Electroreductive C O coupling of benzaldehyde over SACs Au–NiMn2O4 spinel synergetic composites

Qin, Meichun; Fan, Shiying; Li, Xinyong; Tadé, Moses O.; Liu, Shaomin

doi:10.1016/j.jcis.2022.06.021

Cited by 7 publications

(4 citation statements)

References 52 publications

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“…Electrochemical dimerization (ECD) is a method for increasing the molar mass of biooil while simultaneously removing reactive functional groups (i.e., carbonyls) [62,102,103]. ECD occurs through the generation of organic radicals on the surface of a catalyst [62,102,103]. As both ECH and ECD are performed in reducing environments, their products are usually observed together.…”

Section: Electrochemical Dimerizationmentioning

confidence: 99%

“…Selective dimerization is favorable, particularly using catalysts that have very high overpotentials for HER, since high quantities of adsorbed hydrogen result in increased ECH rates [104]. ECD is relevant for compounds containing carbonyl groups including furfural [62], benzaldehyde [102], acetophenone [105] and HMF [104]. Figure 5 shows a reaction scheme for the dimerization of benzaldehyde and furfural.…”

Section: Electrochemical Dimerizationmentioning

confidence: 99%

“…adsorbed hydrogen result in increased ECH rates [104]. ECD is relevant for compounds containing carbonyl groups including furfural [62], benzaldehyde [102], acetophenone [105] and HMF [104]. Figure 5 shows a reaction scheme for the dimerization of benzaldehyde and furfural.…”

Section: Electrochemical Dimerizationmentioning

confidence: 99%

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Recent Progress in Electrochemical Upgrading of Bio-Oil Model Compounds and Bio-Oils to Renewable Fuels and Platform Chemicals

et al. 2023

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Sustainable production of renewable carbon-based fuels and chemicals remains a necessary but immense challenge in the fight against climate change. Bio-oil derived from lignocellulosic biomass requires energy-intense upgrading to produce usable fuels or chemicals. Traditional upgrading methods such as hydrodeoxygenation (HDO) require high temperatures (200–400 °C) and 200 bar of external hydrogen. Electrochemical hydrogenation (ECH), on the other hand, operates at low temperatures (<80 °C), ambient pressure, and does not require an external hydrogen source. These environmental and economically favorable conditions make ECH a promising alternative to conventional thermochemical upgrading processes. ECH combines renewable electricity with biomass conversion and harnesses intermediately generated electricity to produce drop-in biofuels. This review aims to summarize recent studies on bio-oil upgrading using ECH focusing on the development of novel catalytic materials and factors impacting ECH efficiency and products. Here, electrode design, reaction temperature, applied overpotential, and electrolytes are analyzed for their impacts on overall ECH performance. We find that through careful reaction optimization and electrode design, ECH reactions can be tailored to be efficient and selective for the production of renewable fuels and chemicals. Preliminary economic and environmental assessments have shown that ECH can be viable alternative to convention upgrading technologies with the potential to reduce CO2 emissions by 3 times compared to thermochemical upgrading. While the field of electrochemical upgrading of bio-oil has additional challenges before commercialization, this review finds ECH a promising avenue to produce renewable carbon-based drop-in biofuels. Finally, based on the analyses presented in this review, directions for future research areas and optimization are suggested.

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Section: Electrochemical Dimerizationmentioning

confidence: 99%

Section: Electrochemical Dimerizationmentioning

confidence: 99%

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Recent Progress in Electrochemical Upgrading of Bio-Oil Model Compounds and Bio-Oils to Renewable Fuels and Platform Chemicals

et al. 2023

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“…In recent year, electroreductive organic conversion has gained immense popularity in field of organic chemical syn- thesis, owing to its advantageous features, such as mild reaction conditions, high energy utilization rate, and highly controllable reaction [12][13][14][15][16][17][18][19][20] Liu and his colleagues developed an innovative method for synthesizing pinacol by electroreductive coupling of carbonyl compounds in a single electrolyzer [21] Encouraging by the results and following our continuous interests in electrochemistry, [22][23][24] herein we carried out the electrochemical carbonyl reduction to produce the pinacol products and the continuous pinacol rearrangement reaction in the presence of cucurbit [7]uril (Q [7]) compound (Scheme 2).…”

Section: Introductionmentioning

confidence: 99%

Electroreductive Coupling of Aldehydes and Subsequent Pinacol Rearrangement for 1,2‐Disubstituted Ethanones

et al. 2023

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An electrochemical method for the generation of 1,2‐diols through the reductive coupling of aldehydes has been developed, and the 1,2‐diols were used directly without separation for the pinacol rearrangement process. The electro‐organic strategy had mild reaction conditions and avoided the use of reductants. The pinacol rearrangement was controllable to access to the hydride‐migrated product 1,2‐disubstituted. The key factor in selectivity was the use of macrocyclic compound cucurbit[7]uril, which plays a key role in the interaction with aromatic ring of 1,2‐diol. On the basis of experimental results, the mechanism, include the electroreductive coupling and pinacol rearrangement process, was illustrated.

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Recent progresses in the single-atom catalysts for the oxygen reduction reaction

Xu²,

Ai³

et al. 2022

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Electroreductive C O coupling of benzaldehyde over SACs Au–NiMn2O4 spinel synergetic composites

Cited by 7 publications

References 52 publications

Recent Progress in Electrochemical Upgrading of Bio-Oil Model Compounds and Bio-Oils to Renewable Fuels and Platform Chemicals

Recent Progress in Electrochemical Upgrading of Bio-Oil Model Compounds and Bio-Oils to Renewable Fuels and Platform Chemicals

Electroreductive Coupling of Aldehydes and Subsequent Pinacol Rearrangement for 1,2‐Disubstituted Ethanones

Recent progresses in the single-atom catalysts for the oxygen reduction reaction

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