Metallic Ni3Mo3N Porous Microrods with Abundant Catalytic Sites as Efficient Electrocatalyst for Large Current Density and Superstability of Hydrogen Evolution Reaction and Water Splitting

Chen, Yuke; Yu, Jiayuan; Jia, Jin; Fan, Liangdong; Zhang, Yunwu; Xiong, Guowei; Zhang, Ruitong; Yang, Ruiqi; D, Sun; Liu, Hong; Zhou, Weijia

doi:10.1016/j.apcatb.2020.118956

Cited by 163 publications

(79 citation statements)

References 42 publications

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“…[25] Similar to the Mo, the oxidation peaks of Ni 2 + (855.2 eV, 872.9 eV), Ni 3 + (857.2 eV, 875.2 eV), Fe 2 + (710.3 eV, 723.1 eV) and Fe 3 + (711.7 eV, 724.7 eV) are also observed. The XPS spectra of N 1s (Figure 4d) were detected at 397.3 eV, 393.8 eV, and 399.6 eV, corresponding to NÀ metal bonding, Mo 3p, and pyrrolic N, respectively, which further confirms the existence of Ni 2 Mo 3 N. [24] Lastly, the C 1s peak can be divided into CÀ C (284.4 eV), CÀ N (286.1 eV), CÀ O (287.2 eV) and C=O (288.2 eV) from Figure S4b. [18] These results further confirmed that NiMoFe@NC700 contain nitrogen doped carbon matrix, Ni 2 Mo 3 N and FeNi alloy.…”

Section: Resultsmentioning

confidence: 55%

“…As shown in Figure 4a, the Mo 3d XPS spectrum contains the peaks of Mo 2 + and Mo 6 + , which locate at 228.7, 232 eV for Mo 3d 5/2 , 231.1, 234.8 eV for Mo 3d 3/2 , respectively. [24] the Mo 2 + should be derived from Ni 2 Mo 3 N, while Mo 6 + should be produced by partial oxidation of the surface. The four peaks (851.7 eV for Ni 2p 3/2 , 867 eV for Ni 2p 1/2 , 706.8 eV for Fe 2p 3/2 and 720 eV for Fe 2p 1/2 ) of Ni 0 and Fe 0 can be seen from Figure 4b and 4c, which Figure 2.…”

Section: Resultsmentioning

confidence: 99%

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Design of Trimetallic NiMoFe Hollow Microspheres with Polyoxometalate‐Based Metal‐Organic Frameworks for Enhanced Oxygen Evolution Reaction

Lin

Zhu

et al. 2021

ChemElectroChem

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Design of efficient and inexpensive oxygen evolution reaction (OER) catalysts is the key to realizing the wide application of water electrolysis in industrial production. Herein, we synthesized trimetallic hollow microspheres composed with FeNi nanoparticles and nitrogen-doped carbon-based Ni 2 Mo 3 N (Ni-MoFe@NC700) using a "PBA@POMOF" strategy. In order to synthesize the precursor with ideal morphology and structure in the least steps, a polyoxometalate based metal-organic framework (POMOF) is used as a substrate to grow a NiÀ Febased Prussian blue analogue (NiFePBA) on it. Benefiting from the hollow sphere structure formed by stacking flakes, better charge transfer performance and the synergistic effect between Ni 2 Mo 3 N and Fe 0.64 Ni 0.36 , the final product, NiMoFe@NC700, exhibits low overpotentials of 288 and 360 mV to achieve current densities of 10 and 50 mA cm À 2 for OER in 1 M KOH, respectively, which is superior to the benchmark IrO 2 catalyst. This work proposes a facile and effective strategy to synthetize carbon-based polymetallic OER electrocatalysts based on PBA@POMOF.

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Section: Resultsmentioning

confidence: 55%

Section: Resultsmentioning

confidence: 99%

Design of Trimetallic NiMoFe Hollow Microspheres with Polyoxometalate‐Based Metal‐Organic Frameworks for Enhanced Oxygen Evolution Reaction

Lin

Zhu

et al. 2021

ChemElectroChem

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“…However, the scarcity and high cost of Pt seriously limit its application in electrolytic water 12,13 . Therefore, many low-cost transition metal based catalysts have been developed 14 , such as transition metal based multicomponent alloys 15,16 , carbides 17 ， phosphide 14,18 , nitride 19 and sulfides 20 , or utilizes synergistic effect by stacking the two materials together to construct heterojunction structure to improve the catalytic activity 21 . However, the stable working lifetimes of these catalysts are generally short 22,23,24 .…”

Section: Introductionmentioning

confidence: 99%

A Free-standing Nanoporous NiCoFeMoMn High Entropy Alloy as An Efficient Electrocatalyst Fast Driving Water Splittling

Líu

Qin

Kang

et al. 2021

Preprint

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The development of low-cost non-noble metal-based electrocatalysts that can work stably at high current densities for the application of Hydrogen evolution reaction (HER) and oxygen evolution reaction (OER) in electrolyzed water is paramount crucial. Herein, we report a free-standing nanoporous high entropy alloy foil as dual-functional electrocatalyst via a combination of one-step dealloying and polarization, which exhibits excellent electrocatalytic activity in alkaline electrolyte with an extremely small overpotential of 150 mV at 1000 mA cm-2 for HER and a low Tafel slope of 29 mV dec-1 in 1 M KOH solution; At the same current density, the overpotential of OER is only 350 mV. The alkaline electrolyzer using it as both anode and cathode only need a cell voltage of 1.47 V to output a stable current density of 10 mA cm-2, enabling it as an efficient bifunctional electrocatalyst for alkaline overall water splitting, and remarkably better stability for more than 375 hours of continuous hydrogen production while providing substantial material cost savings relative to platinum. DFT calculations indicate that the ultrahigh HER activity of catalyst is originated from the synergetic eﬀect of optimized hydrogen adsorption in the segregation area and enhanced H2O adsorption in the un-segregation area produced by spinodal decomposition.

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“…In order to alleviate environment pollution and energy crisis caused by massive burning of non-renewable fossil fuels, [1][2][3] searching for renewable and pollution-free energy, such as hydrogen, is urgently needed. [4][5] Driven by electrical energy which can be continuously supplied via wind, solar and tidal energy, hydrogen generation from water splitting is considered as a promising technology, which exhibits high conversion efficiency and produces higher-purity hydrogen. [6,7] As one of half reactions of electrochemical water splitting, [8] oxygen evolution reaction OER shows sluggish kinetics, which needs to be provided with a large overpotential.…”

Section: Introductionmentioning

confidence: 99%

“…[15,16] The ideal catalyst should have lower activation energy for the reaction, which can generate larger current density at a small overpotential value and it should also have low cost and long durability. [4,17] For the past few years, nonnoble transition metal compounds have been proven to have preeminent ability for oxygen evolution electrocatalysis. [18][19][20][21][22] Prussian blue analogues (PBA) with tunable compositions, open framework, low cost and high specific surface areas have been extensively applied to energy storage and conversion field.…”

Section: Introductionmentioning

confidence: 99%

In Situ Growth of Hollow Trimetallic Nanocubes on Nickel Foam for the Electrocatalytic Oxygen Evolution Reaction

Deng

Zhang

et al. 2020

ChemElectroChem

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Nanomaterials derived from Prussian blue (PB) and its analogues (PBAs) possess uniform active centers and large surface areas, which can be applied in the field of electrocatalysis. In this study, nickel‐iron‐cobalt trimetallic PBAs, that is, NiFeCo(4 : 1)PBA nanocubes, were grown in situ on nickel foam (NF), which was subsequently calcined in air to obtain a composite electrode, NiO/FeOX/Co3O4@NF, with a loose porous hollow nanocube morphology. This structure remarkably enlarged the contact area between the electrolyte and the catalyst. In addition, a synergistic effect among these metallic oxides expedited oxygen evolution reaction (OER) kinetics. The Tafel slope (71.25 mV dec−1) toward OER of the constructed electrode is fairly small, much lower than that of our prepared bimetallic oxides@NF electrodes. The enduring stability is more than 22 h. This work indicates that, through morphology and composition control, the electrocatalytic performance of the designed electrode can be effectively improved.

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Metallic Ni3Mo3N Porous Microrods with Abundant Catalytic Sites as Efficient Electrocatalyst for Large Current Density and Superstability of Hydrogen Evolution Reaction and Water Splitting

Cited by 163 publications

References 42 publications

Design of Trimetallic NiMoFe Hollow Microspheres with Polyoxometalate‐Based Metal‐Organic Frameworks for Enhanced Oxygen Evolution Reaction

Design of Trimetallic NiMoFe Hollow Microspheres with Polyoxometalate‐Based Metal‐Organic Frameworks for Enhanced Oxygen Evolution Reaction

A Free-standing Nanoporous NiCoFeMoMn High Entropy Alloy as An Efficient Electrocatalyst Fast Driving Water Splittling

In Situ Growth of Hollow Trimetallic Nanocubes on Nickel Foam for the Electrocatalytic Oxygen Evolution Reaction

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