%0 Journal Article
%T A Comparison of Hydrogen Storage in Pt, Pd and Pt/Pd Alloys Loaded Disordered Mesoporous Hollow Carbon Spheres
%A Beata Michalkiewicz
%A Beata Zielinska
%A Dariusz Moszy¨˝ski
%A Grzegorz Bazarko
%A Krzysztof Cendrowski
%A Martyna Baca
%A Ryszard J. Kalenczuk
%A Wojciech Kukulka
%J Archive of "Nanomaterials".
%D 2018
%R 10.3390/nano8090639
%X Comprehensive study to evaluate the ability of hydrogen uptake by disordered mesoporous hollow carbon spheres doped witch metal such as Pt, Pd or Pt/Pd was conducted. They were synthesized facilely using sonication and then calcination process under vacuum at the temperature of 550 ˇăC. The effect on hydrogen sorption at neat-ambient conditions (40 ˇăC, up to 45 bar) was thoroughly analyzed. The results clearly revealed that metal functionalization has a significant impact on the hydrogen storage capacity as the mechanism of gas uptake depends on two factors: metal type and certain size of particles. Thus, functionalized spheres adsorb hydrogen by physisorption forming metal hydrides or metal hydrides combined with hydrogen spillover effect. As a result, a sample with narrower distribution of nanoparticles and smaller specific size exhibited enhanced hydrogen uptake
%K mesoporous carbons
%K metal supported carbons
%K H2 storage
%K hydrogen spillover
%U https://www.ncbi.nlm.nih.gov/pmc/articles/PMC6163314/