Enhanced electrocatalytic nitrite reduction to ammonia over P-doped TiO2 nanobelt array

Article Chemistry, Multidisciplinary

A TiO2-x nanobelt array with oxygen vacancies: an efficient electrocatalyst toward nitrite conversion to ammonia

Donglin Zhao et al.

Summary: This study reports that a TiO2-x nanobelt array with oxygen vacancies can convert nitrite into ammonia with high electrocatalytic efficiency and yield in alkaline solution.

CHEMICAL COMMUNICATIONS (2022)

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Article Chemistry, Multidisciplinary

Boosting electrochemical nitrite-ammonia conversion properties by a Cu foam@Cu2O catalyst

Qiuyue Chen et al.

Summary: In this study, Cu2O particles self-supported on Cu foam with enriched oxygen vacancies were developed as efficient catalysts for selective reduction of nitrite to ammonia. The catalyst exhibited a high NH3 yield rate and Faradaic efficiency under experimental conditions, providing a new approach for rational design of Cu-based catalysts for NH3 electrosynthesis.

CHEMICAL COMMUNICATIONS (2022)

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Article Chemistry, Multidisciplinary

Recent advances in electrocatalytic nitrite reduction

Xi Zhang et al.

Summary: This review highlights the recent progress and applications of electrochemical nitrite reduction, including the preparation of gaseous and liquid products, catalyst selection, and understanding of reaction mechanisms. The challenges and opportunities in this field are analyzed as well.

CHEMICAL COMMUNICATIONS (2022)

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Article Chemistry, Inorganic & Nuclear

Ambient electrochemical N2-to-NH3 conversion catalyzed by TiO2 decorated juncus effusus-derived carbon microtubes

Haijun Chen et al.

Summary: In this study, a hybrid catalyst of TiO2 and juncus effusus-derived carbon microtubes with a three-dimensional cross-linked hollow tubular structure is proposed for efficient electrocatalytic conversion of N-2 to NH3 at ambient conditions. The catalyst shows a high NH3 yield and faradaic efficiency in 0.1M Na2SO4, along with superior electrochemical and structural stability.

INORGANIC CHEMISTRY FRONTIERS (2022)

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Article Chemistry, Multidisciplinary

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

Peng Shen et al.

Summary: Combining catalyst and electrolyte engineering, a high-efficiency electrocatalytic nitrogen reduction reaction (NRR) is achieved using a Se-vacancy-rich WSe2-x catalyst in water-in-salt electrolyte (WISE), which suppresses H2 evolution, improves N2 affinity, and enhances active site pi-back-donation ability for promoting both activity and selectivity of NRR. The WSe2-x in 12m LiClO4 exhibits excellent faradaic efficiency and NH3 yield, among the highest reported to date.

ACS NANO (2022)

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Article Engineering, Environmental

Fe doped InVO4 nanosheets with rich surface oxygen vacancies for enhanced electrochemical nitrogen fixation

Jiadong Li et al.

Summary: This research demonstrates the effective modulation of the electronic structure of InVO4 nanosheets through Fe doping, which generates abundant oxygen vacancies and significantly enhances the electrochemical N-2 reduction performance with high selectivity.

CHEMICAL ENGINEERING JOURNAL (2022)

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Article Chemistry, Physical

Cu nanoparticles decorated juncus-derived carbon for efficient electrocatalytic nitrite-to-ammonia conversion

Ling Ouyang et al.

Summary: This work proposes a high-active catalyst, Cu nanoparticles decorated juncus-derived carbon, for the conversion of nitrite to ammonia, achieving high Faradaic efficiency and satisfactory yield. The study also provides insightful understanding of the internal catalytic mechanism through computational calculations.

JOURNAL OF COLLOID AND INTERFACE SCIENCE (2022)

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Review Engineering, Chemical

Electrocatalytic green ammonia production beyond ambient aqueous nitrogen reduction

Dazhi Yao et al.

Summary: Ammonia is the second highest produced chemical in the world and is used for fertilizer production and as a carrier for renewable energy. The current production process for ammonia has high energy consumption, emissions, and capital investment, leading to the need for efficient alternatives. Electrocatalysis technologies, particularly the nitrogen reduction reaction, have great potential but face intrinsic limitations. This review discusses the roadmap towards green ammonia and explores emerging strategies beyond conventional catalyst design and engineering.

CHEMICAL ENGINEERING SCIENCE (2022)

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Article Chemistry, Physical

Enhanced N2-to-NH3 conversion efficiency on Cu3P nanoribbon electrocatalyst

Qian Liu et al.

Summary: Cu3P nanoribbon is proposed as a highly efficient electrocatalyst for the conversion of nitrogen to ammonia. It shows excellent catalytic performance and stability under benign conditions and achieves high Faradaic efficiency and large yield.

NANO RESEARCH (2022)

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Article Chemistry, Physical

Synergistic activation of sulfate by TiO2 nanotube arrays-based electrodes for berberine degradation: Insight into pH-dependant ORR-strengthened reactive radicals co-generation mechanism

Guoquan Zhang et al.

Summary: An anodic oxidation-cathodic ORR coupling system based on TiO2 nanotube array (TNAs) electrodes was established. The pH-dependent ORR process was found to enhance synergistic sulfate activation and reactive radicals co-generation mechanism, providing a multi-radical joint-attack mechanism for the pre-treatment or pointsource-treatment of sulfate-containing refractory organics wastewater.

APPLIED CATALYSIS B-ENVIRONMENTAL (2022)

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Article Chemistry, Inorganic & Nuclear

Plasma-etched Ti2O3 with oxygen vacancies for enhanced NH3 electrosynthesis and Zn-N2 batteries

Hai-jun Chen et al.

Summary: In this study, a novel electrocatalyst, OV-Ti2O3, was reported for sustainable NH3 production. OV-Ti2O3 exhibited outstanding N-2 fixation performance in experiments and showed excellent performance in the assembled Zn-N-2 battery.

INORGANIC CHEMISTRY FRONTIERS (2022)

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Article Electrochemistry

ITO@TiO2 nanoarray: An efficient and robust nitrite reduction reaction electrocatalyst toward NH3 production under ambient conditions

Shaoxiong Li et al.

Summary: The study reports a three-dimensional catalyst for the reduction of NO2- to produce NH3, demonstrating high activity, excellent selectivity, and durability.

ESCIENCE (2022)

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Article Chemistry, Multidisciplinary

A Zn-nitrite battery as an energy-output electrocatalytic system for high-efficiency ammonia synthesis using carbon-doped cobalt oxide nanotubes

Rong Zhang et al.

Summary: In this study, a Zn-NO2- battery with electrocatalytic properties was developed, which can simultaneously degrade NO2-, produce NH3, and generate electricity. Nanoparticle-assembled carbon-doped cobalt oxide hollow nanotubes showed high efficiency for the NO2- reduction reaction, improving the energy conversion rate of NH3 production. This research not only provides a new approach for sustainable energy supply and NH3 electrosynthesis but also offers an attractive electrocatalytic method for the degradation of NO2- pollutants in wastewater.

ENERGY & ENVIRONMENTAL SCIENCE (2022)

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Article Chemistry, Multidisciplinary

Modulating Oxygen Vacancies of TiO2 Nanospheres by Mn-Doping to Boost Electrocatalytic N2 Reduction

Haijun Chen et al.

Summary: TiO2 serves as an active NRR electrocatalyst, and heteroatom doping can enhance its activity to achieve high NH3 yield rate and high Faradaic efficiency.

ACS SUSTAINABLE CHEMISTRY & ENGINEERING (2021)

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Article Chemistry, Multidisciplinary

Efficient Nitrogen Fixation to Ammonia through Integration of Plasma Oxidation with Electrocatalytic Reduction

Laiquan Li et al.

Summary: The process of converting N-2 to NH3 can be decoupled into a two-step process for efficient and selective ammonia production, utilizing air and water as low-cost raw materials. Surface boron-rich nickel boride electrocatalyst plays a key role in enhancing activity, selectivity, and stability, resulting in significant ammonia production with nearly 100% Faradaic efficiency.

ANGEWANDTE CHEMIE-INTERNATIONAL EDITION (2021)

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Article Chemistry, Physical

Plasma-induced defective TiO2- x with oxygen vacancies: A high-active and robust bifunctional catalyst toward H2O2 electrosynthesis

Kai Dong et al.

Summary: Achieving high selectivity and production efficiency in electrocatalytic H2O2 production has been a long-sought goal. This study demonstrates a high-efficiency H2O2 generation system based on a plasma-induced defective TiO2-x nanocatalyst, enabling ultrahigh H2O2 yield rate and remarkable cell Faradaic efficiency through a WOR-ORR coupling strategy. The results suggest that oxygen vacancies and surface distortions play key roles in enhancing ORR and WOR performance.

CHEM CATALYSIS (2021)

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Article Chemistry, Multidisciplinary

A hybrid plasma electrocatalytic process for sustainable ammonia production

Jing Sun et al.

Summary: The research team successfully developed a non-thermal plasma bubble column reactor to convert NOx intermediaries into ammonia at ambient conditions. Their innovative approach combines plasma-driven nitrogen oxides generation with electrocatalytic reduction for scalable green ammonia production.

ENERGY & ENVIRONMENTAL SCIENCE (2021)

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Article Chemistry, Physical