FeP<sub>3</sub> monolayer as a high-efficiency catalyst for hydrogen evolution reaction

Zheng, Shuzhan; Tong, Ying; Lin, Jianyan; Lou, Huan; Xu, Hongyan; Yang, Guochun

doi:10.1039/c9ta09985a

Cited by 44 publications

(26 citation statements)

References 76 publications

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“…The peak of c‐PANI and c‐P‐PANI (2θ = 26°) displays the accurate formation of graphite carbon. N, P‐CNL with different iron contents have obvious peaks corresponding to Fe 2 P at 40.5°, 44.2° and 47.2°, and Fe 2 P is considered as a potential high‐efficiency catalytic active sites in previous studies . Obvious diffraction peaks can be seen in the picture, which correspond to Fe 2 P (JCPDS.…”

Section: Resultsmentioning

confidence: 99%

High‐performance N, P‐CNL nanocomposites as catalyst for oxygen reduction reaction in fuel cell

et al. 2020

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Summary Transition metal and heteroatom codoped carbon materials have become the most promising materials to replace commercial platinum carbon (Pt / C) catalysts due to their low cost, high stability, and methanol resistance. In this work, iron‐nitrogen and phosphorus codoped carbon nanorod‐layer composites (N, P‐CNL) derived from phosphorus‐doped polyaniline (P‐PANI) by phytic acid (PA) and iron salt were successfully obtained after high‐temperature pyrolysis. As a result, the N, P‐CNL materials exhibited good electrocatalytic performance due to abundant active sites. The N, P‐CNL with 50% mass filling ratio of iron salt (named as N, P‐CNL‐1:1) displayed an enhanced limiting current density of −5.97 mA cm−2 at 1600 rpm and outstanding onset potential (−0.004 V) and oxygen reduction peak potential (−0.144 V). In general, this work can give insights into understanding the mechanism of codoped catalysts and synthesis the catalyst with excellent long‐term stability and resistance to methanol crossover and poisoning better than commercial Pt/C.

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Section: Resultsmentioning

confidence: 99%

High‐performance N, P‐CNL nanocomposites as catalyst for oxygen reduction reaction in fuel cell

et al. 2020

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“…29 On the other hand, HER activity of 2D FeP x (x = 1−4) depends on not only the P content but also the arrangement of P and Fe atoms. 30 Considering the diverse delectron configurations of TM atoms and the excellent activity of P atoms as active sites, there is reasonable expectance to find excellent HER catalysts in other 2D TMPs. Molybdenum (Mo) is a d-block element with an electronegativity of 2.16 on the Pauling scale, possessing rich and intriguing chemistry in compounds due to its various oxidation states from −II to VI.…”

Section: Introductionmentioning

confidence: 99%

“…Compared with the widely studied bulk TMPs, only 2D iron or tungsten phosphides were studied as HER catalysts, showing excellent properties . On the other hand, HER activity of 2D FeP x ( x = 1–4) depends on not only the P content but also the arrangement of P and Fe atoms . Considering the diverse d -electron configurations of TM atoms and the excellent activity of P atoms as active sites, there is reasonable expectance to find excellent HER catalysts in other 2D TMPs.…”

Section: Introductionmentioning

confidence: 99%

Janus Mo₂P₃ Monolayer as an Electrocatalyst for Hydrogen Evolution

Lou

Qiu

Yang

2021

ACS Appl. Mater. Interfaces

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The rational design of low-cost electrocatalysts with the desired performance is the core of the large-scale hydrogen production from water. Two-dimensional materials with high specific surface area and excellent electron properties are ideal candidates for electrocatalytic water splitting. Herein, we identify a hitherto unknown Mo2P3 monolayer with a Janus structure (i.e., out-of-plane asymmetry) through first-principle structure search calculations. Its inherent metallicity ensures good electrical conductivity. Notably, its catalytic activity is comparable to that of Pt and the density of active sites is up to 2.65 × 1015 site/cm2 owing to the Mo → P charge transfer enhancing the catalytic activity of P atoms and asymmetric structure exposing more active sites to the surface. The Mo2P3 monolayer can spontaneously produce hydrogen through the Volmer–Heyrovsky pathway. These excellent performances can be well maintained under strain. The coexistence of covalent and ionic bonds results in Mo2P3 having high stability. All these excellent properties make the Mo2P3 monolayer a promising candidate for electrocatalytic water splitting.

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“…Therefore, the exploration of robust and costeffective HER electrocatalysts composed of earth-abundant materials by a low-cost preparation method is necessary for the future of the hydrogen economy. 5−8 To resolve the abovementioned problems, non-noble active materials, such as sulfides, 5,6,9,10 phosphides, 11 selenides, 12−14 and oxides, 15 have been attracting immense interests due to their earth abundance and high catalytic performance. Among them, nickel sulfide appears to be a promising alternative candidate for the high-efficiency HER electrocatalysts due to low cost, high abundance, and excellent catalytic performance.…”

mentioning

confidence: 99%

“…To resolve the abovementioned problems, non-noble active materials, such as sulfides, ,,, phosphides, selenides, − and oxides, have been attracting immense interests due to their earth abundance and high catalytic performance. Among them, nickel sulfide appears to be a promising alternative candidate for the high-efficiency HER electrocatalysts due to low cost, high abundance, and excellent catalytic performance.…”

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confidence: 99%

Facile Electrodeposition of Amorphous Nickel/Nickel Sulfide Composite Films for High-Efficiency Hydrogen Evolution Reaction

Miao

Zheng

Sun

et al. 2021

ACS Appl. Energy Mater.

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Low-cost preparation of high-efficiency electrocatalysts is challenging the development of electrocatalytic water splitting. Here, amorphous nickel/nickel sulfide composite films with controlled Ni content are prepared directly on nickel foam by adopting the reductant during a facile electrodeposition route, functioning as active hydrogen evolution electrocatalysts. By adopting the reductant during the electrodeposition process, the content of Ni increases in the as-prepared nickel/nickel sulfide composite film, deducing from an energy-dispersive spectrometer. As a result of increased Ni to the optimal ratio, the amorphous nickel/nickel sulfide composite film exhibits remarkable electrocatalytic performance, benefiting possibly the modulated electronic structure, the reduced charge resistance, and the higher effectively electrochemical surface area. In a word, the optimal electrocatalyst presents an excellent catalytic stability and exhibits a small Tafel slope of 79.9 mV•dec −1 and low overpotentials of 43.8 and 134.5 mV to deliver current densities of 10 and 100 mA•cm −2 , respectively. The low-cost preparation of the high-efficiency amorphous nickel/nickel sulfide composite film here suggests that the adopted facile electrodeposition method may provide a feasible route for the fabrication of next-generation high-efficiency electrocatalysts for practical applications.

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FeP₃ monolayer as a high-efficiency catalyst for hydrogen evolution reaction

Abstract: An urgent and key problem in hydrogen evolution reaction (HER) is to prepare low-cost catalysts with activity comparable to that of platinum (Pt), an intrinsic large number of active sites, and high electrical conductivity.

Cited by 44 publications

References 76 publications

High‐performance N, P‐CNL nanocomposites as catalyst for oxygen reduction reaction in fuel cell

High‐performance N, P‐CNL nanocomposites as catalyst for oxygen reduction reaction in fuel cell

Janus Mo₂P₃ Monolayer as an Electrocatalyst for Hydrogen Evolution

Facile Electrodeposition of Amorphous Nickel/Nickel Sulfide Composite Films for High-Efficiency Hydrogen Evolution Reaction

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FeP3 monolayer as a high-efficiency catalyst for hydrogen evolution reaction

Abstract: An urgent and key problem in hydrogen evolution reaction (HER) is to prepare low-cost catalysts with activity comparable to that of platinum (Pt), an intrinsic large number of active sites, and high electrical conductivity.

Cited by 44 publications

References 76 publications

High‐performance N, P‐CNL nanocomposites as catalyst for oxygen reduction reaction in fuel cell

High‐performance N, P‐CNL nanocomposites as catalyst for oxygen reduction reaction in fuel cell

Janus Mo2P3 Monolayer as an Electrocatalyst for Hydrogen Evolution

Facile Electrodeposition of Amorphous Nickel/Nickel Sulfide Composite Films for High-Efficiency Hydrogen Evolution Reaction

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Product

Resources

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FeP₃ monolayer as a high-efficiency catalyst for hydrogen evolution reaction

Janus Mo₂P₃ Monolayer as an Electrocatalyst for Hydrogen Evolution