbala³

et al. 2023

AJC

View full text Add to dashboard Cite

Mixed glassy zirconium-tin phosphate, g-Zr0.64.Sn.0.36(HPO4)2.3H2O(g-ZrSnP), nano fibrous cerium phosphate, Ce(HPO4)2 2,9H2O(nCePf), and mixed glassy zirconium-tin phosphate / fibrous cerium phosphate nanocomposite membrane, [g-Zr0.64 Sn0.36 (HPO4)2]0.25 [Ce(HPO4)2]0.75 ..4.43H2O, were prepared and characterized. By chemical , x-ray diffraction (XRD), thermogravimetric analysis (TGA), and Fourier transform spectroscopy (FTIR), Zirconium tin mole ratio were estimated using (EDAX). Novel [g-Zr0.64 Sn0.36 (HPO4)2]0.25 [Ce(HPO4)2]0.75 / polycarbazole nanocomposite membrane was prepared via self-support polymerization of carbazole, which was promoted by the reduction of Ce(iv) phosphate present in the inorganic matrix. Possible explanation is nCePf present on the surface of the nanocomposite is attacked by carbazole, converted to cerium (III) orthophosphate(CePO4). The resultant polycarbazole was characterized by C,H,N analysis, SEM ,FT-IR. UV-Vis and electrical conductance measurements. From elemental (C,H,N) analysis, the amount of polycarbazole present in the composite found to be (2.15 % in wt.). Polycarbazole is considered as one of modern material used in solar cells, furthermore it has become an important material for optoelectronic applications in recent years. The dc conductivity of polycarbazole nanocomposite membrane at 280C (using RC-Circuit) found to be equal to 3x10-5 Scm-1, range of semi-conductors. We suggest self-doping occurred on polymerization, which is due to H+ present in (O3POH)2 groups of [g-Zr0.64 Sn0.36 (HPO4)2]0.25. The electrochemistry of resultant polycarbazole in acetonitrile solution for a range of concentrations from 1.06 x10-4 to 2.19 x 10–3 mol dm-3 was carried out using CV techniques. Investigation of its electrochemical properties affords insight into the mechanisms for their oxidation and reduction, therefore provides the basis for evaluating the stabilities of the material and for designing novel polycarbazole-derived materials with desired properties as well as new devices. That will be discussed.

show abstract

“…Recently we have reported articles on self-support polymerizations of selected organic nitrogen conjugated monomers [25][26][27][28][29][30][31].…”

Section: Introductionmentioning

confidence: 99%

γ-Zirconium Titanium-Phosphates – Fibrous Cerium Phosphate / Polyaniline, Polyindole, Polycarbazole and Polyimidazole Nanocomposite Membranes

Shakshooki¹,

El-Akari²,

Kara³

et al. 2022

AJC

View full text Add to dashboard Cite

Layered nanosized mixed γ-zirconium titanium phosphates and fibrous cerium phosphate, γ-ZrxTi(1-x)..PO4.H2PO4.2H2O (γ-ZTP), Ce(HPO4)2.2.9H2O(nCePf), respectively, (x= 0.95, 0.89), and their [γ-ZrxTi(1-x).PO4. H2PO4]0.3 [Ce(HPO4)2]0.70. 2H2O nanocomposite membranes were prepared and characterized by chemical, x-ray diffraction (XRD), thermogravimetric analysis (TGA) and Fourier transform spectroscopy (FT-IR). Novel [γ-ZrxTi(1-x).PO4.H2PO4]0.3[Ce(HPO4)2]0.70 /polyaniline, polyindole, polycarbazole, and polyimidazole nanocomposite membranes were prepared via in-situ chemical oxidation of the monomers aniline, indole, carbazole and imidazole, respectively, that was promoted by the reduction of Ce(IV) ions present on the surface of the inorganic matrix composite. A possible explanation is nCePf occurs at the surface of the composite was attacked by the monomers, respectively, converted to cerium (III) orthophosphate (CePO4). The resultant novel composites were characterized by elemental (C,H,N) analysis and FT-IR. From elemental (C,H,N) analysis the % in weight of the resultant conducting polymers present in [γ-Zr0.95Ti0.05.PO4.H2PO4]0.3 [Ce(HPO4)2]0.70 composite were [ Pani 19.35, PIn 5,72. PCz 5.8, PIm 23.7]%. The % in weight of the conducting polymers in the composite [γ-Zr0.9Ti0.11.PO4.H2PO4]0.3[[Ce(HPO4)2]0.70 were [Pani 8.54, PIn 8.02, PCz 7.72, PIm 22.27]%. The conductivity of the resultant conducting polymers found to be in the range of semiconductors.

show abstract

Fibrous Cerium (IV) Hydrogen Phosphate Membrane Self-Supported Benzimidazole Polymerization Agent

Cited by 12 publications

References 25 publications

1D Ceric Hydrogen Phosphate Aerogels: Noncarbonaceous Ultraflyweight Monolithic Aerogels

1D Ceric Hydrogen Phosphate Aerogels: Noncarbonaceous Ultraflyweight Monolithic Aerogels

Studies on Electrochemical Properties of Polycarbazole Prepared Via Self-Support Polymerization and Self-Doping

γ-Zirconium Titanium-Phosphates – Fibrous Cerium Phosphate / Polyaniline, Polyindole, Polycarbazole and Polyimidazole Nanocomposite Membranes

Contact Info

Product

Resources

About