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An investigation of the CHOH and CO selectivity of CO hydrogenation over Cu–Ce–Zr catalysts

Frontiers of Chemical Science and Engineering 2022, Volume 16, Issue 6,   Pages 950-962 doi: 10.1007/s11705-022-2162-2

Abstract: A series of Cu–Ce–Zr catalysts with different Ce contents are applied to the hydrogenation of CO<sub>2sub> to CO/CH<sub>3sub>OH products.At the CO<sub>2sub> hydrogenation step, a larger number of hydroxyl groups assists in encouraging thefurther hydrogenation of intermediate species to CH<sub>3sub>OH and improving the hydrogenation rate>2sub> hydrogenation to CH<sub>3sub>OH.

Keywords： CO<sub>2sub> hydrogenation     Cu–Ce–Zr     hydroxyls     CO/CH<sub>3sub>OH selectivity    

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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: Notably, the optimized 10Fe-8Cu/TiO<sub>2sub> catalyst exhibited exceptional catalytic performancein converting NO to NH<sub>3sub>, achieving an NO conversion rate exceeding 80% and an NH<sub>3subOur findings unequivocally demonstrate that Cu doping enhances the rate-limiting hydrogenation step andlowers the energy barrier for NH<sub>3sub> desorption, thereby resulting in improved NO conversion

Keywords： NO hydrogenation     synthetic ammonia     10Fe-xCu/TiO<sub>2sub>     high selectivity    

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Selective hydrogenation of acetylene over Pd/CeO

Kai Li, Tengteng Lyu, Junyi He, Ben W. L. Jang

Frontiers of Chemical Science and Engineering 2020, Volume 14, Issue 6,   Pages 929-936 doi: 10.1007/s11705-019-1912-2

Abstract: Five hundred ppm Pd/CeO catalyst was prepared and evaluated in selective hydrogenation of acetylene

Keywords： selective hydrogenation     acetylene     Pd/CeO<sub>2sub>     strong interaction    

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Methanation of carbon dioxide: an overview

Wei WANG, Jinlong GONG

Frontiers of Chemical Science and Engineering 2011, Volume 5, Issue 1,   Pages 2-10 doi: 10.1007/s11705-010-0528-3

Abstract: Although being very challenging, utilization of carbon dioxide (CO ) originating from production processes and flue gases of CO -intensive sectors has a great environmental and industrial potential due to improving the resource efficiency of industry as well as by contributing to the reduction of CO emissions. As a renewable and environmentally friendly source of carbon, catalytic approaches for CO fixation in the synthesis of chemicals offer the way to mitigate the increasing CO buildup. Among the catalytic reactions, methanation of CO is a particularly promising technique for producing energy carrier or chemical. This article focuses on recent developments in catalytic materials, novel reactors, and reaction mechanism for methanation of CO .

Keywords： CO<sub>2sub> methanation     hydrogenation     catalysis     methane     environmental science    

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Development of an H reduction and moderate oxidation method for 3,5-dimethylpyridine hydrogenation in

Frontiers of Chemical Science and Engineering 2022, Volume 16, Issue 12,   Pages 1807-1817 doi: 10.1007/s11705-022-2243-2

Abstract: The Ru/C catalyst prepared by impregnation method was used for hydrogenation of 3,5-dimethylpyridine>2sub>-TPR, hydrogen temperature-programmed dispersion (H<sub>2sub>-TPD), X-ray diffraction, energyand oxygen temperature-programmed dispersion (O<sub>2sub>-TPD) analyses.>2sub> reduction and moderate oxidation (oxidized at 100 °C).of the in-situ H<sub>2sub> reduction and moderate oxidized Ru/C-i2 catalyst, the interaction

Keywords： Ru/C catalyst     in-situ H<sub>2sub> reduction and moderate oxidation     in-situ reduction     non-in-situ reduction     hydrogenation of 3     5-dimethylpyridine    

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Investigation of the preparation methodologies of Pd-Cu single atom alloy catalysts for selective hydrogenation

Xinxiang Cao,Arash Mirjalili,James Wheeler,Wentao Xie,Ben W.-L. Jang

Frontiers of Chemical Science and Engineering 2015, Volume 9, Issue 4,   Pages 442-449 doi: 10.1007/s11705-015-1547-x

Abstract: employed to prepare Pd-Cu bimetallic catalysts with less than 1 wt-% Cu and ca. 0.03 wt-% Pd for selective hydrogenation

Keywords： H<sub>2sub> pulse chemisorption     palladium-copper bimetallic catalyst     single atom alloy     acetylene hydrogenation    

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Effect of thermal pretreatment on the surface structure of PtSn/SiO

Guozhen Xu, Jian Zhang, Shengping Wang, Yujun Zhao, Xinbin Ma

Frontiers of Chemical Science and Engineering 2016, Volume 10, Issue 3,   Pages 417-424 doi: 10.1007/s11705-016-1583-1

Abstract: pretreatment on the active sites and catalytic performances of PtSn/SiO catalyst in acetic acid (AcOH) hydrogenationvariation trend with that of Lewis acid sites, confirming the important roles of Lewis acid sites in AcOH hydrogenationexposed Pt and Lewis acid sites was obtained, resulting in the superior catalytic performance in AcOH hydrogenation

Keywords： thermal pretreatment     acetic acid     hydrogenation     ethanol     PtSn/SiO<sub>2sub>    

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A comparison of the catalytic hydrogenation of 2-amylanthraquinone and 2-ethylanthraquinone over a Pd

Enxian Yuan, Xiangwei Ren, Li Wang, Wentao Zhao

Frontiers of Chemical Science and Engineering 2017, Volume 11, Issue 2,   Pages 177-184 doi: 10.1007/s11705-016-1604-0

Abstract: The hydrogenation of 2-ethylanthraquinone (eAQ), 2- -amylanthraquinone (taAQ) and their mixtures withmolar ratios of 1:1 and 1:2 to the corresponding hydroquinones (eAQH and taAQH ) were studied overCompared to eAQ, TaAQ exhibited a significantly slower hydrogenation rate (about half) but had a higherThe hydrogenation of the eAQ/taAQ mixtures had the slowest rates, lowest H O yields and the highest amounts

Keywords： hydrogenation     hydrogen peroxide     anthraquinone     Pd catalyst     AO process    

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Boehmite-supported CuO as a catalyst for catalytic transfer hydrogenation of 5-hydroxymethylfurfuralto 2,5-bis(hydroxymethyl)furan

Frontiers of Chemical Science and Engineering 2023, Volume 17, Issue 4,   Pages 415-424 doi: 10.1007/s11705-022-2225-4

Abstract: 2,5-bis(hydroxymethyl)furan (BHMF) is an important monomer of polyester.Herein, we prepared a boehmite-supported copper-oxide catalyst for the selective hydrogenation of 5-hydroxymethylfurfuralinto BHMF via catalytic transfer hydrogenation (CTH).These results will have a positive impact on hydrogenation processes in the biomass industry.

Keywords： biomass     5-hydroxymethylfurfural     2     5-bis(hydroxymethyl)furan     transfer hydrogenation     catalysis    

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Potassium and Manganese Promoters on Nitrogen-Doped Carbon Nanotube-Supported Iron Catalysts for CO<sub>2sub> Hydrogenation Article

Praewpilin Kangvansura, Ly May Chew, Chanapa Kongmark, Phatchada Santawaja, Holger Ruland, Wei Xia, Hans Schulz, Attera Worayingyong, Martin Muhler

Engineering 2017, Volume 3, Issue 3,   Pages 385-392 doi: 10.1016/J.ENG.2017.03.013

Abstract: nanotubes (NCNTs) were used as a support for iron (Fe) nanoparticles applied in carbon dioxide (CO<sub>2sub>) hydrogenation at 633 K and 25 bar (1 bar = 105 Pa).>2sub> hydrogenation, reaching 34.9% conversion with a gas hourly space velocity (GHSV) of 3.1 L·>2sub>), and in situ X-ray absorption near-edge structure (XANES) analysis.Catalytic ammonia (NH<sub>3sub>) decomposition was used as an additional probe reaction for characterizing

Keywords： CO<sub>2sub> hydrogenation     Iron catalyst     Nitrogen-doped carbon nanotubes     Manganese promoter     Potassium    

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Microemulsion-mediated hydrothermal synthesis of flower-like MoS

Yuxia Jiang, Donge Wang, Zhendong Pan, Huaijun Ma, Min Li, Jiahe Li, Anda Zheng, Guang Lv, Zhijian Tian

Frontiers of Chemical Science and Engineering 2018, Volume 12, Issue 1,   Pages 32-42 doi: 10.1007/s11705-017-1677-4

Abstract: Their catalytic performance for anthracene hydrogenation was evaluated using a slurry-bed batch reactorMoS nanosheets on MoS -S and MoS -A possess stacking layer numbers of 5–10 and 2–5, and slab lengthsThe MoS nanoflowers have high catalytic activities for anthracene hydrogenation.The enhanced hydrogenation activities of MoS nanoflowers can be ascribed to the high exposure of catalytic

Keywords： microemulsion     intercalated MoS<sub>2sub>     catalytic hydrogenation     active sites    

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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 mechanismexperiments also substantiate that the model can give a good representation of the reaction mechanism of CO hydrogenation

Keywords： representation     corresponding     orthogonal     thermodynamic     consistent    

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Rh<sub>2sub>O<sub>3sub>/hexagonal CePO<sub>4sub> nanocatalysts for N<sub>2sub>O decomposition

Huan Liu, Zhen Ma

Frontiers of Chemical Science and Engineering 2017, Volume 11, Issue 4,   Pages 586-593 doi: 10.1007/s11705-017-1659-6

Abstract: Hexagonal CePO nanorods were prepared by a precipitation method and hexagonal CePO nanowires were prepared by hydrothermal synthesis at 150 °C. Rh(NO ) was then used as a precursor for the impregnation of Rh O onto these CePO materials. The Rh O supported on the CePO nanowires was much more active for the catalytic decomposition of N O than the Rh O supported on CePO nanorods. The stability of both catalysts as a function of time on stream was studied and the influence of the co-feed (CO , O , H O or O /H O) on the N O decomposition was also investigated. The samples were characterized by N adsorption-desorption, inductively coupled plasma optical emission spectroscopy, X-ray diffraction, transmission electron microscopy, X-ray photoelectron microscopy, hydrogen temperature-programmed reduction, oxygen temperature-programmed desorption, and CO temperature-programmed desorption in order to correlate the physicochemical and catalytic properties.

Keywords： Rh<sub>2sub>O<sub>3sub>     CePO<sub>4sub>     N<sub>2sub>O decomposition    

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CO<sub>2sub> methanation and co-methanation of CO and CO<sub>2sub> over Mn-promoted Ni/Al<sub>2sub>O<sub>3sub> catalysts

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 impregnation method. The effect of the Mn content on the activity of the Ni/Al O catalysts for CO methanation and the co-methanation of CO and CO in a fixed-bed reactor was investigated. The catalysts were characterized by N physisorption, hydrogen temperature-programmed reduction and desorption, carbon dioxide temperature-programmed desorption, X-ray diffraction and high-resolution transmission electron microscopy. The presence of Mn increased the number of CO adsorption sites and inhibited Ni particle agglomeration due to improved Ni dispersion and weakened interactions between the nickel species and the support. The Mn-promoted 15 wt-% Ni/Al O catalysts had improved CO methanation activity especially at low temperatures (250 to 400 °C). The Mn content was varied from 0.86% to 2.54% and the best CO conversion was achieved with the 1.71Mn-Ni/Al O catalyst. The co-methanation tests on the 1.71Mn-Ni/Al O catalyst indicated that adding Mn markedly enhanced the CO methanation activity especially at low temperatures but it had little influence on the CO methanation performance. CO methanation was more sensitive to the reaction temperature and the space velocity than the CO methanation in the co-methanation process.

Keywords： Mn promotion     nickel catalysts     CO<sub>2sub> methanation     co-methanation of CO and CO<sub>2sub>    

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A Storage-Driven CO<sub>2sub> EOR for a Net-Zero Emission Target Article

Yueliang Liu, Zhenhua Rui

Engineering 2022, Volume 18, Issue 11,   Pages 79-87 doi: 10.1016/j.eng.2022.02.010

Abstract: >2sub>) emissions.>2sub> emissions by storing CO<sub>2sub> in oil reservoirs.CO<sub>2sub> EOR—whose main target is to realize net-zero or even negative CO<sub>2sub> emissionsStorage-driven CO<sub>2sub> EOR is superior to conventional CO<sub>2sub> EOR in improving sweepingthan conventional CO<sub>2sub> EOR.

Keywords： CO<sub>2sub>     EOR     Net CO<sub>2sub>     emissions     Dimethyl ether     Storage-driven CO<sub>2sub>     EOR     CO<sub>2sub>     sequestration    

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Title Author Date Type Operation

An investigation of the CHOH and CO selectivity of CO hydrogenation over Cu–Ce–Zr catalysts

Journal Article

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

Journal Article

Selective hydrogenation of acetylene over Pd/CeO

Kai Li, Tengteng Lyu, Junyi He, Ben W. L. Jang

Journal Article

Methanation of carbon dioxide: an overview

Wei WANG, Jinlong GONG

Journal Article

Development of an H reduction and moderate oxidation method for 3,5-dimethylpyridine hydrogenation in

Journal Article

Investigation of the preparation methodologies of Pd-Cu single atom alloy catalysts for selective hydrogenation

Xinxiang Cao,Arash Mirjalili,James Wheeler,Wentao Xie,Ben W.-L. Jang

Journal Article

Effect of thermal pretreatment on the surface structure of PtSn/SiO

Guozhen Xu, Jian Zhang, Shengping Wang, Yujun Zhao, Xinbin Ma

Journal Article

A comparison of the catalytic hydrogenation of 2-amylanthraquinone and 2-ethylanthraquinone over a Pd

Enxian Yuan, Xiangwei Ren, Li Wang, Wentao Zhao

Journal Article

Boehmite-supported CuO as a catalyst for catalytic transfer hydrogenation of 5-hydroxymethylfurfuralto 2,5-bis(hydroxymethyl)furan

Journal Article

Potassium and Manganese Promoters on Nitrogen-Doped Carbon Nanotube-Supported Iron Catalysts for CO<sub>2sub> Hydrogenation

Praewpilin Kangvansura, Ly May Chew, Chanapa Kongmark, Phatchada Santawaja, Holger Ruland, Wei Xia, Hans Schulz, Attera Worayingyong, Martin Muhler

Journal Article

Microemulsion-mediated hydrothermal synthesis of flower-like MoS

Yuxia Jiang, Donge Wang, Zhendong Pan, Huaijun Ma, Min Li, Jiahe Li, Anda Zheng, Guang Lv, Zhijian Tian

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

Rh<sub>2sub>O<sub>3sub>/hexagonal CePO<sub>4sub> nanocatalysts for N<sub>2sub>O decomposition

Huan Liu, Zhen Ma

Journal Article

CO<sub>2sub> methanation and co-methanation of CO and CO<sub>2sub> over Mn-promoted Ni/Al<sub>2sub>O<sub>3sub> catalysts

Kechao Zhao,Zhenhua Li,Li Bian

Journal Article

A Storage-Driven CO<sub>2sub> EOR for a Net-Zero Emission Target

Yueliang Liu, Zhenhua Rui

Journal Article