Ocurrió en un partido de béisbol.
For our final post of this year’s Motherhood Around the World series, we talked to Angelina Allen de Melo, a professional ballet dancer. She lives in Sweden’s second largest city, Gothenburg, with her husband, Fernando, and two-year-old daughter, Lucia.… Read more
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The Democratic presidential candidate says she would act through executive action to close the "gun-show loophole" and tighten Internet sales, if Congress doesn't act.
We have synthesized a porous Mo-based composite obtained from a polyoxometalate-based metal–organic framework and graphene oxide (POMOFs/GO) using a simple one-pot method. The MoO2@PC-RGO hybrid material derived from the POMOFs/GO composite is prepared at a relatively low carbonization temperature, which presents a superior activity for the hydrogen-evolution reaction (HER) in acidic media owing to the synergistic effects among highly dispersive MoO2 particles, phosphorus-doped porous carbon, and RGO substrates. MoO2@PC-RGO exhibits a very positive onset potential close to that of 20 % Pt/C, low Tafel slope of 41 mV dec−1, high exchange current density of 4.8×10−4 A cm−2, and remarkable long-term cycle stability. It is one of the best high-performance catalysts among the reported nonprecious metal catalysts for HER to date.
Nanocomposite catalyst: A novel Mo-based catalyst for the hydrogen-evolution reaction has been synthesized by directly carbonizing a composite obtained from polyoxometalate-based metal–organic frameworks and graphene oxide at a relatively low temperature. The Mo-based catalyst exhibits a positive onset potential, low Tafel slope, high exchange current density, and long-term stability for the hydrogen-evolution reaction in acidic media.
Picking up broken glass is dangerous. Doing it wrong can be even worse. If you’re picking up the pieces by reaching for a broom, or grabbing shards with your bare hands, check this video out to learn the right way.
People join LinkedIn to help advance their careers (or at least feel like they’re trying). People do not join LinkedIn to receive an endless torrent of emails with this infamous line: “Hi, I’d like to add you to my professional network on LinkedIn.” A judge agrees, and now LinkedIn must pay.
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