Results 61 to 70 of about 925,386 (216)
Fossil Footprints of Western North America
, 2014 Footprints, Fossil -- West (U.S.); Dinosaur tracks -- West (U.S.); Trace fossils -- West (U.S.
Martin G. Lockley and Spencer G. Lucas
core
High‐Density‐Cluster Ru Catalyst Substitute for Pt/C Benchmark Improves Membrane Water Electrolysis
Advanced Science, EarlyView.Yuan et al. report a high‐density, monodispersed Ru cluster catalyst featuring interfacial covalent bonds that modulate the electronic structure and optimize intermediate adsorption–desorption, thereby conferring pH‐universal HER activity with ampere‐level current densities and enabling the development of Pt‐free membrane electrodes.
Zhen Yuan +7 more
wiley +1 more source
Origin of Petrified Wood Color
Geosciences, 2016 Fossil forests have world-wide distribution, commonly preserving mineralized wood that displays vivid hues and complex color patterns. However, the origin of petrified color has received little scientific attention.
George Mustoe, Marisa Acosta
doaj +1 more source
Advanced Science, EarlyView.Black silicon couples broadband light harvesting with high‐surface‐area catalytic interfaces, offering a versatile photoelectrode platform for solar‐fuel production. Reaction‐specific analysis highlights trade‐offs involving recombination, chemical instability, catalyst‐induced optical shielding, competing reactions, and mass transport.
Neul Ha, Kaiying Wang, Wooseok Yang
wiley +1 more source
Kinneyia: a flow-induced anisotropic fossil pattern from ancient microbial mats
Frontiers in Materials, 2016 Kinneyia is the commonly-used term to describe a class of trace fossil that is strongly associated with microbial mats. The appearance of Kinneyia (or wrinkle-structures) in the fossil record has recently led to a number of possible mechanisms being ...
Stephan Herminghaus +4 more
doaj +1 more source
Advanced Science, EarlyView.This review summarizes recent advances in the mechanistic, thermodynamic, and kinetic studies of biomass‐derived levulinic acid/levulinates conversion to γ‐valerolactone, along with the corresponding multiscale regulation strategies of Ru‐based catalysts.
Xin Ni +3 more
wiley +1 more source
The trace fossil Bifungites and its tracemaker: A rare find!
Earth History and BiodiversityThe makers of fossil burrows are rarely found preserved within them; thus, the producers even of common trace fossils are often conjectural. This is particularly the case for trace fossils like Bifungites that have no known modern analogues.
Daniel Sedorko +6 more
doaj +1 more source
Advanced Science, EarlyView.This review compares NO3− + CO2 and N2 + CO2 electrocatalytic urea synthesis in feedstock properties, catalyst design, C–N coupling mechanisms, performance optimization, and engineering applicability. The two systems correspond to a near‐term deployable route and a long‐term green synthesis goal, respectively.
Fulin Dong +5 more
wiley +1 more source
Advanced Electronic Materials, EarlyView.Composite‐based flexible electronics integrate biodegradable polymers, conductive networks, and multilayer device architectures to balance electrical performance, mechanical durability, and controlled degradation. Interfacial engineering and encapsulation regulate transport stability and operational lifetime, while programmed disassembly enables ...
Sayam, Sangho Cho
wiley +1 more source
Angewandte Chemie, EarlyView.This review shows that converting CO2 into methanol with catalysts based on abundant first‐row metals requires more than overcoming formate formation. Success depends on balancing hydrogen activation, intermediate reactivity, product release, and catalyst stability.
Elise Boudry, Christophe M. Thomas
wiley +2 more sources