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New insight into effect of potential on degradation of Fe-N-C catalyst for ORR

Yanyan GAO, Manman QI, Liang HE, Haiping CHEN, Wenzhe LUO, Ming HOU, Zhigang SHAO

Frontiers in Energy 2021, Volume 15, Issue 2,   Pages 421-430 doi: 10.1007/s11708-021-0727-2

Abstract: In recent years, Fe-N-C catalyst is particularly attractive due to its high oxygen reduction reactionHowever, the durability problems still pose challenge to the application of Fe-N-C catalyst.Although considerable work has been done to investigate the degradation mechanisms of Fe-N-C catalystIn fact, the 2e pathway in the ORR process of Fe-N-C catalyst would result in the formation of H O ,In this paper, a new insight into the effect of potential on degradation of Fe-N-C catalyst was provided

Keywords： proton exchange membrane fuel cells (PEMFCs)     oxygen reduction reaction (ORR)     Fe-N-C catalyst     potential    

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Fe-Mn-sepiolite as an effective heterogeneous Fenton-like catalyst for the decolorization of reactive

Chengyuan SU,Weiguang LI,Xingzhe LIU,Xiaofei HUANG,Xiaodan YU

Frontiers of Environmental Science & Engineering 2016, Volume 10, Issue 1,   Pages 37-45 doi: 10.1007/s11783-014-0729-y

Abstract: A study of the decolorization of reactive brilliant blue in an aqueous solution using Fe-Mn-sepioliteThe Fourier transform infrared (FTIR) spectra of the catalyst showed bending vibrations of the Fe-O.The X-ray diffraction (XRD) patterns of the catalyst showed characteristic diffraction peaks of α-FeO , γ-Fe O and MnO.Moreover, the Fe-Mn-sepiolite catalyst had good stability for the degradation of reactive brilliant blue

Keywords： Fe-Mn-sepiolite catalyst     heterogeneous Fenton-like     reactive brilliant blue     homogeneous precipitation    

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Mass Transfer-Promoted Fe2+/Fe3+ Circulation Steered by 3D Flow-Through Co-Catalyst System Toward Sustainable

Weiyang Lv,Hao Li,Jinhui Wang,Lixin Wang,Zenglong Wu,Yuge Wang,Wenkai Song,Wenkai Cheng,Yuyuan Yao,

Engineering doi: 10.1016/j.eng.2023.06.010

Abstract: from the poor mass/electron transfer and non-durable promotion effect, giving rise to the sluggish Fe2+/Fe3+ cycle and low dynamic concentration of Fe2+ for ROS productionHerein, we present a three-dimensional (3D) macroscale co-catalyst functionalized with MoS2 to achieve ultra-efficient Fe2+ regeneration (equilibrium Fe2+ ratio of 82.4%Our findings highlight an innovative co-catalyst system design to expand the applicability of AOPs based

Keywords： Advanced oxidation processes     3D co-catalyst     Flow-through mode     Enhanced mass transfer     Complex wastewater    

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NO hydrogenation to NH over FeCu/TiO catalyst with improved activity

Frontiers of Chemical Science and Engineering 2023, Volume 17, Issue 12,   Pages 1973-1985 doi: 10.1007/s11705-023-2364-2

Abstract: Hence, developing an efficient and environmentally friendly catalyst is imperative.Notably, the optimized 10Fe-8Cu/TiO2 catalyst exhibited exceptional catalytic performance

Keywords： NO hydrogenation     synthetic ammonia     10Fe-xCu/TiO2     high selectivity    

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ion-exchanged K on the low-temperature hydrothermal stability of Cu/SAPO-34 and its synergic application with Fe

Chen Wang, Jun Wang, Jianqiang Wang, Meiqing Shen

Frontiers of Environmental Science & Engineering 2021, Volume 15, Issue 2, doi: 10.1007/s11783-020-1322-1

Abstract: . • Fe/Beta was used to compensate the low activity of Cu/SAPO-34 at high temperature. • The hybrid catalystswith KCu/SAPO-34 and Fe/Beta show a great potential for using.However, although the 0.7 wt% K catalyst maintained the same crystallinity, active site abundance, andlow-temperature SCR activity as the fresh catalyst upon aging, an apparent decrease in SCR activityTo compensate for the activity disadvantage of K-loaded Cu/SAPO-34 at high temperature, Fe/Beta catalysts

Keywords： Selective catalytic reduction     Cu/SAPO-34 catalyst     Ion-exchanged K     Low-temperature hydrothermal stability     Fe/Beta catalyst    

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Carbon nanotubes-incorporated MIL-88B-Fe as highly efficient Fenton-like catalyst for degradation of

Hang Zhang, Shuo Chen, Haiguang Zhang, Xinfei Fan, Cong Gao, Hongtao Yu, Xie Quan

Frontiers of Environmental Science & Engineering 2019, Volume 13, Issue 2, doi: 10.1007/s11783-019-1101-z

Abstract:

CNTs were incorporated into MIL-88B-Fe to get a new Fenton-like catalyst

Fe(II) was introduced in C@M to get a fast initiation

Fe(II) content in C@M was related with oxygen-containing

Keywords： Heterogeneous Fenton-like catalysts     MIL-88B-Fe     CNTs     Organic pollutants     Mechanism    

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Controllable Fe/HCS catalysts in the Fischer-Tropsch synthesis: Effects of crystallization time

Yifei Wang, Shouying Huang, Xinsheng Teng, Hongyu Wang, Jian Wang, Qiao Zhao, Yue Wang, Xinbin Ma

Frontiers of Chemical Science and Engineering 2020, Volume 14, Issue 5,   Pages 802-812 doi: 10.1007/s11705-019-1866-4

Abstract: Among iron carbides, Fe C, as an active phase, has barely been studied due to its thermodynamic instabilityHere, we fabricated a series of Fe C embedded in hollow carbon sphere (HCS) catalysts.investigate the relationship between the geometric structure of the HCS and the physic-chemical properties of Feactivity in the FTS due to its high porosity, appropriate electronic environment, and relatively high Fe

Keywords： Fischer–Tropsch synthesis     Fe-based catalyst     Fe2C     hollow carbon sphere     crystallization time    

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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.>3−Bi2MoO6 catalyst was proposed based on the band potential and quenching

Keywords： piezocatalysis     Fe2O3−Bi2MoO6     dye decomposition     ultrasonic    

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Research Trends in Fischer--Tropsch Catalysis for Coal to Liquids Technology

Emiel J. M. Hensen,Peng Wang,Wayne Xu

Frontiers of Engineering Management 2016, Volume 3, Issue 4,   Pages 321-330 doi: 10.15302/J-FEM-2016051

Abstract: In this brief paper, we review some pertinent issues about Fe- and Co-based FTS catalysts.Fe is better suited to convert synthesis gas derived from coal gasification into fuels.The authors limit themselves to noting some important trends in the research on Fe-based catalysts.are increasingly able to predict not only mechanism, reaction rates and selectivity but also optimum catalyst

Keywords： Fischer–Tropsch     FTS     CTL     Fe catalyst     iron carbide     computational modeling    

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The performance of nitrate-reducing Fe(II) oxidation processes under variable initial Fe/N ratios: The

Frontiers of Environmental Science & Engineering 2021, Volume 15, Issue 4, doi: 10.1007/s11783-020-1366-2

Abstract:

•Bacterially-mediated coupled N and Fe processes examined in incubation

Keywords： Denitrification     N2O emission     Fe(II) oxidation     Fe/N ratio     Fe minerals    

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Improved Oxygen Evolution Kinetics and Surface States Passivation of Ni-Bi Co-Catalyst for Letter

Ke Dang,Tuo Wang,Chengcheng Li,Jijie Zhang,Shanshan Liu,Jinlong Gong

Engineering 2017, Volume 3, Issue 3,   Pages 285-289 doi: 10.1016/J.ENG.2017.03.005

Abstract: surface kinetics enhancement and surface states passivation of nickel-borate (Ni-Bi) co-catalystfor a hematite (Fe2O3) photoanode.The Ni-Bi-modified Fe2O3 photoanode exhibits a cathodic onset potential

Keywords： Nickel-borate     Hematite     Oxygen evolution reaction     Co-catalyst    

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Cadmium removal mechanistic comparison of three Fe-based nanomaterials: Water-chemistry and roles ofFe dissolution

Frontiers of Environmental Science & Engineering 2022, Volume 16, Issue 12, doi: 10.1007/s11783-022-1586-8

Abstract:

● nZVI, S-nZVI, and nFeS were systematically compared for Cd(II) removal.

Keywords： Nano zero valent iron     Sulfided zero valent iron     FeS     Cd(II) immobilization     Fe dissolution    

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Synergistic effect of V and Fe in Ni/Fe/V ternary layered double hydroxides for efficient and durable

Frontiers of Chemical Science and Engineering 2023, Volume 17, Issue 1,   Pages 102-115 doi: 10.1007/s11705-022-2179-6

Abstract: Herein, via a one-pot hydrothermal method, Ni/Fe/V ternary layered double hydroxides (NiFeV-LDH) derivedBy changing the feeding ratio of Fe and V salts, the prepared ternary hydroxides were optimized.At an Fe:V ratio of 0.5:0.5, NiFeV-LDH exhibits outstanding OER activity superior to that of the binarythe third metal into bimetallic hydroxide layers: (a) Fe plays a crucial role as the active site; (b) electron-withdrawing V stabilizes the high valence state of Fe, thus accelerating the OER process;

Keywords： oxygen evolution reaction     electrocatalysts     ternary layered double hydroxides     long-term stability    

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Floret-like Fe–N nanoparticle-embedded porous carbon superstructures from a Fe-covalent triazine polymer

Frontiers of Chemical Science and Engineering 2023, Volume 17, Issue 5,   Pages 525-535 doi: 10.1007/s11705-022-2232-5

Abstract: Fe–Nx nanoparticles-embedded porous carbons with a desirable superstructure have attractedHerein, we employed Fe-coordinated covalent triazine polymer for the fabrication of Fe–Nxwithin the covalent triazine polymer interwork in high proportions contributes to the generation of Fe/N coordination and subsequent Fe–Nx nanoparticles.Owing to the utilization of NaCl crystals, the resultant Fe/N@CNF-800 which was generated by pyrolysis

Keywords： Fe–Nx nanoparticles     hypersaline-confinement conversion     floret-like carbon     covalent    

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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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Title Author Date Type Operation

New insight into effect of potential on degradation of Fe-N-C catalyst for ORR

Yanyan GAO, Manman QI, Liang HE, Haiping CHEN, Wenzhe LUO, Ming HOU, Zhigang SHAO

Journal Article

Fe-Mn-sepiolite as an effective heterogeneous Fenton-like catalyst for the decolorization of reactive

Chengyuan SU,Weiguang LI,Xingzhe LIU,Xiaofei HUANG,Xiaodan YU

Journal Article

Mass Transfer-Promoted Fe2+/Fe3+ Circulation Steered by 3D Flow-Through Co-Catalyst System Toward Sustainable

Weiyang Lv,Hao Li,Jinhui Wang,Lixin Wang,Zenglong Wu,Yuge Wang,Wenkai Song,Wenkai Cheng,Yuyuan Yao,

Journal Article

NO hydrogenation to NH over FeCu/TiO catalyst with improved activity

Journal Article

ion-exchanged K on the low-temperature hydrothermal stability of Cu/SAPO-34 and its synergic application with Fe

Chen Wang, Jun Wang, Jianqiang Wang, Meiqing Shen

Journal Article

Carbon nanotubes-incorporated MIL-88B-Fe as highly efficient Fenton-like catalyst for degradation of

Hang Zhang, Shuo Chen, Haiguang Zhang, Xinfei Fan, Cong Gao, Hongtao Yu, Xie Quan

Journal Article

Controllable Fe/HCS catalysts in the Fischer-Tropsch synthesis: Effects of crystallization time

Yifei Wang, Shouying Huang, Xinsheng Teng, Hongyu Wang, Jian Wang, Qiao Zhao, Yue Wang, Xinbin Ma

Journal Article

Piezocatalytic performance of FeO−BiMoO catalyst for dye degradation

Journal Article

Research Trends in Fischer--Tropsch Catalysis for Coal to Liquids Technology

Emiel J. M. Hensen,Peng Wang,Wayne Xu

Journal Article

The performance of nitrate-reducing Fe(II) oxidation processes under variable initial Fe/N ratios: The

Journal Article

Improved Oxygen Evolution Kinetics and Surface States Passivation of Ni-Bi Co-Catalyst for

Ke Dang,Tuo Wang,Chengcheng Li,Jijie Zhang,Shanshan Liu,Jinlong Gong

Journal Article

Cadmium removal mechanistic comparison of three Fe-based nanomaterials: Water-chemistry and roles ofFe dissolution

Journal Article

Synergistic effect of V and Fe in Ni/Fe/V ternary layered double hydroxides for efficient and durable

Journal Article

Floret-like Fe–N nanoparticle-embedded porous carbon superstructures from a Fe-covalent triazine polymer

Journal Article

Modeling nanostructured catalyst layer in PEMFC and catalyst utilization

Jiejing ZHANG, Pengzhen CAO, Li XU, Yuxin WANG

Journal Article