Hydrogenation of CO2 to methanol over In2O3 catalyst

Sun, Kaihang; Fan, Zhigang; Ye, Jingyun; Yan, Junhao; Ge, Qingfeng; Li, Yanan; He, Wen; Yang, Weimin; Liu, Changjun

doi:10.1016/j.jcou.2015.09.002

Cited by 249 publications

(151 citation statements)

References 38 publications

(68 reference statements)

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“…[93,[99][100][101] ZrO 2 is sometimes added as at extural and electronic promoter.I nC O 2 hydrogenation to olefins, addingZ rO 2 increases thes tabilityo ft he catalystb yp reventing sintering. The Cu/ZnO/Al 2 O 3 system currently employed for methanol synthesis from mixed syngas exhibitslimited activity in CO 2 hydrogenation, so it is not ag ood candidate.…”

Section: The Catalystsmentioning

confidence: 99%

“…These studies indicate that the oxygen vacancies of In 2 O 3 and Ga 2 O 3 may be the catalytic sites at which CO 2 is activated and hydrogenated to methanol. [93,[99][100][101] ZrO 2 is sometimes added as at extural and electronic promoter.I nC O 2 hydrogenation to olefins, addingZ rO 2 increases thes tabilityo ft he catalystb yp reventing sintering. [93,98] It also increases the density of oxygen vacancies, thereby increasing CO 2 activation.…”

Section: The Catalystsmentioning

confidence: 99%

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A Critical Look at Direct Catalytic Hydrogenation of Carbon Dioxide to Olefins

2019

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ReviewsScheme2.Redox (left) and associative (right) reaction pathways for the RWGS reaction. [82] Scheme3.Reduction and carburization steps of an iron-based catalyst. [83] Scheme4.Catalytic activity (top) and iron-phase composition of the catalyst (bottom) as af unction of time during the reaction. Reactionconditions:H 2 / CO 2 = 3, 250 8C, 1MPa, FeÀAlÀCuÀ9K catalyst. FT refers to the Fischer-Tropschr eaction. Arrows indicatethe increase or decrease of reaction yield/iron phase during ac ertain episode. [84] ChemSusChem

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Section: The Catalystsmentioning

confidence: 99%

Section: The Catalystsmentioning

confidence: 99%

A Critical Look at Direct Catalytic Hydrogenation of Carbon Dioxide to Olefins

2019

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“…To alleviate the problems, the CO 2 conversions through photocatalytic, chemical, and electrochemical have become the focus of the research, which could realize the sustainable carbon cycle. [ 1–5 ] Especially, electrochemical reduction of CO 2 (ERC) has attracted great interests, since it can be not only feasibly performed under normal pressure and room temperature, but also driven by renewable energy systems. [ 6 ] Furthermore, many kinds of useful chemicals with improved energy density can be selectively obtained on diverse catalysts through ERC.…”

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confidence: 99%

Efficient CO₂ Reduction to HCOOH with High Selectivity and Energy Efficiency over Bi/rGO Catalyst

et al. 2020

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have been dedicated to produce HCOOH (or HCOO − ) through ERC. Several metals, such as Pd, Pb, Hg, In, and Cd, exhibit good selectivity for HCOOH, while some of them are plagued by the shortcomings of scarcity, high cost or toxicity. [19][20][21][22] Besides, many catalysts exhibit low cathodic energy efficiency (EE), indicating the large energy consumption, because of the high overpotential and low Faradaic efficiency (FE) of products. [14] Therefore, developing the resource-abundant catalysts with high FE and low overpotential to increase EE is significant while still very challenging.Theoretically, Bi might be an intriguing catalyst for ERC as it is ecofriendly, costeffective, and inferior for H 2 evolution. There are several reports on the carbon monoxide (CO) production in ionic liquid electrolyte by using Bi-based materials. [23][24][25][26] However, ERC is more appealing in aqueous solution for practical application. Recently, some efforts have been dedicated to the HCOOH (or HCOO − ) production in aqueous solution over Bi-based catalysts. [27][28][29][30][31] Moreover, Bi shows a relatively positive electrode potential, which is conducive to obtain the high cathodic EE and long-term stability. Thus, it is desired to improve Bi-based catalysts with high selectivity and cathodic EE for HCOOH production in aqueous solution.Herein, the ultrafine Bi nanoparticles (NPs) anchored on reduced graphene oxide (Bi/rGO) is synthesized and employed for ERC in 0.1 m KHCO 3 electrolyte. As a result, the synthesized Bi/rGO endows the ERC with excellent performance under normal pressure and room temperature. It almost outperforms all recently reported electrocatalysts with the highest 98% FE and meanwhile a high cathodic EE of 71% for HCOOH at −0.8 V versus RHE (the voltages reported here are against RHE unless noted), which is also comparable with the most existing catalysts for the HCOOH production. Moreover, the obtained FE of HCOOH and current density show negligible deterioration over 12 h, illustrating the favorable stability of Bi/ rGO.Bi/rGO is synthesized through a facile reduction route by using a reducing agent of sodium borohydride. For comparison, pure Bi and Bi-PVP using the polyvinylpyrrolidone (PVP) as the dispersant are also prepared as well. As shown in Figure 1a, the diffraction peaks of all three samples can be assigned to metallic Bi (JCPDS: 44-1246). [32] Additionally, high-resolution X-ray photoelectron spectroscopy (XPS) spectra (Figure 1b) also manifest that only Bi metal exists in all samples. The Bi 4f signals at 156.8 and 162.1 eV for Bi-PVP and pure Bi are in the The electroreduction of carbon dioxide (CO 2 ) to value-added fuels is of great significance to meet the ever-increasing energy and environmental challenges. So far, desirable selectivity and Faradaic efficiency for CO 2 reduction can be obtained over most electrocatalysts. However, improving cathodic energy efficiency is still neglected in research. Herein, a facile reduction method is first presented to synthesize the ultrafine non-n...

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“…Finally, the performance of the Pd 2 Ga/SiO 2 catalyst was compared with the reported literature (Table ) on low‐pressure methanol synthesis from CO 2 hydrogenation. The rate of methanol formation over Pd 2 Ga/SiO 2 catalyst is higher than that reported for most of the catalysts at atmospheric pressure . Table shows that the intermetallic Pd–Ga is more active and selective than Pd/ZnO, 37.5 PdCuZn/SiC, and Cu/ZnO catalyst.…”

Section: Catalyst Activity Testingmentioning

confidence: 73%

Influence of reduction temperature on the formation of intermetallic Pd₂Ga phase and its catalytic activity in CO₂ hydrogenation to methanol

Ahmad

Upadhyayula

2019

Greenhouse Gases

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The global warming and change in climatic conditions due to rising concentration of CO2 in atmosphere are the most important challenges of 21st century. Catalytic conversion of CO2 to methanol will not only check global warming but also provide an alternative source of fuel. The phase purity of solid catalysts has a considerable influence on the desired product selectivity. Reduction temperature is one of the most important parameters responsible for catalyst phase formation. Herein, the effect of a range of reduction temperatures between 100 and 600°C on the phase composition of Pd–Ga bimetallic catalyst and CO2 hydrogenation to methanol activity was investigated. X‐ray diffraction (XRD) analysis revealed the formation of different phases at different reduction temperatures. The variation in catalyst structure was also analyzed using field emission scanning electron microscope‐energy dispersive X‐ray spectroscopy (FESEM‐EDS), Brunaue–Emmett–Teller, H2 chemisorption, and transmission electron microscopy techniques. The influence of reduction temperature, pressure (1–25 bar), H2/CO2 ratio (3–9), and reaction temperature (150–250°C) on methanol and CO selectivity from CO2 hydrogenation at atmospheric pressure was also studied. © 2019 Society of Chemical Industry and John Wiley & Sons, Ltd.

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Hydrogenation of CO2 to methanol over In2O3 catalyst

Cited by 249 publications

References 38 publications

A Critical Look at Direct Catalytic Hydrogenation of Carbon Dioxide to Olefins

A Critical Look at Direct Catalytic Hydrogenation of Carbon Dioxide to Olefins

Efficient CO₂ Reduction to HCOOH with High Selectivity and Energy Efficiency over Bi/rGO Catalyst

Influence of reduction temperature on the formation of intermetallic Pd₂Ga phase and its catalytic activity in CO₂ hydrogenation to methanol

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Hydrogenation of CO2 to methanol over In2O3 catalyst

Cited by 249 publications

References 38 publications

A Critical Look at Direct Catalytic Hydrogenation of Carbon Dioxide to Olefins

A Critical Look at Direct Catalytic Hydrogenation of Carbon Dioxide to Olefins

Efficient CO2 Reduction to HCOOH with High Selectivity and Energy Efficiency over Bi/rGO Catalyst

Influence of reduction temperature on the formation of intermetallic Pd2Ga phase and its catalytic activity in CO2 hydrogenation to methanol

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Efficient CO₂ Reduction to HCOOH with High Selectivity and Energy Efficiency over Bi/rGO Catalyst

Influence of reduction temperature on the formation of intermetallic Pd₂Ga phase and its catalytic activity in CO₂ hydrogenation to methanol