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Optimization of electrochemically synthesized Cu

Kasra Pirzadeh, Ali Asghar Ghoreyshi, Mostafa Rahimnejad, Maedeh Mohammadi

Frontiers of Chemical Science and Engineering 2020, Volume 14, Issue 2,   Pages 233-247 doi: 10.1007/s11705-019-1893-1

Abstract: Cu (BTC) , a common type of metal organic framework (MOF), was synthesized through electrochemical routeTaguchi method was employed for optimization of key parameters affecting the synthesis of Cu (BTC) .The results indicated that the optimum synthesis conditions with the highest CO selectivity can be obtainedusing 1 g of ligand, applied voltage of 25 V, synthesis time of 2 h, and electrode length of 3 cm.Moreover, Cu (BTC) showed no considerable loss in CO adsorption after six sequential cycles.

Keywords： Cu<sub>3sub>(BTC)<sub>2sub> electrochemical synthesis     CO<sub>2sub> adsorption     Taguchi optimization    

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Thermodynamic Analysis and Reaction Model of Combustion Synthesis in Al-Cr<sub>2sub>O<sub>3sub> Systemwith Al<sub>2sub>O<sub>3sub> and Cr<sub>2sub>O<sub>3sub> Diluents

Zhang Yancheng,Pan Ye,Zhang Chuan

Strategic Study of CAE 2004, Volume 6, Issue 6,   Pages 63-67

Abstract:

The thermodynamic calculation and analysis of combustion synthesis reaction of Al - Cr<sub>2</sub>O<sub>3</sub> system with AI<sub>2</sub>O<sub>3</sub>and Cr<sub>2</sub>O<sub>3</sub> diluents were conducted, and the effects of reactionstarting temperature T<sub>O</sub>, diluents AI<sub>2</sub>O<sub>3</sub> and Cr<sub>2</sub>O<sub>3</sub> on the adiabatic combustion temperature

Keywords： cermet     combustion synthesis     Al - Cr<sub>2sub>O<sub>3sub> system     thermodynamics     reaction model    

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Ultrasound-assisted co-precipitation synthesis of mesoporous Co3O4–CeO2 composite oxides for highly selective

Frontiers of Chemical Science and Engineering 2022, Volume 16, Issue 8,   Pages 1211-1223 doi: 10.1007/s11705-022-2145-3

Abstract: In this study, a Co<sub>3sub>O<sub>4sub>–CeO<sub>2sub> composite oxide catalyst was successfullyexhibited a higher selectivity to KA-oil, which was benefited from the synergistic effects between Co3+/Co2+ and Ce4+/Ce3+ redox pairs, than bulk CeO<sub>2sub> and/or Co<sub>3sub>O<sub>4sub>.>3sub>O<sub>4sub>–CeO<sub>2sub>.

Keywords： Co<sub>3sub>O<sub>4sub>–CeO<sub>2sub> composite oxides     cyclohexanone     cyclohexanol     ultrasonic-assisted    

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Investigation of fluorescence characterization and electrochemical behavior on the catalysts of nanosized

Chang-Mao HUNG, Wen-Liang LAI, Jane-Li LIN

Frontiers of Environmental Science & Engineering 2013, Volume 7, Issue 3,   Pages 428-434 doi: 10.1007/s11783-013-0517-0

Abstract: This work describes the environmentally friendly technology for oxidation of ammonia (NH ) to form nitrogen at temperatures range from 423K to 673K by selective catalytic oxidation (SCO) over a nanosized Pt-Rh/γ-Al O catalyst prepared by the incipient wetness impregnation method of hexachloroplatinic acid (H PtCl ) and rhodium (III) nitrate (Rh(NO ) ) with γ-Al O in a tubular fixed-bed flow quartz reactor (TFBR). The characterization of catalysts were thoroughly measured using transmission electron microscopy (TEM), three-dimensional excitation-emission fluorescent matrix (EEFM) spectroscopy, UV-Vis absorption, dynamic light-scattering (DLS), zeta potential meter, and cyclic voltammetry (CV). The results demonstrated that at a temperature of 673K and an oxygen content of 4%, approximately 99% of the NH was removed by catalytic oxidation over the nanosized Pt-Rh/γ-Al O catalyst. N was the main product in NH -SCO process. Further, it reveals that the oxidation of NH was proceeds by the over-oxidation of NH into NO, which was conversely reacted with the NH to yield N . Therefore, the application of nanosized Pt-Rh/γ-Al O catalyst can significantly enhance the catalytic activity toward NH oxidation. One fluorescent peak for fresh catalyst was different with that of exhausted catalyst. It indicates that EEFM spectroscopy was proven to be an appropriate and effective method to characterize the Pt clusters in intrinsic emission from nanosized Pt-Rh/γ-Al O catalyst. Results obtained from the CV may explain the significant catalytic activity of the catalysts.

Keywords： ammonia (NH<sub>3sub>)     nanosized Pt-Rh/γ-Al<sub>2sub>O<sub>3sub> catalyst     excitation-emission fluorescent    

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Events and reaction mechanisms during the synthesis of an Al

M. ABDELLAHI, M. ZAKERI, H. BAHMANPOUR

Frontiers of Chemical Science and Engineering 2013, Volume 7, Issue 2,   Pages 123-129 doi: 10.1007/s11705-013-1325-6

Abstract: An Al O -TiB nanocomposite was successfully synthesized by the high energy ball milling of Al, B O and TiO . The structures of the powdered particles formed at different milling times were evaluated by X-ray diffraction (XRD), scanning electron microscopy (SEM) and transmission electron microscopy (TEM). Thermodynamic calculations showed that the composite formed in two steps via highly exothermic mechanically induced self-sustaining reactions (MSRs). The composite started to form at milling times of 9–10 h but the reaction was not complete. The remaining starting materials were consumed by increasing the milling time to 15 h. The XRD patterns of the annealed powders showed that aluminum borate is one of the intermediate products and that it is consumed at higher temperatures. Heat treatment of the 6-h milled sample at 1100 C led to a complete formation of the composite. Increasing the milling time to 15 h led to a refining of the crystallite sizes. A nanocomposite powder with a mean crystallite size of 35–40 nm was obtained after milling for 15 h.

Keywords： ball milling     nanocomposite     Al<sub>2sub>O<sub>3sub>     TiB<sub>2sub>    

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Influence of surface modified mixed metal oxide nanoparticles on the electrochemical and mechanical properties

Frontiers of Chemical Science and Engineering 2023, Volume 17, Issue 1,   Pages 1-14 doi: 10.1007/s11705-022-2176-9

Abstract: Newly synthesized functional nanoparticles, 3-amino-1,2,4-triazole (ATA)/SiO<sub>2sub>–TiO<sub>2subElectrochemical techniques were used to investigate the barrier properties of the synthesized PU–ATA/SiO<sub>2sub>–TiO<sub>2sub> nanocomposite coated steel specimen.In natural seawater, electrochemical impedance spectroscopy experiments indicated outstanding protectivebehaviour for the PU–ATA/SiO<sub>2sub>–TiO<sub>2sub> coated steel.

Keywords： SiO<sub>2sub>/TiO<sub>2sub> nanoparticle     nanocomposite coatings     dynamic mechanical analysis     electrochemical    

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Newly-modeled graphene-based ternary nanocomposite for the magnetophotocatalytic reduction of CO2 withelectrochemical performance

Frontiers of Chemical Science and Engineering 2022, Volume 16, Issue 10,   Pages 1438-1459 doi: 10.1007/s11705-022-2166-y

Abstract: of the final product was improved to a value 3 times higher than that of the pure AgCuZnS<sub>2sub> and 2 times higher than those of AgCuZnS<sub>2sub>–graphene and AgCuZnS<sub>2sub>–TiO<sub>2subThe electrochemical CO<sub>2sub> reduction test was also conducted to analyze the efficacy of the AgCuZnS<sub>2sub>–graphene–TiO<sub>2sub> when used as a working electrode in laboratory electrochemical>2sub> to methanol through an electrochemical and photocatalytic process.

Keywords： ternary nanocomposite     photocatalytic     electrochemical CO<sub>2sub> reduction     UV-light     magnetic core    

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Inexpensive synthesis of a high-performance Fe

Nadir Abbas, Godlisten N. Shao, Syed M. Imran, Muhammad S. Haider, Hee Taik Kim

Frontiers of Chemical Science and Engineering 2016, Volume 10, Issue 3,   Pages 405-416 doi: 10.1007/s11705-016-1579-x

Abstract: A sol-gel technique has been developed for the synthesis of a magnetite-silica-titania (Fe O -SiO -TiO

Keywords： sol-gel     photocatalysis     magnetic recovery     TiO<sub>2sub>     Fe<sub>3sub>O<sub>4sub>     SiO<sub>2sub>    

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Synthesis of magnetic Pb/Fe

Hualiang AN, Xinqiang ZHAO, Zhiguang JIA, Changcheng WU, Yanji WANG

Frontiers of Chemical Science and Engineering 2009, Volume 3, Issue 2,   Pages 215-218 doi: 10.1007/s11705-009-0055-2

Abstract: Under the reaction conditions of a reaction temperature of 180°C, reaction time of 2 h, catalyst percentage

Keywords： Pb/Fe<sub>3sub>O<sub>4sub>/SiO<sub>2sub> magnetic particle     urea     1     2-propylene glycol     propylene    

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Facile synthesis and enhanced visible-light photocatalytic activity of Ti

Xiaojie Zhang,Lei Wang,Shuqing Chen,Yi Huang,Zhuonan Song,Miao Yu

Frontiers of Chemical Science and Engineering 2015, Volume 9, Issue 3,   Pages 349-358 doi: 10.1007/s11705-015-1523-5

Abstract: Effects of hydrothermal synthesis temperature and the amount of added anatase TiO on the photocatalyticSignificantly enhanced photocatalytic activity of doped TiO (A/R) was observed; under the optimized synthesis

Keywords： Ti3+-doped TiO<sub>2sub>     photocatalytic CO<sub>2sub> conversion     visible light irradiation    

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Preparation of Cu/ZnO/Al

Hui FAN, Huayan ZHENG, Zhong LI

Frontiers of Chemical Science and Engineering 2010, Volume 4, Issue 4,   Pages 445-451 doi: 10.1007/s11705-010-0521-x

Abstract: Cu/ZnO/Al O catalysts with Cu/Zn/Al ratios of 6/3/1 were precipitated and aged by conventional and microwaveheating methods and tested in the slurry phase reactor for methanol synthesis.

Keywords： microwave irradiation     precipitation temperature     aging temperature     methanol synthesis     Cu/ZnO/Al<sub>2sub>O<sub>3sub> catalyst    

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Rh<sub>2sub>O<sub>3sub>/hexagonal CePO<sub>4sub> nanocatalysts for N<sub>2sub>O decomposition

Huan Liu, Zhen Ma

Frontiers of Chemical Science and Engineering 2017, Volume 11, Issue 4,   Pages 586-593 doi: 10.1007/s11705-017-1659-6

Abstract: were prepared by a precipitation method and hexagonal CePO nanowires were prepared by hydrothermal synthesis

Keywords： Rh<sub>2sub>O<sub>3sub>     CePO<sub>4sub>     N<sub>2sub>O decomposition    

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Bamboo-like -doped carbon nanotubes encapsulating M(Co, Fe)-Ni alloy for electrochemical production of

Frontiers of Chemical Science and Engineering 2022, Volume 16, Issue 4,   Pages 498-510 doi: 10.1007/s11705-021-2082-6

Abstract: The electrochemical conversion of CO<sub>2sub>-H<sub>2sub>O into CO-H<sub>2sub> using renewableLow-cost electrocatalysts to produce tunable syngas with a potential-independent CO/H<sub>2sub> ratioMore importantly, stable CO/H<sub>2sub> ratios of 2:1 and 1.5:1, corresponding to the ratio to producebiofuels by syngas fermentation, could be realized on Co<sub>1sub>Ni-NCNT and Co<sub>2sub>Ni-NCNT>2sub> ratio from electrochemical CO<sub>2sub> reduction.

Keywords： electrochemical reduction of CO<sub>2sub>     syngas     N-doped carbon nanotubes     encapsulated alloynanoparticles     CO/H<sub>2sub> ratio    

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Effects of gradient concentration on the microstructure and electrochemical performance of LiNi

Wenming Li, Weijian Tang, Maoqin Qiu, Qiuge Zhang, Muhammad Irfan, Zeheng Yang, Weixin Zhang

Frontiers of Chemical Science and Engineering 2020, Volume 14, Issue 6,   Pages 988-996 doi: 10.1007/s11705-020-1918-9

Abstract: results demonstrate that the GC of LNCM622 materials plays an important role in their microstructure and electrochemicalpathway for lithium-ion diffusion and stabilize the near-surface region, and finally achieve excellent electrochemical

Keywords： gradient concentration     Ni-rich     LiNi<sub>0.6sub>Co<sub>0.2sub>-Mn<sub>0.2sub>O<sub>2sub>     electrochemical    

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Design, synthesis, and antiviral properties of 2-aryl-1H-benzimidazole-4-carboxamide derivatives

Xianjin LUO, Zhonglü ZHANG, Yutian YANG, Fei XUE, Naiyun XIU, Yuanbin SHE

Frontiers of Chemical Science and Engineering 2009, Volume 3, Issue 3,   Pages 305-309 doi: 10.1007/s11705-009-0021-z

Abstract: A series of new benzimidazole derivatives were designed and synthesized. Their chemical structures were testified by H NMR, infrared spectroscopy (IR), mass spectrography (MS), and elemental analysis. Their potent antiviral properties indicated the prospect of new drugs. Compound , , , , , , and were identified as novel antivirus with much better selective activity and inhibitory activity than the comparable ribavirin against Coxsackie virus B in VERO cells.

Keywords： benzimidazole     coxsackie virus B<sub>3sub>     antiviral properties    

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Title Author Date Type Operation

Optimization of electrochemically synthesized Cu

Kasra Pirzadeh, Ali Asghar Ghoreyshi, Mostafa Rahimnejad, Maedeh Mohammadi

Journal Article

Thermodynamic Analysis and Reaction Model of Combustion Synthesis in Al-Cr<sub>2sub>O<sub>3sub> Systemwith Al<sub>2sub>O<sub>3sub> and Cr<sub>2sub>O<sub>3sub> Diluents

Zhang Yancheng,Pan Ye,Zhang Chuan

Journal Article

Ultrasound-assisted co-precipitation synthesis of mesoporous Co3O4–CeO2 composite oxides for highly selective

Journal Article

Investigation of fluorescence characterization and electrochemical behavior on the catalysts of nanosized

Chang-Mao HUNG, Wen-Liang LAI, Jane-Li LIN

Journal Article

Events and reaction mechanisms during the synthesis of an Al

M. ABDELLAHI, M. ZAKERI, H. BAHMANPOUR

Journal Article

Influence of surface modified mixed metal oxide nanoparticles on the electrochemical and mechanical properties

Journal Article

Newly-modeled graphene-based ternary nanocomposite for the magnetophotocatalytic reduction of CO2 withelectrochemical performance

Journal Article

Inexpensive synthesis of a high-performance Fe

Nadir Abbas, Godlisten N. Shao, Syed M. Imran, Muhammad S. Haider, Hee Taik Kim

Journal Article

Synthesis of magnetic Pb/Fe

Hualiang AN, Xinqiang ZHAO, Zhiguang JIA, Changcheng WU, Yanji WANG

Journal Article

Facile synthesis and enhanced visible-light photocatalytic activity of Ti

Xiaojie Zhang,Lei Wang,Shuqing Chen,Yi Huang,Zhuonan Song,Miao Yu

Journal Article

Preparation of Cu/ZnO/Al

Hui FAN, Huayan ZHENG, Zhong LI

Journal Article

Rh<sub>2sub>O<sub>3sub>/hexagonal CePO<sub>4sub> nanocatalysts for N<sub>2sub>O decomposition

Huan Liu, Zhen Ma

Journal Article

Bamboo-like -doped carbon nanotubes encapsulating M(Co, Fe)-Ni alloy for electrochemical production of

Journal Article

Effects of gradient concentration on the microstructure and electrochemical performance of LiNi

Wenming Li, Weijian Tang, Maoqin Qiu, Qiuge Zhang, Muhammad Irfan, Zeheng Yang, Weixin Zhang

Journal Article

Design, synthesis, and antiviral properties of 2-aryl-1H-benzimidazole-4-carboxamide derivatives

Xianjin LUO, Zhonglü ZHANG, Yutian YANG, Fei XUE, Naiyun XIU, Yuanbin SHE

Journal Article