High-Efficiency N2 Electroreduction Enabled by Se-Vacancy-Rich WSe2-x in Water-in-Salt Electrolytes

Article Chemistry, Physical

Metal-free BN quantum dots/graphitic C3N4 heterostructure for nitrogen reduction reaction

Qingqing Li et al.

Summary: Researchers have developed a metal-free BNQDs/C3N4 heterostructure catalyst with outstanding performance in N-2 reduction reaction, surpassing nearly all previously reported metal-free catalysts.

JOURNAL OF COLLOID AND INTERFACE SCIENCE (2022)

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Article Chemistry, Physical

Unveiling the Synergy of O-Vacancy and Heterostructure over MoO3-x/MXene for N2 Electroreduction to NH3

Ke Chu et al.

Summary: In this study, vacancy and heterostructure engineering were integrated to develop O-vacancy-rich MoO3-x anchored on Ti3C2Tx-MXene as a highly active and selective NRR electrocatalyst. Experimental results demonstrated exceptional NRR activity, increased NH3 yield, and Faradaic efficiency for the catalyst.

ADVANCED ENERGY MATERIALS (2022)

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Article Chemistry, Physical

Amorphization engineered VSe2-x nanosheets with abundant Se-vacancies for enhanced N2 electroreduction

Yaojing Luo et al.

Summary: In this study, the structural regulation of VSe2 through amorphization engineering led to the development of amorphous VSe2-x nanosheets with enriched Se-vacancies, resulting in significantly enhanced NRR activity. These amorphous VSe2-x nanosheets exhibited high NH3 yield and faradaic efficiency in NH3 synthesis, outperforming their crystalline counterparts.

JOURNAL OF MATERIALS CHEMISTRY A (2022)

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Article Multidisciplinary Sciences

Engineering vacancy and hydrophobicity of two-dimensional TaTe2 for efficient and stable electrocatalytic N2 reduction

Zhenqing Zhao et al.

Summary: This study successfully increased the efficiency of ambient NRR for ammonia production by tuning the Te vacancies and surface hydrophobicity of two-dimensional TaTe2 nanosheets. It achieved remarkable NH3 faradic efficiency and maintained high stability, with the edge plane of TaTe2 and VTe identified as the main active sites for NRR.

INNOVATION (2022)

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Article Chemistry, Multidisciplinary

Advanced Electrocatalysis for Energy and Environmental Sustainability via Water and Nitrogen Reactions

Yi Li et al.

Summary: The passage discusses the importance of clean and efficient energy storage and conversion through sustainable water and nitrogen reactions, emphasizing the crucial role of electrochemical reactions in clean energy technologies and the significance of innovative electrocatalysis in boosting energy conversion efficiency.

ADVANCED MATERIALS (2021)

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Review Materials Science, Multidisciplinary

Recent advance in single-atom catalysis

Zeng-Xi Wei et al.

Summary: Single-atom catalysts (SACs) have shown great potential in various catalytic fields due to their high atom utilization efficiency and catalytic activity, but fabricating SACs with high metal loading and investigating their reaction mechanisms remain significant challenges. This review highlights the recent developments and future research directions of SACs in thermal, electrocatalytic, and photocatalytic applications.

RARE METALS (2021)

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Article Materials Science, Multidisciplinary

Highly efficient nanoporous CoBP electrocatalyst for hydrogen evolution reaction

Hui-Lan Guang et al.

Summary: This study prepared self-supporting nanoporous CoBP electrocatalyst by dealloying method and investigated the influence of synergistic effect of nonmetallic elements on catalytic activity. The synergistic electronic effect of Co, B, and P atoms on the surface optimizes the desorption of H atoms, resulting in superior hydrogen evolution reaction activity.

RARE METALS (2021)

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Article Chemistry, Applied

Amorphous MoS3 enriched with sulfur vacancies for efficient electrocatalytic nitrogen reduction

Ke Chu et al.

Summary: The study demonstrates MoS3 as an efficient and durable NRR catalyst with high NH3 yield and Faradaic efficiency. Density functional theory calculations reveal the crucial role of S vacancies in activating the NRR mechanism.

JOURNAL OF ENERGY CHEMISTRY (2021)

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Review Chemistry, Multidisciplinary

Electrochemical ammonia synthesis: Mechanistic understanding and catalyst design

Huidong Shen et al.

Summary: NH3 production currently relies on the energy-intensive Haber-Bosch process, but electrochemical NH3 synthesis powered by renewable electricity offers a promising carbon-neutral and sustainable strategy. However, significant enhancements in energy efficiency, conversion rate, and durability are still needed, achievable only through the design of efficient electrocatalysts.

CHEM (2021)

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Review Chemistry, Multidisciplinary

Anticatalytic Strategies to Suppress Water Electrolysis in Aqueous Batteries

Yiming Sui et al.

Summary: Aqueous electrolytes are a promising candidate for safe and low-cost storage batteries, but the narrow electrochemical stability window of water poses challenges for the development of high-energy aqueous batteries. Electrolysis of water leads to HER and OER, causing inefficiency, short device lifespan, and safety issues. Understanding the mechanisms of HER and OER and addressing water electrolysis suppression are critical for the future advancement of aqueous battery technology.

CHEMICAL REVIEWS (2021)

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Article Chemistry, Multidisciplinary

Sulfur-Dopant-Promoted Electroreduction of CO2 over Coordinatively Unsaturated Ni-N-2 Moieties

Chen Jia et al.

Summary: Introducing alien sulfur atoms to tune the local electronic density of unsaturated NiN2 species enhances the efficiency of electrochemical CO2-to-CO conversion. The sulfur dopants improve CO selectivity and activity, reducing energy barriers for the electroreduction of CO2 to CO. This leads to a high CO Faradaic efficiency and large CO current density in H-cell measurements.

ANGEWANDTE CHEMIE-INTERNATIONAL EDITION (2021)

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Article Chemistry, Multidisciplinary

Synergistic Enhancement of Electrocatalytic Nitrogen Reduction Over Boron Nitride Quantum Dots Decorated Nb2CTx-MXene

Ke Chu et al.

Summary: A novel hexagonal BN quantum dots (BNQDs) decorated Nb2CTx-MXene (BNQDs@Nb2CTx) has been explored as an efficient NRR catalyst, which shows optimum NRR activity, high Faradaic efficiency, and excellent stability, outperforming most of the state-of-the-art NRR catalysts. The synergistic interplay of BNQDs and Nb2CTx creates unique interfacial B sites serving as NRR catalytic centers, enhancing N-2 activation and impeding H-2 evolution.

SMALL (2021)

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Article Multidisciplinary Sciences

Salting-out effect promoting highly efficient ambient ammonia synthesis

Mengfan Wang et al.

Summary: The electroreduction of nitrogen to ammonia offers a promising alternative to the energy-intensive Haber-Bosch process but suffers from low activity and selectivity. Here, authors demonstrate that triggering a salting-out effect in a highly concentrated electrolyte can achieve highly efficient ammonia synthesis.

NATURE COMMUNICATIONS (2021)

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Article Chemistry, Physical

Molecular Crowding Effect in Aqueous Electrolytes to Suppress Hydrogen Reduction Reaction and Enhance Electrochemical Nitrogen Reduction

Ying Guo et al.

Summary: This study developed HER-suppressing electrolytes using hydrophilic poly(ethylene glycol) (PEG) as an additive, which promotes NRR by retarding HER kinetics. Significantly improved NRR activity was achieved on a TiO2 nanoarray electrode in PEG-containing acidic electrolytes, with NH3 Faraday efficiency of 32.13% and yield of 1.07 mu mol center dot cm(-2)center dot h(-1), 9.4-times and 3.5-times higher than those in pure acidic electrolytes.

ADVANCED ENERGY MATERIALS (2021)

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Article Chemistry, Physical

SnNb2O6 nanosheets for the electrocatalytic NRR: dual-active-center mechanism of Nb3c and Sn4c-Nb5c dimer

Xiaotian Li et al.

Summary: Utilizing graphite-like SnNb2O6 nanosheets as an NRR catalyst improved the ammonia yield, reduced the energy barrier, and enhanced the electrocatalytic NRR efficiency.

SUSTAINABLE ENERGY & FUELS (2021)

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Article Chemistry, Physical

Constructing an electron-rich interface over an Sb/Nb2CTx-MXene heterojunction for enhanced electrocatalytic nitrogen reduction

Xingchuan Li et al.

Summary: In this study, a highly efficient NRR catalyst Sb/Nb2CTx was reported, achieving high NH3 yield and selectivity. Density functional theory calculations revealed the mechanism behind the excellent performance of this catalyst.

JOURNAL OF MATERIALS CHEMISTRY A (2021)

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Article Chemistry, Physical

Alkylthiol surface engineering: an effective strategy toward enhanced electrocatalytic N2-to-NH3 fixation by a CoP nanoarray

Zhaobai Du et al.

Summary: Surface engineering of a CoP nanoarray supported on a titanium mesh using hydrophobic octadecanethiol enhances the electrocatalytic activity for N-2-to-NH3 conversion. This strategy improves NH3 yield and FE while maintaining stability and durability, showing promising potential for renewable electricity storage.

JOURNAL OF MATERIALS CHEMISTRY A (2021)

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Review Chemistry, Multidisciplinary

Strategies to suppress hydrogen evolution for highly selective electrocatalytic nitrogen reduction: challenges and perspectives

Yongwen Ren et al.

Summary: The translation provides an overview of the current status and challenges of the electrocatalytic N-2 reduction reaction (NRR) for ammonia synthesis, focusing on strategies for inhibiting the competing hydrogen evolution reaction (HER) to achieve high NRR selectivity. The article also discusses strategies for suppressing H-2 evolution based on NRR mechanisms, kinetics, thermodynamics, and electrocatalyst design.

ENERGY & ENVIRONMENTAL SCIENCE (2021)

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Article Chemistry, Physical

A magnetron sputtered Mo3Si thin film: an efficient electrocatalyst for N2 reduction under ambient conditions

Ting Wang et al.

Summary: This study reports the electrocatalytic properties of a Mo3Si thin film sputtered on graphite paper for NH3 synthesis, showing high NH3 yield rate and Faraday efficiency, as well as demonstrating excellent stability and selectivity. The synergy of metallic conductivity of Mo3Si and high chemical activity of exposed Mo ions benefits N-2 adsorption and activation, ultimately leading to NH3 production.

JOURNAL OF MATERIALS CHEMISTRY A (2021)

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Article Chemistry, Physical

A magnetron sputtered Mo3Si thin film: an efficient electrocatalyst for N2 reduction under ambient conditions

Ting Wang et al.

Summary: This study reports that a Mo3Si thin film sputtered on graphite paper is a favorable electrocatalyst for NH3 synthesis under ambient conditions, with high NH3 yield rate and Faraday efficiency. The synergy of metallic conductivity of Mo3Si and high chemical activity of exposed Mo ions benefits the adsorption and activation of N-2, leading to NH3 production.

JOURNAL OF MATERIALS CHEMISTRY A (2021)

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Review Chemistry, Multidisciplinary

The Applications of Water-in-Salt Electrolytes in Electrochemical Energy Storage Devices

Tingting Liang et al.

Summary: Water-in-salt electrolytes (WISEs) have gained attention for their non-flammability, environmental friendliness, and wider electrochemical stability window compared to conventional dilute aqueous electrolytes. They offer advantages such as high safety levels, manufacturing efficiency, and superior electrochemical performances when used in electrochemical energy storage devices. This review discusses the physicochemical and electrochemical properties of WISEs, summarizes research progress using different metal salts, and systematically explores their applications in various EES devices along with future perspectives.

ADVANCED FUNCTIONAL MATERIALS (2021)

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Article Nanoscience & Nanotechnology

Two-dimensional (2D)/2D Interface Engineering of a MoS2/C3N4 Heterostructure for Promoted Electrocatalytic Nitrogen Fixation

Ke Chu et al.

ACS APPLIED MATERIALS & INTERFACES (2020)

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Review Chemistry, Multidisciplinary

Recent Advances and Challenges of Electrocatalytic N2 Reduction to Ammonia

Geletu Qing et al.

CHEMICAL REVIEWS (2020)

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Article Chemistry, Physical

Reduced graphene oxides with engineered defects enable efficient electrochemical reduction of dinitrogen to ammonia in wide pH range

Mingli Zhang et al.

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Lithium Iron Oxide (LiFeO2) for Electroreduction of Dinitrogen to Ammonia

Weicong Gu et al.

ACS APPLIED MATERIALS & INTERFACES (2020)

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Greatly Enhanced Electrocatalytic N2Reduction over V2O3/C by P Doping

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Ru-doped phosphorene for electrochemical ammonia synthesis

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RARE METALS (2020)

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Defect engineering for electrochemical nitrogen reduction reaction to ammonia

Chenhuai Yang et al.

NANO ENERGY (2020)

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Activating VS2basal planes for enhanced NRR electrocatalysis: the synergistic role of S-vacancies and B dopants

Qingqing Li et al.

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Fe-doping induced morphological changes, oxygen vacancies and Ce3+-Ce3+ pairs in CeO2 for promoting electrocatalytic nitrogen fixation

Ke Chu et al.

JOURNAL OF MATERIALS CHEMISTRY A (2020)

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Article Chemistry, Physical

Mo-doped SnS2 with enriched S-vacancies for highly efficient electrocatalytic N2 reduction: the critical role of the Mo-Sn-Sn trimer

Ke Chu et al.

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Synergistic boron-dopants and boron-induced oxygen vacancies in MnO2 nanosheets to promote electrocatalytic nitrogen reduction

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A rigorous electrochemical ammonia synthesis protocol with quantitative isotope measurements

Suzanne Z. Andersen et al.

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Nitrogen Vacancies on 2D Layered W2N3: A Stable and Efficient Active Site for Nitrogen Reduction Reaction

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Electronically Coupled SnO2 Quantum Dots and Graphene for Efficient Nitrogen Reduction Reaction

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Electrochemical Reduction of N2 into NH3 by Donor-Acceptor Couples of Ni and Au Nanoparticles with a 67.8% Faradaic Efficiency

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Oxygen vacancy enables electrochemical N2 fixation over WO3 with tailored structure

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Tuning the Electron Localization of Gold Enables the Control of Nitrogen-to-Ammonia Fixation

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ANGEWANDTE CHEMIE-INTERNATIONAL EDITION (2019)

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Greatly Improving Electrochemical N2 Reduction over TiO2 Nanoparticles by Iron Doping

Tongwei Wu et al.

ANGEWANDTE CHEMIE-INTERNATIONAL EDITION (2019)

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Activated TiO2 with tuned vacancy for efficient electrochemical nitrogen reduction

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Facilitating nitrogen accessibility to boron-rich covalent organic frameworks via electrochemical excitation for efficient nitrogen fixation

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How to explore ambient electrocatalytic nitrogen reduction reliably and insightfully

Cheng Tang et al.

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Atomically dispersed metal dimer species with selective catalytic activity for nitrogen electrochemical reduction

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Advances in Electrocatalytic N2 Reduction-Strategies to Tackle the Selectivity Challenge

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Electrochemical nitrogen fixation and utilization: theories, advanced catalyst materials and system design

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Challenges and prospects in the catalysis of electroreduction of nitrogen to ammonia

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Efficient electrocatalytic N2 reduction on CoO quantum dots

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Electrochemical Ammonia Synthesis via Nitrogen Reduction Reaction on a MoS2 Catalyst: Theoretical and Experimental Studies

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Rational Electrode-Electrolyte Design for Efficient Ammonia Electrosynthesis under Ambient Conditions

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Metal-Free Single Atom Catalyst for N2 Fixation Driven by Visible Light

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The role of the hydrogen evolution reaction in the solid-electrolyte interphase formation mechanism for Water-in-Salt electrolytes

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Single Mo Atom Supported on Defective Boron Nitride Monolayer as an Efficient Electrocatalyst for Nitrogen Fixation: A Computational Study

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High-Efficiency N2 Electroreduction Enabled by Se-Vacancy-Rich WSe2-x in Water-in-Salt Electrolytes

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