Ultrathin hollow hemisphere-carbon-anchored Ni3FeN nanoparticles as nanoreactors facilitating the formation of NiCx with long-term durability for the oxygen evolution reaction

Yu, Liang; Zhang, Gaowei; Chen, Huanhui; Ju, Zeng; Liu, Ya; Yang, Qixin; Zhong, Liubiao; Qiu, Yejun

doi:10.1039/d1ta10670h

Cited by 14 publications

(4 citation statements)

References 62 publications

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“…The above results indicate that BN C,O‑x obtained by appropriate C and O doping has a high specific surface area and abundant surface functional groups. These characteristics make it an appropriate support for the adsorption of metal precursor ions and the anchoring of active metal nanoparticles. − …”

Section: Resultsmentioning

confidence: 99%

Pd Nanoparticles Anchored on Amine-Functionalized Boron Nitride Co-Doped with Carbon and Oxygen as Catalysts for Formic Acid Dehydrogenation

Gong,

Lin,

et al. 2024

ACS Appl. Nano Mater.

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Formic acid (FA) has garnered considerable interest as a sustainable energy source because of its high hydrogen storage capability and convenient transportability. However, efficient dehydrogenation of FA requires highly selective and efficient catalysts. This study explores the potential of C and O codoped boron nitride (BN C,O ) as a support for Pd nanoparticles in FA dehydrogenation. The BN C,O support has been synthesized through high-temperature pyrolysis and subsequently functionalized with −NH 2 groups to enhance the dispersion and anchoring of ultrafine Pd nanoparticles (∼2.1 nm). In comparison to the unmodified catalyst, the resulting Pd/BN C,O -A catalyst demonstrates a significant enhancement in catalytic activity for FA dehydrogenation, achieving an initial turnover frequency (TOF) of 522.0 h −1 at 298 K and 1560.9 h −1 at 338 K with nearly 100% hydrogen selectivity. Characterization techniques reveal that the incorporation of C and O heteroatoms and −NH 2 groups into the BN C,O support facilitates the formation of small and welldispersed Pd nanoparticles while also forming a strong metal−support interaction. The −NH 2 groups further promote FA dehydrogenation by acting as proton scavengers. This study highlights the promising potential of C and O co-doped, −NH 2 functionalized BN C,O as a support for Pd-based catalysts for efficient FA dehydrogenation.

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Section: Resultsmentioning

confidence: 99%

Pd Nanoparticles Anchored on Amine-Functionalized Boron Nitride Co-Doped with Carbon and Oxygen as Catalysts for Formic Acid Dehydrogenation

Gong,

Lin,

et al. 2024

ACS Appl. Nano Mater.

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“…To further explore the mechanism of the CaC 2 -based mechanochemical reaction, the ball milling mixture of CaC 2 and NiCl 2 before washing was studied. According to the XRD analysis of the ball milling powder (Figure S4), a mixture of NiO, Ni, and NiC x was observed, evidenced by the typical diffraction peaks of Ni (PDF #04-0850), NiO (PDF #47-1049), as well as the peaks at 29.4 and 36.2°, matching the (111) and (114) crystal planes of NiC x (PDF #45-0979) . Based on these results, a possible reaction mechanism was proposed.…”

Section: Resultsmentioning

confidence: 99%

Calcination-Free Synthesis of Porous Metal Oxides/Carbon from Calcium Carbide by Ball Milling

Duan

Wang

Zhang

et al. 2023

Ind. Eng. Chem. Res.

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Calcium carbide is a key intermediate in the chemical industry, such as cyanamide industry (>2 Mton year–1 for CaCN2), and in the manufacture of vinyl chloride (∼13 Mton year–1). The environment-friendly utilization of reactive CaC2 is of great interest. Herein, by ball milling CaC2 and equimolar metal chlorides, porous carbon-supported transition-metal oxides were obtained without calcination treatment. This mechanochemical synthesis route was based on the CaC2 replacement reaction and the Cl–-triggered free-radical reaction. Different metal oxides including Mn3O4/C, Fe3O4/C, NiO x /C, Cu2O/C, ZnO/C, ZrO2/C, Nb2O5/C, CeO2/C, HfO2/C, and WO3/C showed high surface areas up to 232 m2g–1. Moreover, the as-made metal oxides displayed good performance in heterogeneous catalysis. NiO x /C promoted selective nitrobenzene hydrogenation with high conversion and selectivity (>99% Conv., >99% Select.), while CuMnCeO x /C achieved 90% CO conversion at 120 °C in CO oxidation.

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“…These materials predominantly manifest as metal (hydrogen) oxides (e.g., Ni-Fe-LDH), nitrides (e.g., Ni3FeN), phosphides (e.g., NiP), selenides (e.g., NiSe), etc. [19][20][21][22][23]. The majority exhibit superior OER catalytic activity compared to noble metal catalysts [24,25].…”

Section: Introductionmentioning

confidence: 99%

One-Step Synthesis of High-Efficiency Oxygen Evolution Reaction Catalyst FeSx(Y/MB) with High Temperature Resistance and Strong Alkali

Wang,

Feng,

Zhao

et al. 2024

Catalysts

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Given the energy crisis and escalating environmental pollution, the imperative for developing clean new energy is evident. Hydrogen has garnered significant attention owing to its clean properties, high energy density, and ease of storage and transportation. This study synthesized four types of catalysts—FeS(DI/MB), FeS(ET/MB), Fe(DI/MB), and Fe(ET/MB)—using two distinct solution systems: DI/MB and ET/MB. The FeS(DI/MB) catalyst, synthesized using the layered solution system (DI/MB), demonstrates a uniformly distributed and dense nanosheet structure, exhibiting excellent resistance to strong bases and superior catalytic properties. The FeS(DI/MB) electrode showed OER overpotentials of 460 mV and 318 mV in 1 M and 6 M, respectively, at current densities of up to 500 mA cm−2. Under industrial electrolysis test conditions, the FeS(DI/MB) electrode required only 262 mV to achieve a current density of 500 mA cm−2, operating in a high-temperature, strong alkaline environment of 6 M at 60 °C. Furthermore, the FeS(DI/MB) electrode exhibited excellent OER catalytic activity and stability, as evidenced by a 60 h stability test These findings provide valuable insights into the preparation of iron nickel sulfide-based catalysts, and further in-depth and comprehensive exploration is anticipated to yield the excellent catalytic performance of these catalysts in the realm of electrolytic water hydrogen production.

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Ultrathin hollow hemisphere-carbon-anchored Ni₃FeN nanoparticles as nanoreactors facilitating the formation of NiC_x with long-term durability for the oxygen evolution reaction

Abstract: Developing highly active, long-term durable and low-cost oxygen evolution reaction (OER) electrocatalysts is crucial toward practical implementation of water splitting. Here, a unique category of OER catalysts is fabricated with...

Cited by 14 publications

References 62 publications

Pd Nanoparticles Anchored on Amine-Functionalized Boron Nitride Co-Doped with Carbon and Oxygen as Catalysts for Formic Acid Dehydrogenation

Pd Nanoparticles Anchored on Amine-Functionalized Boron Nitride Co-Doped with Carbon and Oxygen as Catalysts for Formic Acid Dehydrogenation

Calcination-Free Synthesis of Porous Metal Oxides/Carbon from Calcium Carbide by Ball Milling

One-Step Synthesis of High-Efficiency Oxygen Evolution Reaction Catalyst FeSx(Y/MB) with High Temperature Resistance and Strong Alkali

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