Results 41 to 50 of about 275,793 (312)

Ammonia Synthesis by Mechanochemistry

ChemCatChem, 2023
AbstractThe design and use of organic, inorganic, and metal‐based catalysts is critical to academic and industrial laboratories all around the world. In this framework, ammonia production embodies the most iconic use of catalysis. This review aims to describe the most recent and exciting developments in the mechanocatalytic preparation of ammonia.
Federico Cuccu, Duncan L. Browne, Andrea Porcheddu   +2 more
openaire   +3 more sources

Emission characteristics and operational stability of an industrial-scale pure-ammonia ceramic kiln under long-term operation

Applications in Energy and Combustion Science
This study presents a long-term (3-month) industrial demonstration of pure ammonia (NH3) as the sole fuel in a 150-meter long and 1.6-meter-wide ceramic roller kiln for continuous tile production.
Xuren Zhu, Congwen Gong, Jianguo Du, Zhou Yu, Liuhao Ma, Jiwei Zhou, Shiping Jin, Zhihao Yang, Libiao Xiao, Qikang Zhang, Yijun Liu, Xiru Cheng, Shouyan Zhu, Guoqing Xie, Shaohua Huang, Zhenming Meng, Shanjun Ke, Yu Wang, Yi-Bing Cheng   +18 more
doaj   +1 more source

Moderately Reconstructed Ternary Metal Nitride Nanoparticles for Highly Efficient and Robust Freshwater and Seawater Oxidation under Industrial Current Density

Small Structures
Transition metal nitrides (TMNs) electrocatalysts experience rapid performance degradation during oxygen evolution reaction (OER) due to severe and irreversible electrochemical reconstruction, impeding their practical application in electrochemical water
Shihao Wang, Hongfei Pan, Yadong Wang, Haolin Tang, Haining Zhang   +4 more
doaj   +1 more source

Effect of Thiols for Nitrogen Reduction to Ammonia [PDF]

, 2019
Ammonia is an important chemical used for fertilizers and also a potential carbon-free hydrogen storage medium. The Haber-Bosch process is the main production process, which requires large energy- and capital-input. Therefore, it is crucial to develop an
Ford, Zakary R.
core   +2 more sources

Recent progress towards the electrosynthesis of ammonia from sustainable resources [PDF]

, 2017
Ammonia (NH3) is a key commodity chemical of vital importance for fertilisers. It is made on an industrial scale via the Haber Bosch process, which requires significant infrastructure to be in place such that ammonia is generally made in large ...
Shipman, Michael A., Symes, Mark D.
core   +1 more source

β‐Catenin/c‐Myc Axis Modulates Autophagy Response to Different Ammonia Concentrations

Advanced Biology, Volume 9, Issue 3, March 2025.
Ammonia, detoxified by the liver into urea and glutamine, impacts autophagy differently at varying levels. Low ammonia activates autophagy via c‐Myc and β‐catenin, while high levels suppress it. Using Huh7 cells and Spf‐ash mice, c‐Myc's role in cytoprotective autophagy is revealed, offering insights into hyperammonemia and potential therapeutic ...
S. Sergio, B. Spedicato, G. Corallo, A. Inguscio, M. Greco, D. Musarò, D. Vergara, A. F. Muro, G. De Sabbata, L. R. Soria, N. Brunetti Pierri, M. Maffia   +11 more
wiley   +1 more source

Structurally Tunable Graphitized Mesoporous Carbon for Enhancing the Accessibility and Durability of Cathode Pt‐Based Catalysts for Proton Exchange Membrane Fuel Cells

Small Science
Low Pt utilization and intense carbon corrosion of cathode catalysts is a crucial issue for high‐efficiency proton exchange membrane fuel cells due to the highly demanded long‐term durability and less acquisition/application cost.
Mingjuan Wu, Zihan Meng, Yifei Xiong, Haining Zhang, Aojie Zhang, Hao Zhang, Liyan Zhu, Haibo Tang, Tian Tian, Haolin Tang   +9 more
doaj   +1 more source

Solid solution for catalytic ammonia synthesis from nitrogen and hydrogen gases at 50 °C

Nature Communications, 2020
Ammonia synthesis via the Haber–Bosch process typically takes place at an elevated temperature in order to achieve a reasonable rate. Here the authors report on a CaFH solid solution with low activation energy for catalytic ammonia synthesis at lower ...
Masashi Hattori, Shinya Iijima, Takuya Nakao, Hideo Hosono, Michikazu Hara   +4 more
doaj   +1 more source

Synthesis and characterization of iron and iron nitride microtubes obtained from biogenic iron oxide [PDF]

, 2017
With the aim to obtain iron tubular microstructures attractive for various applications, we have used a natural biogenic iron ochre as a raw material and explore various procedures and experimental conditions to achieve our goal. Our experiments included
Hargreaves, J.S.J., Rico, J.L.
core   +1 more source

In Situ Constructed Magnetic Core‐Shell Hydrogen‐Bonded Organic Framework‐on‐Metal–Organic Framework Structure: an Efficient Catalyst for Peroxymonosulfate Activation

Advanced Functional Materials, EarlyView.
In this work, a magnetic core‐shell catalyst (HOF‐on‐Fe3O4/ZIF‐67) is successfully synthesized, consisting of a metal–organic framework (ZIF‐67) with magnetic Fe3O4 as the core and a porous hydrogen‐bonded organic framework (HOF) as the shell. The catalyst efficiently activated peroxymonosulfate, resulting in rapid and effective removal of water ...
Yingying Du, Chenhui Ding, Chao Deng, Susanta Banerjee, Seema Agarwal   +4 more
wiley   +1 more source