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Conversion of phenol to cyclohexane in the aqueous phase over Ni/zeolite bi-functional catalysts

Jimei Zhang, Fuping Tian, Junwen Chen, Yanchun Shi, Hongbin Cao, Pengge Ning, Shanshan Sun, Yongbing Xie

Frontiers of Chemical Science and Engineering 2021, Volume 15, Issue 2,   Pages 288-298 doi: 10.1007/s11705-020-1932-y

Abstract: A series of Ni/HZSM-5 and Ni/HIM-5 bi-functional catalysts were synthesized and applied to the aqueous-phasewere beneficial for dispersing Ni and forming small Ni particles, and the corresponding Ni/zeolite catalystImportantly, the Ni/HIM-5 bi-functional catalyst exhibited a high activity (98.3%) and high selectivityfor hydrocarbons (98.8%) when heated at 220°C for 1 h and is thus a new potential catalyst for the HDO

Keywords： aqueous-phase hydrodeoxygenation     phenol     hydrocarbons     Ni/HIM-5     bi-functional catalyst    

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Selective conversion of cellulose to hexitols over bi-functional Ru-supported sulfated zirconia and silica-zirconia

Zhiqiang Song,Hua Wang,Yufei Niu,Xiao Liu,Jinyu Han

Frontiers of Chemical Science and Engineering 2015, Volume 9, Issue 4,   Pages 461-466 doi: 10.1007/s11705-015-1543-1

Abstract: We report a process of selective conversion of microcrystalline cellulose to hexitols over bi-functional58.1% yield of hexitols and a 71.0% conversion of cellulose were achieved over Ru/SZSi(100:15)-773 catalystCompared with sulfated zirconia catalyst, sulfated silica-zirconia catalysts possessed a higher ratio

Keywords： hexitols     cellulose     hydrogenation     sulfated zirconia     ruthenium    

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The catalytic effect of both oxygen-bearing functional group and ash in carbonaceous catalyst on CH 4

Weidong ZHANG, Yongfa ZHANG,

Frontiers of Chemical Science and Engineering 2010, Volume 4, Issue 2,   Pages 147-152 doi: 10.1007/s11705-009-0242-1

Abstract: A kind of new catalyst—carbonaceous catalyst—for CH-CO reformation has been developed inThe effect of both oxygen-bearing functional group such as phenolic hydroxyl, carbonyl, carboxyl, andIt has been found that the carbonaceous catalyst is an efficient catalyst on CO-CH reforming.With the decrease of oxygen-bearing functional group, the catalytic activity of carbonaceous catalystThe oxygen-bearing functional groups play a significant role in the carbonaceous-catalyzed CO-CH reforming

Keywords： oxygen-bearing functional     carboxyl     phenolic hydroxyl     CH-CO reformation     CO-CH reforming    

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Piezocatalytic performance of FeO−BiMoO catalyst for dye degradation

Frontiers of Chemical Science and Engineering 2023, Volume 17, Issue 6,   Pages 716-725 doi: 10.1007/s11705-022-2265-9

Abstract: A Fe2O3−Bi2MoO6 heterojunction was synthesized via a hydrothermalThe various factors that affected the piezocatalytic property of composite catalyst were studied.The highest rhodamine B degradation rate of 96.6% was attained on the 3% Fe2O3−Bi2MoO6 composite catalyst under 60 min of ultrasonic vibration.2MoO6 catalyst was proposed based on the band potential and quenching effect of

Keywords： piezocatalysis     Fe2O3−Bi2MoO6     dye decomposition     ultrasonic    

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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: In this work Pt-Bi nanoparticles supported on micro-fabricated gold wire array substrate were synthesizedcatalytic activities of the three Pt-Bi/Au nanoparticle electrodes with different Pt/Bi ratios for formicIt was found that Pt Bi /Au had a much higher catalytic activity than Pt Bi /Au and Pt Bi /Au, and PtBi /Au exhibited a current density of 2.7 mA·cm , which was 27-times greater than that of Pt/Au.Therefore, the Pt-Bi/Au electrode offers a promising catalyst with a high activity for direct oxidation

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

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Probing the catalytic activity of M-N

Fan Ge, Qingan Qiao, Xin Chen, You Wu

Frontiers of Chemical Science and Engineering 2021, Volume 15, Issue 5,   Pages 1206-1216 doi: 10.1007/s11705-020-2017-7

Abstract: catalytic performance of M-N O (M= Fe, Co, and Ni; = 1–4) has been explored via the detailed density functionalSuch activities are higher than the precious Pt catalyst.the density of states reveal that the O doping can improve the electronic structure of the original catalyst

Keywords： M-N-C catalyst     oxygen doping     oxygen reduction reaction     catalytic activity     density functional theory    

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Development and applications of functional gene microarrays in the analysis of the functional diversity

Zhili HE, Joy D. VAN NOSTRAND, Ye DENG, Jizhong ZHOU

Frontiers of Environmental Science & Engineering 2011, Volume 5, Issue 1,   Pages 1-20 doi: 10.1007/s11783-011-0301-y

Abstract: Functional gene arrays (FGAs) are a special type of microarrays containing probes for key genes involvedin microbial functional processes, such as biogeochemical cycling of carbon, nitrogen, sulfur, phosphorusSeveral generations of GeoChip have been developed and applied to investigate the functional diversity

Keywords： functional gene arrays (FGAs)     GeoChip     microbial communities     functional diversity/composition/structure    

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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    

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Topology optimization of piezoelectric bi-material actuators with velocity feedback control

Mariana MORETTI, Emílio C. N. SILVA

Frontiers of Mechanical Engineering 2019, Volume 14, Issue 2,   Pages 190-200 doi: 10.1007/s11465-019-0537-y

Abstract: The bi-material and multifunctional concepts are considered for the design of a controlled piezoelectricThe bi-material piezoelectric actuator (BPEA) has its metallic host layer designed by the TOM, which

Keywords： topology optimization method     bi-material piezoactuator     active velocity feedback control     time-domain transient    

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Fluorescent probes and functional materials for biomedical applications

Frontiers of Chemical Science and Engineering 2022, Volume 16, Issue 10,   Pages 1425-1437 doi: 10.1007/s11705-022-2163-1

Abstract: Here, we highlight examples of fluorescent probes and functional materials for biological applications

Keywords： fluorescent probes     imaging     cell     biomedicine     biomolecules    

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Bi-modes alternation stepping ultrasonic motors

JIN Jiamei, ZHAO Chunsheng

Frontiers of Mechanical Engineering 2008, Volume 3, Issue 1,   Pages 101-105 doi: 10.1007/s11465-008-0018-1

Abstract: Two-phase sinusoidal signals corresponding to the two modal frequencies drive the motor bi-direction

Keywords： miss-step     bi-direction     Two-phase sinusoidal     positioning     accumulative    

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Acoustic characteristics of bi-directional turbines for thermoacoustic generators

Dongdong LIU, Yanyan CHEN, Wei DAI, Ercang LUO

Frontiers in Energy 2022, Volume 16, Issue 6,   Pages 1027-1036 doi: 10.1007/s11708-020-0702-3

Abstract: Bi-directional turbines combined with rotary motors may be a feasible option for developing high powerA general expression for the acoustic characteristics of the bi-directional turbine was proposed basedThe good fit of the correlations shows that these characteristics are valid for describing the bi-directional

Keywords： thermoacoustic power generator     acoustic characteristics     bi-directional impulse turbine     energy conversion    

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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    

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Cu-doped Bi/Bi2WO6 catalysts for efficient N2 fixation by photocatalysis

Frontiers of Chemical Science and Engineering 2023, Volume 17, Issue 10,   Pages 1412-1422 doi: 10.1007/s11705-023-2312-1

Abstract: In this paper, Cu-doped Bi2WO6 was synthesized via a solvothermal method and appliedthat the synthesized photocatalyst is actually Bi/Cu-Bi2WO6 composite.of Bi2WO6.The optimized NH3 generation rates of Bi/Cu-Bi2WO6 reached 624 and 243/Bi2WO6, respectively.

Keywords： Bi2WO6     Cu doping     work function     photocatalytic N2 fixation     charge    

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Modeling the impact of uncertainty in emissions trading markets with bankable permits

Yongliang ZHANG, Bing ZHANG, Jun BI, Pan HE

Frontiers of Environmental Science & Engineering 2013, Volume 7, Issue 2,   Pages 231-241 doi: 10.1007/s11783-012-0431-x

Abstract: The various forms of uncertainty that firms may face in bankable emission permit trading markets will affect firms’ decision making as well as their market performance. This research explores the effect of increased uncertainty over future input costs and output prices on the temporal distribution of emission. In a dynamic programming setting, the permit price is a convex function of stochastic prices of coal and electricity. Increased uncertainty about future market conditions increases the expected permit price and causes a risk neutral firm to reduce ex ante emissions in order to smooth out marginal abatement costs over time. Finally, safety valves, both low-side and high-side, are suggested to reduce the impact of uncertainty in bankable emission trading markets.

Keywords： uncertainty     bankable     emission trading     market performance    

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Title Author Date Type Operation

Conversion of phenol to cyclohexane in the aqueous phase over Ni/zeolite bi-functional catalysts

Jimei Zhang, Fuping Tian, Junwen Chen, Yanchun Shi, Hongbin Cao, Pengge Ning, Shanshan Sun, Yongbing Xie

Journal Article

Selective conversion of cellulose to hexitols over bi-functional Ru-supported sulfated zirconia and silica-zirconia

Zhiqiang Song,Hua Wang,Yufei Niu,Xiao Liu,Jinyu Han

Journal Article

The catalytic effect of both oxygen-bearing functional group and ash in carbonaceous catalyst on CH 4

Weidong ZHANG, Yongfa ZHANG,

Journal Article

Piezocatalytic performance of FeO−BiMoO catalyst for dye degradation

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

Probing the catalytic activity of M-N

Fan Ge, Qingan Qiao, Xin Chen, You Wu

Journal Article

Development and applications of functional gene microarrays in the analysis of the functional diversity

Zhili HE, Joy D. VAN NOSTRAND, Ye DENG, Jizhong ZHOU

Journal Article

Modeling nanostructured catalyst layer in PEMFC and catalyst utilization

Jiejing ZHANG, Pengzhen CAO, Li XU, Yuxin WANG

Journal Article

Topology optimization of piezoelectric bi-material actuators with velocity feedback control

Mariana MORETTI, Emílio C. N. SILVA

Journal Article

Fluorescent probes and functional materials for biomedical applications

Journal Article

Bi-modes alternation stepping ultrasonic motors

JIN Jiamei, ZHAO Chunsheng

Journal Article

Acoustic characteristics of bi-directional turbines for thermoacoustic generators

Dongdong LIU, Yanyan CHEN, Wei DAI, Ercang LUO

Journal Article

Oxidant or catalyst for oxidation?

Jianzhi Huang, Huichun Zhang

Journal Article

Cu-doped Bi/Bi2WO6 catalysts for efficient N2 fixation by photocatalysis

Journal Article

Modeling the impact of uncertainty in emissions trading markets with bankable permits

Yongliang ZHANG, Bing ZHANG, Jun BI, Pan HE

Journal Article