Results 71 to 80 of about 2,564 (186)

An Efficient Technique for Ammonia Capture in the Haber-Bosch Process Loop-Membrane-Assisted Gas Absorption. [PDF]

Polymers (Basel), 2022
Petukhov AN, Atlaskin AA, Smorodin KA, Kryuchkov SS, Zarubin DM, Atlaskina ME, Petukhova AN, Stepakova AN, Golovacheva AA, Markov AN, Stepanova EA, Vorotyntsev AV, Vorotyntsev IV.   +12 more
europepmc   +1 more source

In situ mapping of iron oxidation in laminar metal fuel flames using X‐ray absorption spectroscopy

Journal of Synchrotron Radiation, EarlyView.
For the first time an iron metal flame has been mapped by in situ X‐ray absorption spectroscopy. Strong gradients in oxidation state and phase composition across the metallic core and the flame front were found with FeO peaking at the visible flame front and Fe3O4 forming further beyond.Metal fuels such as iron are promising carbon‐free energy carriers
Lukas Braun, Fabian P. Hagen, Michal Fedoryk, Malte Seitz, Björn Stelzner, Dimosthenis Trimis, Jan-Dierk Grunwaldt, Dmitry E. Doronkin   +7 more
wiley   +1 more source

Chemical Sites as Catalysts for the Transition to a Circular Economy

Swiss Journal of Business
The chemical industry, often referred to as the “industry of industries”, plays a crucial role in the Circular Economy, an economic model aimed at closing material loops and minimizing harmful environmental impacts.
Gerhardt
doaj   +1 more source

Recent Advances in Metal‐Organic Framework Photo‐Electrocatalysts for the Synthesis of Ammonia

Carbon Neutralization, Volume 5, Issue 5, September 2026.
This diagram illustrates the role of Metal‐Organic Frameworks (MOFs) in the photocatalytic and electrocatalytic synthesis of ammonia, highlighting their potential as efficient catalysts for sustainable nitrogen fixation under light irradiation and electrode excitation.
Jingjing Wang, Kaiyan Shi, Zhenlin Zhao, Yafu Wang, Ke Yang, Rui Ren, Jianqi Lu, Zhencheng Feng, Xiaojun Gu, Jiangwei Zhang   +9 more
wiley   +1 more source

Four-electron Reduction and Functionalization of N2 by a Uranium(III) Bridging Nitride

CHIMIA, 2018
N2 is a cheap and widely available but very unreactive molecule. Notably, the only industrial process for the conversion of dinitrogen is the Haber-Bosch process to form ammonia, but under very harsh conditions (high temperature and pressure ...
Marta Falcone, Marinella Mazzanti
doaj   +1 more source

Heat integration and part-load performance of an SOEC-coupled Haber–Bosch process

International Journal of Hydrogen Energy
Integrating the Haber–Bosch (HB) process with high-temperature water electrolysis for hydrogen production, such as using solid oxide electrolysis cells (SOEC), offers a promising opportunity to utilize the heat generated during ammonia synthesis for steam generation to partially cover the steam demand of the SOEC.
Matthias Schiedeck, Rafael Nogueira Nakashima, Henrik Lund Frandsen   +2 more
openaire   +1 more source

From Mine to Meal: How Critical Minerals Shape the Future of Food

Food and Energy Security, Volume 15, Issue 5, September/October 2026.
ABSTRACT Food systems are increasingly recognised as material‐intensive socio‐technical systems rather than solely biological or land‐based systems. Yet, critical minerals, which underpin both agricultural inputs and emerging clean energy technologies, remain an under‐recognised determinant of modern food security.
Helen Onyeaka, Keleenna Onyeaka, Phemelo Tamasiga, Neha Mehta   +3 more
wiley   +1 more source

Decadal Bowhead Whale Baleen Stable Isotope and Hormone Chronologies (1985–2010) Provide Insight Into Arctic Ecosystem Change

Global Change Biology Communications, Volume 1, Issue 3, September 2026.
Long‐term chronologies constructed from individual bowhead baleen plates reveal stable isotope declines consistent with regional Arctic food web or productivity changes superimposed on global anthropogenic C and N inputs, while relatively stable hormone concentrations over the same period provide no evidence of a concomitant increase in physiological ...
Cory J. D. Matthews, Justine M. Hudson, Nadine S. J. Lysiak, Kathleen E. Hunt, Mads Peter Heide‐Jørgensen, Steven H. Ferguson   +5 more
wiley   +1 more source

Transition Metal Chalcogenides: Perspectives on Their Applications for Nitrate Reduction

ChemistryOpen, Volume 15, Issue 9, September 2026.
This review paper reports the syntheses, properties, and applications of TMCs for electrochemical reduction of nitrate to ammonia. Various studies revealed that the conversion of nitrate to ammonia is principally the electrocatalytic hydrogenation of nitrate and the rate and yield of ammonia is competitively challenged by hydrogen evolution reaction ...
Martins O. Omorogie
wiley   +1 more source

Breeding for Resilient Cereals: Integrating Molecular Networks and Trait‐Based Selection to Improve Nitrogen and Water Use Efficiencies

Plant, Cell &Environment, Volume 49, Issue 9, Page 6583-6595, September 2026.
ABSTRACT Cereal crops are fundamental to global food security, but their production is increasingly challenged by rising demand and the unpredictable impacts of climate change. Among the most limiting and interdependent resources sustaining yields are nitrogen and water.
Grace Achieng Ochieng, Luc Gujer, Shalom Christopher, Annaliese S. Mason, Agim Ballvora   +4 more
wiley   +1 more source