Facile electrospinning preparation of phosphorus and nitrogen dual-doped cobalt-based carbon nanofibers as bifunctional electrocatalyst

Wang, Zhuang; Zuo, Pengjian; Fan, Liquan; Han, Jia-Jun; Xiong, Yueping; Yin, Geping

doi:10.1016/j.jpowsour.2016.02.012

Cited by 68 publications

(25 citation statements)

References 61 publications

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“…However, most of these electrolysis catalysts are only capable in catalyzing single OER or HER reactions. It would be more attractive for a water splitting device by adopting a bifuncational, Janus catalysts due to the integration of only one rather than two catalysts and the facile setup system …”

Section: Introductionmentioning

confidence: 99%

Highly Efficient Bifunctional Catalyst of NiCo₂ O₄ @NiO@Ni Core/Shell Nanocone Array for Stable Overall Water Splitting

Wang

et al. 2017

Part. Part. Syst. Charact.

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Electrochemical splitting of water is an efficient way to produce clean energy for energy storage and conversion devices. Herein, 3D hierarchical NiCo2O4@NiO@Ni core/shell nanocone arrays (NAs) are reported on Ni foam for stable overall water splitting with high efficiency. The architecture and composition of the 3D catalysts are particularly tuned. The outstanding structural and component features of the as‐prepared 3D catalysts are characterized by the vertically grown NiCo2O4 nanocone/NiO nanosheet core/shell structure and Ni decorated 3D‐conductive networks, which largely prompt the catalytic performance. The hybrid catalyst with core/shell nanocone array structures exhibits superior bifuncational activities for oxygen evolution reaction (OER) and hydrogen evolution reaction (HER) with an overpotential of 240 and 120 mV at a current density of 10 mA cm−2, respectively. The Tafel slope of the optimal 3D electrode is about 43 and 58 mV dec−1 in an alkaline electrolyte for OER and HER, respectively. An alkaline electrolyzer constructed by two symmetric NiCo2O4@NiO@Ni electrodes delivers splendid activity toward overall water splitting with a current of 10 mA cm−2 at only ≈1.60 V and almost no deactivation after 10 h. This work provides a promising strategy to design ternary core/shell electrodes as high performance Janus catalysts for overall water splitting.

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Section: Introductionmentioning

confidence: 99%

Highly Efficient Bifunctional Catalyst of NiCo₂ O₄ @NiO@Ni Core/Shell Nanocone Array for Stable Overall Water Splitting

Wang

et al. 2017

Part. Part. Syst. Charact.

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“…www.advancedsciencenews.com be further enhanced by modifying with another nonmetallic elements. [186][187][188][189] This isolated metal-N x sites in various carbon-supported single atom model catalysts are fully investigated for a great deal of crucial chemical reactions, showing remarkable catalytic performances. [190,191] It is well known that SACs achieve the maximal atom utilization and provide ideal platform for studies of structure-performance relationship at atomic level.…”

Section: Transition Metal-n-ecnfs Compositesmentioning

confidence: 99%

Electrospun Inorganic Nanofibers for Oxygen Electrocatalysis: Design, Fabrication, and Progress

Lei

Wang

Peng

et al. 2020

Advanced Energy Materials

120

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“…The oxygen electrode of choice should possess high catalytic activity, long-term durability, high electronic conductivity as well as being cost efficient. Currently, the oxygen electrode is only limited to using noble metal catalyst, which is Pt in its reduced form (Wang et al 2016). The performance of various bifunctional electrodes is summarized in Table 4.…”

Section: Urfc Bifunctional Oxygen Electrode (Boe)mentioning

confidence: 99%

Recent Perspectives and Crucial Challenges on Unitized Regenerative Fuel Cell (URFC)

Hasran¹,

Pauzi²,

Basri³

et al. 2018

JKUKM

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Renewable sources of energy are becoming increasingly popular in recent years. The idea of using alternative energy that utilizes renewable sources is to slowly replace our dependence on fossil fuels. Conventional fossil fuels are not viable due to the fact that they are predominantly unsustainable over the long run. Furthermore, pollution will be reduced through the use of cleaner and more environmentally friendly renewable energy. Polymer electrolyte membrane fuel cell (PEMFC), which utilizes hydrogen as fuel, has a high potential as an alternative power generator. The unitized regenerative fuel cell (URFC) is a type of PEMFC that can perform both in charge mode (as a fuel cell) and discharge mode (as an electrolyzer). This review looks into the recent researches on the structure and different components of the URFC. In particular, emphasis is placed on bifunctional electrodes. Recent development in URFC research has produced a more stable bifunctional electrode with improved energy efficiency and overall stability and durability. Various works have been carried out to replace Pt as the electrocatalyst, including the use of graphene as a low cost non-metal graphene-based electrocatalyst. Electrocatalyst support also plays an important role in increasing conductivity while reducing the catalyst resistance to corrosion. The technological challenges and limitations of the URFC system are also discussed in this review.

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Facile electrospinning preparation of phosphorus and nitrogen dual-doped cobalt-based carbon nanofibers as bifunctional electrocatalyst

Cited by 68 publications

References 61 publications

Highly Efficient Bifunctional Catalyst of NiCo₂ O₄ @NiO@Ni Core/Shell Nanocone Array for Stable Overall Water Splitting

Highly Efficient Bifunctional Catalyst of NiCo₂ O₄ @NiO@Ni Core/Shell Nanocone Array for Stable Overall Water Splitting

Electrospun Inorganic Nanofibers for Oxygen Electrocatalysis: Design, Fabrication, and Progress

Recent Perspectives and Crucial Challenges on Unitized Regenerative Fuel Cell (URFC)

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Facile electrospinning preparation of phosphorus and nitrogen dual-doped cobalt-based carbon nanofibers as bifunctional electrocatalyst

Cited by 68 publications

References 61 publications

Highly Efficient Bifunctional Catalyst of NiCo2 O4 @NiO@Ni Core/Shell Nanocone Array for Stable Overall Water Splitting

Highly Efficient Bifunctional Catalyst of NiCo2 O4 @NiO@Ni Core/Shell Nanocone Array for Stable Overall Water Splitting

Electrospun Inorganic Nanofibers for Oxygen Electrocatalysis: Design, Fabrication, and Progress

Recent Perspectives and Crucial Challenges on Unitized Regenerative Fuel Cell (URFC)

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Highly Efficient Bifunctional Catalyst of NiCo₂ O₄ @NiO@Ni Core/Shell Nanocone Array for Stable Overall Water Splitting

Highly Efficient Bifunctional Catalyst of NiCo₂ O₄ @NiO@Ni Core/Shell Nanocone Array for Stable Overall Water Splitting