In situ construction of hierarchical Ag-decorated Cu nanowire arrays as an efficient and durable electrocatalyst for hydrogenation of 5-hydroxymethylfurfural and furfural

Electrocatalytic Refinery of Biomass-Based 5-Hydroxymethylfurfural to Fine Chemicals

“…Zhong et al reported in situ synthesis of hierarchical Ag-decorated Cu nanowire arrays on Cu-foam (Ag@Cu NWAs/CF) that exhibited ≥95% for both DHMF selectivity and FE, and maintained ≥92% FE following six electroreduction reactions. 57 This was because of a significant electroactive surface area, good electronic transmission network, high mechanical strength, and synergic coordination of Ag and Cu active sites, Figure 7h. Cu nanowires that were grown on Cufoam significantly boosted charge transport from the substrate to catalytically active sites and provided more space for Ag decoration.…”

“…Design for bimetallic electrodes is conventionally important for boosted performance of electrolysis reactions involving the HER, CO 2 reduction, glycerol oxidation, and furfural hydrogenation because of facilitated catalytic activity compared with monometallic electrodes . Several authors have reported that Ag–Cu metallic electrodes can concurrently exhibit greater FE and selectivity for DHMF than Ag or Cu monometallic electrodes. ,,,, Co et al reportedly prepared Ag-porous nano Cu via dealloying and galvanic displacement presented as AgCu Figure c, and obtained almost 100% FE for DHMF formation in a 0.5 M borate buffer (pH 9.2) . Additionally, Roylance et al reported that Cu-foil-based high-surface-area Ag-electrodes (Ag gd ) exhibited a more positive onset potential for HMF reduction in a 0.5 M borate buffer (pH 9.2) compared with morphologically flat Ag-electrodes (Ag sp ).…”

“…The morphology of ER Cu NWs/CF synthesized according to the method reported by Zhang et al is shown in Figure g. Zhong et al reported in situ synthesis of hierarchical Ag-decorated Cu nanowire arrays on Cu-foam (Ag@Cu NWAs/CF) that exhibited ≥95% for both DHMF selectivity and FE, and maintained ≥92% FE following six electroreduction reactions . This was because of a significant electroactive surface area, good electronic transmission network, high mechanical strength, and synergic coordination of Ag and Cu active sites, Figure h.…”

Electrocatalysis as an efficient alternative to thermal catalysis over PtRu bimetallic catalysts for hydrogenation of benzoic acid derivatives

“…4a and S19-21 †), which attains more intimate contact between the catalyst and electrolyte with open space and provides an adequate amount of accessible active sites at the three-phase interface, developing rapid mass transfer. 32 Efficient electronic transmission is beneficial for improving catalytic ability during the ECH process. The morphology and size of metal nanoparticles for Pt/CP are not uniform through the CV electrodeposition method (Fig.…”

Recent progress of Cu-based electrocatalysts for upgrading biomass-derived furanic compounds

“…79,80 Zhong et al reported on an array of Cu nanowires (Ag@Cu NWAs/CF) decorated with layered Ag synthesized in situ on Cu foam. 81 The hierarchical structure of Ag@Cu NWAs/CF exposed more active sites than those on Cu NWAs/CF, Ag/CF, and CF, which significantly boosted mass transfer with superior selectivity and FE of FAL (96.6% and 96.1%).…”