One-pot solvothermal synthesis of PdCu nanocrystals with enhanced electrocatalytic activity toward glycerol oxidation and hydrogen evolution

Wang, Rui; Jiang, Liu-Ying; Feng, Jiu‐Ju; Liu, Weidong; Yuan, Junhua; Wang, Ai‐Jun

doi:10.1016/j.ijhydene.2016.12.100

Cited by 32 publications

(21 citation statements)

References 54 publications

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“…The X-ray diffraction (XRD) patterns (Supplementary Fig. 1e ) of the as-synthesized Pd 59 Cu 30 Co 11 nanocrystals showed four peaks located at 40.45, 47.05, 68.70, and 81.85° 2 θ that can be indexed to (111), (200), (220), and (311) planes of the fcc Pd (JCPDS-46-1403) 44 , respectively. The diffraction pattern is not characteristic of fcc Cu (JCPDS-04-0836) 23 and fcc Co (JCPDS-15-0806) 45 phases.…”

Section: Resultsmentioning

confidence: 99%

Dendritic defect-rich palladium–copper–cobalt nanoalloys as robust multifunctional non-platinum electrocatalysts for fuel cells

et al. 2018

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Recently, the development of high-performance non-platinum electrocatalysts for fuel cell applications has been gaining attention. Palladium-based nanoalloys are considered as promising candidates to substitute platinum catalysts for cathodic and anodic reactions in fuel cells. Here, we develop a facile route to synthesize dendritic palladium–copper–cobalt trimetallic nanoalloys as robust multifunctional electrocatalysts for oxygen reduction and formic acid oxidation. To the best of our knowledge, the mass activities of the dendritic Pd59Cu30Co11 nanoalloy toward oxygen reduction and formic acid oxidation are higher than those previously reported for non-platinum metal nanocatalysts. The Pd59Cu30Co11 nanoalloys also exhibit superior durability for oxygen reduction and formic acid oxidation as well as good antimethanol/ethanol interference ability compared to a commercial platinum/carbon catalyst. The high performance of the dendritic Pd59Cu30Co11 nanoalloys is attributed to a combination of effects, including defects, a synergistic effect, change of d-band center of palladium, and surface strain.

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Section: Resultsmentioning

confidence: 99%

Dendritic defect-rich palladium–copper–cobalt nanoalloys as robust multifunctional non-platinum electrocatalysts for fuel cells

et al. 2018

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“…However, this value is smaller than that of Pt/C (47.6 m 2 g −1 Pt ), due to the fact that PtCu DNFs provide the smaller active area accessible for the reactants. 40 42 Furthermore, the overpotential (η) at 10 mA cm −2 for PtCu DNFs (27 mV) is smaller than Pt/C (37 mV), PtCu NPHs (66 mV) and Pt black (78 mV), verifying the fast and efficient electron transfer occurred at PtCu DNFs. 43 Usually, the Tafel slope is applied to investigate the catalytic features for HER and the reaction kinetics of nanocatalysts.…”

Section: Acs Applied Energy Materialsmentioning

confidence: 82%

Solvothermal Synthesis of Monodisperse PtCu Dodecahedral Nanoframes with Enhanced Catalytic Activity and Durability for Hydrogen Evolution Reaction

Zhang

Wang

Zhang

et al. 2018

ACS Appl. Energy Mater.

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Nanoframes (NFs) with highly open structures have attracted substantial attention because of their large surface area, three-dimensional structure and good stability, which are of significance to enhance the catalytic characters. However, it is still challenging to develop facile and efficient method to construct Pt-based NFs with tailored structures. Herein, a simple solvothermal method was developed to prepare monodisperse PtCu dodecahedral nanoframes (PtCu DNFs), where cetyltrimethylammonium chloride (CTAC) served as the structure-director and dispersing agent, oleylamine as reductant, allantoin as the co-structure-director and coreductant. The PtCu DNFs displayed remarkably improved catalytic performances for hydrogen evolution reaction (HER) in both acid and alkaline electrolytes relative to homemade PtCu nanopolyhedrons (NPHs), commercial Pt/C (20 wt%) and Pt black catalysts. The work offers some instructive guidelines for synthesis of novel metallic NFs as efficient HER catalysts.

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“…Munoz et al, 65 Wang et al, 66 and Wang et al 67 investigated the Pd-Cu catalyst performance with a fixed molar ratio. The results collected in Munoz et al 65 study showed that the fuel cell test was less pronounced, with only 32% power density higher than Pd/C-anode fuel cell performance.…”

Section: Development Of Pt-based and Pdbased Catalyst With Copper Metalmentioning

confidence: 99%

“…The results collected in Munoz et al 65 study showed that the fuel cell test was less pronounced, with only 32% power density higher than Pd/C-anode fuel cell performance. Wang et al 66 applied a solvothermal strategy in synthesising Pd-Cu nanocrystals (NCs) assembled by smaller grains and presented a raspberry-like structure. The unique structure provided high ECSA for activity enhancement.…”

Section: Development Of Pt-based and Pdbased Catalyst With Copper Metalmentioning

confidence: 99%

Research and innovation in the electrocatalyst development toward glycerol oxidation reaction

2021

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Direct glycerol fuel cell (DGFCs) is an interesting type of fuel cell that can produce energy and high-end chemicals using excess and less expensive fuel, glycerol. The commercialization of DGFCs meets with many challenges, especially on its catalyst development. Common catalysts usually tested in DGFCs are platinum-based (Pt) and palladium-based catalyst (Pd). The expensive value of the noble metal such as Pt and Pd becomes a limitation towards the commercialization. This review shows and summarizes numerous improvements achieved on the anode catalyst for GOR to reduce the noble metal dependency while maximizing the activity performance, durability-stability, and GOR yield selectivity on certain valuable chemicals introducing multiple optimized syntheses methods with timesaving and cost-effective benefits. Finally, this review proposes the next direction of catalyst development to be taken in the future based on the recent developments and innovations implemented and tested.

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One-pot solvothermal synthesis of PdCu nanocrystals with enhanced electrocatalytic activity toward glycerol oxidation and hydrogen evolution

Cited by 32 publications

References 54 publications

Dendritic defect-rich palladium–copper–cobalt nanoalloys as robust multifunctional non-platinum electrocatalysts for fuel cells

Dendritic defect-rich palladium–copper–cobalt nanoalloys as robust multifunctional non-platinum electrocatalysts for fuel cells

Solvothermal Synthesis of Monodisperse PtCu Dodecahedral Nanoframes with Enhanced Catalytic Activity and Durability for Hydrogen Evolution Reaction

Research and innovation in the electrocatalyst development toward glycerol oxidation reaction

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