Methanol production from CO2 reduction over Ni/TiO2 catalyst

Athikaphan, Pakpoom; Neramittagapong, Sutasinee; Assawasaengrat, Pornsawan; Neramittagapong, Arthit

doi:10.1016/j.egyr.2020.11.059

Cited by 15 publications

(10 citation statements)

References 11 publications

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“…A study was reported by Neramittagapong et al for the photo-catalytic CO 2 reduction over the Ni/TiO 2 catalyst, and they found 272.45 μmol/g cat of methanol. [35] In another work, the synthesis of Wse 2 -Graphene-TiO 2 photocatalyst was carried out for the methanol formation (6.32 μmol/ g cat h). [36] A work reported by Yu et al for the photo-catalytic CO 2 reduction in the presence of the aqueous NaHCO 3 solution into the methanol (0.6 μmol/g cat h) over the g-C 3 N 4 /ZnO catalyst.…”

Section: Comparative Study Of Photocatalytic Methanol Production With...mentioning

confidence: 99%

A Magnetically Separable Fe₃O₄@EDTA‐gC₃N₄ Versatile Mesoporous Photocatalyst for CO₂ Reduction and Water Splitting into Solar Fuels**

et al. 2023

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This study discusses CO2 valorization and water splitting via photocatalysis using non‐noble metal magnetically separable Fe‐supported EDTA‐g‐C3N4. A mesoporous and magnetically separable Fe3O4@EDTA‐g‐C3N4 (F‐E‐g‐CN ) hybrid photocatalyst was synthesized for the first time with abundant catalytic sites. Ethylenediaminetetraacetic acid (EDTA) played crucial roles in the heterostructured catalysts, such as linking Fe3O4 and g‐CN together and enhancing charge transfer facilitating a reduced band gap from 2.23 to 0.67 eV in F‐E‐g‐CN (1 : 1). The results indicate a promising yield of methanol (375.56 μmol g−1cat), formic acid (18.70 μmol g−1cat), and hydrogen (59.49 μmol hg−1cat) under the optimized reaction conditions. The catalyst revealed an increase in photoactivity for CO2 conversion and water splitting by factor of 12.38 and 12.05 for methanol and 100‐fold higher for hydrogen production than the pure g‐CN and E‐g‐CN, respectively. An isotopic tracer experiment was carried out using 13CO2, confirming the carbon source of methanol. This research will offer additional in‐depth insights into the design of photocatalytic CO2 reduction and water‐splitting reactions based on g‐CN.

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Section: Comparative Study Of Photocatalytic Methanol Production With...mentioning

confidence: 99%

A Magnetically Separable Fe₃O₄@EDTA‐gC₃N₄ Versatile Mesoporous Photocatalyst for CO₂ Reduction and Water Splitting into Solar Fuels**

et al. 2023

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“…Therefore, it may be said that the experiment period of the HCOOH formation was completed when the reaction components were irradiated for 5 h. On the other hand, with the increasing irradiation period up to 3 h, CH 3 OH generation increased. More irradiation was applied to the reaction mixture for up to an additional 8 h, and we noticed that the production was decreased with time which could be due to the methanol oxidation process . Hence, it is concluded that 3 h is the optimum irradiation time for the production of methanol.…”

Section: Photocatalytic Studymentioning

confidence: 84%

“…More irradiation was applied to the reaction mixture for up to an additional 8 h, and we noticed that the production was decreased with time which could be due to the methanol oxidation process. 66 Hence, it is concluded that 3 h is the optimum irradiation time for the production of methanol.…”

Section: ■ Photocatalytic Studymentioning

confidence: 97%

Metal-Free Covalent Organic Framework for Facile Production of Solar Fuel via CO₂ Reduction

Das

Chowdhury

et al. 2022

Ind. Eng. Chem. Res.

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We describe the facile hydrothermal synthesis of a sponge-like 2D layered triazine based covalent organic framework (COF) structure. The substance comprises of 18.49 nm nanoparticles and well-organized mesopores across its 2D layers. This highly ordered π-conjugated metal-free COF structure possesses 1.86 eV band gap energy and performs as a potential photocatalyst to form formic acid as well as methanol via CO2 (1 atm) reduction under visible light irradiation. The effect of different parameters like solvent type, sacrificial electron donor, time, light intensity, etc. was studied for the production of formic acid as well as methanol. Sunlight irradiation also showed a promising production rate for formic acid and methanol. The synthesized COF material is available to reuse for manifold reaction cycles with its catalytic efficiency without affecting its structural and morphological features.

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“…Nature (Brønsted or Lewis), acid strength (weak to moderate) as well as the textural properties (mesoporosity) of acidic sites play a basic role in the performance of methanol dehydration. Various catalysts for CO2 hydrogenation have been investigated, including [69][70][71][72][73][74][75][76], Pd-based catalysts [77][78][79][80], and bimetallic catalysts such as Pd-Ni, Fe-Ni, Ni-Ti, and Pd-Zn as effective couple for methanol production [81][82][83][84][85]. Among these catalysts, Cu-ZnO-based catalysts are the most widely used [86][87][88][89][90] because the Cu and ZnO loadings play a critical role in the physicochemical properties and catalytic performance of catalysts [91].…”

Section: Bifunctional Hybrid Catalystsmentioning

confidence: 99%

“…To accomplish the improved photoactivity, many researchers tried to modify TiO2 by doping with metal. The saturation method was applicated in Ni/TiO2 catalysts preparation, using TiO2 as support and Ni(NO3)2.6H2O as a precursor of Ni [107]. A batch reactor equipped with a 60 W-UV light source was used for the experiments.…”

Section: Photocatalysis Technologymentioning

confidence: 99%

Direct catalytic production of dimethyl ether from CO and CO2: A review

Akhoondi

Osman

Eslami³

2021

Synth. Sinter.

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Dimethyl ether (DME) is a synthetically produced alternative fuel to diesel-based fuel and could be used in ignition diesel engines due to increasing energy demand. DME is considered extremely clean transportation and green fuel because it has a high cetane number (around 60), low boiling point (−25 °C), and high oxygen amount (35 wt%) which allow fast evaporation and higher combustion quality (smoke-free operation and 90% fewer NOx emissions) than other alternative CO2-based fuels. DME can be synthesized from various routes such as coal, petroleum, and bio-based material (i.e., biomass and bio-oil). Dimethyl ether can be produced from CO2 to prevent greenhouse gas emissions. This review aims to summarize recent progress in the field of innovative catalysts for the direct synthesis of dimethyl ether from syngas (CO+H2) and operating conditions. The problems of this process have been raised based on the yield and selectivity of dimethyl ether. However, regardless of how syngas is produced, the estimated total capital and operating costs in the industrial process depend on the type of reactor and the separation method.

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Methanol production from CO2 reduction over Ni/TiO2 catalyst

Cited by 15 publications

References 11 publications

A Magnetically Separable Fe₃O₄@EDTA‐gC₃N₄ Versatile Mesoporous Photocatalyst for CO₂ Reduction and Water Splitting into Solar Fuels**

A Magnetically Separable Fe₃O₄@EDTA‐gC₃N₄ Versatile Mesoporous Photocatalyst for CO₂ Reduction and Water Splitting into Solar Fuels**

Metal-Free Covalent Organic Framework for Facile Production of Solar Fuel via CO₂ Reduction

Direct catalytic production of dimethyl ether from CO and CO2: A review

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Methanol production from CO2 reduction over Ni/TiO2 catalyst

Cited by 15 publications

References 11 publications

A Magnetically Separable Fe3O4@EDTA‐gC3N4 Versatile Mesoporous Photocatalyst for CO2 Reduction and Water Splitting into Solar Fuels**

A Magnetically Separable Fe3O4@EDTA‐gC3N4 Versatile Mesoporous Photocatalyst for CO2 Reduction and Water Splitting into Solar Fuels**

Metal-Free Covalent Organic Framework for Facile Production of Solar Fuel via CO2 Reduction

Direct catalytic production of dimethyl ether from CO and CO2: A review

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Product

Resources

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A Magnetically Separable Fe₃O₄@EDTA‐gC₃N₄ Versatile Mesoporous Photocatalyst for CO₂ Reduction and Water Splitting into Solar Fuels**

A Magnetically Separable Fe₃O₄@EDTA‐gC₃N₄ Versatile Mesoporous Photocatalyst for CO₂ Reduction and Water Splitting into Solar Fuels**

Metal-Free Covalent Organic Framework for Facile Production of Solar Fuel via CO₂ Reduction