Results 91 to 100 of about 31,892 (230)

Recent Advances in Bimetallic Site Catalysts for Photocatalytic Ammonia Synthesis: Synergistic Effects and Design Strategies

Small, EarlyView.
Photocatalytic ammonia synthesis employs photocatalysts to harness solar energy, driving the reduction of N2 into NH3. The synergistic effects of bimetallic active sites are used to overcome limitations of single‐metal systems and optimize electronic structures.
Haibo Guo, Liying Wang, Jingjing Wang, Zhenzhu Cao, Yongfeng Zhang, Ziwei Tong, Zhongchao Bai, Nana Wang   +7 more
wiley   +1 more source

Electrochemical Synthesis of Ammonia: Recent Efforts and Future Outlook

Membranes, 2019
Ammonia is a key chemical produced in huge quantities worldwide. Its primary industrial production is via the Haber-Bosch method; a process requiring high temperatures and pressures, and consuming large amounts of energy. In the past two decades, several
Ioannis Garagounis, Anastasios Vourros, Demetrios Stoukides, Dionisios Dasopoulos, Michael Stoukides   +4 more
doaj   +1 more source

Ecosystem openness to nitrogen and phosphorus controlled by fertilisation, mowing and plant diversity in a grassland

Functional Ecology, EarlyView.
Read the free Plain Language Summary for this article on the Journal blog. Abstract Ecosystem openness to nitrogen (N) and phosphorus (P) is determined by the balance of N and P inputs (e.g. fertiliser) and outputs (biomass removal). Plant biodiversity enhances nutrient use efficiency due to species' complementary uptake driven by their variation in ...
Bahareh Bicharanloo, Milad Bagheri Shirvan, Timothy R. Cavagnaro, Claudia Keitel, Feike A. Dijkstra   +4 more
wiley   +1 more source

Entropy production minimization in a tubular ammonia synthesis reactor: a mathematical optimization approach with variable geometry and heat flux control

Frontiers in Energy Research
Ammonia is one of the most widely produced chemicals worldwide and is increasingly considered a promising hydrogen carrier for energy storage. We propose a novel thermodynamic optimization strategy for tubular ammonia reactors based on second-law ...
Diego F. Mendoza, Juan Carlos Quintero-Díaz, Signe Kjelstrup   +2 more
doaj   +1 more source

Inferring alternative ecosystem states with field survey data

Methods in Ecology and Evolution, EarlyView.
Abstract Many ecosystems potentially exhibit alternative stable states, where distinct states can coexist under identical environmental conditions. While simulation models have generated key hypotheses in alternative stable states theory, they often rely on scale‐free parameters disconnected from real ecosystems.
Ning Chen, Xiaoxue Dong, Xinwei Li, Lei Huang, Heng Huang, Changjia Li, Yanchuang Zhao, Chi Xu, Miaojun Ma, Zak Ratajczak, Changming Zhao   +10 more
wiley   +1 more source

Flexible Green Ammonia Production: Impact of Process Design on the Levelized Cost of Ammonia

Fuels
This study evaluates the economic feasibility of flexible, renewable ammonia production in Italy through a comprehensive sensitivity analysis of the levelized cost of ammonia (LCOA).
Cecilia Pistolesi, Alberto Giaconia, Claudia Bassano, Marcello De Falco   +3 more
doaj   +1 more source

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

Plant, Cell &Environment, EarlyView.
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

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

Technoeconomic and sustainability analysis of batch and continuous crystallization for pharmaceutical manufacturing

AIChE Journal, Volume 72, Issue 7, July 2026.
Abstract In pharmaceutical industries, continuous manufacturing methods have already been well established to improve productivity and process intensification. However, to better understand the trade‐offs of continuous crystallizers over the existing batch production systems, a robust technoeconomic cost and sustainability analysis is necessary to ...
Jungsoo Rhim, Zoltan K. Nagy
wiley   +1 more source

Exploring the Efficacy of Single-Atom Alloy Catalysts for the Haber-Bosch Process

, 2017
The Haber-Bosch process is used for the production of ammonia from gaseous nitrogen and hydrogen through the reaction N2 + 3H2 → 2NH3. Ammonia is used in fertilizer and its production uses approximately 2% of the world’s energy. Our Goals.
Wang, Shengguang, Do, Quan K., Mai, Cindy   +2 more
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