Manganese oxide octahedral molecular sieves stabilized Rh nanoparticles for the hydrogen production from the ethylenediamine-bisborane hydrolysis

Palladium (0) nanoparticles distributed on lanthanum (III) oxide as an effective catalyst for the methanolysis of hydrazine-borane to produce hydrogen

“…Additionally, some changes in charge distribution and electrostatic fields were observed due to the interaction of Pd NPs and electrophilic structures on the surface with framework atoms. These changes were largely attributed to the decrease in the intensity of Bragg peaks observed in the Pd/La 2 O 3 catalyst [ 64 ].…”

“…The survey analysis of the Pd/La 2 O 3 catalyst in Figure 3a revealed the presence of the Pd element along with the framework elements of La 2 O 3 . High-resolution spectrum of Pd 3d bands displayed two prominent peaks at 334.4 and 339.9 eV corresponding to metallic Pd 3d 5/2 and Pd 3d 3/2 , respectively [ 32 , 64 , 91 ]. This indicates reduction of Pd 2+ ions used as a precursor and the existence of metallic Pd in the Pd (0) form within the catalyst sample.…”

“…Metal nanocatalysts can show high efficiency and selectivity in catalytic reactions where metal ingots are not active. The main reason for the high catalytic efficiency they show in the reactions is the increase in the number of catalytically effective atoms on their surfaces despite the reduction in particle sizes [ 61 – 64 ].…”

Synthesis, characterization and properties of indium-doped manganese oxide molecular sieve sponges

“…10 As a synthetic cryptomelane, OMS-2 materials have many applications, for example, catalytic volatile organic compound (VOC) combustion, 11 catalytic synthesis of imine from benzyl alcohol and aniline, 12 dispersive solid-phase microextraction as an interface adsorbent, 13 and hydrogen production from ethylenediamine-bisborane hydrolysis. 14 Inorganic sponges also have numerous applications, for instance, the oxidative coupling of methane by a TiO 2 -Mn 2 O 3 -Na 2 WO 4 -foam catalyst, 15 efficient urea oxidation in a direct urea fuel cell by a FeNi-supported carbon sponge, 16 construction of lithium-ion batteries using a V 2 O 5 sponge, 17 photocatalytic degradation of high concentration dyes by a Sn 4+ -doped ZnO sponge, 18 and fabrication of an asymmetric supercapacitor using a MnCo-MOF-modified graphene sponge. 19 Some sponges/foams are usually prepared via a conventional ceramic route with hightemperature calcinations; however, this route is unsuitable for fabricating manganese oxide sponges because most manganese oxides exhibit metastable phases due to oxygen loss at high temperatures.…”

“…10 As a synthetic cryptomelane, OMS-2 materials have many applications, for example, catalytic volatile organic compound (VOC) combustion, 11 catalytic synthesis of imine from benzyl alcohol and aniline, 12 dispersive solid-phase microextraction as an interface adsorbent, 13 and hydrogen production from ethylenediamine-bisborane hydrolysis. 14…”