Results 41 to 50 of about 2,564 (186)

Dynamic Etching‐Induced Cl‐Terminated Ti3C2Clx/Ti3ZnC2 Heterostructure for Ammonia Electrosynthesis and Zinc‐Nitrogen Batteries

Advanced Science, EarlyView.
A stable Ti3C2Clx/Ti3ZnC2 heterostructure, fabricated by dynamic etching, exhibits outstanding electrocatalytic NRR activity (NH3 yield: 20.1 µg h−1 mg−1, FE: 38.1%) in alkaline media. The corresponding Zn‐N2 battery achieves a peak power density of 36.5 µW cm−2 and an NH3 yield of 13.1 µg h−1 mg−1, providing an advanced strategy for NH3 and ...
Yu Wang, Ying Sun, Liqun Ye, Jichi Liu, Hui Li, Yang Fu, Fengzhan Sun, Jieshan Qiu, Chang Yu, Tianyi Ma   +9 more
wiley   +1 more source

Advances in Layered Double Hydroxide (LDH)-Based Materials for Electrocatalytic Nitrogen Reduction to Ammonia: A Comprehensive Review

Nitrogen
Nitrogen (N2), constituting the majority of Earth’s atmosphere, remains indispensable for biological systems and underpins modern agriculture and industry.
Sayali S. Kulkarni, Ganesh L. Khande, Jayavant L. Gunjakar, Valmiki B. Koli   +3 more
doaj   +1 more source

Integrating Machine Learning With Constant‐Potential Simulation to Unravel Charge‐Transfer Mechanisms in Electrochemical Nitrogen Fixation

Advanced Science, EarlyView.
Integrating interpretable machine learning with the fixed‐potential method reveals a novel mechanism: the catalytic activity of the electrochemical nitrogen reduction reaction is governed by partial charge transfer, induced by variations in the intermediate potential of zero charge under constant potential.
Yufei Xue, Dushuo Feng, Yuefei Zhang, Yang Zhang, Yalong Jiao, Aijun Du, Guoping Gao   +6 more
wiley   +1 more source

Heterogeneous Fe3 single-cluster catalyst for ammonia synthesis via an associative mechanism

Nature Communications, 2018
The current industrial ammonia synthesis relies on the Haber-Bosch process that is limited by the Brønsted–Evans–Polanyi relation. Here, the authors propose a new strategy that an anchored Fe3 on θ-Al2O3(010) surface serves as a heterogeneous single ...
Jin-Cheng Liu, Xue-Lu Ma, Yong Li, Yang-Gang Wang, Hai Xiao, Jun Li   +5 more
doaj   +1 more source

Bioelectrochemical Haber–Bosch Process: An Ammonia‐Producing H₂/N₂ Fuel Cell

Angewandte Chemie, 2017
AbstractNitrogenases are the only enzymes known to reduce molecular nitrogen (N2) to ammonia (NH3). By using methyl viologen (N,N′‐dimethyl‐4,4′‐bipyridinium) to shuttle electrons to nitrogenase, N2 reduction to NH3 can be mediated at an electrode surface.
Ross D. Milton, Rong Cai, Sofiene Abdellaoui, Dónal Leech, Antonio L. De Lacey, Marcos Pita, Shelley D. Minteer   +6 more
openaire   +3 more sources

Catalytic Performance of Doped Ni₂P Surfaces for Ammonia Synthesis †

Engineering Proceedings, 2023
Ammonia is a key ingredient in fertilizer production, but its synthesis using the conventional Haber–Bosch process over metal-based catalysts is energy intensive.
Abdulrahman Almithn
doaj   +1 more source

Impact of process flexibility and imperfect forecasting on the operation and design of Haber–Bosch green ammonia

RSC Sustainability, 2023
Inability to predict the weather, and to rapidly adjust the operating rate of Haber–Bosch synthesis, are major challenges for green ammonia production. This article assesses and provides methods for managing both challenges.
Nicholas Salmon, René Bañares-Alcántara   +1 more
openaire   +2 more sources

Electrochemical Nitrogen Fixation for Green Ammonia: Recent Progress and Challenges

Advanced Science, 2023
Ammonia, a key feedstock used in various industries, has been considered a sustainable fuel and energy storage option. However, NH3 production via the conventional Haber–Bosch process is costly, energy‐intensive, and significantly contributing to a ...
Haneul Jin, Suyeon S. Kim, Sandhya Venkateshalu, Jeseok Lee, Kwangyeol Lee, Kyoungsuk Jin   +5 more
doaj   +1 more source

Nitric oxide generation from nitrate at the cobalt center

Bulletin of the Korean Chemical Society, EarlyView.
Deoxygenation of a cobalt(II) nitrate complex with CO(g) or PPh3 yields a Co(NO)(NO2) species, which can alternatively be generated from a cobalt mononitrosyl complex, featuring a distinct {CoNO}8 core. Abstract Herein, we report the synthesis and reactivity of the cobalt(II) nitrate complex, (acriPNP)Co(NO3) (2).
Jeewon Chun, Yunho Lee
wiley   +1 more source

An Ambient Photocatalytic Approach to In‐Situ Prepare Cobalt/Cobalt Phosphide and Cobalt/Cobalt Phosphide@Graphene Heterojunction Nanomaterials With Optimized Charge Separation Effects for Highly Efficient Relayed Electrocatalytic NOX− Reduction to NH3

Carbon Energy, EarlyView.
A visible‐light‐driven ambient photocatalytic method in‐situ fabricates Co/CoP‐x and Co/CoP@rGO heterojunction with enhanced charge separation, enabling highly efficient relayed electrocatalytic NOx− reduction to NH3 with outstanding Faraday efficiency and ammonia productivity.
Xin Zhao, Chuanjun Wang, Shenjie Liu, Guoqiang Wang, Jing Dong, Chen Lei, Geoffrey I. N. Waterhouse, Jing Xu   +7 more
wiley   +1 more source