V-doped TiO2 nanobelt array for high-efficiency electrocatalytic nitrite reduction to ammonia

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

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, 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

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 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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Article Chemistry, Physical

Flower-like open-structured polycrystalline copper with synergistic multi-crystal plane for efficient electrocatalytic reduction of nitrate to ammonia

Yaling Zhao et al.

Summary: In this study, an open-structured catalyst with polycrystalline copper nanoparticles loaded on carbon fiber papers has been prepared by a simple method, achieving high efficiency and selectivity in nitrate reduction to ammonia. The optimal sample exhibited excellent reduction performance in a neutral solution.

NANO ENERGY (2022)

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Article Chemistry, Physical

Nitrite reduction over Ag nanoarray electrocatalyst for ammonia synthesis

Qian Liu et al.

Summary: In this study, an efficient electrocatalyst consisting of Ag nanoarray and NiO nanosheets array on carbon cloth as support was reported for the selective reduction of nitrite to ammonia. The catalyst exhibited high ammonia yield and Faradaic efficiency in alkaline solution.

JOURNAL OF COLLOID AND INTERFACE SCIENCE (2022)

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Article Nanoscience & Nanotechnology

Ambient Electroreduction of Nitrite to Ammonia over Ni Nanoparticle Supported on Molasses-Derived Carbon Sheets

Xun He et al.

Summary: In this study, Ni nanoparticles supported on molasses-derived carbon sheets were reported as an electrocatalyst for the reduction of NO2- to NH3. The electrocatalyst exhibited high NH3 yield and remarkable electrochemical stability in alkaline solutions.

ACS APPLIED NANO MATERIALS (2022)

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Article Chemistry, Physical

Heterointerface-triggered electronic structure reformation: Pd/CuO nano-olives motivate nitrite electroreduction to ammonia

Songliang Liu et al.

Summary: This study reports the synthesis of porous-rich Pd/CuO nano-olives with heterointerfaces for efficient electrochemical nitrite reduction reaction (NO2-RR) to synthesize NH3. The porous structure provides abundant channels for molecular permeation and increases the accessible active sites, while the heterointerfaces adjust the electronic structure and optimize the adsorption for improved performance.

APPLIED CATALYSIS B-ENVIRONMENTAL (2022)

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Article Chemistry, Physical

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

Ling Ouyang et al.

Summary: Electrochemical nitrite reduction provides an environmentally friendly method for removing hazardous NO2- and synthesizing sustainable NH3. A P-doped TiO2 nanobelt array supported on titanium plate (P-TiO2/TP) acts as a highly efficient electrocatalyst for the reduction of NO2-, achieving a satisfactory faradaic efficiency of 90.6% and a large NH3 yield of 560.8 mu mol h(-1) cm(-2), surpassing pristine TiO2/TP. In addition, the catalytic mechanism is also revealed through theoretical calculations.

JOURNAL OF MATERIALS CHEMISTRY A (2022)

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Article Chemistry, Inorganic & Nuclear

Amorphous CoB nanoarray as a high-efficiency electrocatalyst for nitrite reduction to ammonia

Long Hu et al.

Summary: In this study, an amorphous CoB supported on TiO2 nanoarray was found to be an efficient catalyst for NH3 synthesis through electrochemical reduction of NO2-. It exhibited outstanding yield and high faradaic efficiency.

INORGANIC CHEMISTRY FRONTIERS (2022)

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Article Chemistry, Physical

Ambient N2-to-NH3 fixation over a CeO2 nanoparticle decorated three-dimensional carbon skeleton

Chengchen Liu et al.

Summary: In this study, a CeO2 nanoparticle decorated three-dimensional carbon skeleton derived from Juncus was proposed as an active and stable electrocatalyst for N-2-to-NH3 conversion. The nanohybrid showed a high NH3 yield and favorable durability.

SUSTAINABLE ENERGY & FUELS (2022)

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Review Materials Science, Multidisciplinary

Green Synthesis of Nitrogen-to-Ammonia Fixation: Past, Present, and Future

Jianyun Zheng et al.

Summary: The text gives an overview of the development of nitrogen-to-ammonia synthesis driven by renewable energy and discusses the current challenges and potential solutions for the low NH3 yield rate in nitrogen reduction reactions by green methods.

ENERGY & ENVIRONMENTAL MATERIALS (2022)

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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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Review Chemistry, Multidisciplinary

Main-group elements boost electrochemical nitrogen fixation

Laiquan Li et al.

Summary: In this review, we critically evaluate the application of main-group elements in electrocatalytic nitrogen reduction, present methodologies for N2 activation and HER suppression, and demonstrate the potential of MGEs-based mechanisms for smart design. The conclusion shows that MGEs can significantly enhance electrochemical N2 fixation.

CHEM (2021)

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Article Chemistry, Multidisciplinary

Graphite Conjugation of a Macrocyclic Cobalt Complex Enhances Nitrite Electroreduction to Ammonia

Sarah E. Braley et al.

Summary: This work presents a graphite-conjugated diimine macrocyclic Co catalyst that efficiently reduces nitrite to ammonium on graphitic carbon electrodes. Compared to the molecular analogue, this catalyst exhibits a higher reaction rate and may involve a different reaction mechanism.

JOURNAL OF THE AMERICAN CHEMICAL SOCIETY (2021)

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Article Chemistry, Applied

La-doped TiO2 nanorods toward boosted electrocatalytic N2-to-NH3 conversion at ambient conditions

Li Li et al.

Summary: The development of La-doped TiO2 nanorods as an efficient NRR electrocatalyst for ambient NH3 synthesis has resulted in high NH3 yield and Faradaic efficiency, outperforming previous La- and Ti-based catalysts.

CHINESE JOURNAL OF CATALYSIS (2021)

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Article Chemistry, Multidisciplinary

Electrochemical nitrogen reduction: recent progress and prospects

Debabrata Chanda et al.

Summary: Ammonia is a key chemical in the fertilizer industry and a promising energy carrier for fuel cell applications, with efforts to find sustainable alternatives to traditional production methods. The electrochemical nitrogen reduction reaction (ENRR) is seen as a green alternative to the energy-intensive Haber-Bosch process, but challenges remain in the lack of highly efficient and cheap catalysts. Understanding catalyst activity, selectivity, and stability, as well as the mechanism of the ENRR process, is crucial for improving its efficiency.

CHEMICAL COMMUNICATIONS (2021)

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Article Chemistry, Multidisciplinary

Pd doping-weakened intermediate adsorption to promote electrocatalytic nitrate reduction on TiO2 nanoarrays for ammonia production and energy supply with zinc-nitrate batteries

Ying Guo et al.

Summary: This study presents a highly efficient Pd-doped TiO2 nanoarray electrode for ammonia production through nitrate electroreduction, achieving high yields and selectivity. By introducing Pd, the adsorption abilities of intermediates were weakened, leading to record-high NH3 yield, NH3 FE, and nitrate conversion.

ENERGY & ENVIRONMENTAL SCIENCE (2021)

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Review Chemistry, Multidisciplinary

Recent advances in TiO2-based catalysts for N2 reduction reaction

Jiayin Chen et al.

Summary: This review summarizes recent advances in the fabrication of high-performance TiO2-based materials for N-2 reduction reaction (NRR) under mild conditions, including electrocatalytic and photocatalytic NRR. The design principles, synthetic strategies, and corresponding chemical/physical properties of TiO2-based NRR catalysts are described in detail. Moreover, the key challenges and potential opportunities in this field are presented and discussed.

SUSMAT (2021)

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Article Chemistry, Physical

Integrated selective nitrite reduction to ammonia with tetrahydroisoquinoline semi-dehydrogenation over a vacancy-rich Ni bifunctional electrode

Changhong Wang et al.

Summary: In this study, Ni nanosheet arrays with Ni vacancies exhibited outstanding electrocatalytic performances towards selective nitrite reduction to ammonia and semi-dehydrogenation of tetrahydroisoquinolines. The decrease in electronic cloud density induced by the Ni vacancies improved NO2- adsorption and NH3 desorption, leading to high performance in nitrite-to-ammonia conversion. Additionally, a bifunctional two-electrode electrolyzer was constructed for simultaneous production of ammonia and dihydroisoquinoline with robust stability and high selectivity.

JOURNAL OF MATERIALS CHEMISTRY A (2021)

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Article Chemistry, Physical