Pressure-driven catalyst synthesis of Co-doped Fe C@Carbon nano-onions for efficient oxygen evolution reaction

Xü, Shishuai; Wang, Mingzhi; Saranya, Govindarajan; Chen, Ning; Zhang, Lili; He, Yan; Wu, Lailei; Gong, Yutong; Yao, Zhiqiang; Wang, Gongkai; Wang, Zhibin; Zhao, Shijing; Tang, Hu; Chen, Mingyang; Gou, Huiyang

doi:10.1016/j.apcatb.2019.118385

Cited by 56 publications

(28 citation statements)

References 60 publications

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“…Open Fe-doped Cobalt nitride 202 200 mV @ 10 mA cm -2 42.44 10 h @ 200 mV 1 M KOH Mn0.15 Co0.85N 203 265 mV @ 10 mA cm -2 48 30 h @ 280 mV 1 M KOH Mn0.15 Co0.85N 203 285 mV @ 10 mA cm -2 64 30 h @ 285 mV 1 M phosphatebuffered saline P,F-Ni1.5Co1.5N 204 350 mV @ 100 mA cm -2 66.1 -1 M KOH P-NiMo4N5@Ni 205 435 mV @ 100 mA cm -2 65 24 h @ 50 mV 1 M KOH Metal carbides B, N:Mo2C@BCN 206 360 mV @ 100 mA cm -2 61 20 h @ 350 mV 1 M KOH Co3C-NB 207 354 mV @ 10 mA cm -2 90 24 h @ 50 mA cm -2 0.1 M KOH Co-doped β−Mo2C 208 262.2 mV @ 10 mA cm -2 28.8 16 h @ 1.49 V vs RHE 1 M KOH Co-doped Ni3C/Ni@C 209 325 mV @ 10 mA cm -2 67.76 100000 s @ 10 mA cm -2 1 M KOH FCC@CNOs/NF 210 271 mV @ 10 mA cm -2 48.9 40 h @ 100 mA cm -2 1 M KOH Fe-doped Ni3C 211 275 mV @ 10 mA cm -2 62 10 h @ 1.5 V vs RHE 1 M KOH V0.28Co2.72C/CNFs 212 210 mV @ 10 mA cm -2 147 10 h @ 1.4 V vs RHE 1 M KOH Mn doping of cobalt phosphide and nickel phosphide improves their catalytic activity for electrochemical water oxidation. In cobalt phosphide, Mn doping enhances the electrochemical surface area by increasing the number of exposed active sites.…”

Section: Journal Of Materials Chemistry a Accepted Manuscriptmentioning

confidence: 99%

“…Specifically, V 0.28 Co 2.72 C shows superior activity by forming local negative Co centers through the intake of electrons from vanadium dopants. Xu et al doped TMs such as Mn, Co, and Ni, into the matrix of Fe 3 C and evaluated its OER performance 210. They noticed that Co-doped iron carbide had enhanced activity, and the Gibbs free energy was estimated in the different steps in the…”

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confidence: 99%

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Tuning the intrinsic catalytic activities of oxygen-evolution catalysts by doping: a comprehensive review

2021

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Section: Journal Of Materials Chemistry a Accepted Manuscriptmentioning

confidence: 99%

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confidence: 99%

Tuning the intrinsic catalytic activities of oxygen-evolution catalysts by doping: a comprehensive review

2021

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“…84 Gou et al reported the preparation of Co-doped Fe 3 C@carbon nano-onions (FCC@CNOs) via a high-pressure annealing method. 86 The high resolution TEM images showed the lattice fringes of 0.24 nm, which are indexed to the (210) crystal plane of Fe 3 C. The OER η 10 of FCC@CNOs was 271 mV, which is much better than that of the benchmark RuO 2 . DFT results showed that Co tends to form weaker *O adsorption than Fe do.…”

Section: Metal Carbidesmentioning

confidence: 92%

Recent advances in non-precious group metal-based catalysts for water electrolysis and beyond

Kim

Joo

et al. 2022

J. Mater. Chem. A

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“…[6][7][8] Besides, the doped hetero-atoms could serve as active sites, inducing a giant advance in the catalytic activity enhancement. [9][10][11] Up to now, there are many researchers reported doping transition metals such as Fe, [12,13] Co, [14,15] Ni, [16,17] is reported to serve as OER catalysts, shows an overpotential of 410 mV at a current density of 3 mA cm −2 , [36] which is still far from a satisfactory electrocatalyst. Therefore, it is significant to design and utilize novel as well as earth-abundant α-ZrP with high electrochemical activity for the OER rationally.…”

Section: Introductionmentioning

confidence: 99%

Amorphous Doping Promotes Utilization of Fe‐Doped Amorphous Zr(HPO₄)₂ for Superb Water Oxidation Electrocatalysis

Wang

Tan

et al. 2022

Adv Materials Inter

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Mn, [18] which can play an indispensable role in tuning the electrocatalytic activity. It is well known that the electrochemical reaction mainly occurs on the surface of the catalyst. [19] Therefore, realizing effective surface doping can improve the utilization of dopant atoms to obtain superb electrocatalytic performance. Nevertheless, most of the doping occurs inside the host, so achieving effective surface doping is an enormous challenge. [20] In recent years, amorphous materials have been widely used in electrocatalysis due to their short-range order and long-range disorder nature. More importantly, the composition of amorphous nanomaterials is more flexible and can be adjusted in a wider range to obtain suitable catalytic active centers. [21,22] Meanwhile, the surface of the amorphous nanomaterials possesses a large scale of coordinated unsaturated sites with high surface energy, strong activation ability as well as highly active center density. [23,24] Thus, the above unique structure merits may accommodate doping ions with different sizes and valence, inducing more exposure of dopant to form steady state and achieving high dopant atom utilization. The above discussion motivates us to look into amorphous doping, and further fabricate a suitable amorphous catalyst model to investigate exposed dopant as an active site for enhanced electrocatalytic performance.In terms of electrocatalysis, the most promising application is electrocatalytic water splitting which can solve environmental pollution, especially the depletion of fossil energy. [25,26] And the key to realize the large-scale application of electrocatalysis water splitting in the market is to reduce the overpotential of oxygen evolution reaction (OER). For that OER is hindered by the slow four-electron transfer process and has become a bottleneck, hampering the development of green electrolyzed water technology. [27,28] Traditionally, Ru/Ir oxides belong to the most stateof-the-art electrocatalysts for OER in electrolytes with different pH. [29,30] The shortage of these noble metal catalysts and high expense stint their large-scale practical utilization. [31] Given these, transition metal phosphates have gained popular attention on account of their noteworthy catalytic activity, especially the abundant resource, opening new avenues for hopeful development of other phosphate electrocatalysts. [32][33][34] Despite this, phosphate zirconium phosphates (α-ZrP), as a typical phosphate, is rarely used in the field of electrolyzed water because of the inherent relative inert activity and poor conductivity. [35] For example, metal-modified ZrP nanoparticles electrocatalyst Doping hetero-atoms on the surface of host materials, namely effective doping with high atom utilization, is a promising strategy to optimize the activity of electrocatalysts for water electrolysis, especially for oxygen evolution reaction (OER). Herein, high utilization of doped atoms is successfully achieved in Fe-doped 2D amorphous Zr(HPO 4 ) 2 nanosheets (amorphous Fe-ZrP). Due to the u...

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Pressure-driven catalyst synthesis of Co-doped Fe C@Carbon nano-onions for efficient oxygen evolution reaction

Cited by 56 publications

References 60 publications

Tuning the intrinsic catalytic activities of oxygen-evolution catalysts by doping: a comprehensive review

Tuning the intrinsic catalytic activities of oxygen-evolution catalysts by doping: a comprehensive review

Recent advances in non-precious group metal-based catalysts for water electrolysis and beyond

Amorphous Doping Promotes Utilization of Fe‐Doped Amorphous Zr(HPO₄)₂ for Superb Water Oxidation Electrocatalysis

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Pressure-driven catalyst synthesis of Co-doped Fe C@Carbon nano-onions for efficient oxygen evolution reaction

Cited by 56 publications

References 60 publications

Tuning the intrinsic catalytic activities of oxygen-evolution catalysts by doping: a comprehensive review

Tuning the intrinsic catalytic activities of oxygen-evolution catalysts by doping: a comprehensive review

Recent advances in non-precious group metal-based catalysts for water electrolysis and beyond

Amorphous Doping Promotes Utilization of Fe‐Doped Amorphous Zr(HPO4)2 for Superb Water Oxidation Electrocatalysis

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Amorphous Doping Promotes Utilization of Fe‐Doped Amorphous Zr(HPO₄)₂ for Superb Water Oxidation Electrocatalysis