Aziridine-Functionalized Graphene: Effect of Aromaticity for Aryl Functional Groups on Enhanced Power Conversion Efficiency of Organic Photovoltaic Cells
Publication date: Available online 24 November 2018Source: Journal of Saudi Chemical SocietyAuthor(s): Sanjeev Kumar Ujjain, Rohit Bhatia, Preety AhujaAbstractWe have demonstrated the covalent functionalization of graphene by nitrene chemistry, resulting in highly dispersed aryl azides functionalized graphene. Two different ortho-substituted aryl azides having different aromatic ring (π-conjugation) and ester/anhydride substituent have been synthesized. Further, on thermolysis they undergo [2+1] cycloaddition ensuing in the formation of aziridine adduct with sp2 carbons of graphene. Resulting aryl azide functionalized gra...
Source: Journal of Saudi Chemical Society - November 24, 2018 Category: Chemistry Source Type: research
Synthesis of Mesoporous-Silica Coated Multi-branched Gold Nanoparticles for Surface Enhanced Raman Scattering Evaluation of 4-Bromomethcathinone
Publication date: Available online 24 November 2018Source: Journal of Saudi Chemical SocietyAuthor(s): Yun Zou, Hong Chen, Yu Li, Xiaoliang Yuan, Xuejun Zhao, Wei Chen, Fangqi Cao, Nengbin Cai, Xiaochun Huang, Feiyu Yang, Wenbin LiuAbstractMesoporous silica-coated multi-branched gold nanoparticles (bAu@mesoSiO2) aiming for enhanced Raman sensing for 4-bromomethcathinone (4-BMC) detection is reported. In this work, we present an effective strategy to probe the Raman signal of 4-MBC. Morphologies and optical properties of the synthesized materials with different [Au3+]/[Au0] ratios are characterized utilizing transmission el...
Source: Journal of Saudi Chemical Society - November 24, 2018 Category: Chemistry Source Type: research
Synthesis and characterization of different morphological structures of nanocarbon by chemical vapor deposition over Fe-Ni-Co-Mo/MgO catalyst
Publication date: Available online 24 November 2018Source: Journal of Saudi Chemical SocietyAuthor(s): Adel A. Ezz, Mustafa M. Kamel, Gamal R. SaadAbstractCatalytic chemical vapor deposition (CCVD) is one of the most promising synthesis methods for economically producing large quantities of different nanocarbon structures. Here we report a systematic study of the synthesis conditions for the preparation of different nanocarbon morphological structures via acetylene decomposition over the surface of quaternary-metallic catalyst (Fe-Ni-Co-Mo) supported on MgO (Fe-Ni-Co-Mo/MgO). In particular, the effect of temperature, and t...
Source: Journal of Saudi Chemical Society - November 24, 2018 Category: Chemistry Source Type: research
Editorial Board
Publication date: December 2018Source: Journal of Saudi Chemical Society, Volume 22, Issue 8Author(s): (Source: Journal of Saudi Chemical Society)
Source: Journal of Saudi Chemical Society - November 22, 2018 Category: Chemistry Source Type: research
Heterogeneous synthesis of glycerol carbonate from glycerol and dimethyl carbonate catalyzed by LiCl/CaO
Publication date: Available online 17 November 2018Source: Journal of Saudi Chemical SocietyAuthor(s): Ying Tang, YuYing Xue, Zhaoyi Li, Tianlan Yan, Rui Zhou, Zhiping ZhangAbstractIn this article, a CaO-based catalyst was prepared by impregnating chloride salts on CaO to develop a highly efficient heterogeneous catalyst for the synthesis of glycerol carbonate (GC) from glycerol and dimethyl carbonate. LiCl/CaO exhibited a high catalytic activity under moderate reaction conditions. The effects of the LiCl loadings, the amount of catalyst and the calcination temperature on the catalytic activity were investigated. The highe...
Source: Journal of Saudi Chemical Society - November 18, 2018 Category: Chemistry Source Type: research
Effect of Fe-Mo promoters on HZSM-5 zeolite catalyst for 1-hexene aromatization
Publication date: Available online 15 November 2018Source: Journal of Saudi Chemical SocietyAuthor(s): Andrii Kostyniuk, David Key, Masikana MdleleniAbstractThe promotional effect of Fe-Mo species introduced into HZSM-5 (Zeolyst Int., SiO2/Al2O3 ≈ 30) zeolite catalyst by the wetness impregnation method for the 1-hexene aromatization was investigated. The structure and catalytic performance for the aromatization of 1-hexene over xFeyMo-ZSM-5 catalysts in comparison with unmodified HZSM-5 catalysts were studied. The xFeyMo-ZSM-5 catalysts contain fixed loading (5 wt%) and variable Fe/Mo ratio. The catalysts were characteri...
Source: Journal of Saudi Chemical Society - November 16, 2018 Category: Chemistry Source Type: research
A kinetic investigation on the thermal decomposition of propellants catalyzed by rGO/MFe2O4 (M= Cu, Co, Ni, Zn) nanohybrids
Publication date: Available online 14 November 2018Source: Journal of Saudi Chemical SocietyAuthor(s): Weiran Wang, Dongxiang ZhangAbstractReduced graphene oxide/metal ferrite (rGO/MFe2O4, M=Cu, Co, Ni) nanohybrids are successfully prepared through a simple, one-step hydrothermal method. The rGO/MFe2O4 hybrids are characterized by XRD, TEM. The rGO/MFe2O4 nanohybrids demonstrate amazing catalytic activity on thermal decomposition of ammonium perchlorate (AP) based propellants. DSC results indicate that the high-temperature decomposition (HTD) temperature of propellants added with rGO/MFe2O4 nanohybrids (3 wt.%), could decr...
Source: Journal of Saudi Chemical Society - November 15, 2018 Category: Chemistry Source Type: research
Experimental and theoretical investigations of the molecular structure, the spectroscopic properties and TD-DFT analysis of a new semiconductor hybrid based iron (III)
Publication date: Available online 13 November 2018Source: Journal of Saudi Chemical SocietyAuthor(s): Aycha Jellali, Slim Elleuch, Besma Hamdi, Ridha ZouariAbstractIn this work, a new hybrid material (C5H6N2Cl)2[FeCl4].Cl abbreviated (CAP)2[FeCl4].Cl was prepared using room temperature slow evaporation technique. The X-ray diffraction analysis revealed that the compound is crystallized in the centrosymmetric space group P21/c of the monoclinic system. The crystallographic network consists of an Fe(III) ion located on an inversion center and coordinated by four chlorine, isolated Cl– and two (CAP)+ protonated cations lin...
Source: Journal of Saudi Chemical Society - November 14, 2018 Category: Chemistry Source Type: research
Enhanced photocatalytic activity and stability of AgBr/BiOBr/graphene heterojunction for phenol degradation under visible light
Publication date: Available online 10 November 2018Source: Journal of Saudi Chemical SocietyAuthor(s): Pardeep Singh, Sonu, Pankaj Raizada, Anita Suadhik, Poooja Shandilya, Pankaj Thakur, Shilpi Agarwal, Vinod Kumar GuptaAbstractIn this work, we have reported synthesis of AgBr/BiOBr photocatalyst supported on graphene (Gr) using facile precipitation method. AgBr/BiOBr/Gr was characterized using various spectral techniques like FESEM, TEM, XRD, FTIR, XPS, Raman and PL analysis. AgBr/BiOBr/Gr had improved visible light absorption. PL studies indicated the reduction in recombination of photogenerated electron hole pair of AGB...
Source: Journal of Saudi Chemical Society - November 11, 2018 Category: Chemistry Source Type: research
Photoluminescence emission behavior on the reduced band gap of Fe doping in CeO2-SiO2 nanocomposite and photophysical properties
Publication date: Available online 21 October 2018Source: Journal of Saudi Chemical SocietyAuthor(s): Muhammad Akhyar Farrukh, Komal Mehmood Butt, Kok-Keong Chong, Wei Sea ChangAbstractFe/CeO2-SiO2 nanocomposite was synthesized via hydrothermal method. Bond length of nanocomposite was determined through FTIR analysis, while Raman analysis showed lattice relaxation of CeO2 phase in Fe/CeO2-SiO2. TEM, XRD and DLS-PSA revealed an increase in size of Fe/CeO2-SiO2 as compared to CeO2-SiO2 which was attributed to have more oxygen vacancies in CeO2 after doping of iron. Lattice contraction was also observed in some phases of CeO2...
Source: Journal of Saudi Chemical Society - October 30, 2018 Category: Chemistry Source Type: research
Editorial Board
Publication date: November 2018Source: Journal of Saudi Chemical Society, Volume 22, Issue 7Author(s): (Source: Journal of Saudi Chemical Society)
Source: Journal of Saudi Chemical Society - October 26, 2018 Category: Chemistry Source Type: research
Retraction notice to “Preparation and characterization of zinc glycerolate: UV protection, biological activity and permeation study” [J. Saudi Chem. Soc. 21 (2017) 643–655]
Publication date: November 2018Source: Journal of Saudi Chemical Society, Volume 22, Issue 7Author(s): Mei Yee Cheong, Hazimah Abu Hassan, Rosnah Ismail, Zafarizal Aldrin Azizul Hasan (Source: Journal of Saudi Chemical Society)
Source: Journal of Saudi Chemical Society - October 26, 2018 Category: Chemistry Source Type: research
La2O3 promotional effect to Co3O4/γ-Al2O3 catalyst in the oxidative dehydrogenation of ethylbenzene with CO2 as soft oxidant
Publication date: Available online 23 October 2018Source: Journal of Saudi Chemical SocietyAuthor(s): Venkata Rao Madduluri, Peddinti Nagaiah, Challa Pratap, Paleti Gidyonu, Burri David Raju, Kamaraju Seetha Rama RaoAbstractCo3O4/γ-Al2O3 catalysts with variable Co3O4 loadings (5–20 wt%) and deposition of 15% Co3O4 on La2O3/γ-Al2O3 were prepared by wet impregnation method. La2O3-γ-Al2O3 support with variable composition of La2O3 (2–6 wt%) were prepared by co-precipitation method. All the catalysts were tested for oxidative dehydrogenation of ethylbenzene with CO2 as soft oxidant. Among the Co3O4/γ-Al2O3 catalyst...
Source: Journal of Saudi Chemical Society - October 23, 2018 Category: Chemistry Source Type: research
Photoluminescence emission behaviour on the reduced band gap of Fe doping in CeO2-SiO2 nanocomposite and photophysical properties
Publication date: Available online 21 October 2018Source: Journal of Saudi Chemical SocietyAuthor(s): Muhammad Akhyar Farrukh, Komal Mehmood Butt, Kok-Keong Chong, Wei Sea ChangAbstractFe/CeO2-SiO2 nanocomposite was synthesized via hydrothermal method. Bond length of nanocomposite was determined through FTIR analysis, while Raman analysis showed lattice relaxation of CeO2 phase in Fe/CeO2-SiO2. TEM, XRD and DLS-PSA revealed an increase in size of Fe/CeO2-SiO2 as compare to CeO2-SiO2 which was attributed to have more oxygen vacancies in CeO2 after doping of iron. Lattice contraction was also observed in some phases of CeO2 ...
Source: Journal of Saudi Chemical Society - October 22, 2018 Category: Chemistry Source Type: research
Design, synthesis, and in vitro antifungal evaluation of novel triazole derivatives bearing alkynyl side chains
Publication date: Available online 21 October 2018Source: Journal of Saudi Chemical SocietyAuthor(s): Tingjunhong Ni, Lei Pang, Zhan Cai, Fei Xie, Zichao Ding, Yumeng Hao, Ran Li, Shichong Yu, Xiaoyun Chai, Ting Wang, Yongsheng Jin, Dazhi Zhang, Yuanying JiangAbstractIn order to explore novel antifungal agents, twenty-seven triazole derivatives featuring an alkyne linker in the side chain were designed and synthesized by Sonogashira reaction. Most of the target compounds exhibited good antifungal activity against eight human pathogenic fungi, especially excellent activity against Candida and Cryptococcus species, comparing...
Source: Journal of Saudi Chemical Society - October 22, 2018 Category: Chemistry Source Type: research
