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Bimetallic Ni-Fe catalysts derived from layered double hydroxides for CO methanation from syngas

Honggui Tang, Shuangshuang Li, Dandan Gong, Yi Guan, Yuan Liu

Frontiers of Chemical Science and Engineering 2017, Volume 11, Issue 4,   Pages 613-623 doi: 10.1007/s11705-017-1664-9

Abstract: Nanoparticles of Ni-Fe alloy were supported on mixed oxides of aluminium and magnesium after calcinationThe results show that the Ni-Fe alloy catalysts exhibit better catalytic performance than monometalliccatalysts except for the Ni4Fe-red catalyst.selectivity (over 95% at 280–350 °C), owing to the formation of Ni-Fe alloy.The strong interaction between Ni and Fe element in alloy and surface distribution of Fe element not

Keywords： methanation     layered double hydroxide     bimetal Ni-Fe alloy     sintering     carbon deposition    

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Bamboo-like -doped carbon nanotubes encapsulating M(Co, Fe)-Ni alloy for electrochemical production of

Frontiers of Chemical Science and Engineering 2022, Volume 16, Issue 4,   Pages 498-510 doi: 10.1007/s11705-021-2082-6

Abstract: Herein, a series of N-doped carbon nanotubes encapsulating binary alloy nanoparticles (MxNi-NCNT, M= Fe, Co) were successfully fabricated through the co-pyrolysis of melamine andThe MxNi-NCNT samples exhibited bamboo-like nanotubular structures with a large specificTheir electrocatalytic performance for syngas production can be tuned by changing the alloy compositionsand Co2Ni-NCNT, respectively, over a potential window of –0.8 to –1.2 V versus the

Keywords： electrochemical reduction of CO2     syngas     N-doped carbon nanotubes     encapsulated alloy    

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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) derivedfrom Ni foam are fabricated to work as highly active and durable electrocatalysts for OER.By 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

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

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Topology optimization and seismic collapse assessment of shape memory alloy (SMA)-braced frames: Effectivenessof Fe-based SMAs

Aydin HASSANZADEH; Saber MORADI

Frontiers of Structural and Civil Engineering 2022, Volume 16, Issue 3,   Pages 281-301 doi: 10.1007/s11709-022-0807-3

Abstract: This paper presents a seismic topology optimization study of steel braced frames with shape memory alloyOptimal SMA-braced frames (SMA-BFs) with either Fe-based SMA or NiTi braces are determined in a performance-basedThe results demonstrate that Fe-based SMA-BFs exhibit higher collapse capacity and more uniform distributionIn addition to a lower unit price compared to NiTi, Fe-based SMAs reduce SMA material usage.In frames with Fe-based SMA braces, the SMA usage is reduced by up to 80%.

Keywords： topology optimization     shape memory alloy     Fe-based SMA     steel braced frames     performance-based seismic    

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Ultrafine Fe-modulated Ni nanoparticles embedded within nitrogen-doped carbon from Zr-MOFs-confined conversion

Frontiers of Chemical Science and Engineering 2022, Volume 16, Issue 7,   Pages 1114-1124 doi: 10.1007/s11705-021-2087-1

Abstract: In this study, ultrafine Fe-modulated Ni nanoparticles embedded in a porous Ni-doped carbon matrix weremetal-organic-frameworks, in which 2,2′-bipyridine-5,5′-dicarboxylate operating as a ligand can coordinate with Ni2+ and Fe3+.This strategy allows formation of Fe-modulated Ni nanoparticles with a uniform dimension of about 2 nm

Keywords： metal-organic framework     pyrolysis     ultrafine     Fe-modulated Ni nanoparticles     oxygen evolution reaction    

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Carbon-coated Ni-Co alloy catalysts: preparation and performance for aqueous phase hydrodeoxygenation

Frontiers of Chemical Science and Engineering 2022, Volume 16, Issue 3,   Pages 443-460 doi: 10.1007/s11705-021-2079-1

Abstract: Carbon-coated Ni, Co and Ni-Co alloy catalysts were prepared by the carbonization of the metal dopedThe metallic Ni, Co, and Ni-Co alloy particles (mainly 10–12 nm) were uniformly distributed in carbonA charge transfer from Ni to Co appeared in the Ni-Co alloy.Compared with those of metallic Ni and Co, the d-band center of the Ni-Co alloy shifted away fromThe Ni-Co@C catalysts gave higher activity than the Ni@C and Co@C catalysts, and the yields of n

Keywords： Stöber method     carbon-coated Ni-Co alloy     in-situ hydrodeoxygenation     methyl palmitate     decarbonylation    

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Zinc modification of Ni-Ti as efficient NiZnTi catalysts with both geometric and electronic improvements

Frontiers of Chemical Science and Engineering 2022, Volume 16, Issue 4,   Pages 461-474 doi: 10.1007/s11705-021-2072-8

Abstract: In this work, zinc-modified Ni-Ti catalysts (NixZnyTi1It was found that the introduction of zinc effectively increases the surface Ni density, enhances theNi particle size, more oxygen vacancies, higher dispersion and greater concentration of Ni on the catalystand Ti to Ni effectively adsorbs and dissociates hydrogen.The results reveal that NixZnyTi1 (Ni0.5Zn<

Keywords： bimetal strategy     oxygen vacancy     non-noble metal catalyst     hydrogenation     aromatic nitro compounds    

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The kinetic study of light alkene syntheses by CO 2 hydrogenation over Fe-Ni catalysts

Yaling ZHAO, Li WANG, Xiwei HAO, Jiazhou WU,

Frontiers of Chemical Science and Engineering 2010, Volume 4, Issue 2,   Pages 153-162 doi: 10.1007/s11705-009-0241-2

Abstract: A kinetics model of CO hydrogenation over iron-nickel catalysts was developed based on the detailed mechanism of alkenes re-adsorption and secondary reaction. The corresponding kinetical experiments are conducted in a continuous fixed bed reactor. The effect of reaction conditions on catalyst performance was analyzed according to the results of orthogonal experiments. The results of the experiments show that more methane in products can be obtained with iron-nickel catalysts, the trend of which is consistent with the thermodynamic analysis. However, the content of alkenes in products is equivalent with that of alkanes. This shows that the reaction is controlled by kinetics. In all, the results of the experiments also substantiate that the model can give a good representation of the reaction mechanism of CO hydrogenation over iron-nickel catalysts. The parameters of this model give a better explanation for the question why the iron-nickel catalysts have a higher selectivity toward alkenes compared with other iron-based catalysts.

Keywords： representation     corresponding     orthogonal     thermodynamic     consistent    

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Corrosion behavior of Fe–Cr–Ni based alloys exposed to molten MgCl2–KCl–NaCl salt with over-added

Frontiers of Chemical Science and Engineering 2023, Volume 17, Issue 10,   Pages 1608-1619 doi: 10.1007/s11705-023-2349-1

Abstract: of the most effective and cost-effective methods to mitigate the molten salt corrosion of commercial Fe–Cr–Nisteel 310 and Incoloy 800H samples were severely corroded after 500 h immersion test at 700 °C when the alloyMicroscopic analysis indicates that Ni preferentially leaches out of alloy matrix due to the tendencyto form MgNi2/Mg2Ni compounds.The Ni-depletion leads to the formation of a porous corrosion layer on both alloys, with the thickness

Keywords： concentrated solar power (CSP)     Mg corrosion inhibitor     Mg–Ni intermetallic     salt purification     thermal    

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The development of BG2250-125 Ni-based alloy tubing used in severe sour oil field

Shen Chen,Zhang Zhonghua,Zhang Chunxia

Strategic Study of CAE 2010, Volume 12, Issue 10,   Pages 35-38

Abstract:

The development of Ni-based alloy BG2250 tubing used in severe sour gas,the mechanical properties, corrosion resistance and pipe qualities of the Ni-based alloy tubing developedThe Ni-based alloy tubing BG2250-125 has been successfully applied to Puguang gas well, which provides

Keywords： Ni-based alloy     tubing     sour well     product properties    

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Fe - Ni - Co - Al2O3 Cermets Inert Anode for Aluminum Electrolysis

Qiu Zhuxian,Shi Zhongning,Xu Junli

Strategic Study of CAE 2004, Volume 6, Issue 8,   Pages 35-39

Abstract: The cell was built with a graphite cathode of 120 mm×40 mm×20 mm and a Fe - Ni - Co -AlFe, Ni and Co.

Keywords： aluminum electrolysis     inert anode     back EMF value    

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Research of the Preparation Technology for Zr66Al9Cu16Ni9Bulk Amorphous Alloy

Ruan Xuping,Ruan Hongwei

Strategic Study of CAE 2004, Volume 6, Issue 5,   Pages 76-78

Abstract: elements in the melt, therefore, it wasn´t favourable for coating the Zr66Al9Ni9Cu16 alloy, hence hindering the formation of the amorphous state.some elements in the melt, so they were not suitable for purifying the Zr66Al9Ni9Cu16 alloy.and processed materials were the important factors for to promoting the melt to form the amorphous alloy

Keywords： bulk amorphous alloy     preparation technology     glass     fused salt     vacuum degree    

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Hot deformation behavior of a novel bimetal consisting of BTW1 and Q345R characterized by processing

Pengtao LIU, Lifeng MA, Weitao JIA, Tao WANG, Guanghui ZHAO

Frontiers of Mechanical Engineering 2019, Volume 14, Issue 4,   Pages 489-495 doi: 10.1007/s11465-019-0554-x

Abstract: Only a few studies have been conducted on the flow behavior of the novel BTW1/Q345R bimetal, which isIn this work, compression tests were conducted on BTW1/Q345R bimetal at a temperature range of 950 °CThe computed apparent activation energy of the BTW1/Q345R bimetal was 360 kJ/mol, and processing mapsrevealed that work hardening exerted a dominant effect on the thermal deformation of the BTW1/Q345R bimetalResults showed that thermal deformation of the BTW1/Q345R bimetal should proceed when the temperature

Keywords： BTW1/Q345R bimetal     constitutive equation     processing map     work hardening    

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An Efficient Process for Recycling Nd–Fe–B Sludge as High-Performance Sintered Magnets Article

Xiaowen Yin, Ming Yue, Qingmei Lu, Min Liu, Feng Wang, Yubing Qiu, Weiqiang Liu, Tieyong Zuo, Shanshun Zha, Xuliang Li, Xiaofei Yi

Engineering 2020, Volume 6, Issue 2,   Pages 165-172 doi: 10.1016/j.eng.2019.11.007

Abstract: recycling technique for leftover sludge from the manufacturing process of neodymium-iron-boron (Nd–FeIn the present study, centerless grinding sludge from the Nd–Fe–B sintered magnet machininga reduction-diffusion (RD) process in order to synthesize recycled neodymium magnet (Nd2FeIt was found that single-phase Nd2Fe14B particles with good crystallinity wereThe recovered Nd2Fe14B particles were blended with 37.7 wt% Nd4Fe

Keywords： Nd–Fe–B grinding sludge Recycled sintered magnets     Calcium reduction-diffusion     Rare-earth-rich alloy    

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Effects of irradiation on chromium’s behavior in ferritic/martensitic FeCr alloy

Xinfu HE, Wen YANG, Zhehao QU, Sheng FAN

Frontiers in Energy 2009, Volume 3, Issue 2,   Pages 181-183 doi: 10.1007/s11708-009-0025-x

Abstract: The effects of irradiation on chromium performance under different temperatures in Fe-20at%Cr were modeledChromium precipitation was observed in FeCr alloy after irradiation; interstitial Chromium atoms arethe preferred formation of mixed Fe-Cr dumbbells in the direction of<110>and<111>; interstitial chromiumcompared with experiment observations and are useful to understanding the irradiation performances of FeCr alloy

Keywords： irradiation     Fe-20at%Cr alloy     chromium segregation    

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Title Author Date Type Operation

Bimetallic Ni-Fe catalysts derived from layered double hydroxides for CO methanation from syngas

Honggui Tang, Shuangshuang Li, Dandan Gong, Yi Guan, Yuan Liu

Journal Article

Bamboo-like -doped carbon nanotubes encapsulating M(Co, Fe)-Ni alloy for electrochemical production of

Journal Article

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

Journal Article

Topology optimization and seismic collapse assessment of shape memory alloy (SMA)-braced frames: Effectivenessof Fe-based SMAs

Aydin HASSANZADEH; Saber MORADI

Journal Article

Ultrafine Fe-modulated Ni nanoparticles embedded within nitrogen-doped carbon from Zr-MOFs-confined conversion

Journal Article

Carbon-coated Ni-Co alloy catalysts: preparation and performance for aqueous phase hydrodeoxygenation

Journal Article

Zinc modification of Ni-Ti as efficient NiZnTi catalysts with both geometric and electronic improvements

Journal Article

The kinetic study of light alkene syntheses by CO 2 hydrogenation over Fe-Ni catalysts

Yaling ZHAO, Li WANG, Xiwei HAO, Jiazhou WU,

Journal Article

Corrosion behavior of Fe–Cr–Ni based alloys exposed to molten MgCl2–KCl–NaCl salt with over-added

Journal Article

The development of BG2250-125 Ni-based alloy tubing used in severe sour oil field

Shen Chen,Zhang Zhonghua,Zhang Chunxia

Journal Article

Fe - Ni - Co - Al2O3 Cermets Inert Anode for Aluminum Electrolysis

Qiu Zhuxian,Shi Zhongning,Xu Junli

Journal Article

Research of the Preparation Technology for Zr66Al9Cu16Ni9Bulk Amorphous Alloy

Ruan Xuping,Ruan Hongwei

Journal Article

Hot deformation behavior of a novel bimetal consisting of BTW1 and Q345R characterized by processing

Pengtao LIU, Lifeng MA, Weitao JIA, Tao WANG, Guanghui ZHAO

Journal Article

An Efficient Process for Recycling Nd–Fe–B Sludge as High-Performance Sintered Magnets

Xiaowen Yin, Ming Yue, Qingmei Lu, Min Liu, Feng Wang, Yubing Qiu, Weiqiang Liu, Tieyong Zuo, Shanshun Zha, Xuliang Li, Xiaofei Yi

Journal Article

Effects of irradiation on chromium’s behavior in ferritic/martensitic FeCr alloy

Xinfu HE, Wen YANG, Zhehao QU, Sheng FAN

Journal Article