Bimetallic catalysts for green methanol production<i>via</i>CO<sub>2</sub>and renewable hydrogen: a mini-review and prospects

Li, Molly Meng‐Jung; Tsang, Shik Chi Edman

doi:10.1039/c8cy00304a

Cited by 124 publications

(58 citation statements)

References 118 publications

Supporting

Mentioning

Contrasting

Unclassified

Order By: Relevance

“…This is mainly due to the chemical inertness and the lower conversion capacity of CO 2 in the reaction . The key to increasing CO 2 hydrogenation is to look for highly active catalysts . In recent years, research has been exploring ways to develop new and highly efficient catalysts to synthesize methanol from carbon dioxide hydrogenation in a more efficient way.…”

Section: Introductionmentioning

confidence: 99%

“…Researches are mainly focused on adding auxiliary elements to the catalysts of noble metal based catalysts (Pt, Au), Cu−Zn‐based catalysts and ultrafine catalysts . Among the various catalysts, Cu‐based catalysts are the most studied because of their economic advantage and more effective overall performance . So far, Cu−Zn‐Al (CZA) catalysts have been conventionally adopted for direct methanol synthesis .…”

Section: Introductionmentioning

confidence: 99%

See 1 more Smart Citation

CO₂ Hydrogenation to Methanol via In‐situ Reduced Cu/ZnO Catalyst Prepared by Formic acid Assisted Grinding

Chizema

Hondo

et al. 2019

ChemistrySelect

View full text Add to dashboard Cite

Methanol is an essential chemical raw material and potential alternative energy source. In this paper, Cu based catalyst was prepared by the noble solid phase grinding method for CO2 hydrogenation to methanol. The influence of chelating agent, heating rate, calcination temperature and calcination period of the precursor on catalyst performance were studied in depth. The catalyst precursor with formic acid as a chelating agent was reduced in‐situ when calcined in nitrogen (N2) at 573 K. The formic acid was decomposed, releasing the reducing agents, CO and H2, resulting in continuous in‐situ CuO reduction to metallic Cu0. XRD, XPS, BET, TG‐DSC, H2‐TPR and other characterization techniques were employed to analyze the catalyst properties. Results revealed that CuO was successfully reduced in‐situ to Cu0 during calcination process in a nitrogen atmosphere without further reduction. The catalyst prepared by formic acid grinding (F/I−Cu/ZnO) showed highest catalytic activity compared with the conventional catalyst which was further reduced by 5% H2 (F/H−Cu/ZnO). CO2 conversion and methanol selectivity reached 33.44% and 84.26%respectively.

show abstract

Section: Introductionmentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

CO₂ Hydrogenation to Methanol via In‐situ Reduced Cu/ZnO Catalyst Prepared by Formic acid Assisted Grinding

Chizema

Hondo

et al. 2019

ChemistrySelect

View full text Add to dashboard Cite

show abstract

“…Methanol production and methanol usage in the market [Colour figure can be viewed at wileyonlinelibrary.com]…”

Section: Methanol Reformingmentioning

confidence: 99%

An overview of the methanol reforming process: Comparison of fuels, catalysts, reformers, and systems

et al. 2019

View full text Add to dashboard Cite

Summary One of the main challenges facing power generation by fuel cells involves the difficulties related to hydrogen storage. Several methods have been suggested and studied by researchers to overcome this problem. Among these methods, using fuel reformers as a component of the fuel cell system is a practical and promising alternative to hydrogen storage. Among many hydrogen carrier fuels used in reformers, methanol is one of the most attractive ones because of its distinctive properties. To design and improve of the methanol reformate gas fuel cell systems, different aspects such as promising market applications for reformate gas–fueled fuel cell systems, and catalysts for methanol reforming should be considered. Therefore, our goal in this paper is to provide a comprehensive overview on the past and recent studies regarding methanol reforming technologies, while considering different aspects of this topic. Firstly, different fuel reforming processes are briefly explained in the first section of the paper. Then properties of various fuels and reforming of these fuels are compared, and the characteristics of commercial reformate gas–fueled systems are presented. The main objective of the first section of the paper is to give information about studies and market applications related to reformation of various fuels to understand advantages and disadvantages of using various fuels for different practical applications. In the next sections of the paper, advancements in the methanol reforming technology are explained. The methanol reforming catalysts and reaction kinetics studies by various researchers are reviewed, and the advantages and disadvantages of each catalyst are discussed, followed by presenting the studies accomplished on different types of reformers. The effects of operating parameters on methanol reforming are also discussed. In the last section of this paper, methanol reformate gas–fueled fuel cell systems are reviewed. Overall, this review paper provides insight to researchers on what has been accomplished so far in the field of methanol reforming for fuel cell power generation applications to better plan the next stage of studies in this field.

show abstract

“…[4][5][6] It is wellknown that the combined geometric and electronic effects are the key reasons for cooperative and synergistic catalytic performances between two metals present in the catalysts. [7][8][9][10] For example, NiÀ Mo bimetallics supported on different metal oxides were found to exhibit enhanced activity particularly in hydrodeoxygenation and dehydrosulfurization reactions. [11][12][13][14][15] Although many reports are available in the open domain, the MoÀ Ni synergism explained is limited to very few supports (mainly Al 2 O 3 ) and still there is significant scope for the improvements in this area when NiÀ Mo is supported on different metal oxides and zeolites.…”

Section: Introductionmentioning

confidence: 99%

Conversion of γ‐Valerolactone to Ethyl Valerate over Metal Promoted Ni/ZSM‐5 Catalysts: Influence of Ni⁰/Ni²⁺ Heterojunctions on Activity and Product Selectivity

et al. 2020

View full text Add to dashboard Cite

Promoter (Cr, Mo and W) modified Ni/ZSM‐5 catalysts were explored in the vapor phase conversion of γ‐valerolactone (GVL) to ethyl valerate (EV; gasoline blender) at atmospheric pressure. Among the three different promoters (Cr, Mo and W) tested the Mo‐modified catalyst was found to be the best candidate. In addition, this catalyst was found to be stable up to 50 h reaction time with an insignificant decrease in activity. The good catalytic performance is related to an optimal ratio of acid and hydrogenation functions provided by Ni2+ and Ni0, respectively. In situ FTIR spectroscopic studies revealed a strong adsorption of GVL on all catalysts which quickly reacts with dosed ethanol by formation of EV, most pronounced on the Mo‐modified catalyst, while VA was identified as side product. These findings suggest the preferred GVL ring opening by cracking the C−O bond on the methyl side of the GVL molecule on this type of catalysts leading to pentenoic acid as intermediate, which is quickly hydrogenated and esterified.

show abstract

Bimetallic catalysts for green methanol productionviaCO₂and renewable hydrogen: a mini-review and prospects

Abstract: This mini review discusses the recent advancements in the use of bimetallic catalysts for green methanol production via CO2 hydrogenation.

Cited by 124 publications

References 118 publications

CO₂ Hydrogenation to Methanol via In‐situ Reduced Cu/ZnO Catalyst Prepared by Formic acid Assisted Grinding

CO₂ Hydrogenation to Methanol via In‐situ Reduced Cu/ZnO Catalyst Prepared by Formic acid Assisted Grinding

An overview of the methanol reforming process: Comparison of fuels, catalysts, reformers, and systems

Conversion of γ‐Valerolactone to Ethyl Valerate over Metal Promoted Ni/ZSM‐5 Catalysts: Influence of Ni⁰/Ni²⁺ Heterojunctions on Activity and Product Selectivity

Contact Info

Product

Resources

About

Bimetallic catalysts for green methanol productionviaCO2and renewable hydrogen: a mini-review and prospects

Abstract: This mini review discusses the recent advancements in the use of bimetallic catalysts for green methanol production via CO2 hydrogenation.

Cited by 124 publications

References 118 publications

CO2 Hydrogenation to Methanol via In‐situ Reduced Cu/ZnO Catalyst Prepared by Formic acid Assisted Grinding

CO2 Hydrogenation to Methanol via In‐situ Reduced Cu/ZnO Catalyst Prepared by Formic acid Assisted Grinding

An overview of the methanol reforming process: Comparison of fuels, catalysts, reformers, and systems

Conversion of γ‐Valerolactone to Ethyl Valerate over Metal Promoted Ni/ZSM‐5 Catalysts: Influence of Ni0/Ni2+ Heterojunctions on Activity and Product Selectivity

Contact Info

Product

Resources

About

Bimetallic catalysts for green methanol productionviaCO₂and renewable hydrogen: a mini-review and prospects

CO₂ Hydrogenation to Methanol via In‐situ Reduced Cu/ZnO Catalyst Prepared by Formic acid Assisted Grinding

CO₂ Hydrogenation to Methanol via In‐situ Reduced Cu/ZnO Catalyst Prepared by Formic acid Assisted Grinding

Conversion of γ‐Valerolactone to Ethyl Valerate over Metal Promoted Ni/ZSM‐5 Catalysts: Influence of Ni⁰/Ni²⁺ Heterojunctions on Activity and Product Selectivity