Ru decorated with NiCoP: an efficient and durable hydrogen evolution reaction electrocatalyst in both acidic and alkaline conditions

Liu, Suli; Liu, Qinpu; Lv, Yuzhen; Chen, Biyao; Zhou, Quan; Wang, Lei; Zheng, Qiu-Hui; Che, Chenjing; Chen, Changyun

doi:10.1039/c7cc08340h

Cited by 99 publications

(34 citation statements)

References 33 publications

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“…Although the catalytic overpotential to achieve a current density of 10 mA cm −2 for Ru 0.33 Se @ TNA is still much higher than that of 20% Pt/C catalyst, the current density of Ru 0.33 Se @ TNA exceeds that of 20% Pt/C catalyst when the overpotential goes beyond 160 mV, suggesting the superior catalytic performance at high overpotentials, or at overpotentials that generate a large amount of H 2 . It is worthy to be noted that the overpotential to achieve a current density of 10 mA cm −2 for Ru 0.33 Se @ TNA is comparable to most of the reported Ru‐based HER catalysts in basic electrolyte (Table S1, Supporting Information) . This value is also lower than those of transition metal selenides measured in 1 m KOH electrolyte (Table S2, Supporting Information).…”

Section: Resultssupporting

confidence: 59%

Crystalline Ru_0.33Se Nanoparticles‐Decorated TiO₂ Nanotube Arrays for Enhanced Hydrogen Evolution Reaction

Wang

Chen

et al. 2018

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Nowadays, the state-of-the-art electrocatalysts for hydrogen evolution reaction (HER) are platinum group metals. Nonetheless, Pt-based catalysts show decreased HER activity in alkaline media compared with that in acidic media due to the sluggish dissociation process of H O on the surface of Pt. With a cost 1/25 that of Pt, Ru demonstrates a favorable dissociation kinetics of absorbed H O. Herein, crystalline Ru Se nanoparticles are decorated onto TiO nanotube arrays (TNAs) to fabricate Ru Se @ TNA hybrid for HER. Owing to the large-specific surface area, Ru Se nanoparticles are freely distributed and the particle aggregation is eliminated, providing more active sites. The contracted electron transport pathway rendered by TiO nanotubes and the synergistic effect at the interface significantly improve the charge transfer efficiency in the hybrid catalyst. Compared with Ru Se nanoparticles deposited directly on the Ti foil (Ru Se/Ti) or carbon cloth (Ru Se/CC), Ru Se @ TNA shows an enhanced catalytic activity with an overpotential of 57 mV to afford a current density of 10 mA cm , a Tafel slope of 50.0 mV dec . Furthermore, the hybrid catalyst also exhibits an outstanding catalytic stability. The strategy here opens up a new synthetic avenue to the design of highly efficient hybrid electrocatalysts for hydrogen production.

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Section: Resultssupporting

confidence: 59%

Crystalline Ru_0.33Se Nanoparticles‐Decorated TiO₂ Nanotube Arrays for Enhanced Hydrogen Evolution Reaction

Wang

Chen

et al. 2018

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“…[20] A peak at 461.4 eV is attributed to Ru(0) or Ti 2+ . [20,26] To gain insight into the dispersion of Ru species on Ru SA -N-S-Ti 3 C 2 T x , we investigated the chemical state and coordination environment of the Ru SA using X-ray absorption fine structure spectroscopy (XAFS). The Fourier transform-X-ray absorption fine structure (FT-EXAFS) spectrum of Ru SA -N-S-Ti 3 C 2 T x exhibits a superimposed peak at 1.67 Å, which can be ascribed to both RuN(O) and RuS scattering pairs (Figure 2d).…”

Section: A Titanium Carbide (Ti 3 C 2 T X ) Mxene Is Employed As An Ementioning

confidence: 99%

Heteroatom‐Mediated Interactions between Ruthenium Single Atoms and an MXene Support for Efficient Hydrogen Evolution

et al. 2019

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A titanium carbide (Ti3C2Tx) MXene is employed as an efficient solid support to host a nitrogen (N) and sulfur (S) coordinated ruthenium single atom (RuSA) catalyst, which displays superior activity toward the hydrogen evolution reaction (HER). X‐ray absorption fine structure spectroscopy and aberration corrected scanning transmission electron microscopy reveal the atomic dispersion of Ru on the Ti3C2Tx MXene support and the successful coordination of RuSA with the N and S species on the Ti3C2Tx MXene. The resultant RuSA‐N‐S‐Ti3C2Tx catalyst exhibits a low overpotential of 76 mV to achieve the current density of 10 mA cm−2. Furthermore, it is shown that integrating the RuSA‐N‐S‐Ti3C2Tx catalyst on n+np+‐Si photocathode enables photoelectrochemical hydrogen production with exceptionally high photocurrent density of 37.6 mA cm−2 that is higher than the reported precious Pt and other noble metals catalysts coupled to Si photocathodes. Density functional theory calculations suggest that RuSA coordinated with N and S sites on the Ti3C2Tx MXene support is the origin of this enhanced HER activity. This work would extend the possibility of using the MXene family as a solid support for the rational design of various single atom catalysts.

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“…to ruthenium;t hus improving the HER efficiency at acidic pH to reach comparable activity and higher long-term stability than that of Pt/C ( Table 3, entry 24). [101] Remarkably,R uN Ps have also been combined/alloyed with Co, [106,107] NiCo, [108] Ni, [109] and NiCoMo [110] nanostructures to form heterometallic electrocatalysts that show synergistic effects in the HER similart ot hose mentioned above for metal/ semimetal-based supports. Thus, fore xample, Su and co-workers reportedt he doping of Co-basedn anocubes with 3.58 wt %R u, followedb ya nnealing at hight emperature (600 8C), which afforded RuCo nanoalloys 30 nm in size encapsulatedinto N-doped graphene shells(RuCo@NC) with high activity (h 0 % 0mV, h 10 = 28 mV,T afel slope = 31 mV dec À1 , j j 0 j = 3.31 mA cm À2 ;T able 4, entry 20) and stability (increasei nh 10 of only 4mVa fter 10 000 cycles).…”

Section: Supported Electrochemical Systems On Metal/semimetal-based Mmentioning

confidence: 99%

Ruthenium Nanoparticles for Catalytic Water Splitting

et al. 2019

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Both global warming and limited fossil resources make the transition from fossil to solar fuels an urgent matter. In this regard, the splitting of water activated by sunlight is a sustainable and carbon‐free new energy conversion scheme able to produce efficient technological devices. The availability of appropriate catalysts is essential for the proper kinetics of the two key processes involved, namely, the oxygen evolution reaction (OER) and the hydrogen evolution reaction (HER). During the last decade, ruthenium nanoparticle derivatives have emerged as true potential substitutes for the state‐of‐the‐art platinum and iridium oxide species for the HER and OER, respectively. Thus, after a summary of the most common methods for catalyst benchmarking, this review covers the most significant developments of ruthenium‐based nanoparticles used as catalysts for the water‐splitting process. Furthermore, the key factors that govern the catalytic performance of these nanocatalysts are discussed in view of future research directions.

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Ru decorated with NiCoP: an efficient and durable hydrogen evolution reaction electrocatalyst in both acidic and alkaline conditions

Cited by 99 publications

References 33 publications

Crystalline Ru_0.33Se Nanoparticles‐Decorated TiO₂ Nanotube Arrays for Enhanced Hydrogen Evolution Reaction

Crystalline Ru_0.33Se Nanoparticles‐Decorated TiO₂ Nanotube Arrays for Enhanced Hydrogen Evolution Reaction

Heteroatom‐Mediated Interactions between Ruthenium Single Atoms and an MXene Support for Efficient Hydrogen Evolution

Ruthenium Nanoparticles for Catalytic Water Splitting

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Ru decorated with NiCoP: an efficient and durable hydrogen evolution reaction electrocatalyst in both acidic and alkaline conditions

Cited by 99 publications

References 33 publications

Crystalline Ru0.33Se Nanoparticles‐Decorated TiO2 Nanotube Arrays for Enhanced Hydrogen Evolution Reaction

Crystalline Ru0.33Se Nanoparticles‐Decorated TiO2 Nanotube Arrays for Enhanced Hydrogen Evolution Reaction

Heteroatom‐Mediated Interactions between Ruthenium Single Atoms and an MXene Support for Efficient Hydrogen Evolution

Ruthenium Nanoparticles for Catalytic Water Splitting

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Crystalline Ru_0.33Se Nanoparticles‐Decorated TiO₂ Nanotube Arrays for Enhanced Hydrogen Evolution Reaction

Crystalline Ru_0.33Se Nanoparticles‐Decorated TiO₂ Nanotube Arrays for Enhanced Hydrogen Evolution Reaction