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Facile synthesis of hierarchical flower-like Ag/Cu

Mengyun Wang, Shengbo Zhang, Mei Li, Aiguo Han, Xinli Zhu, Qingfeng Ge, Jinyu Han, Hua Wang

Frontiers of Chemical Science and Engineering 2020, Volume 14, Issue 5,   Pages 813-823 doi: 10.1007/s11705-019-1854-8

Abstract: By varying the Ag/Cu atomic ratio, Ag /Cu O, having a hierarchical, flower-like nanostructure with intersecting

Keywords： bimetallic nanostructure     hierarchical metal/oxide nanomaterial     galvanic replacement     electrochemical reduction    

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Ni-Co bimetallic catalyst for CH

Xiaohong LI, Jun AI, Wenying LI, Dongxiong LI

Frontiers of Chemical Science and Engineering 2010, Volume 4, Issue 4,   Pages 476-480 doi: 10.1007/s11705-010-0512-y

Abstract: Ni-Co/Al O -ZrO bimetallic catalyst has good performance in the reduction of active components Ni, CoCompared with mono-metallic catalyst, bimetallic catalyst could provide more active sites and CO adsorption

Keywords： Ni-Co bimetallic catalyst     composite support     CH4 reforming with CO2    

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Enhanced activation of persulfate using mesoporous silica spheres augmented Cu–Al bimetallic oxide particles

Frontiers of Chemical Science and Engineering 2023, Volume 17, Issue 10,   Pages 1581-1592 doi: 10.1007/s11705-023-2327-7

Abstract: Herein, Cu–Al bimetallic oxide was synthesized and mixed with mesoporous silica spheres via a simpleresults of X-ray diffraction, scanning electron microscopy, and energy dispersion spectroscopy, Cu–Al bimetallic

Keywords： Cu–Al bimetallic oxides     mesoporous silica spheres     peroxydisulfate     bisphenol A    

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Fabrication of bimetallic Cu–Zn adsorbents with high dispersion by using confined space for gas adsorptive

Frontiers of Chemical Science and Engineering   Pages 1623-1631 doi: 10.1007/s11705-022-2202-y

Abstract: The bimetallic materials were employed for the adsorptive separation of propene and propane.

Keywords： bimetallic adsorbents     confined space     mesoporous silica     propene/propane separation    

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Removing polybrominated diphenyl ethers in pure water using Fe/Pd bimetallic nanoparticles

Min ZHANG,Jian LU,Zhencheng XU,Yiliang HE,Bo ZHANG,Song JIN,Brian BOMAN

Frontiers of Environmental Science & Engineering 2015, Volume 9, Issue 5,   Pages 832-839 doi: 10.1007/s11783-015-0778-x

Abstract: To enhance the degradation efficiency, ZVI/Palladium bimetallic nanoparticles (nZVI/Pd) were synthesized

Keywords： degradation     bimetallic nanoparticles     nanoscale zero-valent iron     polybrominated diphenyl ethers    

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Dechlorination of dichlorodiphenyltrichloroethane (DDT) by Fe/Pd bimetallic nanoparticles: Comparison

Kubra Ulucan-Altuntas, Eyup Debik

Frontiers of Environmental Science & Engineering 2020, Volume 14, Issue 1, doi: 10.1007/s11783-019-1196-2

Abstract: DDT undergoes dechlorination via Fe/Pd bimetallic nanoparticle.In this study, the bimetallic Fe/Pd nanoparticle was synthesized using the catalytic element palladiumThe highest possible initial DDT concentration for the treatment with Fe/Pd bimetallic nanoparticle was

Keywords： Persistent organic pollutants     nZVI     Bimetallic nanoparticle     Organochlorine pesticides     DDT    

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Enhanced activity of bimetallic Fe-Cu catalysts supported on ceria toward water gas shift reaction: synergistic

Frontiers of Chemical Science and Engineering 2023, Volume 17, Issue 12,   Pages 1962-1972 doi: 10.1007/s11705-023-2359-z

Abstract: In this work, we propose bimetallic iron-copper catalysts supported on ceria, characterized by low active

Keywords： water gas shift     iron     copper     bimetallic catalysts     ceria     hydrogen    

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Mechanistic understanding of Cu-based bimetallic catalysts

You Han, Yulian Wang, Tengzhou Ma, Wei Li, Jinli Zhang, Minhua Zhang

Frontiers of Chemical Science and Engineering 2020, Volume 14, Issue 5,   Pages 689-748 doi: 10.1007/s11705-019-1902-4

Abstract: Copper has received extensive attention in the field of catalysis due to its rich natural reserves, low cost, and superior catalytic performance. Herein, we reviewed two modification mechanisms of co-catalyst on the coordination environment change of Cu-based catalysts: (1) change the electronic orbitals and geometric structure of Cu without any catalytic functions; (2) act as an additional active site with a certain catalytic function, as well as their catalytic mechanism in major reactions, including the hydrogenation to alcohols, dehydrogenation of alcohols, water gas shift reaction, reduction of nitrogenous compounds, electrocatalysis and others. The influencing mechanisms of different types of auxiliary metals on the structure-activity relationship of Cu-based catalysts in these reactions were especially summarized and discussed. The mechanistic understanding can provide significant guidance for the design and controllable synthesis of novel Cu-based catalysts used in many industrial reactions.

Keywords： copper     bimetallic catalyst     coordination     modification mechanism     catalytic application    

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Interfacial induction and regulation for microscale crystallization process: a critical review

Frontiers of Chemical Science and Engineering 2022, Volume 16, Issue 6,   Pages 838-853 doi: 10.1007/s11705-021-2129-8

Abstract: Microscale crystallization is at the frontier of chemical engineering, material science, and biochemical research and is affected by many factors. The precise regulation and control of microscale crystal processes is still a major challenge. In the heterogeneous induced nucleation process, the chemical and micro/nanostructural characteristics of the interface play a dominant role. Ideal crystal products can be obtained by modifying the interface characteristics, which has been proven to be a promising strategy. This review illustrates the application of interface properties, including chemical characteristics (hydrophobicity and functional groups) and the morphology of micro/nanostructures (rough structure and cavities, pore shape and pore size, surface porosity, channels), in various microscale crystallization controls and process intensification. Finally, possible future research and development directions are outlined to emphasize the importance of interfacial crystallization control and regulation for crystal engineering.

Keywords： interfacial crystallization     heterogeneous nucleation     supersaturation     micro/nanostructure     process    

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Fabrication of titania thin film with composite nanostructure and its ability to photodegrade rhodamine

ZHANG Gaojie, WU Jinming, LIU Shaoguang, YAN Mi

Frontiers of Chemical Science and Engineering 2008, Volume 2, Issue 1,   Pages 44-48 doi: 10.1007/s11705-008-0001-8

Abstract: nanorods through an infiltration sol-gel procedure to form a composite titania film with an ordered nanostructure

Keywords： constant     weight     apparent photodegradation     hydrogen     nanorod    

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Investigation of nanostructure of konjac-based water absorbents with atomic force microscopy

Shengrong GENG, Ruotai LIN, Mingli CHEN, Shaoyang LIU, Yifen WANG,

Frontiers of Chemical Science and Engineering 2009, Volume 3, Issue 4,   Pages 357-362 doi: 10.1007/s11705-009-0245-y

Abstract: Atomic force microscopy technology is gradually spreading to almost all aspects, including food science and technology, since it was first invented in 1986. In this study, this powerful instrument was applied to image nanostructures of three water absorbents—original konjac powder, konjac powder grafted with acrylic acid using Co γ-irradiation and regenerated grafted powder. Water absorption capacities and the rates of the three absorbents were also determined in this work. Original konjac powder could only absorb 60 times (w/w) of water, while 270 times for the grafted absorbent and 360 times for the regenerated absorbent. The initial water absorption rates in both tap and distilled water were high, but the rate decreased steeply as time elapsed. After 20min, the absorbent was close to saturated status. These physical properties were in accordance with the nanostructures of these three water absorbents.

Keywords： regenerated grafted     -irradiation     grafted     grafted absorbent     accordance    

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A Pt-Bi bimetallic nanoparticle catalyst for direct electro-oxidation of formic acid in fuel cells

Shu-Hong LI, Yue ZHAO, Jian CHU, Wen-Wei LI, Han-Qing YU, Gang LIU, Yang-Chao TIAN

Frontiers of Environmental Science & Engineering 2013, Volume 7, Issue 3,   Pages 388-394 doi: 10.1007/s11783-012-0475-y

Abstract: Direct formic acid fuel cells are a promising portable power-generating device, and the development of efficient anodic catalysts is essential for such a fuel cell. In this work Pt-Bi nanoparticles supported on micro-fabricated gold wire array substrate were synthesized using an electrochemical deposition method for formic acid oxidation in fuel cells. The surface morphology and element components of the Pt-Bi/Au nanoparticles were characterized, and the catalytic activities of the three Pt-Bi/Au nanoparticle electrodes with different Pt/Bi ratios for formic acid oxidation were evaluated. It was found that Pt Bi /Au had a much higher catalytic activity than Pt Bi /Au and Pt Bi /Au, and Pt Bi /Au exhibited a current density of 2.7 mA·cm , which was 27-times greater than that of Pt/Au. The electro-catalytic activity of the Pt-Bi/Au electrode for formic acid oxidation increased with the increasing Bi content, suggesting that it would be possible to achieve an efficient formic acid oxidation on the low Pt-loading. Therefore, the Pt-Bi/Au electrode offers a promising catalyst with a high activity for direct oxidation of formic acid in fuel cells.

Keywords： catalyst     electrochemical deposition     formic acid oxidation     fuel cell     gold wire array     microfabrication    

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The synergic effects of highly selective bimetallic Pt-Pd/SAPO-41 catalysts for the

Guozhi Jia, Chunmu Guo, Wei Wang, Xuefeng Bai, Xiaomeng Wei, Xiaofang Su, Tong Li, Linfei Xiao, Wei Wu

Frontiers of Chemical Science and Engineering 2021, Volume 15, Issue 5,   Pages 1111-1124 doi: 10.1007/s11705-020-2031-9

Abstract: The hydroisomerization of -hexadecane over Pt-Pd bimetallic catalysts is an effective way to produceThis work reports a useful preparation method of bimetallic bifunctional catalysts by a co-impregnation

Keywords： SAPO-41 molecular sieve     Pt-Pd bimetallic site     bifunctional catalysts     n-hexadecane     hydroisomerization    

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Recent advances in SERS detection of perchlorate

Jumin Hao, Xiaoguang Meng

Frontiers of Chemical Science and Engineering 2017, Volume 11, Issue 3,   Pages 448-464 doi: 10.1007/s11705-017-1611-9

Abstract: Perchlorate has recently emerged as a widespread environmental contaminant of healthy concern. Development of novel detection methods for perchlorate with the potential for field use has been an urgent need. The investigation has shown that surface-enhanced Raman scattering (SERS) technique has great potential to become a practical analysis tool for the rapid screening and routine monitoring of perchlorate in the field, particularly when coupled with portable/handheld Raman spectrometers. In this review article, we summarize progress made in SERS analysis of perchlorate in water and other media with an emphasis on the development of SERS substrates for perchlorate detection. The potential of this technique for fast screening and field testing of perchlorate-contaminated environmental samples is discussed. The challenges and possible solutions are also addressed, aiming to provide a better understanding on the development directions in the research field.

Keywords： perchlorate     SERS     detection     substrate     modification     nanostructure    

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Simultaneous removal of trihalomethanes by bimetallic Ag/Zn: kinetics study

Ahmed H A DABWAN, Satoshi KANECO, Hideyuki KATSUMATA, Kiyoyuki EGUSA, Tohru SUZUKI, Kiyohisa OHTA,

Frontiers of Chemical Science and Engineering 2010, Volume 4, Issue 3,   Pages 322-327 doi: 10.1007/s11705-009-0261-y

Abstract: In the present work, bimetallic silver/zinc was applied into the degradation of trihalomethanes, THMscompounds may become the most important parameters affecting the degradation kinetics and efficiency by bimetallic

Keywords： reaction     first-order     dissociation     degradation reaction     aqueous    

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Title Author Date Type Operation

Facile synthesis of hierarchical flower-like Ag/Cu

Mengyun Wang, Shengbo Zhang, Mei Li, Aiguo Han, Xinli Zhu, Qingfeng Ge, Jinyu Han, Hua Wang

Journal Article

Ni-Co bimetallic catalyst for CH

Xiaohong LI, Jun AI, Wenying LI, Dongxiong LI

Journal Article

Enhanced activation of persulfate using mesoporous silica spheres augmented Cu–Al bimetallic oxide particles

Journal Article

Fabrication of bimetallic Cu–Zn adsorbents with high dispersion by using confined space for gas adsorptive

Journal Article

Removing polybrominated diphenyl ethers in pure water using Fe/Pd bimetallic nanoparticles

Min ZHANG,Jian LU,Zhencheng XU,Yiliang HE,Bo ZHANG,Song JIN,Brian BOMAN

Journal Article

Dechlorination of dichlorodiphenyltrichloroethane (DDT) by Fe/Pd bimetallic nanoparticles: Comparison

Kubra Ulucan-Altuntas, Eyup Debik

Journal Article

Enhanced activity of bimetallic Fe-Cu catalysts supported on ceria toward water gas shift reaction: synergistic

Journal Article

Mechanistic understanding of Cu-based bimetallic catalysts

You Han, Yulian Wang, Tengzhou Ma, Wei Li, Jinli Zhang, Minhua Zhang

Journal Article

Interfacial induction and regulation for microscale crystallization process: a critical review

Journal Article

Fabrication of titania thin film with composite nanostructure and its ability to photodegrade rhodamine

ZHANG Gaojie, WU Jinming, LIU Shaoguang, YAN Mi

Journal Article

Investigation of nanostructure of konjac-based water absorbents with atomic force microscopy

Shengrong GENG, Ruotai LIN, Mingli CHEN, Shaoyang LIU, Yifen WANG,

Journal Article

A Pt-Bi bimetallic nanoparticle catalyst for direct electro-oxidation of formic acid in fuel cells

Shu-Hong LI, Yue ZHAO, Jian CHU, Wen-Wei LI, Han-Qing YU, Gang LIU, Yang-Chao TIAN

Journal Article

The synergic effects of highly selective bimetallic Pt-Pd/SAPO-41 catalysts for the

Guozhi Jia, Chunmu Guo, Wei Wang, Xuefeng Bai, Xiaomeng Wei, Xiaofang Su, Tong Li, Linfei Xiao, Wei Wu

Journal Article

Recent advances in SERS detection of perchlorate

Jumin Hao, Xiaoguang Meng

Journal Article

Simultaneous removal of trihalomethanes by bimetallic Ag/Zn: kinetics study

Ahmed H A DABWAN, Satoshi KANECO, Hideyuki KATSUMATA, Kiyoyuki EGUSA, Tohru SUZUKI, Kiyohisa OHTA,

Journal Article