Vertical stratification of selected Hymenoptera in a remnant forest of the Po Plain (Italy, Lombardy) (Hymenoptera: Ampulicidae, Crabronidae, Sphecidae) [PDF]
, 2017 Communities of the canopy of temperate forests are still relatively unexplored. Furthermore, very little is known on how vertical stratification for some insect groups is related to biological strategies.
Cerretti, Pierfilippo +2 more
core +13 more sources
Boosting Oxygen Electrocatalytic Activity of Fe–N–C Catalysts by Phosphorus Incorporation
Journal of the American Chemical Society, 2023 Nitrogen-doped graphitic carbon materials hosting single-atom iron (Fe–N–C) are major non-precious metal catalysts for the oxygen reduction reaction (ORR). The nitrogen-coordinated Fe sites are described as the first coordination sphere.
Yazhou Zhou +8 more
semanticscholar +1 more source
Correlation between Pile Displacement from Pile Load Tests and FE Modelling: Case Study of Piles in Cawthorne Channel Area in Nigeria [PDF]
JES: Journal of Engineering Sciences, 2023 Pile load static tests are used to confirm that a pile would not exceed a prescribed displacement at service or ultimate limit load. In this work, 600mm diameter steel piles were driven to 30m depths at the project site in the Niger Delta region of ...
Ebuka Nwankwo
doaj +1 more source
Iron atom–cluster interactions increase activity and improve durability in Fe–N–C fuel cells
Nature Communications, 2022 Simultaneously increasing the activity and stability of the single-atom active sites of M–N–C catalysts is critical but remains a great challenge. Here, we report an Fe–N–C catalyst with nitrogen-coordinated iron clusters and closely surrounding Fe–N4 ...
X. Wan +8 more
semanticscholar +1 more source
Nature Catalysis, 2022 Proton exchange membrane fuel cells convert hydrogen and oxygen into electricity without emissions. The high cost and low durability of Pt-based electrocatalysts for the oxygen reduction reaction hinder their wide application, and the development of non ...
Fei Xiao +17 more
semanticscholar +1 more source
Study the stability of Si, Ge, Fe and Co in the interior surface of metallic carbon nanotube for hydrogen storage [PDF]
Hydrogen, Fuel Cell & Energy Storage, 2015 In this article, we have performed calculations for studying the stability of the carbon group elements such as Si and Ge and also the magnetic elements like Fe and Co via first principle investigations.
Hadi Arabi +2 more
doaj +1 more source
Comments about the relationship between Science and Faith in the Magisterium of the Church
Revista Latinoamericana de Difusión Científica, 2021 En el texto se analiza la relación entre Ciencia y Fe en el Magisterio de la Iglesia Católica. El análisis se fundamenta en la posición de los Concilios Vaticano I y II sobre la importancia de la Fe y la Razón para el hombre, en su búsqueda de la verdad;
Reyber Antonio Parra Contreras
doaj +1 more source
Insights into the activity of single-atom Fe-N-C catalysts for oxygen reduction reaction
Nature Communications, 2022 Single-atom Fe-N-C catalysts has attracted widespread attentions in the oxygen reduction reaction (ORR). However, the origin of ORR activity on Fe-N-C catalysts is still unclear, which hinder the further improvement of Fe-N-C catalysts.
Kang Liu +7 more
semanticscholar +1 more source
Electrochemical ammonia synthesis via nitrate reduction on Fe single atom catalyst
Nature Communications, 2021 Electrochemically converting nitrate, a widespread water pollutant, back to valuable ammonia is a green and delocalized route for ammonia synthesis, and can be an appealing and supplementary alternative to the Haber-Bosch process.
Zhen-Yu Wu +18 more
semanticscholar +1 more source
Nature Communications, 2021 As low-cost electrocatalysts for oxygen reduction reaction applied to fuel cells and metal-air batteries, atomic-dispersed transition metal-nitrogen-carbon materials are emerging, but the genuine mechanism thereof is still arguable.
Gege Yang +14 more
semanticscholar +1 more source