Efficient Nitrate Synthesis via Ambient Nitrogen Oxidation with Ru‐Doped TiO<sub>2</sub>/RuO<sub>2</sub> Electrocatalysts

Kuang, Min; Wang, Yu; Fang, Wei; Tan, H.S.; Chen, Mengxin; Yao, Jiandong; Liu, Chuntai; Xu, Jianwei; Zhou, Kun; Yan, Qingyu

doi:10.1002/adma.202002189

Cited by 171 publications

(153 citation statements)

References 33 publications

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“…A recent study has indicated that an upshift of d‐band center facilitates an enhanced activity for accelerating electrochemical conversion of inert N 2 to active NO*. [ 309 ] Therefore, strain may be exploited to actively modulate the activity of NRR.…”

Section: Discussionmentioning

confidence: 99%

Promoting Electrocatalytic Hydrogen Evolution Reaction and Oxygen Evolution Reaction by Fields: Effects of Electric Field, Magnetic Field, Strain, and Light

et al. 2020

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promising alternative to fossil fuels. Water electrolysis by renewable resourcederived electricity represents a facile and green route to produce H 2. [1-13] Generally, the key to implement high-performance water splitting is to develop economically viable, efficient, and robust electrocatalysts to lower the activation potential barriers. Thus far, researchers have devoted extensive enthusiasm to the investigation of electrocatalysts. Currently, most efforts have been taken on the search for new materials, [14-16] regulation of morphology, [17] crystallinity, [18] facet, [19] component, [20-24] defect, [25,26] matter phase, [27,28] or the compositing of various materials with synergy. [29-36] However, the performances of emerging nonnoble electrocatalysts still lag behind those of noble ones. To address this issue, researchers have turned their attention beyond the electrocatalysts themselves. Field-assisted electrocatalysis is the electrocatalytic reaction proceeded in the presence of a field. It represents a promising methodology since it exerts an additional degree of freedom to engineer an electrochemical process. Inspiringly, indisputable improvements in electrocatalytic hydrogen evolution reaction (HER) and oxygen evolution reaction (OER) have been implemented with the assist of various fields, including electric field, magnetic field, strain, and light. For example, the electrocatalytic HER of a MoS 2 nanosheet is markedly boosted by simply exploiting a back gate voltage of 5 V. [37] Its overpotential at −100 mA cm −2 is decreased from 240 to 38 mV. In addition, enhancement of alkaline water electrolysis is achieved by applying a moderate magnetic field (≤450 mT) to an electrocatalytic anode consists of highly magnetic electrocatalysts. [38] Its current density increments are beyond 100%. Furthermore, the HER activity of β-PdH x increases monotonically as the applied strain increases from 0% to 4.5%. [39] Lastly, an approximately threefold increase in current density of Au-MoS 2 for electrocatalytic HER is realized upon the illumination of IR light. [40] These results undoubtedly elucidate that applying a field during electrocataly sis opens up great opportunities toward further improving electrocatalytic activity. Moreover, this approach provides merits of facile, dynamical, continuous, reversible, and universal control. Despite fascinating achievements, these investigations are relatively scattered. The underneath mechanisms and principles Hydrogen fuel is considered as one of the most clean renewable resources, warranting it a primary alternative to fossil fuels for future energy supplies. Electrocatalytic water splitting is an eco-friendly technique for high-purity hydrogen production. However, the sluggish dynamics of its two halfreactions, hydrogen evolution reaction (HER) and oxygen evolution reaction (OER), are tough challenges impeding the practical application of this technology. In these years, external field-assisted HER and OER have attracted extensive research interests. Herein, the effects o...

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Section: Discussionmentioning

confidence: 99%

Promoting Electrocatalytic Hydrogen Evolution Reaction and Oxygen Evolution Reaction by Fields: Effects of Electric Field, Magnetic Field, Strain, and Light

et al. 2020

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“…The second step is a redox reaction, in which NO * is transformed into nitrate over the active sites. 116 In this process, the highly active and selective catalyst materials for NOR are very important.…”

Section: Nitrogen Oxidation Reactionmentioning

confidence: 99%

“…In particular, Ti-based materials have been extensively studied due to their high photocatalytic activity and stability. 116,[128][129][130][131][132] Titanium alkoxides prepared by the high-temperature hydrolysis method have shown high denitrification activity, with a high absorption rate of 98% for NO photocatalytic oxidation. 133 In 2008, TiO 2 nanoparticles coating on woven glass fabric was used as a photocatalyst, which showed a good effect for removing nitrogen oxides and an efficiency of 63.9% upon the steady-state.…”

Section: Denitrification Of Gaseous Nitrogen Oxidesmentioning

confidence: 99%

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Rational design on photo(electro)catalysts for artificial nitrogen looping

Liu

Wang

et al. 2021

EcoMat

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Nitrogen, one of most important elements on the Earth, plays an essential role in shaping the modern society. The natural nitrogen looping, however, is insufficient to satisfy the high demand of the large-scale human activities. To achieve a more sustainable and efficient utilization of nitrogen, artificial nitrogen looping by photo(electro)catalytic processes has been considered as a feasible strategy. In this context, the rational design on the high-performance catalysts for nitrogen looping becomes increasingly important and urgent. On this basis, herein, we provide a timely review on the recent progress, achievements, and essential challenges for the artificial nitrogen looping process, mainly including photo(electro)catalytic transformations among dinitrogen, ammonia, gaseous nitrogen oxides, nitrate, and so on. Especially, the photo(electro)catalysts used in various reactions involved in nitrogen looping, including nitrogen reduction reaction, nitrogen oxidation reaction, ammonia oxidation reaction, ammonia decomposition reaction, etc., are systematically introduced. Finally, we hope that this review will help us deepen the understanding of nitrogen looping-related photo(electro)catalysts, and further pave a way toward the sustainable development on energy and environment. K E Y W O R D Senvironmental protection, nitrogen looping, photo(electro)catalysis, sustainable energy Mengying Li and Xiaoqing Liu contributed equally to this study.

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“…The interest in using catalysts at low cost, rich abundance, and reversibility in terms of oxygen reactions has been growing. Ru–Sn oxides, as well as transitional metal oxides, nitrides, selenides, hydroxides, carbides, phosphides, and their hybrids and/or alloys, have been currently reported 8–13 . However, most of them still underperform the precious metal benchmarks due to their inherent corrodibility and poor electrical conductivity.…”

Section: Introductionmentioning

confidence: 99%

Carbon‐based materials for all‐solid‐state zinc–air batteries

et al. 2020

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Solid‐state Zn–air batteries (ZABs) hold great potential for application in wearable and flexible electronics. However, further commercialization of current ZABs is still limited by the poor stability and low energy efficiency. It is, thus, crucial to develop efficient catalysts as well as optimize the solid electrolyte system to unveil potential of the ZAB technology. Due to the low cost and versatility in tailoring the structures and properties, carbon materials have been extensively used as the conductive substrates, catalytic air electrodes, and important components in the electrolytes for the solid‐state ZABs. Within this context, we discuss the challenges facing current solid‐state ZABs and summarize the strategies developed to modify properties of carbon‐based electrodes and electrolytes. We highlight the metal−organic framework/covalent organic framework‐based electrodes, heteroatom‐doped carbon, and the composites formed of carbon with metal oxides/sulfides/phosphides. We also briefly discuss the progress of graphene oxide‐based solid electrolyte.

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Efficient Nitrate Synthesis via Ambient Nitrogen Oxidation with Ru‐Doped TiO₂/RuO₂ Electrocatalysts

Cited by 171 publications

References 33 publications

Promoting Electrocatalytic Hydrogen Evolution Reaction and Oxygen Evolution Reaction by Fields: Effects of Electric Field, Magnetic Field, Strain, and Light

Promoting Electrocatalytic Hydrogen Evolution Reaction and Oxygen Evolution Reaction by Fields: Effects of Electric Field, Magnetic Field, Strain, and Light

Rational design on photo(electro)catalysts for artificial nitrogen looping

Carbon‐based materials for all‐solid‐state zinc–air batteries

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Efficient Nitrate Synthesis via Ambient Nitrogen Oxidation with Ru‐Doped TiO2/RuO2 Electrocatalysts

Cited by 171 publications

References 33 publications

Promoting Electrocatalytic Hydrogen Evolution Reaction and Oxygen Evolution Reaction by Fields: Effects of Electric Field, Magnetic Field, Strain, and Light

Promoting Electrocatalytic Hydrogen Evolution Reaction and Oxygen Evolution Reaction by Fields: Effects of Electric Field, Magnetic Field, Strain, and Light

Rational design on photo(electro)catalysts for artificial nitrogen looping

Carbon‐based materials for all‐solid‐state zinc–air batteries

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Efficient Nitrate Synthesis via Ambient Nitrogen Oxidation with Ru‐Doped TiO₂/RuO₂ Electrocatalysts