Sophisticated Construction of Binary PdPb Alloy Nanocubes as Robust Electrocatalysts toward Ethylene Glycol and Glycerol Oxidation

Xu, Hui; Song, Pingping; Fernandez, Carlos; Wang, Jin; Zhu, Mingshan; Shiraishi, Yukihide; Du, Yukou

doi:10.1021/acsami.8b00532

Cited by 147 publications

(69 citation statements)

References 60 publications

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“…Precious metal‐based electrocatalysts including Pt, Pd, and Au have been suggested as anodes for GOR. However, their high cost and deterioration of their performance hindered their commercial application.…”

Section: Introductionmentioning

confidence: 99%

“…[31] Unlike typical nanocrystalline electrodes, dendrite growth provides high connectivity between the building units of the 3D structures together with providing very high electrochemical active surface area (ECSA) and a large number of electroactive surface sites, in addition to improving the charge transport properties of the created 3D structures. [31] Precious metal-based electrocatalysts including Pt, [33] Pd, [34,35] and Au [15] have been suggested as anodes for GOR. However, their high cost and deterioration of their performance hindered their commercial application.…”

Section: Introductionmentioning

confidence: 99%

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Tailor‐Designed Porous Catalysts: Nickel‐Doped Cu/Cu₂O Foams for Efficient Glycerol Electro‐Oxidation

et al. 2020

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Herein, Cu/Cu2O foams with dendritic‐like structures were electrodeposited atop a smooth Cu electrode by using a dynamic hydrogen bubbles technique, and they were used as efficient electrocatalysts for glycerol electrooxidation. The morphology, structure, and composition of the as‐prepared Cu/Cu2O foams were tuned by using additives (e. g. KCl and NiCl2) in the copper deposition bath to maximize their electrocatalytic performance towards glycerol electrooxidation. The as‐synthesized Cu/Cu2O foams showed superior electrocatalytic activity towards the glycerol oxidation reaction, as demonstrated by the significant negative shift in the onset potential (ca. 400 mV) together with an oxidation current that is up to six times higher, compared to the Cu/Cu2O non‐porous film with the same loading. The performance of these foams was further improved by introducing optimum amounts of either Ni2+ and/or Cl− ions. These additives resulted in a significant change in the structure and shape of the electrodeposited Cu/Cu2O textures with a concurrent increase in their roughness. Material and electrochemical characterization (e. g. SEM, XRD, XPS, LSV and CV) techniques were used to link the observed enhancements to the morphology, composition, and structure of the as‐synthesized Cu/Cu2O foam materials.

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Section: Introductionmentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

Tailor‐Designed Porous Catalysts: Nickel‐Doped Cu/Cu₂O Foams for Efficient Glycerol Electro‐Oxidation

et al. 2020

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“…The slope of Tafel of MnCo 2 S 4 /NF is 150.8 mV/dec, which is lower than NF (385.4 mV/dec), Mn(OH) 2 /NF(214.12 mV/dec) and Mn−Co‐OH/NF (336.09 mV/dec), indicating that in the electrochemical test, the reaction kinetics of the synthetic catalyst is easier to carry out, which is beneficial to the formation of oxygen. At the same time, in an alkaline solution, the OER reaction consists of three steps: (1) M + H 2 O ⇌ M‐OH + H + + e − ; (2) M‐OH ⇌ M−O + H + + e − ; (3) M−O ⇌ M + O 2 , where M represents an electrocatalyst. If step (1), step (2) or step (3) is the determining steps of the OER reaction rate, respectively, the Tafel slopes that overcome the reaction kinetics are 120, 40 and 15 (mV/dec).…”

Section: Resultsmentioning

confidence: 99%

Preparation of 3D nanostructured MnCo₂S₄ as a robust electrocatalyst for overall water splitting

Hou

et al. 2019

ChemistrySelect

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The exploitation and use of efficient and inexpensive electrochemical catalysts accelerate overall water splitting, which rapidly produces oxygen and hydrogen. In this work, MnCo2S4 is grown on nickel foam by a two‐step method, hydrothermal and sulfuration method. Experiments have shown that the resulting MnCo2S4/NF exhibits a low overpotential of 310 mV to achieve a current density of 50 mA cm−2 in 1.0 M potassium hydroxide for oxygen evolution reaction (OER). In addition, the MnCo2S4/NF exhibits a low overpotential of only 167 mV at 10 mA cm−2 for hydrogen evolution reaction (HER). Furthermore, MnCo2S4/NF is acted as a bifunctional water splitting catalyst, and in 1.0 M potassium hydroxide, in order to maintain a current of 10 mA cm−2, a low battery voltage of 1.61 V is required. The nanostructure, which provides a large specific surface area, which in turn increases the reactive sites, facilitates contact of large areas of water with the catalyst, and rapid transfer of electrons. At the same time, through a series of characterization (XRD, SEM and XPS), it is proved that the catalyst is efficient and stable under alkaline condition.

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“…In a typical LFC, the liquid fuel is oxidized at the anode and oxygen is reduced at the cathode. Hence, the properties of the anode catalysts largely control the performance of the LFCs …”

Section: Introductionmentioning

confidence: 99%

Recent Achievements in Noble Metal Catalysts with Unique Nanostructures for Liquid Fuel Cells

Sun

2020

ChemSusChem

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In recent years, research efforts have been focused on the design and fabrication of highly efficient catalysts for liquid fuel cells, because the use of these cells is an important approach for alleviating environmental pollution and energy crises. However, the limitations of the catalytic performance of industrial Pt/C have strongly hindered the development of these fuel cells. The catalyst morphology has a strong impact on its performance; nanostructured catalysts are preferred as they offer large specific surface area and more exposed active centers. In view of this, many catalysts with unique structures have been synthesized in recent years, all of which show excellent catalytic performance characteristics. Despite these achievements, few efforts have been made to survey this field comprehensively. Herein, the recent advances in catalysts for liquid fuel cells are summarized, with a focus on noble metal catalysts with unique morphologies such as nanowires, nanosheets, and assembly structures. Their formation mechanisms are discussed critically. The relationship between the unique morphologies and excellent performance of these catalysts is also explored. This work may provide guidelines for the further development of liquid fuel cells.

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Sophisticated Construction of Binary PdPb Alloy Nanocubes as Robust Electrocatalysts toward Ethylene Glycol and Glycerol Oxidation

Cited by 147 publications

References 60 publications

Tailor‐Designed Porous Catalysts: Nickel‐Doped Cu/Cu₂O Foams for Efficient Glycerol Electro‐Oxidation

Tailor‐Designed Porous Catalysts: Nickel‐Doped Cu/Cu₂O Foams for Efficient Glycerol Electro‐Oxidation

Preparation of 3D nanostructured MnCo₂S₄ as a robust electrocatalyst for overall water splitting

Recent Achievements in Noble Metal Catalysts with Unique Nanostructures for Liquid Fuel Cells

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Sophisticated Construction of Binary PdPb Alloy Nanocubes as Robust Electrocatalysts toward Ethylene Glycol and Glycerol Oxidation

Cited by 147 publications

References 60 publications

Tailor‐Designed Porous Catalysts: Nickel‐Doped Cu/Cu2O Foams for Efficient Glycerol Electro‐Oxidation

Tailor‐Designed Porous Catalysts: Nickel‐Doped Cu/Cu2O Foams for Efficient Glycerol Electro‐Oxidation

Preparation of 3D nanostructured MnCo2S4 as a robust electrocatalyst for overall water splitting

Recent Achievements in Noble Metal Catalysts with Unique Nanostructures for Liquid Fuel Cells

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Product

Resources

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Tailor‐Designed Porous Catalysts: Nickel‐Doped Cu/Cu₂O Foams for Efficient Glycerol Electro‐Oxidation

Tailor‐Designed Porous Catalysts: Nickel‐Doped Cu/Cu₂O Foams for Efficient Glycerol Electro‐Oxidation

Preparation of 3D nanostructured MnCo₂S₄ as a robust electrocatalyst for overall water splitting