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Shape selective catalysis in methylation of toluene: Development, challenges and perspectives

Jian Zhou, Zhicheng Liu, Yangdong Wang, Dejin Kong, Zaiku Xie

Frontiers of Chemical Science and Engineering 2018, Volume 12, Issue 1, Pages 103-112 doi: 10.1007/s11705-017-1671-x

Abstract: “molecular engineering” process to realize directional conversion of toluene/methanol molecules by selectivecatalysis in complicated methylation system.history of methylation catalysts and reaction mechanism, and the effect of reaction condition in -selectiveIf constructing -xylene as the single target product, the major challenge to develop -selective tolueneand afterwards covering external acid sites by surface modification to get short “micro-tunnels” with shape

Keywords： shape selective catalysis methylation of toluene

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Morphology selective construction of

Maher Darwish, Ali Mohammadi, Navid Assi, Samer Abuzerr, Youssef Alahmad

Frontiers of Chemical Science and Engineering 2020, Volume 14, Issue 4, Pages 561-578 doi: 10.1007/s11705-019-1808-1

Abstract: Controlled growth of Bi WO nanorods with exposed [0 0 1] facets and the fabrication of an Fe O -Bi WO magnetic composite by a microwave-assisted polyol process, were achieved in this study. The adsorptivity and photocatalytic performance of the composite toward sunset yellow dye degradation were greatly enhanced by the -cyclodextrin cavities on its surface, firmly anchored through a cetyltrimethylammonium bromide linkage. A series of examinations and characterizations were carried out to determine the influence of various factors on the morphological modulation-photocatalytic behavior of the pure Bi WO prior to final functionalization. Changing the pH of the precursor solution impacted the formation of 0D, 2D, and 3D structures; however, the presence of hexamethylenetetramine surfactant induced the development of 1D nanorod structure. A reasonable crystal growth mechanism was proposed to elucidate the formation process. Conversely, the mechanism of the activity enhancement of -cyclodextrin functionalized Fe O -Bi WO , compared to that of the non-functionalized samples, could be realized with the assistance of chemical trapping experiments on sunset yellow, and was confirmed on the colorless antibiotic (sulfamethoxazole). The high performance and durability of this composite can be attributed to the facet-dependent activity, large adsorption capacity due to inclusion interactions, enhanced visible light absorption, and efficient charge separation.

Keywords： β-cyclodextrin Bi₂WO₆ shape controlled nanorod sunset yellow

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The abatement of major pollutants in air and water by environmental catalysis

Junhua LI, Hong HE, Chun HU, Jincai ZHAO

Frontiers of Environmental Science & Engineering 2013, Volume 7, Issue 3, Pages 302-325 doi: 10.1007/s11783-013-0511-6

Abstract: reports the research progress in the abatement of major pollutants in air and water by environmental catalysisFor air pollution control, the selective catalytic reduction of NO (SCR) by ammonia and hydrocarbonsThe oxidation of Volatile organic compounds (VOCs) by photo- and thermal- catalysis for indoor air qualityIn addition, the mechanism for the procedure of abatement of air and water pollutants by catalysis isFinally, a research orientation on environment catalysis for the treatment of air pollutants and wastewater

Keywords： air pollution control wastewater treatment DeNO_x selective catalytic reduction(SCR) Volatile organic compounds (VOCs) environmental catalysis

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Recent advances in cycloaddition of CO with epoxides: halogen-free catalysis and mechanistic insights

Frontiers of Chemical Science and Engineering 2023, Volume 17, Issue 12, Pages 1879-1894 doi: 10.1007/s11705-023-2354-4

Abstract: In this review, we systematically discussed the halogen-free catalysis for cycloaddition of CO_2<

Keywords： carbon dioxide halogen-free catalysis cyclic carbonate mechanistic insight

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An extended thermo-mechanically coupled algorithm for simulation of superelasticity and shape memoryeffect in shape memory alloys

S. HASHEMI,H. AHMADIAN,S. MOHAMMADI

Frontiers of Structural and Civil Engineering 2015, Volume 9, Issue 4, Pages 466-477 doi: 10.1007/s11709-015-0300-3

Abstract: Thermo-mechanical coupling in shape memory alloys is a very complicated phenomenon.lead to temperature-dependent variation of its mechanical behavior in the forms of superelasticity and shapealgorithm is proposed based on the original model of Lagoudas to efficiently model both superelasticity and shape

Keywords： shape memory alloy thermo-mechanical coupling superplasticity shape memory effect

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Application of heterogeneous catalysis to biodiesel synthesis using microalgae oil

Frontiers of Environmental Science & Engineering 2021, Volume 15, Issue 5, doi: 10.1007/s11783-020-1343-9

Abstract:

• Microalgae oil application for biodiesel synthesis is discussed.

Keywords： Biodiesel Heterogeneous catalysis Transesterification Microalgae oil

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Plasma-catalysis: Is it just a question of scale?

J. Christopher Whitehead

Frontiers of Chemical Science and Engineering 2019, Volume 13, Issue 2, Pages 264-273 doi: 10.1007/s11705-019-1794-3

Abstract: It is concluded that plasma-catalysis is best regarded as conventional catalysis perturbed by the presenceThe sometimes used description “plasma-activated catalysis” is an apt one.

Keywords： plasma catalysis plasma-activated catalysis non-thermal plasma CO₂ conversion

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Frontiers of Catalysis Chemistry and Technology

Frontiers of Chemical Science and Engineering 2018, Volume 12, Issue 1, Pages 1-2 doi: 10.1007/s11705-018-1704-0

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Scaling up of cluster beam deposition technology for catalysis application

Frontiers of Chemical Science and Engineering 2021, Volume 15, Issue 6, Pages 1360-1379 doi: 10.1007/s11705-021-2101-7

Abstract: the low throughput of the physical synthesis method has severely constrained its wider adoption for catalysis

Keywords： nanoparticle cluster cluster beam deposition magnetron sputtering heterogeneous catalysis

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Preface to special issue on “Advanced Materials and Catalysis”

Frontiers of Chemical Science and Engineering 2021, Volume 15, Issue 6, Pages 1357-1359 doi: 10.1007/s11705-021-2119-x

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A novel shape memory alloy actuated soft gripper imitated hand behavior

Frontiers of Mechanical Engineering 2022, Volume 17, Issue 4, doi: 10.1007/s11465-022-0700-8

Abstract: The limited length shrinkage of shape memory alloy (SMA) wire seriously limits the motion range of SMA-basedwithout silicone gel was designed based on pre bent SMA wire, and the finger was back to its original shape

Keywords： shape memory alloy (SMA) pre bent wire gripper grasping mode lightweight

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Size and shape effects of MnFeO nanoparticles as catalysts for reductive degradation of dye pollutants

Frontiers of Environmental Science & Engineering 2021, Volume 15, Issue 5, Pages 108-171 doi: 10.1007/s11783-021-1396-4

Abstract: It was found that the catalytic activities were dependent on the size and shape of the MnFe_{2shape effects of MnFe₂O₄ nanoparticles demonstrated in this work not}

Keywords： Dye degradation MnFe₂O₄ nanoparticles Size and shape-control

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Preface to special issue on “Engineering Nanostructured Materials for Advanced Energy and Environmental Catalysis

Frontiers of Chemical Science and Engineering 2023, Volume 17, Issue 11, Pages 1621-1622 doi: 10.1007/s11705-023-2365-1

Abstract: Preface to special issue on “Engineering Nanostructured Materials for Advanced Energy and Environmental Catalysis

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Temperature effects of shape memory alloys (SMAs) in damage control design of steel portal frames

Xiaoqun LUO, Hanbin GE, Tsutomu USAMI

Frontiers of Structural and Civil Engineering 2012, Volume 6, Issue 4, Pages 348-357 doi: 10.1007/s11709-012-0176-4

Abstract: present study is to analytically investigate temperature effects of an axial-type seismic damper made of shape

Keywords： damage control design shape memory alloy temperature effect

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Recent advances in selective acetylene hydrogenation using palladium containing catalysts

Alan J. McCue, James A. Anderson

Frontiers of Chemical Science and Engineering 2015, Volume 9, Issue 2, Pages 142-153 doi: 10.1007/s11705-015-1516-4

Abstract: Recent advances with Pd containing catalysts for the selective hydrogenation of acetylene are describedActivity/selectivity of Pd catalysts can be modified by controlling particle shape/morphology or immobilisation

Keywords： acetylene ethylene selective hydrogenation palladium bimetallic