Resource Type

Journal Article 305

Conference Videos 4

Year

2023 31

2022 27

2021 29

2020 25

2019 13

2018 11

2017 15

2016 9

2015 13

2014 12

2013 22

2012 11

2011 12

2010 15

2009 12

2008 13

2007 14

2006 3

2005 4

2004 2

open ︾

Keywords

catalyst 11

Catalyst 6

carbon dioxide 4

catalytic activity 4

type 2 diabetes 4

type 2 diabetes mellitus 4

Adsorption 3

China 3

COVID-19 2

Selective catalytic reduction 2

biodiesel 2

biomass 2

catalysis 2

conversion 2

durability 2

high selectivity 2

hydroxyl radical 2

inflammation 2

new type 2

open ︾

Search scope:

排序： Display mode:

Influence of crystalline phase of Li-Al-O oxides on the activity of Wacker-type catalysts in dimethyl

Yadong GE, Yuanyuan DONG, Shengping WANG, Yujun ZHAO, Jing LV, Xinbin MA

Frontiers of Chemical Science and Engineering 2012, Volume 6, Issue 4,   Pages 415-422 doi: 10.1007/s11705-012-1214-4

Abstract: The catalysts supported on LiAl O (spinel) for vapor phase synthesis of dimethyl carbonate (DMC) from methyl nitrite (MN) have been studied. Their catalytic activities on supports prepared by different methods were evaluated in a continuous reactor. The samples were characterized by powder X-ray diffraction, N adsorption-desorption isotherms, fourier transform infrared spectroscopy and temperature-programmed reduction of H . Li/Al molar ratio and calcination temperature greatly influence the structure of crystalline phase of Li-Al-O oxides. Desirable LiAl O (spinel) was formed at 800°C, while LiAl O (primitive cube) formed at 900°C is undesirable for the reaction. A high Li/Al molar ratio, which was related with LiAlO , also slowed the reaction rate. The electron transfer ability and the interaction with active component are the important properties of the spinel-based supports. The CuCl -PdCl /LiAl O (spinel) with better electron transfer ability and low Pd reduction temperature exhibited a better catalytic ability.

Keywords： Wacker-type catalyst     dimethyl carbonate     methyl nitrite     spinel    

HTML PDF Collect

Rosin side chain type catalyst-free vitrimers with high cross-link density, mechanical strength, and

Frontiers of Chemical Science and Engineering 2023, Volume 17, Issue 9,   Pages 1267-1279 doi: 10.1007/s11705-022-2291-7

Abstract: In this study, hydrogenated rosin was adopted for preparing hydrogenated rosin side-chain type diacids, which were reacted with mixed epoxy to obtain rosin side-chain type vitrimers.

Keywords： vitrimers     rosin     catalyst-free     high mechanical properties     dynamic transesterification reaction    

HTML PDF Collect

A new method for the synthesis of molybdovanadophosphoric heteropoly acids and their catalytic activities

ZHANG Fumin, GUO Maiping, GE Hanqing, WANG Jun

Frontiers of Chemical Science and Engineering 2007, Volume 1, Issue 3,   Pages 296-299 doi: 10.1007/s11705-007-0054-0

Abstract: diffraction (XRD) and infrared (IR) spectroscopy indicated that V ions substituted for Mo ions in Keggin-typeThe as-synthesized samples were found to be an efficient catalyst for the hydroxylation of benzene which

Keywords： conversion     heteropoly     Characterization     efficient catalyst     Keggin-type phosphomolybdic    

HTML PDF Collect

Modeling nanostructured catalyst layer in PEMFC and catalyst utilization

Jiejing ZHANG, Pengzhen CAO, Li XU, Yuxin WANG

Frontiers of Chemical Science and Engineering 2011, Volume 5, Issue 3,   Pages 297-302 doi: 10.1007/s11705-011-1201-1

Abstract: A lattice model of the nanoscaled catalyst layer structure in proton exchange membrane fuel cells (PEMFCThe model takes into account all the four components in a typical PEMFC catalyst layer: platinum (Pt)elemental voxels in the lattice were set fine enough so that each average sized Pt particulate in Pt/C catalystCatalyst utilization in the modeled catalyst layer was calculated by counting up the number of facets, on catalyst utilization were investigated and discussed.

Keywords： catalyst layer     PEM fuel cell     lattice model     Monte Carlo method     catalyst utilization    

HTML PDF Collect

New practice in semaglutide on type-2 diabetes and obesity: clinical evidence and expectation

Frontiers of Medicine 2022, Volume 16, Issue 1,   Pages 17-24 doi: 10.1007/s11684-021-0873-2

Abstract: Obesity is an important risk factor of type 2 diabetes (T2D), which has become an important factor threatening

Keywords： semaglutide     type 2 diabetes     obesity    

HTML PDF Collect

Oxidant or catalyst for oxidation?

Jianzhi Huang, Huichun Zhang

Frontiers of Environmental Science & Engineering 2019, Volume 13, Issue 5, doi: 10.1007/s11783-019-1158-8

Abstract: Manganese oxides (MnOx) have been demonstrated to be effective materials to activate Oxone (i.e., PMS) to degrade various contaminants. However, the contribution of direct oxidation by MnOx to the total contaminant degradation under acidic conditions was often neglected in the published work, which has resulted in different and even conflicting interpretations of the reaction mechanisms. Here, the role of MnOx (as both oxidants and catalysts) in the activation of Oxone was briefly discussed. The findings offered new insights into the reaction mechanisms in PMS-MnOx and provided a more accurate approach to examine contaminant degradation for water/wastewater treatment.

Keywords： Peroxymonosulfate     Manganese oxides     Catalyst     Oxidant    

HTML PDF Collect

Monte Carlo simulation of the PEMFC catalyst layer

WANG Hongxing, CAO Pengzhen, WANG Yuxin

Frontiers of Chemical Science and Engineering 2007, Volume 1, Issue 2,   Pages 146-150 doi: 10.1007/s11705-007-0027-3

Abstract: of the polymer electrolyte membrane fuel cell (PEMFC) is greatly controlled by the structure of the catalystLow catalyst utilization is still a significant obstacle to the commercialization of the PEMFC.on the catalyst utilization and the performance of the PEMFC.The model can predict the effects of some catalyst layer components, such as Pt/C catalyst, electrolyteand gas pores, on the utilization of the catalyst and the cell performance.

Keywords： catalyst utilization     PEMFC     commercialization     Pt/C catalyst     conduction    

HTML PDF Collect

Dendritic BiVO4 decorated with MnOx co-catalyst as an efficient hierarchical catalyst for photocatalytic

Jin Yang, Xuelian Liu, Hongbin Cao, Yanchun Shi, Yongbing Xie, Jiadong Xiao

Frontiers of Chemical Science and Engineering 2019, Volume 13, Issue 1,   Pages 185-191 doi: 10.1007/s11705-018-1713-z

Abstract: An appropriate co-catalyst can significantly promote the photocatalytic efficacy, but this has been seldomThis work provides a new direction of catalyst preparation and pushes forward the application of photocatalytic

Keywords： manganese oxide     bismuth vanadium tetraoxide     photocatalytic ozonation     hydroxyl radical     co-catalyst    

HTML PDF Collect

Insight into the promotion mechanism of activated carbon on the monolithic honeycomb red mud catalyst

Frontiers of Environmental Science & Engineering 2021, Volume 15, Issue 5, doi: 10.1007/s11783-020-1337-7

Abstract: ListItem>

• Activated carbon was proposed to be an efficient accelerant for molded red mud catalyst

Keywords： NOx     Selective catalytic reduction     Iron-based catalyst     Red mud     Monolithic catalyst    

HTML PDF Collect

Direct synthesis of diphenyl carbonate over heterogeneous catalyst: effects of structure of substitutedperovskite carrier on the catalyst activities

WU Guangwen, JIN Fang, WU Yuxin, ZHANG Guangxu, LI Dinghuo, WANG Cunwen, MA Peisheng

Frontiers of Chemical Science and Engineering 2007, Volume 1, Issue 1,   Pages 59-64 doi: 10.1007/s11705-007-0012-x

Abstract: The perovskite-type compound LaMnO was substituted for the part of La in position A and for the part

Keywords： photoelectron spectroscopy     diphenyl carbonate     proportion     diffraction     perovskite    

HTML PDF Collect

Personalized medicine of type 2 diabetes

Weiping Jia

Frontiers of Medicine 2013, Volume 7, Issue 1,   Pages 1-3 doi: 10.1007/s11684-013-0241-y

HTML PDF Collect

Pd nano-catalyst supported on biowaste-derived porous nanofibrous carbon microspheres for efficient catalysis

Frontiers of Chemical Science and Engineering 2023, Volume 17, Issue 9,   Pages 1289-1300 doi: 10.1007/s11705-023-2299-7

Abstract: O-containing groups, as carriers for the manufacture of a highly dispersed, efficient and stable Pd nano-catalystarea could promote the transport of electrons between NCM and Pd, thereby endowing NCM supported Pd catalystThe NCM supported Pd catalyst was employed in the degradation of some representative dyes and the chemoselective

Keywords： biowaste chitin     nanofibrous     palladium     nano-catalyst     catalysis    

HTML PDF Collect

Advanced materials: adsorbent and catalyst for environmental application

Junhua LI, Shubo DENG

Frontiers of Environmental Science & Engineering 2013, Volume 7, Issue 3,   Pages 301-301 doi: 10.1007/s11783-013-0529-9

HTML PDF Collect

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 adsorptionto the CH -CO -TPSR, there were 80.9% and 81.5% higher CH and CO conversion over Ni-Co/Al O -ZrO catalystThe high activity and excellent anti-coking of the Ni-Co/Al O -ZrO catalyst were closely related to

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

HTML PDF Collect

Sulfonic acid-functionalized mesoporous silica catalyst with different morphology for biodiesel production

Frontiers of Chemical Science and Engineering 2022, Volume 16, Issue 8,   Pages 1198-1210 doi: 10.1007/s11705-021-2133-z

Abstract: The effect of various reaction parameters such as catalyst concentration, acid/alcohol molar ratio, catalystAdditionally, the catalyst was regenerated and reused up to three cycles without any significant loss

Keywords： solid acid catalyst     mesoporous silica     sulfonic acid     biodiesel     esterification     oleic acid    

HTML PDF Collect

Title Author Date Type Operation

Influence of crystalline phase of Li-Al-O oxides on the activity of Wacker-type catalysts in dimethyl

Yadong GE, Yuanyuan DONG, Shengping WANG, Yujun ZHAO, Jing LV, Xinbin MA

Journal Article

Rosin side chain type catalyst-free vitrimers with high cross-link density, mechanical strength, and

Journal Article

A new method for the synthesis of molybdovanadophosphoric heteropoly acids and their catalytic activities

ZHANG Fumin, GUO Maiping, GE Hanqing, WANG Jun

Journal Article

Modeling nanostructured catalyst layer in PEMFC and catalyst utilization

Jiejing ZHANG, Pengzhen CAO, Li XU, Yuxin WANG

Journal Article

New practice in semaglutide on type-2 diabetes and obesity: clinical evidence and expectation

Journal Article

Oxidant or catalyst for oxidation?

Jianzhi Huang, Huichun Zhang

Journal Article

Monte Carlo simulation of the PEMFC catalyst layer

WANG Hongxing, CAO Pengzhen, WANG Yuxin

Journal Article

Dendritic BiVO4 decorated with MnOx co-catalyst as an efficient hierarchical catalyst for photocatalytic

Jin Yang, Xuelian Liu, Hongbin Cao, Yanchun Shi, Yongbing Xie, Jiadong Xiao

Journal Article

Insight into the promotion mechanism of activated carbon on the monolithic honeycomb red mud catalyst

Journal Article

Direct synthesis of diphenyl carbonate over heterogeneous catalyst: effects of structure of substitutedperovskite carrier on the catalyst activities

WU Guangwen, JIN Fang, WU Yuxin, ZHANG Guangxu, LI Dinghuo, WANG Cunwen, MA Peisheng

Journal Article

Personalized medicine of type 2 diabetes

Weiping Jia

Journal Article

Pd nano-catalyst supported on biowaste-derived porous nanofibrous carbon microspheres for efficient catalysis

Journal Article

Advanced materials: adsorbent and catalyst for environmental application

Junhua LI, Shubo DENG

Journal Article

Ni-Co bimetallic catalyst for CH

Xiaohong LI, Jun AI, Wenying LI, Dongxiong LI

Journal Article

Sulfonic acid-functionalized mesoporous silica catalyst with different morphology for biodiesel production

Journal Article