Enhanced interaction between Ru nanoparticles and N, C-modified mesoporous TiO<sub>2</sub>for efficient electrocatalytic hydrogen evolution at all pH values

Xu, Wei; Xie, Huijie; Cao, Fuliang; Ran, Saisai; Duan, Yuhao; Li, Bin; Wang, Lei

doi:10.1039/d2ta06390e

Cited by 12 publications

(2 citation statements)

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“…It indicates that MXene@Co 3 O 4 /CC is conducive to electron transport. [51] The CV curves for MXene@Co 3 O 4 /CC, Co 3 O 4 /CC, DSA, and CC at various scan rates in the non-Faraday region (0.5-0.6 V) are shown in Figure S10 (Supporting Information). The double-layer capacitance (C dl ) value is obtained by calculating half of the slope obtained by linearly fitting the current (j a -j c ) at the 0.55 V scan rate pattern (Figure 3e).…”

Section: Resultsmentioning

confidence: 99%

2D MXene Ti₃C₂ Coupled with 1D Co₃O₄ Nanowires on Carbon Cloth for Efficient Chlorine Evolution Activity

Li,

Duan,

Wei

et al. 2024

Adv Funct Materials

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Chlorine evolution reaction (CER) is a key anode reaction in chlor‐alkali electrolysis. Although non‐precious metals have been widely used as CER catalysts, their low catalytic activity has been a major constraint on their development. Herein, 1D Co3O4 coupled with 2D Ti3C2 MXene on carbon cloth for highly efficient CER is reported by constructing two different heterojunctions (1D Co3O4 tip to 2D Ti3C2 face and 1D face to 2D face) through electronic coupling and strong interfacial interaction. The decreased electron density around O atoms in Co─O and Ti─O at two heterojunctions is more conducive to the adsorption of Cl−, thereby reducing the free energy of the reaction and jointly promoting CER. Consequently, the MXene@Co3O4/CC (carbon cloth) exhibits a low overpotential of 86 mV at 10 mA cm−1, low tafel slope of 47.9 mV dec−1, which is superior to commercial DSA and other non‐precious metal materials. This work provides new insights into the rational design of multiple heterojunctions, which leads to a new path for non‐precious metal catalysts in CER.

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Section: Resultsmentioning

confidence: 99%

2D MXene Ti₃C₂ Coupled with 1D Co₃O₄ Nanowires on Carbon Cloth for Efficient Chlorine Evolution Activity

Li,

Duan,

Wei

et al. 2024

Adv Funct Materials

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“…Compared with traditional one-step methods which normally produce porous TiO 2 with randomly oriented micro/nano-sized particles, this strategy provides an efficient way for the construction of low defect porous crystals. 38,41,42 Meanwhile, Ru 3+ contributes to the generation of Ti 3+ species and oxygen vacancies, promoting solar light absorption, and the formation of more photoactive sites. XRD and HRTEM confirmed the formation of porous crystals and the incorporation of Ru into the TiO 2 lattice.…”

Section: Introductionmentioning

confidence: 99%

Highly effective ruthenium-doped mesoporous Ti_1−xRu_xO_2−y crystals for photocatalytic tetracycline degradation

et al. 2023

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Microwave Phosphine‐Plasma‐Assisted Ultrafast Synthesis of Halogen‐Doped Ru/RuP₂ with Surface Intermediate Adsorption Modulation for Efficient Alkaline Hydrogen Evolution Reaction

Wu,

Li,

et al. 2023

Advanced Materials

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Anionic modification engineering is a crucial approach to develop highly efficient electrocatalysts for hydrogen evolution reaction. Herein, halogen elements (X = Cl, Br, and I)‐modified Ru‐based nanosheets (X‐Ru/RuP2) are designed by rapid and eco‐friendly microwave‐phosphide plasma approach within 60 s. Experimental and density functional theory calculations verify that the introduced halogen element, especially Br, can optimize the surface intermediates adsorption. Specially, the designed Br‐Ru/RuP2 favors the water dissociation and following hydrogen adsorption/desorption process. Then, the as‐synthesized Br‐Ru/RuP2 exhibits low overpotential of 34 mV to reach 10 mA cm−2 coupled with small Tafel slope of 27 mV dec−1 in alkaline electrolyte with excellent long‐term stability. Moreover, the electrocatalytic performances in acid and neutral media are also boosted via Br element modification. This work paves a novel way to regulate the electronic structure of Ru‐based compounds, and then can boost the electrocatalytic kinetics.

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Enhanced interaction between Ru nanoparticles and N, C-modified mesoporous TiO₂for efficient electrocatalytic hydrogen evolution at all pH values

Abstract: Tailoring the interaction between metal nanoparticles and support is of great significance in the development of efficient and economical non-platinum catalysts for electrocatalytic hydrogen evolution reaction (HER). In this study,...

Cited by 12 publications

References 59 publications

2D MXene Ti₃C₂ Coupled with 1D Co₃O₄ Nanowires on Carbon Cloth for Efficient Chlorine Evolution Activity

2D MXene Ti₃C₂ Coupled with 1D Co₃O₄ Nanowires on Carbon Cloth for Efficient Chlorine Evolution Activity

Highly effective ruthenium-doped mesoporous Ti_1−xRu_xO_2−y crystals for photocatalytic tetracycline degradation

Microwave Phosphine‐Plasma‐Assisted Ultrafast Synthesis of Halogen‐Doped Ru/RuP₂ with Surface Intermediate Adsorption Modulation for Efficient Alkaline Hydrogen Evolution Reaction

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Enhanced interaction between Ru nanoparticles and N, C-modified mesoporous TiO2for efficient electrocatalytic hydrogen evolution at all pH values

Abstract: Tailoring the interaction between metal nanoparticles and support is of great significance in the development of efficient and economical non-platinum catalysts for electrocatalytic hydrogen evolution reaction (HER). In this study,...

Cited by 12 publications

References 59 publications

2D MXene Ti3C2 Coupled with 1D Co3O4 Nanowires on Carbon Cloth for Efficient Chlorine Evolution Activity

2D MXene Ti3C2 Coupled with 1D Co3O4 Nanowires on Carbon Cloth for Efficient Chlorine Evolution Activity

Highly effective ruthenium-doped mesoporous Ti1−xRuxO2−y crystals for photocatalytic tetracycline degradation

Microwave Phosphine‐Plasma‐Assisted Ultrafast Synthesis of Halogen‐Doped Ru/RuP2 with Surface Intermediate Adsorption Modulation for Efficient Alkaline Hydrogen Evolution Reaction

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Enhanced interaction between Ru nanoparticles and N, C-modified mesoporous TiO₂for efficient electrocatalytic hydrogen evolution at all pH values

2D MXene Ti₃C₂ Coupled with 1D Co₃O₄ Nanowires on Carbon Cloth for Efficient Chlorine Evolution Activity

2D MXene Ti₃C₂ Coupled with 1D Co₃O₄ Nanowires on Carbon Cloth for Efficient Chlorine Evolution Activity

Highly effective ruthenium-doped mesoporous Ti_1−xRu_xO_2−y crystals for photocatalytic tetracycline degradation

Microwave Phosphine‐Plasma‐Assisted Ultrafast Synthesis of Halogen‐Doped Ru/RuP₂ with Surface Intermediate Adsorption Modulation for Efficient Alkaline Hydrogen Evolution Reaction