In-situ generation of Ru-catechol coordinative polymer precursor for high-performance hydrogen evolution reaction doped carbon catalyst

Wu, Tong; Hong, Jing; Lu, Zhenwu; Wu, Haiyang; Wu, Chenzhi; Tang, Zhenbin; Liu, Xiaohui; Zeng, Birong; Xu, Yiting; Chen, Guorong; Yuan, Conghui; Dai, Lizong

doi:10.1016/j.apcatb.2020.119795

Cited by 37 publications

(21 citation statements)

References 45 publications

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“…Such a low value suggests a Volmer-Tafel-dominated HER mechanism for Pt 1 -VN catalyst, where the desorption of H 2 molecule at Pt single-atom site controls the reaction rate of the whole hydrogen production process. Based on the above results, the TOF of H 2 evolution for Pt 1 -VN (Equation S2, Supporting Information) was estimated to be 0.350 s −1 at an overpotential of 200 mV (Figure 5b), whose value is comparable to most previously reported noble-metal based catalysts, for example, Pt/RuCeO x -PA (0.92 H 2 s −1 at 120 mV), [20] Ru-NBC-1 (1.27 H 2 s −1 at 100 mV), [21] and also superior to other catalyst HER catalysts, for example, hH-MoS 2 (0.11 H 2 s −1 at 200 mV), [22] WC nanowall (1.00 H 2 s −1 at 126 mV), [23] Se-CoP (0.158 H 2 s −1 at 200 mV), [24] Ni{(SePi Pr 2 ) 2 N} 2 (0.26 H 2 s −1 at 300 mV), [25] 1Ni-0.5Mo 2 C/GNS (0.86 H 2 s −1 at 200 mV). [26] To evaluate the catalytic activity of each milligram of Pt metal atom, we examined the mass activity of the Pt 1 -VN catalyst based on ICP-OES measurement at a potential range from 0 to 0.2 V (Figure 5c).…”

Section: Hydrogen Production Of Sacssupporting

confidence: 85%

Role of N in Transition‐Metal‐Nitrides for Anchoring Platinum‐Group Metal Atoms toward Single‐Atom Catalysis

Cheng

Shi

et al. 2022

Small Methods

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Single‐atom catalysts (SACs) with a maximum atom utilization efficiency have received growing attention in heterogeneous catalysis. The supporting substrate that provides atomic‐dispersed anchoring sites and the local electronic environment in these catalysts is crucial to their activity and stability. Here, inspired by N‐doped graphene substrate, the role of N is explored in transition metal nitrides for anchoring single metal atoms toward single‐atom catalysis. A pore‐rich metallic vanadium nitride (VN) nanosheet is fabricated as one supporting‐substrate example, whose surface features abundant unsaturated N sites with lower binding energy than that of widely used N‐doped graphene. Impressively, it is found that this support can anchor nearly all platinum‐group single atoms (e.g., platinum, palladium, iridium, and ruthenium), and even be extendable to multiple SACs, i.e., binary (Pt/Pd) and ternary (Pt/Pd/Ir). As a proof‐of‐concept application for hydrogen production, Pt‐based SAC (Pt1‐VN) performs excellently, exhibiting a mass activity up to 22.55 A mg−1Pt at 0.05 V and a high turnover frequency value close to 0.350 H2 s−1, superior to commercial platinum/carbon catalyst. The catalyst's durability can be further improved by using binary (Pt1Pd1‐VN) SAC. This work provides inexpensive and durable nitride‐based support, giving a possible pathway for universally constructing platinum‐group SACs.

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Section: Hydrogen Production Of Sacssupporting

confidence: 85%

Role of N in Transition‐Metal‐Nitrides for Anchoring Platinum‐Group Metal Atoms toward Single‐Atom Catalysis

Cheng

Shi

et al. 2022

Small Methods

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“…Nanomaterials as catalytic materials have important application value in energy conversion and storage devices. [221][222][223][224][225][226][227][228][229][230][231][232][233][234][235] There are many classification methods of nanomaterials, according to their structures can be divided into: 0D, [236][237][238][239] 1D, [240][241][242] 2D, [243,244] and 3D nanomaterials. [245][246][247] For example, Liu et al [248] reported the 3D niconitrides nanoparticles/NiCo 2 O 4 nanoflakes/graphite fibers (NiCo-nitrides/NiCo 2 O 4 /GF), which was designed and fabricated by assembling nitride-oxides hetero-nanostructures onto graphite fibers via a simple electrochemical deposition and subsequent in situ nitridation (Figure 9a).…”

Section: Nanostructuringmentioning

confidence: 99%

“…Nanomaterials as catalytic materials have important application value in energy conversion and storage devices. [ 221 , 222 , 223 , 224 , 225 , 226 , 227 , 228 , 229 , 230 , 231 , 232 , 233 , 234 , 235 ] There are many classification methods of nanomaterials, according to their structures can be divided into: 0D, [ 236 , 237 , 238 , 239 ] 1D, [ 240 , 241 , 242 ] 2D, [ 243 , 244 ] and 3D nanomaterials. [ 245 , 246 , 247 ] For example, Liu et al.…”

Section: Strategies To Improve Her Electrocatalystsmentioning

confidence: 99%

Rational Design of Better Hydrogen Evolution Electrocatalysts for Water Splitting: A Review

et al. 2022

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The excessive dependence on fossil fuels contributes to the majority of CO2 emissions, influencing on the climate change. One promising alternative to fossil fuels is green hydrogen, which can be produced through water electrolysis from renewable electricity. However, the variety and complexity of hydrogen evolution electrocatalysts currently studied increases the difficulty in the integration of catalytic theory, catalyst design and preparation, and characterization methods. Herein, this review first highlights design principles for hydrogen evolution reaction (HER) electrocatalysts, presenting the thermodynamics, kinetics, and related electronic and structural descriptors for HER. Second, the reasonable design, preparation, mechanistic understanding, and performance enhancement of electrocatalysts are deeply discussed based on intrinsic and extrinsic effects. Third, recent advancements in the electrocatalytic water splitting technology are further discussed briefly. Finally, the challenges and perspectives of the development of highly efficient hydrogen evolution electrocatalysts for water splitting are proposed.

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“…It was found that ruthenium (Ru) is also an excellent material for the design of bifunctional electrocatalysts [93]. So far, numerous studies have shown that Ru and RuO2 exhibit excellent performance in HER and OER [94]. It should be noted that when the applied potential is greater than 0.04 V (vs. RHE), the sub-nano Ru is easily oxidized to RuO2, which provides effective guidance for the development of bifunctional catalysts with good properties for HER and OER [73].…”

Section: Electrocatalysts Of Ldhs Supporting Rumentioning

confidence: 99%

Recent Advances in Layered-Double-Hydroxides Based Noble Metal Nanoparticles Efficient Electrocatalysts

Zhang

et al. 2021

Nanomaterials

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With the energy crisis and environmental pollution becoming more and more serious, it is urgent to develop renewable and clean energy. Hydrogen production from electrolyzed water is of great significance to solve the energy crisis and environmental problems in the future. Recently, layered double hydroxides (LDHs) materials have been widely studied in the electrocatalysis field, due to their unique layered structure, tunable metal species and highly dispersed active sites. Moreover, the LDHs supporting noble metal catalysts obtained through the topotactic transformation of LDHs precursors significantly reduce the energy barrier of electrolyzing water, showing remarkable catalytic activity, good conductivity and excellent durability. In this review, we give an overview of recent advances on LDHs supporting noble metal catalysts, from a brief introduction, to their preparation and modification methods, to an overview of their application in the electrocatalysis field, as well as the challenges and outlooks in this promising field on the basis of current development.

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In-situ generation of Ru-catechol coordinative polymer precursor for high-performance hydrogen evolution reaction doped carbon catalyst

Cited by 37 publications

References 45 publications

Role of N in Transition‐Metal‐Nitrides for Anchoring Platinum‐Group Metal Atoms toward Single‐Atom Catalysis

Role of N in Transition‐Metal‐Nitrides for Anchoring Platinum‐Group Metal Atoms toward Single‐Atom Catalysis

Rational Design of Better Hydrogen Evolution Electrocatalysts for Water Splitting: A Review

Recent Advances in Layered-Double-Hydroxides Based Noble Metal Nanoparticles Efficient Electrocatalysts

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