Bimetallic Fe‐Promoted Catalyst for CO‐Free Hydrogen Production in High‐Temperature‐Methanol Steam Reforming

Sharma, Richa; Kumar, Amit; Upadhyay, R. K.

doi:10.1002/cctc.201901062

Cited by 28 publications

(6 citation statements)

References 64 publications

(64 reference statements)

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“…DRIFTs analysis showed that the presence of Fe 2 O 3 as the surface species on the catalyst was responsible for the conversion of generated CO to CO 2 . 78,79…”

Section: Srmmentioning

confidence: 99%

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Steam Reforming of Methanol for Hydrogen Production: A Critical Analysis of Catalysis, Processes, and Scope

Ranjekar

Yadav

2021

Ind. Eng. Chem. Res.

163

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The hydrogen economy is being pursued quite vigorously since hydrogen is an important and green energy source with a variety of applications as fuel for transportation, fuel cell, feedstock, energy vector, reforming in refineries, carbon dioxide valorization, biomass conversion, etc. Steam reforming of alcohols is a well-established technique to obtain syngas. Methanol is viewed to be a lucrative alternative for fossil fuels, due to its flexibility in being generated from multiple sources, high energy density, and low operating temperatures. The catalysts used for reforming govern the methanol conversion rate and the ratio of gaseous products, i.e., H2, CO, and CO2. Group VIII–XII metals have been widely utilized for methanol steam reforming as they have a higher hydrogen yield. Several other catalysts and novel techniques have been developed and used to date. Quite a few strategies to enhance the performance of catalysts and reduce deactivation have been discussed. This review focuses on the metallic catalysts, mainly Cu, Pd, Zn, with different formulations and compositions for steam reforming of methanol (SRM). Active catalyst components, supports, and their interactions, along with different promoters, are reviewed, and their performances are critically analyzed. The various reaction mechanisms and reaction pathways have been identified and elaborated. A fundamental understanding of the functionality and structure of catalysts is required no matter which alcohol is used as a feedstock, and some general inferences can be obtained from polyhydroxyl feed for the steam reforming of methanol, which is the subject matter of this review. Particularly, the role of copper as a component in mono and multimetallic systems and the nature of support must be studied fundamentally to get high hydrogen yields. It is important to determine how metal support interactions, including oxygen transfer from reducible oxides to the metal site, influence the catalyst activity, selectivity, and stability. Further, the mechanism by which alloying affects the selectivity in multimetallic catalysts must be understood by using high-end characterizations.

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“…DRIFTs analysis showed that the presence of Fe 2 O 3 as the surface species on the catalyst was responsible for the conversion of generated CO to CO 2 . 78,79…”

Section: Srmmentioning

confidence: 99%

“…When copper content is higher than 75%, the selectivity for CO becomes almost zero. DRIFTs analysis showed that the presence of Fe 2 O 3 as the surface species on the catalyst was responsible for the conversion of generated CO to CO 2 . , …”

Section: Introductionmentioning

confidence: 98%

Steam Reforming of Methanol for Hydrogen Production: A Critical Analysis of Catalysis, Processes, and Scope

Ranjekar

Yadav

2021

Ind. Eng. Chem. Res.

163

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“…Hence, the addition of lanthanum improves metallic dispersion and has positive effects on active phase support interaction, sintering resistance, and carbon deposition [37] . Similarly, Fe improves the WGS reaction performance and hence helps in reducing the CO selectivity [38] . Therefore, in the current work, a novel La and Fe promoted Ni based catalyst is synthesized for steam reforming of methane targeting membrane reformer application.…”

Section: Introductionmentioning

confidence: 99%

“…[37] Similarly, Fe improves the WGS reaction performance and hence helps in reducing the CO selectivity. [38] Therefore, in the current work, a novel La and Fe promoted Ni based catalyst is synthesized for steam reforming of methane targeting membrane reformer application. The study uses commercial alumina and ceria as support.…”

Section: Introductionmentioning

confidence: 99%

Effect of Lanthanum and Iron Doping on Nickel‐Based Alumina and Ceria Supported Catalysts for Steam Reforming of Methane

Baudh,

Sharma,

Sharma

et al. 2024

ChemistrySelect

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Membrane reformers emerge as an efficient technology for ‘on‐site’ ultra‐pure hydrogen production. The membrane reformer can be integrated with PEM fuel cell (PEMFC) to provide power. However, as the PEMFC works at lower temperature hence, such integration requires a low temperature catalyst. Further, for successful integration of membrane reformer with PEMFC, a low CO selective catalyst is vital. In current work, Ni‐based alumina and ceria supported catalysts are used. The effect of La and Fe promoters on the performance of Ni‐based alumina and ceria supported catalysts are investigated. The catalysts are synthesized using wet impregnation method. A complete characterization of catalysts is performed using BET, XRD, FESEM, and EDX. Fe promoted catalysts shows low CO and high CO2 selectivity which is desirable for membrane reformer. However, the catalytic activity of Fe promoted Ni‐based alumina and ceria supported catalysts were low. La promoted Ni‐based catalysts show high catalytic activity on both alumina and ceria supported catalysts. La promoted catalysts also gives low start up time, high catalytic activity and low CO selectivity at low temperature. Ni−La/Al2O3 catalyst provides 50 % conversion and 12 % CO selectivity at 500 °C. This makes it suitable for ‘on‐site’ generation of ultra‐pure hydrogen through membrane reformer.

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“…PEMFCs have little tolerance for CO; even if the operating temperature of PEMFCs is increased, the tolerance of Heat Temperature‐PEMFCs (HT‐PEMFCs) to CO is only 3.0% 9 . Some studies suggest that CO is a potent poison, and it will have a destructive impact on the performance of catalysts over time 10 . Therefore, it is necessary to inhibit the production of CO in MSR reactions.…”

Section: Introductionmentioning

confidence: 99%

Highly stable CuFe_1.2Al_.8O₄ catalyst with low CO selectivity for hydrogen production in HT‐PEMFCs application

Shen,

Chen,

Ren

et al. 2024

Int J Applied Ceramic Tech

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Methanol steam reforming (MSR) is considered as an effective way to provide on‐board hydrogen production technology for fuel cell applications. CuFe1.2Al.8O4 spinel catalyst was synthesized by sol–gel method and the chemical and physical properties were studied in‐depth. X‐ray diffraction, hydrogen‐temperature programmed reduction (H2‐TPR), BET, and scanning electron microscopy were used to characterize the catalysts with reaction times of 20, 50, and 100 h. The results of H2‐TPR showed that 90% of spinel Cu2+ was released after 100 h reaction. BET results show that the specific surface area and pore characteristics of the catalyst have not changed greatly after reaction for 20, 50, and 100 h. Furthermore, in the unsteady‐state test, CuFe1.2Al.8O4 exhibited excellent catalytic activity and thermal stability under long‐term repeated start‐up and stop cycles. At 275°C, the methanol conversion rate remained around 94% and the CO selectivity remained below 1%. Therefore, the catalyst synthesized in this study has excellent stability and low CO selectivity, making it a highly promising on‐board hydrogen production catalyst in the field of HT‐proton exchange membrane fuel cells (PEMFCs).

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Bimetallic Fe‐Promoted Catalyst for CO‐Free Hydrogen Production in High‐Temperature‐Methanol Steam Reforming

Cited by 28 publications

References 64 publications

Steam Reforming of Methanol for Hydrogen Production: A Critical Analysis of Catalysis, Processes, and Scope

Steam Reforming of Methanol for Hydrogen Production: A Critical Analysis of Catalysis, Processes, and Scope

Effect of Lanthanum and Iron Doping on Nickel‐Based Alumina and Ceria Supported Catalysts for Steam Reforming of Methane

Highly stable CuFe_1.2Al_.8O₄ catalyst with low CO selectivity for hydrogen production in HT‐PEMFCs application

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Bimetallic Fe‐Promoted Catalyst for CO‐Free Hydrogen Production in High‐Temperature‐Methanol Steam Reforming

Cited by 28 publications

References 64 publications

Steam Reforming of Methanol for Hydrogen Production: A Critical Analysis of Catalysis, Processes, and Scope

Steam Reforming of Methanol for Hydrogen Production: A Critical Analysis of Catalysis, Processes, and Scope

Effect of Lanthanum and Iron Doping on Nickel‐Based Alumina and Ceria Supported Catalysts for Steam Reforming of Methane

Highly stable CuFe1.2Al.8O4 catalyst with low CO selectivity for hydrogen production in HT‐PEMFCs application

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Highly stable CuFe_1.2Al_.8O₄ catalyst with low CO selectivity for hydrogen production in HT‐PEMFCs application