PdIn intermetallic nanoparticles for the Hydrogenation of CO2 to Methanol

García‐Trenco, Andrés; Regoutz, Anna; White, Edward M.; Payne, David J.; Shaffer, Milo S. P.; Williams, Charlotte K.

doi:10.1016/j.apcatb.2017.07.069

Cited by 188 publications

(146 citation statements)

References 64 publications

Supporting

Mentioning

137

Contrasting

Unclassified

Order By: Relevance

“…In addition, it is worth mentioning that the order of the catalytic activities of the examined catalysts is in good agreement with the order of their desorbed CO 2 amounts in CO 2 ‐TPD experiments. Third, metal–metal oxide interface is also the probable active sites for CH 3 OH synthesis . For this system, it can be observed that the interface between Cu 2 In and In 2 O 3 is beneficial for enhancing the catalytic performance.…”

Section: Resultsmentioning

confidence: 85%

“…Figure b shows In 3 d core level spectra of the reduced In@SiO 2 , CuIn@SiO 2 , and CuIn/SiO 2 . The In 3 d 5/2 and In 3 d 3/2 peaks of In@SiO 2 occur at 444.4 and 452.0 eV, illustrating that the indium valence exists mainly as +3 for reduced In@SiO 2 . However, the In 3 d spectra of the reduced CuIn@SiO 2 and CuIn/SiO 2 are dominated at lower binding energies of 443.8 and 451.4 eV.…”

Section: Resultsmentioning

confidence: 94%

“…The two reduced bimetallic catalysts show the Cu 2 p 3/2 and Cu 2 p 1/2 peaks at 932.3 and 952.2 eV, respectively, 0.4–0.6 eV lower than those of Cu@SiO 2 . The shift of Cu 2 p peak positions of the bimetallic catalysts is due to the Cu‐In alloy formation . Figure b shows In 3 d core level spectra of the reduced In@SiO 2 , CuIn@SiO 2 , and CuIn/SiO 2 .…”

Section: Resultsmentioning

confidence: 99%

See 2 more Smart Citations

A novel Core–Shell structured CuIn@SiO₂ catalyst for CO₂ hydrogenation to methanol

Shi

Tan

2018

AIChE Journal

View full text Add to dashboard Cite

CO 2 hydrogenation is one of the most promising processes in response to energy crisis and greenhouse gas emission. There is, however, still a lack of a highly efficient and sustainable catalyst for this reaction. In this study, a novel low-cost coreshell structured CuIn@SiO 2 catalyst is prepared by a solvothermal method and used for catalyzing CO 2 hydrogenation to methanol. A significant interaction exists between Cu and In, promoting Cu dispersion and reducibility, Cu 2 In alloy and oxygen vacancy formation. Moreover, plenty of interfacial sites are formed between Cu 2 In and In 2 O 3 , which further enhances CO 2 adsorption and activation. CuIn@SiO 2 , therefore, shows not only a satisfactory catalytic stability due to core-shell formation but also an excellent catalytic performance. 9.8% CO 2 conversion, 78.1% CH 3 OH selectivity, and 13.7 mmol CH 3 OH Áh −1 Ág cat −1 CH 3 OH space-time yield are obtained at the space velocity of 20,000 mLÁg cat −1 Áh −1 . CuIn@SiO 2 possesses a great potential as catalyst for CO 2 hydrogenation in a moderate condition in industry.

show abstract

Section: Resultsmentioning

confidence: 85%

Section: Resultsmentioning

confidence: 94%

Section: Resultsmentioning

confidence: 99%

See 1 more Smart Citation

A novel Core–Shell structured CuIn@SiO₂ catalyst for CO₂ hydrogenation to methanol

Shi

Tan

2018

AIChE Journal

View full text Add to dashboard Cite

show abstract

“…It is interesting that the catalysts exhibit higher methanol rates than the Cu−ZnO−Al 2 O 3 catalyst, and the optimum Pd−In catalyst showed an improved methanol selectivity over the whole temperature range studied (190–270 °C). This is a nice reference for the research of bimetallic catalysts used for CO 2 hydrogenation …”

Section: Introductionmentioning

confidence: 99%

The Synergistic Effect of CuZnCeO_x in Controlling the Formation of Methanol and CO from CO₂ Hydrogenation

Qin

Guan

et al. 2018

ChemCatChem

View full text Add to dashboard Cite

CO 2 hydrogenation will be essential for a sustainable society if methanol and CO can be efficiently obtained using appropriate catalysts. In this paper, a highly efficient CuZnCeO x catalyst was synthesized using a parallel flow coprecipitation method, and was evaluated in CO 2 hydrogenation to produce methanol and CO. Interestingly, the catalyst shows excellent activity and stability, and the selectivity of the products can be controlled by the amount of CeO x . Characterization results show that a significant synergistic effect between Cu and metal oxides (ZnO and/or CeO x ) was observed at the composite catalysts. Cu plays a critical role in the activation of H 2 , and CeO x strongly adsorbs CO 2 . CeO x improved the dispersion of Cu nanoparticles and promoted the spillover of atomic hydrogen, which was beneficial to the generation of methanol. Meanwhile, ZnO exhibited weak adsorption ability for CO 2 , which was beneficial for the generation of CO. In addition, ZnO can significantly improve the dispersion of the CeO x nanoparticles. Both the dispersion of active sites and the activation abilities of CO 2 are critical for catalyst activity and product selectivity. Thus, the ternary catalyst CuZnCeO x shows higher performance than the binary catalysts (CuZnO x and CuCeO x ) in the CO 2 hydrogenation reaction. This paper provides a viable way to produce selectively methanol or CO from CO 2 hydrogenation.[a] Dr.

show abstract

“…Industrial CO‐to‐methanol CZA catalysts are also regarded as practical catalysts for CO 2 ‐to‐methanol conversion . The studies of CO 2 ‐to‐methanol conversion include many aspects such as reaction mechanism, metal–support interaction, promoters, stability, synthetic methods, alternatives to Cu/ZnO, and effect of reaction conditions . However, many issues still remain to be resolved, including the restricted CO 2 hydrogenation activity by the inhibiting effect of generated water [Eq.…”

Section: Introductionmentioning

confidence: 99%

Capsule‐Structured Copper–Zinc Catalyst for Highly Efficient Hydrogenation of Carbon Dioxide to Methanol

Guo

Chen

et al. 2019

ChemSusChem

View full text Add to dashboard Cite

To develop a new and efficient CO2‐to‐methanol catalyst is of extreme significance but still remains a challenge. Herein, an innovative indirect two‐step strategy is reported to synthesize a highly efficient capsule‐structured copper‐based CO2‐to‐methanol catalyst (CZA‐r@CZM). It consists of a structurally reconstructed millimeter‐sized Cu/ZnO/Al2O3 core (CZA‐r) with intensified Cu–ZnO interactions, which is made by a facile hydrothermal treatment in an alkaline aqueous solution, and a Cu/ZnO/MgO (CZM) shell prepared by an ethylene glycol‐assisted physical coating method. The CZA‐r core displays 2.7 times higher CO2 hydrogenation activity with 2.0 times higher CO selectivity than the previously reported Cu/ZnO/Al2O3 (CZA‐p), whereas the CZM shell can efficiently catalyze hydrogenation of the as‐formed CO from the CZA‐r core to methanol as it passes through the shell. As a result, the developed capsule‐structured CZA‐r@CZM catalyst exhibits 2.4 times higher CO2 conversion with 1.8 times higher turnover frequency and 2.3‐fold higher methanol space–time yield than the CZA‐p catalyst (729.8 vs. 312.6 gMeOH kgcat−1 h−1). In situ diffuse reflectance infrared Fourier transform spectroscopy (DRIFTs) experiments reveal that the CO2 hydrogenation reaction proceeds through a reverse water–gas shift reaction followed by a CO hydrogenation pathway via an *H3CO intermediate. This work not only produces an efficient CO2‐to‐methanol catalyst, but also opens a new avenue for designing superior catalysts for other consecutive transformations.

show abstract

PdIn intermetallic nanoparticles for the Hydrogenation of CO2 to Methanol

Cited by 188 publications

References 64 publications

A novel Core–Shell structured CuIn@SiO₂ catalyst for CO₂ hydrogenation to methanol

A novel Core–Shell structured CuIn@SiO₂ catalyst for CO₂ hydrogenation to methanol

The Synergistic Effect of CuZnCeO_x in Controlling the Formation of Methanol and CO from CO₂ Hydrogenation

Capsule‐Structured Copper–Zinc Catalyst for Highly Efficient Hydrogenation of Carbon Dioxide to Methanol

Contact Info

Product

Resources

About

PdIn intermetallic nanoparticles for the Hydrogenation of CO2 to Methanol

Cited by 188 publications

References 64 publications

A novel Core–Shell structured CuIn@SiO2 catalyst for CO2 hydrogenation to methanol

A novel Core–Shell structured CuIn@SiO2 catalyst for CO2 hydrogenation to methanol

The Synergistic Effect of CuZnCeOx in Controlling the Formation of Methanol and CO from CO2 Hydrogenation

Capsule‐Structured Copper–Zinc Catalyst for Highly Efficient Hydrogenation of Carbon Dioxide to Methanol

Contact Info

Product

Resources

About

A novel Core–Shell structured CuIn@SiO₂ catalyst for CO₂ hydrogenation to methanol

A novel Core–Shell structured CuIn@SiO₂ catalyst for CO₂ hydrogenation to methanol

The Synergistic Effect of CuZnCeO_x in Controlling the Formation of Methanol and CO from CO₂ Hydrogenation