Anchoring RuxP on 3D hollow graphene nanospheres as efficient and pH-universal electrocatalysts for the hydrogen evolution reaction

Li, Ji-Sen; Li, Jiayi; Huang, Ming; Kong, Lingxin; Wu, Zexing

doi:10.1016/j.carbon.2020.01.049

Cited by 65 publications

(37 citation statements)

References 58 publications

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“…[8][9][10][11] However,t heir large-scale industrial applicationsh ave been limited due to high cost and poor stability. [12,13] Therefore, cost-effective and highly efficient tran-sition metal compounds such as transition metal oxides, [14,15] carbides/nitrides, [16][17][18] sulfides, [19][20][21] and phosphides [22][23][24][25] have attracted ag reat deal of attention for HER.…”

Section: Introductionmentioning

confidence: 99%

Rational Design and Controlled Synthesis of V‐Doped Ni₃S₂/Ni_xP_y Heterostructured Nanosheets for the Hydrogen Evolution Reaction

Wang

Zhao

et al. 2020

Chemistry A European J

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Rational construction of high‐efficiency and low‐cost catalysts is one of the most promising ways to produce hydrogen but remains a huge challenge. Herein, interface engineering and heteroatom doping were used to synthesize V‐doped sulfide/phosphide heterostructures on nickel foam (V‐Ni3S2/NixPy/NF) by phosphating treatment at low temperature. The incorporation of V can adjust the electronic structure of Ni3S2, expose more active sites, and protect the 3D structure of Ni foam from damage. Meanwhile, the heterogeneous interface formed between Ni3S2 and NixPy can provide abundant active sites and accelerate electron transfer. As a result, the V‐Ni3S2/NixPy/NF nanosheet catalyst exhibits outstanding activity in the hydrogen evolution reaction (HER) with an extremely low overpotential of 90 mV at a current density of 10 mA cm−2 and stable durability in alkaline solution, which exceeds those most of the previously reported Ni‐based materials. This work shows that rational design by interfacial engineering and metal‐atom incorporation has a significant influence for efficient hydrogen evolution.

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Section: Introductionmentioning

confidence: 99%

Rational Design and Controlled Synthesis of V‐Doped Ni₃S₂/Ni_xP_y Heterostructured Nanosheets for the Hydrogen Evolution Reaction

Wang

Zhao

et al. 2020

Chemistry A European J

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“…3) The intimate contact of Pt nanoclusters with graphene spheres effectively resists the aggregation, Ostwald ripening, and detachment of Pt nanoclusters, enhancing the electrochemical stability. [ 55–57 ] Taken together, the catalytically active small‐sized Pt nanoclusters and 3D GHSs synergistically give rise to excellent HER activity and stability.…”

Section: Resultsmentioning

confidence: 99%

Low‐Load Pt Nanoclusters Anchored on Graphene Hollow Spheres for Efficient Hydrogen Evolution

et al. 2020

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Efficient water splitting through electrocatalysis has been studied extensively in modern energy devices, whereas the development of catalysts with high activity and stability with low‐load Pt is still a great challenge. Through the spatial confinement effect and template method, herein, hollow graphene spheres with functionalized Pt nanoclusters (Pt/GHSs) are constructed and developed as effective electrocatalysts for the hydrogen evolution reaction (HER). Electrochemical tests show that Pt/GHSs exhibit a high electrocatalytic activity and stability compared with commercial Pt/C catalysts toward HER in alkaline media. The electric double‐layer capacitance value reaches 26.0 mF cm−2, indicating that Pt/GHSs have a large electrochemically active area. Meanwhile, the load of metal Pt in the Pt/GHSs is only one‐fifth of commercial Pt/C catalysts, which significantly reduces the production cost of the catalyst. Herein a new opportunity for the low‐cost mass production of efficient and stable catalysts for practical applications is provided.

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“…The HER performance of CoFeP@Ru was tested in a N 2saturated 0.5 M H 2 SO 4 electrolyte. [25,26] For comparison, the electrocatalytic properties of Pt/C, CoP@Ru ( Figure S4), Co 2 P ( Figure S5), and Ru were also measured. As shown in Figure 3a, the Co 2 P catalyst delivers inferior HER activity with a high onset potential (η onset ) of 354 mV and a large overpotential (η 10 ) of 670 mV.…”

Section: Resultsmentioning

confidence: 99%

“…The HER performance of CoFeP@Ru was tested in a N 2 ‐saturated 0.5 M H 2 SO 4 electrolyte . For comparison, the electrocatalytic properties of Pt/C, CoP@Ru (Figure S4), Co 2 P (Figure S5), and Ru were also measured.…”

Section: Resultsmentioning

confidence: 99%

Constructing a Rod‐like CoFeP@Ru Heterostructure with Additive Active Sites for Water Splitting

Liu

et al. 2020

ChemCatChem

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Interfacial engineering and defect modulation can provide abundant active sites for catalysts to further boost the catalysis process. In this work, we develop a strategy to grow multiheterogeneous cobalt phosphide (CoP) nanorods with rich interfaces and defects along the one-dimensional (1D) nanostructure by dual incorporation of Fe and Ru (CoFeP@Ru). Such a catalyst exhibits high activity and stability towards the hydrogen evolution reaction (HER) and oxygen evolution reaction (OER), with overpotentials of only 38 mV in 0.5 M H 2 SO 4 and 48 mV in 1.0 M KOH for HER, and an overpotential of 340 mV in 0.1 M KOH for OER at 10 mA cm À 2. Finally, as the bifunctional catalyst, an alkali electrolyzer is assembled and delivers at a low cell voltage, with almost 100 % Faradaic efficiency. Our experimental results demonstrate that Fe incorporation can disturb or even break the periodic structure of cobalt phosphides, causing a redistribution of the electronic structure and electron density of activity sites, while Ru can significantly enhance the catalytic kinetics, as well as electrochemical and mechanical stability.

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Anchoring RuxP on 3D hollow graphene nanospheres as efficient and pH-universal electrocatalysts for the hydrogen evolution reaction

Cited by 65 publications

References 58 publications

Rational Design and Controlled Synthesis of V‐Doped Ni₃S₂/Ni_xP_y Heterostructured Nanosheets for the Hydrogen Evolution Reaction

Rational Design and Controlled Synthesis of V‐Doped Ni₃S₂/Ni_xP_y Heterostructured Nanosheets for the Hydrogen Evolution Reaction

Low‐Load Pt Nanoclusters Anchored on Graphene Hollow Spheres for Efficient Hydrogen Evolution

Constructing a Rod‐like CoFeP@Ru Heterostructure with Additive Active Sites for Water Splitting

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Anchoring RuxP on 3D hollow graphene nanospheres as efficient and pH-universal electrocatalysts for the hydrogen evolution reaction

Cited by 65 publications

References 58 publications

Rational Design and Controlled Synthesis of V‐Doped Ni3S2/NixPy Heterostructured Nanosheets for the Hydrogen Evolution Reaction

Rational Design and Controlled Synthesis of V‐Doped Ni3S2/NixPy Heterostructured Nanosheets for the Hydrogen Evolution Reaction

Low‐Load Pt Nanoclusters Anchored on Graphene Hollow Spheres for Efficient Hydrogen Evolution

Constructing a Rod‐like CoFeP@Ru Heterostructure with Additive Active Sites for Water Splitting

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Rational Design and Controlled Synthesis of V‐Doped Ni₃S₂/Ni_xP_y Heterostructured Nanosheets for the Hydrogen Evolution Reaction

Rational Design and Controlled Synthesis of V‐Doped Ni₃S₂/Ni_xP_y Heterostructured Nanosheets for the Hydrogen Evolution Reaction