CoO nanoparticle decorated N-doped carbon nanotubes: a high-efficiency catalyst for nitrate 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)

添加到收藏夹

Article Chemistry, Physical

Ni2P nanosheet array for high-efficiency electrohydrogenation of nitrite to ammonia at ambient conditions

Guilai Wen et al.

Summary: Ammonia plays a crucial role in agriculture and industry, but its traditional production methods suffer from environmental pollution and high energy consumption. This study introduces a highly efficient electrocatalyst that can convert nitrite into ammonia at room temperature, achieving high yield rates and selectivity.

JOURNAL OF COLLOID AND INTERFACE SCIENCE (2022)

添加到收藏夹

Article Chemistry, Multidisciplinary

Ambient Ammonia Synthesis via Electrochemical Reduction of Nitrate Enabled by NiCo2O4 Nanowire Array

Qian Liu et al.

Summary: NiCo2O4 nanowire array on carbon cloth (NiCo2O4/CC) is proposed as a highly active electrocatalyst for ambient nitrate (NO3-) reduction to ammonia (NH3). It achieves a high Faradic efficiency of 99.0% and a large NH3 yield up to 973.2 mu mol h(-1) cm(-2). The superior catalytic activity comes from its half-metal feature and optimized adsorption energy due to the existence of Ni in the crystal structure.

SMALL (2022)

添加到收藏夹

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)

添加到收藏夹

Article Materials Science, Multidisciplinary

MnO2 nanoarray with oxygen vacancies: An efficient catalyst for NO electroreduction to NH3 at ambient conditions

Zerong Li et al.

Summary: The study presents a MnO2 nanowire array with oxygen vacancies as a high-active and stable electrocatalyst for NO reduction into NH3. Under specific conditions, this catalyst shows high NH3 yield and Faradic efficiency. Density function theory calculations suggest that the presence of oxygen vacancies enhances NO adsorption on the MnO2-x surface.

MATERIALS TODAY PHYSICS (2022)

添加到收藏夹

Article Chemistry, Physical

N-doped carbon nanotubes supported CoSe2 nanoparticles: A highly efficient and stable catalyst for H2O2 electrosynthesis in acidic media

Longcheng Zhang et al.

Summary: In this study, nitrogen-doped carbon nanotubes were used as a support material for CoSe2 nanoparticles, which led to improved catalytic performance in H2O2 synthesis. The CoSe2@NCNTs hybrid exhibited high selectivity and large yield rate in acidic conditions, showing great potential for practical applications.

NANO RESEARCH (2022)

添加到收藏夹

Article Chemistry, Physical

Ambient ammonia production via electrocatalytic nitrite reduction catalyzed by a CoP nanoarray

Guilai Wen et al.

Summary: In this study, ambient ammonia production via electrochemical nitrite (NO2-) reduction catalyzed by a CoP nanoarray on titanium mesh (CoP NA/TM) is demonstrated. The catalyst showed a high NH3 yield and Faradaic efficiency in alkaline solution, presenting a potential alternative to industrial ammonia production.

NANO RESEARCH (2022)

添加到收藏夹

Article Chemistry, Physical

Three-dimensional porous N-doped graphitic carbon framework with embedded CoO for photocatalytic CO2 reduction

Lang He et al.

Summary: The CoO@N-GC-500 catalyst, prepared by a facile polymer thermal treatment method, exhibits excellent photocatalytic performance for the reduction of CO2 in water, with high yields of CH4 and CO under visible light irradiation. This is attributed to efficient separation of photogenerated electron-hole pairs, large specific surface area, and strong visible light absorption capacity, paving the way for practical applications of CoO catalysts in artificial photosynthesis.

APPLIED CATALYSIS B-ENVIRONMENTAL (2021)

添加到收藏夹

Article Engineering, Environmental

CoO-3D ordered mesoporous carbon nitride (CoO@mpgCN) composite as peroxymonosulfate activator for the degradation of sulfamethoxazole in water

Thanh Binh Nguyen et al.

Summary: The CoO@mpgCN/PMS system showed high catalytic reactivity and SMX removal efficiency over a wide pH range, with stable and consistent degradation capacity for at least five consecutive cycles. The significant catalysis performance was attributed to the uniformly distributed mesopores, large specific surface area, and high electron transfer ability of CoO@mpgCN at the active CoO sites, leading to a radical chain reaction mechanism for SMX degradation.

JOURNAL OF HAZARDOUS MATERIALS (2021)

添加到收藏夹

Article Chemistry, Physical

Increasing electrocatalytic nitrate reduction activity by controlling adsorption through PtRu alloying

Zixuan Wang et al.

Summary: This study demonstrates that the performance of electrocatalysts for nitrate reduction can be tuned by changing the adsorption strength of reacting species through alloying. Pt78Ru22/C alloy shows six times higher activity than Pt/C at 0.1 V vs. RHE, with predicted maximum activity at 25 at% Ru.

JOURNAL OF CATALYSIS (2021)

添加到收藏夹

Review Chemistry, Physical

Recent advances in strategies for highly selective electrocatalytic N-2 reduction toward ambient NH3 synthesis

Qian Liu et al.

Summary: The review summarizes recent progress in strategies for improving NH3 selectivity in the electrochemical N-2 reduction reaction, including electrocatalyst tuning, electrolyte choice, and cell configuration design.

CURRENT OPINION IN ELECTROCHEMISTRY (2021)

添加到收藏夹

Article Nanoscience & Nanotechnology

Synergistic Effect of Co(III) and Co(II) in a 3D Structured Co3O4/Carbon Felt Electrode for Enhanced Electrochemical Nitrate Reduction Reaction

Wenyang Fu et al.

Summary: The study demonstrates that by controlling the calcination temperature, a relatively large amount of Co(II) on the surface of the Co3O4/CF electrode (1.3 Co(II)/Co(III) ratio) can be maintained to promote H* formation and enhance the performance of the ENRR. Therefore, building a 3D structure and optimizing the Co(II)/Co(III) ratio are crucial for designing efficient Co3O4 electrocatalysts for ENRR.

ACS APPLIED MATERIALS & INTERFACES (2021)

添加到收藏夹

Article Nanoscience & Nanotechnology

Monodisperse Cu Cluster-Loaded Defective ZrO2 Nanofibers for Ambient N2 Fixation to NH3

Tingshuai Li et al.

Summary: In this study, monodisperse Cu clusters loaded on defective ZrO2 nanofibers were used as an electrocatalyst for nitrogen reduction, achieving high NH3 yield rate and optimal Faradaic efficiency. Density functional theory calculations revealed that N-2 molecule was reduced to NH3 at Cu active site with an ideal overpotential. The interaction between bonding and antibonding of Cu-N bond promoted activation of N-2 and maintained a low desorption barrier.

ACS APPLIED MATERIALS & INTERFACES (2021)

添加到收藏夹

Article Chemistry, Multidisciplinary

High-Performance Electrochemical NO Reduction into NH3 by MoS2 Nanosheet

Longcheng Zhang et al.

Summary: MoS2/GF nanosheet on graphite felt shows promising catalytic performance in electrochemical reduction of NO for NH3 production, offering a potential environmentally friendly and efficient approach for nitrogen cycle restoration.

ANGEWANDTE CHEMIE-INTERNATIONAL EDITION (2021)

添加到收藏夹

Article Chemistry, Physical

YF3: a nanoflower-like catalyst for efficient nitrogen fixation to ammonia under ambient conditions

Tingshuai Li et al.

Summary: This study reports nanoflower-like yttrium fluoride as a high-efficiency electrocatalyst for the synthesis of ammonia under mild conditions. The catalyst exhibits good ammonia yield rate and faradaic efficiency, along with excellent selectivity and stability. Density functional theory calculations reveal the mechanism of electron transfer and N-2 molecule activation in promoting H atom adsorption.

CATALYSIS SCIENCE & TECHNOLOGY (2021)

添加到收藏夹

Article Chemistry, Multidisciplinary

High-efficiency nitrate electroreduction to ammonia on electrodeposited cobalt-phosphorus alloy film

Zerong Li et al.

Summary: The study demonstrated the use of a Ti plate supported cobalt-phosphorus alloy film as a highly active and selective electrocatalyst for the conversion of nitrate to ammonia. The catalyst showed high NH3 yield rate, Faradaic efficiency, and durability under experimental conditions.

CHEMICAL COMMUNICATIONS (2021)

添加到收藏夹

Article Chemistry, Multidisciplinary

High lithium storage performance of CoO with a distinctive dual-carbon-confined nanoarchitecture

Yanbin Chen et al.

Summary: The study demonstrated a distinctive dual-carbon-confined nanoarchitecture composed of a highly conductive carbon nanotube support and a porous carbon coating, which efficiently improved the electrochemical properties of CoO nanoparticles. The synergistic effects of the CNT core and the porous carbon sheath resulted in improved electrochemical reaction kinetics and structural stability of the composite material.

NANOSCALE (2021)

添加到收藏夹

Article Chemistry, Multidisciplinary

An amorphous WC thin film enabled high-efficiency N2 reduction electrocatalysis under ambient conditions

Shaoxiong Li et al.

Summary: The study proposes a new method for environmentally friendly NH3 synthesis in aqueous media and investigates a highly efficient NRR electrocatalyst. The catalyst shows high NH3 yield and faradaic efficiency, as well as excellent selectivity and durability for NH3 formation.

CHEMICAL COMMUNICATIONS (2021)

添加到收藏夹

Review Chemistry, Multidisciplinary

Nitrate electroreduction: mechanism insight, in situ characterization, performance evaluation, and challenges

Yuting Wang et al.

Summary: Excessive nitrate ions in the environment pose a significant threat to human health by disrupting the natural nitrogen cycle. Nitrate electroreduction, utilizing green electrons as reductants, shows promise due to its ability to operate under ambient conditions. Understanding the nitrate reaction mechanism is crucial for designing efficient electrocatalysts for selective nitrate reduction.

CHEMICAL SOCIETY REVIEWS (2021)

添加到收藏夹

Article Chemistry, Physical

Electrospun zirconia nanofibers for enhancing the electrochemical synthesis of ammonia by artificial nitrogen fixation

Jiaojiao Xia et al.

Summary: This study introduces electrospun zirconia nanofibers as a non-noble NRR electrocatalyst for converting nitrogen to ammonia. Theoretical calculations suggest that Zr sites with oxygen vacancies are favorable for nitrogen adsorption and reduction. Experimental results show a high NH3 formation rate and optimal faradaic efficiency in 0.1 M Na2SO4 at -0.7 V vs. the reversible hydrogen electrode.

JOURNAL OF MATERIALS CHEMISTRY A (2021)

添加到收藏夹

Review Engineering, Environmental