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Stability of Ni/SiO

Bettina Stolze,Juliane Titus,Stephan A. Schunk,Andrian Milanov,Ekkehard Schwab,Roger Gläser

Frontiers of Chemical Science and Engineering 2016, Volume 10, Issue 2, Pages 281-293 doi: 10.1007/s11705-016-1568-0

Abstract: Ni/SiO -ZrO catalysts with Ni loadings of 1 to 13 wt-% were prepared, characterized by elemental analysisThe catalyst with 5 wt-% Ni loading in its fully reduced state is stable over 15?The Ni loading of 5 wt-% on SiO -ZrO was shown to provide an optimal balance between activity and coking

Keywords： Ni/SiO₂-ZrO₂ synthesis gas dry reforming coking steaming

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Catalytic hydrolysis of gaseous HCN over Cu–Ni/γ-Al

Linxia Yan, Senlin Tian, Jian Zhou, Xin Yuan

Frontiers of Environmental Science & Engineering 2016, Volume 10, Issue 6, doi: 10.1007/s11783-016-0872-8

Abstract: The Cu–Ni/γ-Al O catalyst was prepared to study HCN hydrolysis ?decompose efficiently hydrogen cyanide (HCN) in exhaust gas, g-Al O -supported bimetallic-based Cu–Nivolume ratio, reaction temperature, and the presence of CO or O on the HCN removal efficiency on the Cu–Ni

Keywords： Hydrogen cyanide Cu–Ni/g-Al₂O₃ Catalytic hydrolysis

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Effects of MgO promoter on properties of Ni/Al2O3 catalysts for partial oxidation of methane to syngas

QIU Yejun, CHEN Jixiang, ZHANG Jiyan

Frontiers of Chemical Science and Engineering 2007, Volume 1, Issue 2, Pages 167-171 doi: 10.1007/s11705-007-0031-7

Abstract: The effects of MgO promoter on the physico-chemical properties and catalytic performance of Ni/AlO catalyststhe reversed water gas shift reaction, which led to an increase in CO selectivity and a decrease in H2The suitable content of MgO promoter in Ni/AlO catalyst was ?7 wt-%.

Keywords： excessive selectivity decrease dispersiveness physico-chemical

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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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CO₂ methanation and co-methanation of CO and CO₂ over Mn-promoted Ni/Al₂

Kechao Zhao,Zhenhua Li,Li Bian

Frontiers of Chemical Science and Engineering 2016, Volume 10, Issue 2, Pages 273-280 doi: 10.1007/s11705-016-1563-5

Abstract: A series of Mn-promoted 15 wt-% Ni/Al O catalysts were prepared by an incipient wetness impregnationThe presence of Mn increased the number of CO adsorption sites and inhibited Ni particle agglomerationdue to improved Ni dispersion and weakened interactions between the nickel species and the support.Mn content was varied from 0.86% to 2.54% and the best CO conversion was achieved with the 1.71Mn-NiThe co-methanation tests on the 1.71Mn-Ni/Al O catalyst indicated that adding Mn markedly enhanced the

Keywords： Mn promotion nickel catalysts CO₂ methanation co-methanation of CO and CO₂

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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: MgCl₂–NaCl–KCl salts mixture shows great potential as a high-temperature (> 700 °C) thermalAdding Mg into molten MgCl₂–NaCl–KCl salt as a corrosion inhibitor is one of the most effectiveand cost-effective methods to mitigate the molten salt corrosion of commercial Fe–Cr–Ni alloys.Microscopic analysis indicates that Ni preferentially leaches out of alloy matrix due to the tendencyto form MgNi₂/Mg₂Ni compounds.

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

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and bacteriophage MS2 disinfection by UV, ozone and the combined UV and ozone processes

Jingyun FANG,Huiling LIU,Chii SHANG,Minzhen ZENG,Mengling NI,Wei LIU

Frontiers of Environmental Science & Engineering 2014, Volume 8, Issue 4, Pages 547-552 doi: 10.1007/s11783-013-0620-2

Abstract: In this study, inactivation of and bacteriophage MS2 by UV, ozone, UV/ozone coexposure, and sequentialThe synergistic effect on MS2 inactivation was less significant after the UV/ozone coexposure, and more

Keywords： bacteria inactivation photoreactivation water disinfection UV ozone

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Synergistic utilization of coal and other energy – Key to low carbon economy

Weidou NI, Zhen CHEN

Frontiers in Energy 2011, Volume 5, Issue 1, Pages 1-19 doi: 10.1007/s11708-010-0136-4

Abstract: In China, coal is a dominant component of energy mix, and it is expected to remain as such over the next 30 to 40 years. Coal is expected to be used even more in power generation. The direct combustion of coal already has been causing severe pollution and ecological degradation, and it is quite difficult to address the need to reduce greenhouse gas (GHG) given the direct combustion of coal. Therefore, the polygeneration system based on coal gasification, which is one of the major examples of synergistic utilization of coal, is proposed. It is a comprehensive solution to meet the energy challenges China is facing. Furthermore, the synergy of fossil fuels (especially coal) with renewable energy, the synergy of different kinds of energy for energy storage, the synergy of centralized and distributed supply of different kinds of energy, and the synergy of different kinds of energy in smart energy grid (power, gas, heat, and water) are the keys to making China a low-carbon economy. Carbon dioxide (CO ) mitigation in China should begin from the coal-chemical industry given their accumulated relevant experiences. The mitigation process should gradually be transformed into the “IGCC+ polygeneration+ CCUS”. The objectives of this paper are to describe the synergistic utilization of coal, and to analyze the synergy of coal with other energy resources, and to propose the scientific and technological problems to achieve these synergies.

Keywords： synergy clean and efficient utilization of coal coal-based polygenration CO₂ mitigation energy

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Preparation of Ni/SiO catalyst in ionic liquids for hydrogenation

FAN Qingming, LIU Yingxin, ZHENG Yifan, YAN Wei

Frontiers of Chemical Science and Engineering 2008, Volume 2, Issue 1, Pages 63-68 doi: 10.1007/s11705-008-0013-4

Abstract: The results show that the Ni/SiO catalyst prepared with 1-(2-hydroxyethyl)-3-methyl-imidazole tetrafluoroborateoptimal conditions of catalyst dosage (based on the mass of cinnamaldehyde used) 10%, reaction pressure 2MPa, temperature 373 K and reaction time 2 h, the conversion of cinnamaldehyde and the selectivity to

Keywords： dispersive conversion catalytic 2-hydroxyethyl catalytic activity

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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: A co-precipitation method was employed to prepare Ni/Al O -ZrO , Co/Al O -ZrO and Ni-Co/Al O -ZrO catalystsNi-Co/Al O -ZrO bimetallic catalyst has good performance in the reduction of active components Ni, Comono-metallic catalyst, bimetallic catalyst could provide more active sites and CO adsorption sites (C+ CO = 2COAccording to the CH -CO -TPSR, there were 80.9% and 81.5% higher CH and CO conversion over Ni-Co/AlThe 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

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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: The electrochemical conversion of CO₂-H₂O into CO-H₂ using renewableseries of N-doped carbon nanotubes encapsulating binary alloy nanoparticles (M_xNi-NCNTThe M_xNi-NCNT samples exhibited bamboo-like nanotubular structures with a large specificon M_xNi-NCNT.biofuels by syngas fermentation, could be realized on Co₁Ni-NCNT and Co₂Ni-NCNT

Keywords： electrochemical reduction of CO₂ syngas N-doped carbon nanotubes encapsulated alloynanoparticles CO/H₂ ratio

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Roles of various Ni species on TiO

Xiaoping CHEN, Jihai XIONG, Jinming SHI, Song XIA, Shuanglin GUI, Wenfeng SHANGGUAN

Frontiers in Energy 2019, Volume 13, Issue 4, Pages 684-690 doi: 10.1007/s11708-018-0585-8

Abstract: In this study, different nickel species Ni, Ni(OH) , NiO, NiO , and NiS are used to modified titanium

Keywords： nickel species TiO₂ photocatalytic hydrogen evolution

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Efficient degradation of orange II by ZnMn

Qingzhuo Ni, Hao Cheng, Jianfeng Ma, Yong Kong, Sridhar Komarneni

Frontiers of Chemical Science and Engineering 2020, Volume 14, Issue 6, Pages 956-966 doi: 10.1007/s11705-019-1907-z

Abstract: A ZnMn O catalyst has been synthesized via a sucrose-aided combustion method and characterized by various analytical techniques. It is composed of numerous nanoparticles (15–110 nm) assembled into a porous structure with a specific surface area (SSA) of 19.1 m ·g . Its catalytic activity has been investigated for the degradation of orange II dye using three different systems, i.e., the photocatalysis system with visible light, the chemocatalysis system with bisulfite, and the photo-chemical catalysis system with both visible light and bisulfite. The last system exhibits the maximum degradation efficiency of 90%, much higher than the photocatalysis system (15%) and the chemocatalysis system (67%). The recycling experiments indicate that the ZnMn O catalyst has high stability and reusability and is thus a green and eximious catalyst. Furthermore, the potential degradation mechanisms applicable to the three systems are discussed with relevant theoretical analysis and scavenging experiments for radicals. The active species such as Mn(III), O , h , e , SO and HO are proposed to be responsible for the excellent degradation results in the photo-chemical catalysis system with the ZnMn O catalyst.

Keywords： ZnMn₂O₄ photo-chemical catalysis bisulfite dye degradation

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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 -Al₂O₃ cermet inert anode of 120 mm×80 mm×15 mm.The purity of aluminum metal produced was 98%〜99%, the impurities were mainly Fe, Ni and Co.The anode gas consisted of 98%〜99% O₂ which was analyzed with an Orsat apparatus.that the electrochemical reaction occurred in the electrolysis cell was the decomposition of Al_2<

Keywords： aluminum electrolysis inert anode back EMF value

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Study on the performance of EDI device in dealing with Ni₂solution with dilute departments

Niu Yubiao,Xu Xiaoqing,Zhao Haiyang,Zhou Zhijun

Strategic Study of CAE 2014, Volume 16, Issue 7, Pages 62-67

Abstract: whose dilute departments were filled with cation exchange resins and feed water was low concentration Ni₂solution, for the treatment of low-concentration heavy-metal wastewater.With the feed solution whose Ni²⁺ concentration was 50 mg·L^-1 and pH was 4.5, the results show that the out dilute Ni²⁺concentration was lower than 2mg·L^_-1 and the Ni²⁺ concentration of out concentrate could higher

Keywords： Electrodeionization (EDI) cation exchange resin heavy-metal Ni₂