Sustainable production of gluconic acid and glucuronic acid <i>via</i> microwave-assisted glucose oxidation over low-cost Cu-biochar catalysts

Zhang, Qiaozhi; Xu, Shuguang; Cao, Yaoyao; Ruan, Roger; Clark, James H.; Hu, Changwei; Tsang, Daniel C.W.

doi:10.1039/d2gc02568j

Cited by 27 publications

(5 citation statements)

References 45 publications

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“…Employing Cu catalysts supported by biochars, they achieved yields of 39.0% and 30.7% for GUA and GOA, respectively. These favorable catalytic outcomes are ascribed to the high percentage of Cu and Cu 2 O species, along with a substantial presence of oxygenated functionalities within the biochar matrix [120]. Catalytic hydrogenation of aldehydes holds significance as a stabilizing step in the conversion of bio-oils.…”

Section: Chemical Productionmentioning

confidence: 99%

Renewable Carbonaceous Materials from Biomass in Catalytic Processes: A Review

Villora-Picó,

González-Arias,

Baena-Moreno

et al. 2024

Materials

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This review paper delves into the diverse ways in which carbonaceous resources, sourced from renewable and sustainable origins, can be used in catalytic processes. Renewable carbonaceous materials that come from biomass-derived and waste feedstocks are key to developing more sustainable processes by replacing traditional carbon-based materials. By examining the potential of these renewable carbonaceous materials, this review aims to shed light on their significance in fostering environmentally conscious and sustainable practices within the realm of catalysis. The more important applications identified are biofuel production, tar removal, chemical production, photocatalytic systems, microbial fuel cell electrodes, and oxidation applications. Regarding biofuel production, biochar-supported catalysts have proved to be able to achieve biodiesel production with yields exceeding 70%. Furthermore, hydrochars and activated carbons derived from diverse biomass sources have demonstrated significant tar removal efficiency. For instance, rice husk char exhibited an increased BET surface area from 2.2 m2/g to 141 m2/g after pyrolysis at 600 °C, showcasing its effectiveness in adsorbing phenol and light aromatic hydrocarbons. Concerning chemical production and the oxidation of alcohols, the influence of biochar quantity and pre-calcination temperature on catalytic performance has been proven, achieving selectivity toward benzaldehyde exceeding 70%.

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Section: Chemical Productionmentioning

confidence: 99%

Renewable Carbonaceous Materials from Biomass in Catalytic Processes: A Review

Villora-Picó,

González-Arias,

Baena-Moreno

et al. 2024

Materials

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“…To reduce the cost associated with the catalyst, Tsang et al 88 tested a series of low-cost Cu catalysts on a biochar support for base-free oxidation of glucose to glucuronic and gluconic acids under microwave irradiation. The maximum yields of 39.0% and 30.7% were obtained in 20 min reaction time at 160 °C.…”

Section: Heterogeneous Catalysismentioning

confidence: 99%

Selective oxidation of biomass-derived carbohydrate monomers

et al. 2023

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“…Unfortunately, the resulting glucose conversions and product selectivities are often very poor. Besides, ultrasound 18,19 and microwave-assisted 20,21 oxidative glucose conversion have also been utilized, which can improve oxidation efficiency. However, the high cost of the equipment and possible radiation hazards also limit their widespread use.…”

Section: Introductionmentioning

confidence: 99%