Inducing synergy in bimetallic RhNi catalysts for CO2 methanation by galvanic replacement

Wang, Yuan; Arandiyan, Hamidreza; Bartlett, Stuart A.; Trunschke, Annette; Sun, Hongyu; Scott, Jason; Lee, Adam F.; Wilson, Karen; Maschmeyer, Thomas; Schlögl, Robert; Amal, Rose

doi:10.1016/j.apcatb.2020.119029

Cited by 49 publications

(27 citation statements)

References 49 publications

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Section: Promotion With Noble Metalsmentioning

confidence: 63%

“…Contrasting the results discussed until now [115,117], there are a number of works that observe a deactivating effect of Rh presence in Ni-based catalysts. Mutz et al [46] reported that a NiRh0.1 catalyst supported on Al2O3 showed inferior CO2 conversion to a Contrasting the results discussed until now [115,117], there are a number of works that observe a deactivating effect of Rh presence in Ni-based catalysts. Mutz et al [46] reported that a NiRh 0.1 catalyst supported on Al 2 O 3 showed inferior CO 2 conversion to a similar monometallic Ni catalyst over the entire temperature range tested.…”

Section: Promotion With Rhmentioning

confidence: 64%

“…Thus, the galvanic replacement method, which rests on the reduction potential difference between the various redox metal pairs, was shown to be an effective strategy for the preparation of bimetallic catalysts [118]. Contrasting the results discussed until now [115,117], there are a number of works that observe a deactivating effect of Rh presence in Ni-based catalysts. Mutz et al [46] reported that a NiRh0.1 catalyst supported on Al2O3 showed inferior CO2 conversion to a Contrasting the results discussed until now [115,117], there are a number of works that observe a deactivating effect of Rh presence in Ni-based catalysts.…”

Section: Promotion With Rhmentioning

confidence: 99%

“…The architecture of bimetallic NiRh catalysts supported on Al 2 O 3 was also modified by Wang et al [ 117 ]. On the one hand, the method of galvanic replacement (GR) led to the formation of a Ni@Rh core-shell catalyst, where Ni nanoparticles were encapsulated by an atomically thin RhO x shell.…”

Section: Promotion With Noble Metalsmentioning

confidence: 99%

“…Therefore, Rh insertion in Ni-based catalysts does not always lead to an activity enhancement and it appears that certain requirements need to be followed, such as the existence of highly dispersed NiRh alloys with strong metal–support interaction, or the fine dispersion of Rh on top of Ni particles [ 115 , 117 ]. In any case, the very high cost of Rh renders it unattractive for use as promoter in Ni-based catalysts, especially when comparable activity promotion can be achieved via the use of cheaper metals, like Ru.…”

Section: Promotion With Noble Metalsmentioning

confidence: 99%

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Bimetallic Ni-Based Catalysts for CO2 Methanation: A Review

et al. 2020

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CO2 methanation has recently emerged as a process that targets the reduction in anthropogenic CO2 emissions, via the conversion of CO2 captured from point and mobile sources, as well as H2 produced from renewables into CH4. Ni, among the early transition metals, as well as Ru and Rh, among the noble metals, have been known to be among the most active methanation catalysts, with Ni being favoured due to its low cost and high natural abundance. However, insufficient low-temperature activity, low dispersion and reducibility, as well as nanoparticle sintering are some of the main drawbacks when using Ni-based catalysts. Such problems can be partly overcome via the introduction of a second transition metal (e.g., Fe, Co) or a noble metal (e.g., Ru, Rh, Pt, Pd and Re) in Ni-based catalysts. Through Ni-M alloy formation, or the intricate synergy between two adjacent metallic phases, new high-performing and low-cost methanation catalysts can be obtained. This review summarizes and critically discusses recent progress made in the field of bimetallic Ni-M (M = Fe, Co, Cu, Ru, Rh, Pt, Pd, Re)-based catalyst development for the CO2 methanation reaction.

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Section: Promotion With Noble Metalsmentioning

confidence: 63%

Section: Promotion With Rhmentioning

confidence: 64%

Section: Promotion With Rhmentioning

confidence: 99%

Section: Promotion With Noble Metalsmentioning

confidence: 99%

Section: Promotion With Noble Metalsmentioning

confidence: 99%

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Bimetallic Ni-Based Catalysts for CO2 Methanation: A Review

et al. 2020

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RuCo/ZrO₂ Tandem Catalysts with Photothermal Confinement Effect for Enhanced CO₂ Methanation

Yang,

Liu,

Xing

et al. 2024

Advanced Science

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Photothermal CO2 methanation reaction represents a promising strategy for addressing CO2‐related environmental issues. The presence of efficient tandem catalytic sites with a localized high‐temperature is an effective pathway to enhance the performance of CO2 methanation. Here the bimetallic RuCo nanoparticles anchored on ZrO2 fiber cotton (RuCo/ZrO2) as a photothermal catalyst for CO2 methanation are prepared. A significant photothermal CO2 methanation performance with optimal CH4 selectivity (99%) and rate (169.93 mmol gcat−1 h−1) is achieved. The photothermal energy of the RuCo bimetallic nanoparticles, confined by the infrared insulation and low thermal conductivity of the ZrO2 fiber cotton (ZrO2 FC), provides a localized high‐temperature. In situ spectroscopic experiments on RuCo/ZrO2, Ru/ZrO2, and Co/ZrO2 indicate that the construction of tandem catalytic sites, where the Co site favors CO2 conversion to CO while incorporating Ru enhances CO* adsorption for subsequent hydrogenation, results in a higher selectivity toward CH4. This work opens a new insight into designing tandem catalysts with a photothermal confinement effect in CO2 methanation reaction.

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Stabilization and anchoring of palladium‐copper alloy on murexide modified carbon nanotube as a superb nanocatalyst: Excellent performance in coupling and synthetic reactions

Mohammadlou,

Noroozi Pesyan

2023

Applied Organom Chemis

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Sketching a proper catalytic system with supplementary attributes, containing easy separation, wide surface area, supreme loading capacity, and fantastical electronic attributes, proposes an encouraging direction for efficiently using nanostructures for various applications. However, the capability to adjust the nano‐measure bimetallic particles is an adjustment for attaining superb performance in the catalytic field. Herein, an environmentally benign approach was developed for immobilizing and anchoring Pd‐Cu alloy nanoparticles on murexide (MX)‐functionalized carbon nanotubes (CNTs). Afterward, the catalytic activity of Pd2‐Cu3@MX/CNT was studied in synthesizing 2,3‐dihydro quinazoline‐4(1H)‐ones and carbon–carbon coupling reactions at sustainable reaction conditions under ultrasound irradiation. The results demonstrated that high‐affinity MX ligand and porous CNT structures than the adsorption of Pd–Cu had a unique designation in the high‐range constancy of the alloy nanoparticles and following catalytic activity. In addition, ultrasound irradiation got electrons of Pd–Cu alloy nanoparticles agitated, constructing a synergic efficacy between Cu and Pd metals for synthesis and coupling reactions. Our study represents that the designed catalyst is green, recyclable, and most suitable, providing new intuition into in high‐range constancy of bimetallic nanoparticles for broad applications.

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Inducing synergy in bimetallic RhNi catalysts for CO2 methanation by galvanic replacement

Cited by 49 publications

References 49 publications

Bimetallic Ni-Based Catalysts for CO2 Methanation: A Review

Bimetallic Ni-Based Catalysts for CO2 Methanation: A Review

RuCo/ZrO₂ Tandem Catalysts with Photothermal Confinement Effect for Enhanced CO₂ Methanation

Stabilization and anchoring of palladium‐copper alloy on murexide modified carbon nanotube as a superb nanocatalyst: Excellent performance in coupling and synthetic reactions

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Inducing synergy in bimetallic RhNi catalysts for CO2 methanation by galvanic replacement

Cited by 49 publications

References 49 publications

Bimetallic Ni-Based Catalysts for CO2 Methanation: A Review

Bimetallic Ni-Based Catalysts for CO2 Methanation: A Review

RuCo/ZrO2 Tandem Catalysts with Photothermal Confinement Effect for Enhanced CO2 Methanation

Stabilization and anchoring of palladium‐copper alloy on murexide modified carbon nanotube as a superb nanocatalyst: Excellent performance in coupling and synthetic reactions

Contact Info

Product

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About

RuCo/ZrO₂ Tandem Catalysts with Photothermal Confinement Effect for Enhanced CO₂ Methanation