Hydrogen production over highly active Pt based catalyst coatings by steam reforming of methanol: Effect of support and co-support

Shanmugam, Vetrivel; Neuberg, Stefan; Zapf, Ralf; Pennemann, Helmut; Kolb, Gunther

doi:10.1016/j.ijhydene.2019.11.015

Cited by 60 publications

(16 citation statements)

References 44 publications

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“…Pt/In 2 O 3 catalyst supported on CeO 2 exhibited prolonged stability with the least CO selectivity for steam reforming up to 100 h. Thus, the role of support remains to be an important factor in catalytic reactions (Figure 10). 256 Song et al recommended a novel idea for designing very efficient composite catalysts for SRM by manipulating the lattice/bridge oxygen and surface oxygen vacancy. They examined the repercussions of zinc oxide content on the performance of the Zn y Ce 1 Zr 9 O x catalyst.…”

Section: Cu-based Catalystsmentioning

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.

180

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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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Section: Cu-based Catalystsmentioning

confidence: 99%

“…A possible proposed mechanism for steam reforming of methanol using the Pt/In 2 O 3 /CeO 2 catalyst. Reprinted with permission . Copyright (2020) Elsevier.…”

Section: Group Viii–xii Catalystsmentioning

confidence: 99%

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

Ranjekar

Yadav

2021

Ind. Eng. Chem. Res.

180

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“…because of their desirable dissociation power for hydrogen. [1][2] Nevertheless, more reactions such as selective synthesis of secondary amines as important compounds in chemical and pharmaceutical intermediate are also challenging, which could be achieved by the reductive amination of aldehydes with ammonia and hydrogen. Generally, hydrogen and ammonia obviously participate in adsorbing on the same metal active sites during reductive amination reaction, thereby selecting an appropriate metal catalyst is of great importance.…”

Section: Introductionmentioning

confidence: 99%

Platinum Nanoparticles Uniformly Dispersed on Covalent Organic Framework Supports for Selective Synthesis of Secondary Amines

et al. 2022

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Covalent organic frameworks (COFs) with pore structures are talented supports for active components. In this report, COF has been rationally fabricated and served as host for growing uniformly dispersed platinum nanoparticles with a narrow size distribution (2 nm). The obtained hybrid Pt/COF exhibits high catalytic activity in the reductive amination of benzaldehyde towards secondary amines with a yield of 96 % and good recyclability. The preferable selectivity towards secondary amines could be attributed to synergistic effects of active platinum nanoparticles and COF, in which metallic Pt nanoparticles were uniformly dispersed with a positively charged surface. This work will open an avenue towards controlling the interaction between active metals and support as well as rational design of catalysts for demanding transformations for fine agrochemicals intermediates.

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“…Synthesis gas (syngas) is a fuel gas mixture including carbon monoxide and hydrogen. 1 There are various sources for producing syngas, such as natural gas, coal, biomass or any hydrocarbon feedstock, by reaction with steam (steam reforming), carbon dioxide (dry reforming) or oxygen (partial oxidation). 2 Syngas can be applied to produce the fuel using the Fischer-Tropsch synthesis process.…”

Section: Introductionmentioning

confidence: 99%

Combined steam and dry reforming of methanol over Fe‐Mn‐Cu / ZrO ₂ catalyst to syngas formation: Study about kinetic and fuzzy model approaches

Mosayebi

Ahmadi

2021

Int J Energy Res

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Combined steam and dry reforming of methanol (CSDRM) experiments were applied to measure the responses of CH 3 OH conversion, H 2 /CO ratio, H 2 and CO yield at a temperature range of 300 C to 900 C, CO 2 /H 2 O ratio of 0.5 to 2.5 and (CO 2 + H 2 O)/CH 3 OH ratio of 1 to 3 on Fe-Mn-Cu/ZrO 2 catalyst in a fixed bed reactor. Fe-Mn-Cu/ZrO 2 catalyst was synthesized via the co-precipitation approach, and its physicochemical properties were examined through X-ray diffractometer, X-ray fluorescence, temperature-programmed reduction, N 2 adsorption/desorption and thermal gravimetric analysis tests. A kinetic model for CSDRM reaction was derived via the Langmuir-Freundlich method and the proposed mechanism included three reversible reactions on three types of active sites. A Mamdani-type fuzzy model was also developed for comparison purposes, as there was no need for detailed knowledge of the process. The error of the kinetic and Mamdani-type fuzzy model approaches obtained 12.69% and 16.42%, respectively. H 2 yield obtained from kinetic model values was closer to the experimental data compared to other responses. However, for the fuzzy model approach, the difference between experimental and calculated methanol conversion was lower. K E Y W O R D S combined steam and dry reforming of methanol, Fe-Mn-Cu/ZrO 2 catalyst, kinetic model, Langmuir-Freundlich, Mamdani-type fuzzy model

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Hydrogen production over highly active Pt based catalyst coatings by steam reforming of methanol: Effect of support and co-support

Cited by 60 publications

References 44 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

Platinum Nanoparticles Uniformly Dispersed on Covalent Organic Framework Supports for Selective Synthesis of Secondary Amines

Combined steam and dry reforming of methanol over Fe‐Mn‐Cu / ZrO ₂ catalyst to syngas formation: Study about kinetic and fuzzy model approaches

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Hydrogen production over highly active Pt based catalyst coatings by steam reforming of methanol: Effect of support and co-support

Cited by 60 publications

References 44 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

Platinum Nanoparticles Uniformly Dispersed on Covalent Organic Framework Supports for Selective Synthesis of Secondary Amines

Combined steam and dry reforming of methanol over Fe‐Mn‐Cu / ZrO 2 catalyst to syngas formation: Study about kinetic and fuzzy model approaches

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Combined steam and dry reforming of methanol over Fe‐Mn‐Cu / ZrO ₂ catalyst to syngas formation: Study about kinetic and fuzzy model approaches