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Chemistry, Multidisciplinary
Lulu Wen et al.
Summary: In this study, PdCu nanoparticles were encapsulated into a sulfonate functionalized metal-organic framework, UiO-66-SO3H, and their microenvironment was further modified by coating a hydrophobic polydimethylsiloxane (PDMS) layer. The resulting PdCu@UiO-S@PDMS catalyst exhibited high activity towards electrochemical nitrogen reduction reaction (NRR), surpassing other counterparts. Experimental and theoretical results revealed that the protonated and hydrophobic microenvironment provided protons for NRR and suppressed the competitive hydrogen evolution reaction, while the electron-rich PdCu sites favored the formation of the N2H* intermediate and reduced the energy barrier of NRR, contributing to its excellent performance.
ADVANCED MATERIALS
(2023)
Review
Materials Science, Multidisciplinary
Fangzhou Zhang et al.
Summary: Recently, there has been a significant increase in demand for high-efficiency electrocatalysts for advanced energy conversion systems. One-dimensional fiber materials are considered promising electrode materials due to their excellent mechanical strength, large surface area, high electrical conductivity, compositional/morphological tunability, and structural stability. This article provides a detailed description of the design and synthesis of fiber-based electrocatalysts, including supportive fibers for catalyst loading and electrocatalytic fibers containing intrinsic active sites. The precise control of these architectures for specific electrocatalytic reactions and the future challenges and research directions of fiber materials for real-world energy conversion applications are discussed.
PROGRESS IN MATERIALS SCIENCE
(2023)
Article
Chemistry, Multidisciplinary
Hui Zhang et al.
Summary: This study reports a graphene-nanochainmail-protected iron nanoparticle (Fe@Gnc) electrocatalyst, which exhibits superior nitrate removal efficiency and high nitrogen selectivity, along with exceptional stability and durability. The conductive graphene nanochainmail effectively protects the internal iron active sites, allowing Fe@Gnc to maintain its long-lasting electrochemical nitrate catalytic activity.
ANGEWANDTE CHEMIE-INTERNATIONAL EDITION
(2023)
Article
Chemistry, Physical
Gabriel Antonio Cerron-Calle et al.
Summary: Bimetallic Cu-Pt foam electrodes show promise in treating contaminated water sources with nitrate, achieving sustainable ammonia recovery with high selectivity and low energy consumption.
APPLIED CATALYSIS B-ENVIRONMENTAL
(2022)
Article
Engineering, Environmental
Zhimin Song et al.
Summary: In this study, a porous carbon material with oxygen-containing groups was developed to enhance the yield rate and Faradaic efficiency of nitrogen electroreduction to ammonia. The introduction of oxygen-containing groups effectively lowered the energy barrier of hydrogenation and suppressed the competing hydrogen evolution reaction, thereby promoting nitrogen electroreduction to ammonia.
CHEMICAL ENGINEERING JOURNAL
(2022)
Article
Engineering, Environmental
Chunhong Fu et al.
Summary: This study reports that CuPd alloy nanowires with tuned bimetallic composition can achieve a high N-2 product selectivity of 75.9% in the selective electrocatalytic nitrate reduction reaction. The key surface atomic structure for N-2 formation is revealed, and a guideline for the design of efficient NO3RR catalysts is provided.
CHEMICAL ENGINEERING JOURNAL
(2022)
Article
Nanoscience & Nanotechnology
Feng-Yang Chen et al.
Summary: The research team has efficiently converted nitrate, a common pollutant in wastewater and groundwater, into valuable ammonia products using a Ru-dispersed Cu nanowire catalyst through electrochemical methods. This sustainable approach not only treats wastewater but also generates ammonia, but current low catalytic activities pose challenges. However, the team has developed a high-performance catalyst that achieves over 99% nitrate conversion into ammonia and successfully obtains high purity NH4Cl solid and NH3 liquid products.
NATURE NANOTECHNOLOGY
(2022)
Article
Multidisciplinary Sciences
Qiang Gao et al.
Summary: Machine learning is a powerful tool for screening electrocatalytic materials. In this study, the authors integrated machine-learned physical insights with the synthesis of structurally ordered intermetallic nanocrystals to achieve efficient nitrate reduction to ammonia. They discovered that breaking adsorption-energy scaling relations through site-specific Pauli repulsion interactions allows for non-scaling behavior in ordered intermetallics. The authors also synthesized CuPd nanocubes with high performance for nitrate reduction to ammonia.
NATURE COMMUNICATIONS
(2022)
Article
Chemistry, Physical
Nikifar Lazouski et al.
Summary: This study investigates the influence of proton donor selection and concentration on ammonia production in lithium-mediated electrochemical nitrogen reduction reaction (LM-NRR). The research finds that alcohols can promote nitrogen reduction, with n-butanol exhibiting the highest ammonia Faradaic efficiency. Additionally, slight changes in proton donor structure significantly affect ammonia yield, and there is a thresholding behavior regarding the selectivity of ammonia depending on proton donor concentration.
Article
Chemistry, Physical
Yali Ji et al.
Summary: In this study, a novel copper-palladium intermetallic compound catalyst was developed to enhance the hydrogenation reduction of carbon monoxide, thereby promoting the formation of acetate. The catalyst exhibited high selectivity and efficiency for acetate production, and demonstrated good performance in long-term stability tests.
Article
Chemistry, Multidisciplinary
Zhimin Song et al.
Summary: A Cu-based catalyst, Cu@C, is developed for the electroreduction of nitrate at ultralow concentrations, achieving high Faradaic efficiency and NH3 yield rate. The mechanism involves concentration of NO3- enabled by the porous carbon framework, facilitating efficient electroreduction into NH3.
ADVANCED MATERIALS
(2022)
Article
Multidisciplinary Sciences
Kui Fan et al.
Summary: This study presents a hollow cobalt phosphide nanosphere electrocatalyst assembled on a self-supported carbon nanosheet array for electrochemical nitrate reduction to ammonia. The catalyst exhibits an extremely high ammonia yield rate and a high Faradaic efficiency, achieved through the dynamic equilibrium between the generation of active hydrogen and its consumption by nitrogen intermediates. This insight provides new opportunities for large-scale ammonia production and carbon dioxide capture through electrochemical techniques.
NATURE COMMUNICATIONS
(2022)
Article
Chemistry, Multidisciplinary
Lili Han et al.
Summary: The work introduces a catalyst with diatomic Pd-Cu sites on N-doped carbon to address the challenges in electrochemical reduction of N-2 to NH3, achieving high Faradaic efficiency and desirable NH3 yield rate. The research opens up a pathway for engineering single-atom-based electrocatalysts for enhanced ammonia electrosynthesis.
ANGEWANDTE CHEMIE-INTERNATIONAL EDITION
(2021)
Review
Engineering, Environmental
Xi Zhang et al.
Summary: This review highlights the latest research progress in non-noble metal materials for electrochemical nitrate reduction, discussing mechanistic insights and strategies for improving performance.
CHEMICAL ENGINEERING JOURNAL
(2021)
Editorial Material
Chemistry, Physical
Phebe H. van Langevelde et al.
Summary: Phebe van Langevelde, Ioannis Katsounaros, and Marc Koper are renowned researchers in the field of electrocatalysis and renewable energy. Their research interests span from fundamental aspects of electrocatalysis to physical electrochemistry and theoretical electrochemistry. They have received various national and international awards for their contributions to the field.
Article
Chemistry, Multidisciplinary
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)
Article
Chemistry, Multidisciplinary
Wu-Ji Sun et al.
Summary: The built-in electric field in the electrocatalyst significantly accumulates NO3- ions and lowers the energy of reaction intermediates, leading to efficient nitrate removal and NH3 production. The CuCl (111) and rutile TiO2 (110) electrocatalyst shows the best performance among reported studies at 100 mg L-1 of nitrate concentration.
ANGEWANDTE CHEMIE-INTERNATIONAL EDITION
(2021)
Article
Chemistry, Multidisciplinary
You Xu et al.
Summary: By rationally choosing Pd as an active metal and Cu as a promoting metal, Cu-rich CuPd bimetallic aerogels were developed as a self-supported electrocatalyst for nitrate electroreduction. The spongy aerogel structure provides abundant catalytically active sites, and the synergistic benefit of the CuPd binary composition increases their reactivity, aiding in efficient nitrate-to-ammonia conversion.
CHEMICAL COMMUNICATIONS
(2021)
Article
Chemistry, Multidisciplinary
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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Yuhang Wang et al.
JOURNAL OF THE AMERICAN CHEMICAL SOCIETY
(2020)
Review
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Geletu Qing et al.
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Jie Li et al.
JOURNAL OF THE AMERICAN CHEMICAL SOCIETY
(2020)
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Tonghe Zhu et al.
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Sisi Liu et al.
NATURE COMMUNICATIONS
(2019)
Editorial Material
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Shelley D. Minteer et al.
ACS ENERGY LETTERS
(2019)
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Bryan H. R. Suryanto et al.
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Miao-Miao Shi et al.
ADVANCED ENERGY MATERIALS
(2018)
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Yasunori Inoue et al.
Review
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Cornelis J. M. van der Ham et al.
CHEMICAL SOCIETY REVIEWS
(2014)
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Timur Kandemir et al.
ANGEWANDTE CHEMIE-INTERNATIONAL EDITION
(2013)