Nickel cobalt phosphide with three-dimensional nanostructure as a highly efficient electrocatalyst for hydrogen evolution reaction in both acidic and alkaline electrolytes

Ma, Bo; Yang, Zhengchun; Chen, Yantao; Yuan, Zhihao

doi:10.1007/s12274-018-2226-2

Cited by 198 publications

(92 citation statements)

References 64 publications

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“…Moreover, the heterogeneous catalysts (e. g. Ni 2 P/Fe 2 P, Ni 2 P/CoP, Ni 2 P/Cu 3 P, Ni 2 P/NiP 2 , Ni 2 P/Ni 5 P 4 , Ni 2 P/Ni 2 S) with multi‐components have exhibited synergistic effects on the improvement in HER performances compared with their single‐component counterparts. In spite of tremendous efforts have been made to further enhance the HER properties of nickel phosphides, few of them are comparable to the Pt/C catalyst in a wide pH value ( from 0 to 14) . With respect to the excellent HER activity of Ni 2 P, it should be pointed out that this catalyst has also been proverbially explored to be an active catalyst for oxygen evolution reaction, lithium and sodium storage, supercapacitor, hydrogenation, photocatalytic hydrogen evolution, etc.…”

Section: Introductionmentioning

confidence: 99%

Fabrication of Porous Configurated Ni₂P/Ni Foam Catalyst and its Boosted Properties for pH‐universal Hydrogen Evolution Reaction and Efficient Nitrate Reduction

et al. 2020

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Nickel phosphide (Ni 2 P) has been widely explored toward hydrogen evolution reaction (HER) for desirable durability and high performance. Tuning the electronic structures and morphologies of Ni 2 P plays a pivotal role in the improvement of HER performance. In this work, three Ni 2 P catalysts were fabricated by different strategies and their HER properties were compared. It was found that the bicontinuous porous structured Ni 2 P on Ni foam (Ni 2 P /NFÀ EHP) prepared using coupled electroless nickel-phosphorus (NiÀ P) plating, hydrothermal synthesis and low temperature phosphorization techniques, exhibits the best catalytic activity and a wide pH adaptability. The overpotential at 10 mA cm À 2 and Tafel slope are 78 mV and 33 mV dec À 1 in 0.5 M H 2 SO 4 , those in 1 M PBS are 125 mV and 93 mV dec À 1 , and 101 mV and 76 mV dec À 1 in 1 M KOH. Additionally, the Ni 2 P/NFÀ EHP-catalyzed HER process is also applicable for nitrate reduction with a remarkable removal efficiency of 92.6 %. This catalyst also exhibits a desirable durability both in HER and nitrate reduction. This work offers an efficient strategy to exploit compatible pH-universal HER catalysts, explores the engineering application of HER process in nitrate reduction.

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Section: Introductionmentioning

confidence: 99%

Fabrication of Porous Configurated Ni₂P/Ni Foam Catalyst and its Boosted Properties for pH‐universal Hydrogen Evolution Reaction and Efficient Nitrate Reduction

et al. 2020

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“…It provides a large number of active sites for electrochemical reaction to promote electrocatalytic activity [33]. CoP not only solves the problems of insufficient reserves, high price, and poor stability of Ru and Ir electrocatalysts, but also has good catalytic performance for OER [34,35]. In addition, CoP has neutral alkali resistance and is advantageous for electrochemical stability.…”

Section: Introductionmentioning

confidence: 99%

Co/CoP Nanoparticles Encapsulated Within N, P-Doped Carbon Nanotubes on Nanoporous Metal-Organic Framework Nanosheets for Oxygen Reduction and Oxygen Evolution Reactions

Yang

Ren

et al. 2020

Nanoscale Res Lett

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Herein, Co/CoP nanoparticles encapsulated with N, P-doped carbon nanotubes derived from the atomic layer deposited hexagonal metal-organic frameworks (MOFs) are obtained by calcinations and subsequent phosphating and are employed as electrocatalyst. The electrocatalytic performance evaluations show that the as-prepared electrocatalyst exhibits an overpotential of 342 mV at current density of 10 mA cm −2 and the Tafel slope of 74 mV dec −1 for oxygen evolution reaction (OER), which is superior to the most advanced ruthenium oxide electrocatalyst. The electrocatalyst also shows better stability than the benchmark RuO 2. After 9 h, the current density is only decreased by 10%, which is far less than the loss of RuO 2. Moreover, its onset potential for oxygen reduction reaction (ORR) is 0.93 V and follows the ideal 4-electron approach. After the stability test, the current density of the electrocatalyst retains 94% of the initial value, which is better than Pt/C. The above results indicate that the electrocatalyst has bifunctional activity and excellent stability both for OER and ORR. It is believed that this strategy provides guidance for the synthesis of cobalt phosphide/carbon-based electrocatalysts.

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“…[38] The sluggish HER kinetics in alkaline electrolytes often impedes the practical application of electrocatalysts. [39] In Figure 4d, the Tafel slopes of 84 mV dec À 1 is observed for commercial Pt/C in 1 M KOH, and Tafel slopes for Co@C, Co-Mo@C, Co-P@C, and Co-Mo-P@C are 104, 116, 133, and 131 mV dec À 1 , respectively. The Tafel slope of Co-Mo-P@C indicates that the HER processes in 1 M KOH follow a Volmer-Heyrovsky mechanism: H 2 O + e À !H ads + OH À , H 2 O + e À + H ads !H 2 + OH À , which demonstrates that the Volmer reaction is the dominated rate-determining step.…”

Section: Resultsmentioning

confidence: 89%

Cobalt‐Molybdenum Bimetal Phosphides Encapsulated in Carbon as Efficient and Durable Electrocatalyst for Hydrogen Evolution

Shi

Hou

et al. 2020

ChemistrySelect

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Hydrogen evolution reaction (HER) from water electrolysis is an attractive technique developed in recent years for clean renewable energy. It is critical to develop a low‐cost, high activity and long‐time stability HER catalyst. In this work, a novel catalyst, Cobalt‐Molybdenum bimetal phosphides encapsulated in carbon matrix (Co‐Mo‐P@C), is synthesized using MOFs‐templated strategy by chemical vapor deposition (CVD) and phosphidation. The Co‐Mo‐P@C catalyst exhibits excellent catalytic performances with low overpotentials of 148 and 159 mV to reach current densities of 10 mA cm−2 for HER in both acidic and alkaline media, respectively, as well as long‐time durability over 20 h. This work introduces a new method for an efficient and stable HER catalyst and it may be extended to design other encapsulated bimetal nitrides, sulfides, and selenides for more applications.

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Nickel cobalt phosphide with three-dimensional nanostructure as a highly efficient electrocatalyst for hydrogen evolution reaction in both acidic and alkaline electrolytes

Cited by 198 publications

References 64 publications

Fabrication of Porous Configurated Ni₂P/Ni Foam Catalyst and its Boosted Properties for pH‐universal Hydrogen Evolution Reaction and Efficient Nitrate Reduction

Fabrication of Porous Configurated Ni₂P/Ni Foam Catalyst and its Boosted Properties for pH‐universal Hydrogen Evolution Reaction and Efficient Nitrate Reduction

Co/CoP Nanoparticles Encapsulated Within N, P-Doped Carbon Nanotubes on Nanoporous Metal-Organic Framework Nanosheets for Oxygen Reduction and Oxygen Evolution Reactions

Cobalt‐Molybdenum Bimetal Phosphides Encapsulated in Carbon as Efficient and Durable Electrocatalyst for Hydrogen Evolution

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Nickel cobalt phosphide with three-dimensional nanostructure as a highly efficient electrocatalyst for hydrogen evolution reaction in both acidic and alkaline electrolytes

Cited by 198 publications

References 64 publications

Fabrication of Porous Configurated Ni2P/Ni Foam Catalyst and its Boosted Properties for pH‐universal Hydrogen Evolution Reaction and Efficient Nitrate Reduction

Fabrication of Porous Configurated Ni2P/Ni Foam Catalyst and its Boosted Properties for pH‐universal Hydrogen Evolution Reaction and Efficient Nitrate Reduction

Co/CoP Nanoparticles Encapsulated Within N, P-Doped Carbon Nanotubes on Nanoporous Metal-Organic Framework Nanosheets for Oxygen Reduction and Oxygen Evolution Reactions

Cobalt‐Molybdenum Bimetal Phosphides Encapsulated in Carbon as Efficient and Durable Electrocatalyst for Hydrogen Evolution

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Fabrication of Porous Configurated Ni₂P/Ni Foam Catalyst and its Boosted Properties for pH‐universal Hydrogen Evolution Reaction and Efficient Nitrate Reduction

Fabrication of Porous Configurated Ni₂P/Ni Foam Catalyst and its Boosted Properties for pH‐universal Hydrogen Evolution Reaction and Efficient Nitrate Reduction