Engineering local environment of ruthenium by defect-tuned SnO2 over carbon cloth for neutral-media N2 electroreduction

Sun, Ying; Wu, Qiaoling; Li, Hui; Jiang, Shuaiyu; Wang, Jingang; Zhang, Wei; Song, Xi‐Ming; Jia, Baohua; Qiu, Jieshan; Ma, Tianyi

doi:10.1016/j.carbon.2022.04.026

Cited by 18 publications

(13 citation statements)

References 45 publications

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“…Nitrogen (N 2 , 99.999%) or argon (Ar, 99.999%) was continuously supplied to the cathode during the electrocatalytic process. The concentrations of produced NH 3 and the possible by‐product hydrazine (N 2 H 4 ) were quantitative analyzed by the indophenol blue method, [ 32 ] the ammonia gas‐sensitive electrode method and Watt and Chris method, [ 36 ] corresponding experimental details and calibration curves were provided in Figures S5–S7 (Supporting Information), respectively. All potentials here were reported against RHE scale through calibrating with the Nernst equation ( E RHE = E Ag/AgCl + 0.059 pH + 0.205 V).…”

Section: Resultsmentioning

confidence: 99%

“…Despite encouraging progress in electrocatalytic NRR, three major bottlenecks seriously impede its practical applications. [32] One is the sluggish kinetics stems from the robust N≡N bond, inadequate adsorption of N 2 over the catalytic active sites, as well as the low solubility of N 2 in aqueous. [33,34] The other is the unsatisfactory Faradaic efficiency (FE) of NRR caused by the unwanted hydrogen evolution reaction (HER) in aqueous.…”

Section: Introductionmentioning

confidence: 99%

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Architecting Bismuth Molybdate Nanoparticles with Abundant Oxygen Vacancies and High Bismuth Concentration for Efficient N₂ Electroreduction to NH₃

Zhang

et al. 2023

Adv Materials Inter

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N2 electroreduction reaction (NRR) enables an eco‐friendly NH3 synthesis under mild conditions, which is regarded as a carbon‐neutral alternative technology to the traditional Haber–Bosch process. However, its practical applications are seriously impeded by the difficulty in N2 adsorption and activation over catalysts, as well as the competing hydrogen evolution reaction (HER). In this work, a novel bismuth molybdate nanocatalyst with sufficient oxygen vacancies and high Biconcentration (41.9 at%), BiMoO‐OVs, is synthesized and demonstrated as an excellent NRR electrocatalyst. Benefiting from synergistic effect of the adequate Bi active centers with inert HER activity provided by the high concentration of Bi, and the reinforced N2 adsorption and activation ability of oxygen vacancies, the as‐synthesized BiMoO‐OVs presents a high Faradaic efficiency of 16.38% with a NH3 yield rate of 3.65 µg h−1 cm−2 at −0.4 V (vs RHE) in neutral electrolyte, which outperforms those of most Bi‐based NRR nanocatalysts. Noticeably, it also presents excellent electrochemical durability for at least 24 h. The present work provides a simple and effective strategy for designing low‐cost and high‐performance Bi‐based catalysts.

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Section: Resultsmentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

Architecting Bismuth Molybdate Nanoparticles with Abundant Oxygen Vacancies and High Bismuth Concentration for Efficient N₂ Electroreduction to NH₃

Zhang

et al. 2023

Adv Materials Inter

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“…144 Sun et al combined the heteroatom doping with defect engineering and synthesised Ru-doped defect-rich SnO 2 nanoparticles on carbon cloth (Ru-SnO 2 -CC). 145 For the NRR, the local coordination environment of the Ru active site is adjusted by the abundant O vacancies (the high concentration of O vacancies was demonstrated by EPR spectra), thus favouring N 2 activation. SnO 2 facilitates the structure stability and suppresses the HER.…”

Section: Nrr On Metal and Alloy Nanoparticlesmentioning

confidence: 99%

Theoretical and experimental progress of metal electrocatalysts for the nitrogen reduction reaction

Zhang

Liu

et al. 2023

Mater. Chem. Front.

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“…LD materials can be synthesized by both bottom-up and topdown techniques. 42,43 Bottom-up strategy involves stacking atoms onto each other to synthesize LD materials, while the top-down method implies that LD materials are synthesized by exfoliating bulk counterpart crystals to obtain individual pieces.…”

Section: Pristine Ld Materials With Intrinsic Piezoelectricitymentioning

confidence: 99%

“…LD materials can be synthesized by both bottom-up and top-down techniques. , Bottom-up strategy involves stacking atoms onto each other to synthesize LD materials, while the top-down method implies that LD materials are synthesized by exfoliating bulk counterpart crystals to obtain individual pieces. The bottom-up synthesis includes chemical vapor deposition (CVD), a sol–gel method, self-assembly processes, and hydro/solvothermal synthesis.…”

Section: Pristine Ld Materials With Intrinsic Piezoelectricitymentioning

confidence: 99%

Enhanced Piezoelectric Properties Enabled by Engineered Low-Dimensional Nanomaterials

Wang

Guo

et al. 2022

ACS Appl. Nano Mater.

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Today's electronic products are moving toward personal, portable, and flexible electronics with the integration of multifunctional sensors and self-powering technologies. Consequently, efficient and highperformance mechanical−electronic interfaces will be heavily considered in the development of future electronics. Piezotronic materials are active components for the conversion of mechanical stimuli to electrical signals and vice versa. In particular, low-dimensional (LD) materials offer greater efficiencies in piezoelectric materials than their bulk counterparts. Piezoelectric LD materials have attracted significant attention because of their successful integration in miniatured and flexible electronics. The origin of the piezoelectric responses of the LD materials is ascribed as a loss of centrosymmetry and inversion center. However, challenges exist in utilizing piezoelectric materials to their full potential, including effective charge separation upon external stimuli and imperfections in their crystal structures. Therefore, considerable efforts have been devoted to engineering the LD piezoelectric materials by rational structural design and chemical modification to further improve the piezoelectric performances. Herein, we comprehensively review the recent advances for engineering technologies of piezoelectric materials on the scale of zero-dimensional (0D), one-dimensional (1D), and two-dimensional (2D), which are mainly focused on creating defects, doping, and forming Janus structures and heterointerfaces with other materials. Meanwhile, the relationships between the morphological, physicochemical, and electronics of engineered LD piezoelectric materials and their piezoelectric performances are systematically discussed. Finally, we further present the prospect and challenge of the field and future research direction, aiming to inspire more research for achieving high-performance LD piezoelectric materials in sensors, actuators, and micro-and nanoelectromechanical systems.

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Engineering local environment of ruthenium by defect-tuned SnO2 over carbon cloth for neutral-media N2 electroreduction

Cited by 18 publications

References 45 publications

Architecting Bismuth Molybdate Nanoparticles with Abundant Oxygen Vacancies and High Bismuth Concentration for Efficient N₂ Electroreduction to NH₃

Architecting Bismuth Molybdate Nanoparticles with Abundant Oxygen Vacancies and High Bismuth Concentration for Efficient N₂ Electroreduction to NH₃

Theoretical and experimental progress of metal electrocatalysts for the nitrogen reduction reaction

Enhanced Piezoelectric Properties Enabled by Engineered Low-Dimensional Nanomaterials

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Engineering local environment of ruthenium by defect-tuned SnO2 over carbon cloth for neutral-media N2 electroreduction

Cited by 18 publications

References 45 publications

Architecting Bismuth Molybdate Nanoparticles with Abundant Oxygen Vacancies and High Bismuth Concentration for Efficient N2 Electroreduction to NH3

Architecting Bismuth Molybdate Nanoparticles with Abundant Oxygen Vacancies and High Bismuth Concentration for Efficient N2 Electroreduction to NH3

Theoretical and experimental progress of metal electrocatalysts for the nitrogen reduction reaction

Enhanced Piezoelectric Properties Enabled by Engineered Low-Dimensional Nanomaterials

Contact Info

Product

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About

Architecting Bismuth Molybdate Nanoparticles with Abundant Oxygen Vacancies and High Bismuth Concentration for Efficient N₂ Electroreduction to NH₃

Architecting Bismuth Molybdate Nanoparticles with Abundant Oxygen Vacancies and High Bismuth Concentration for Efficient N₂ Electroreduction to NH₃