Results 191 to 200 of about 474,601 (364)

Enhancing the Hydrogen Evolution Reaction Performance of Ti3C2O2 MXene by Metal Doping

open access: yesChemPhysChem, EarlyView.
Doping Ti3C2O2 by metals may effectively reduce the free energy of the hydrogen evolution reaction reaction steps, thereby enhancing electrocatalytic efficiency. The atomic and electronic structure, thermodynamic stability, and effect of doping the O‐terminated Ti3C2 MXene (Ti3C2O2) by Hf, Nb, Ta, and Zr on the electrocatalytic activity for the ...
Hui Li   +5 more
wiley   +1 more source

A multiscale analysis of a fracture pattern in granite: A case study of the Tamariu granite, Catalunya, Spain

open access: yes, 2015
L. Bertrand   +6 more
semanticscholar   +1 more source

Donor–Acceptor Interactions of C60F18 with Polycyclic Aromatic Hydrocarbons: Size Effects in Bulk Crystallization and Surface Constraints

open access: yesChemPlusChem, EarlyView.
Donor–acceptor (D/A) interactions between spheroidal C60F18 and three planar polycyclic aromatic hydrocarbons (PAHs)—coronene (CORO), perylene , and pyrene—show a strong dependence on PAH size. X‐Ray diffraction reveals increasing layered stacking (either D/A/D/A or D/A/A/D/A/A).
Nicholas J. DeWeerd   +9 more
wiley   +1 more source

Summary

open access: yesHaidé, 2018
Biblioteca Catalunya
doaj   +2 more sources

Climatic resilience after extreme drought in Mediterranean shrubland plant communities

open access: yesEcography, EarlyView.
Extreme climatic events are increasing with climate change, producing changes in communities' climatic characterization. So, mismatches (climatic disequilibrium, CD) between climatic conditions inferred from species' requirements (community inferred climate, CIC) and macroclimate may undergo changes with extreme climatic events.
Raquel Díaz‐Borrego   +5 more
wiley   +1 more source

Evolución de las inundaciones en Catalunya en los últimos quinientos años

open access: diamond, 1999
Ma. del Carmen Llasat Botija   +3 more
openalex   +2 more sources

Development and implantation of two teleradiology and teleconsulting applications in Catalunya: RAIM and CARE [PDF]

open access: green, 2002
O. Barbero   +6 more
openalex   +1 more source

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