A kinetic study on the mechanism of hydrogen evolution in Ni–P coated titanium hydride powder

Method for electroless nickel plating on the surface of CaCO3 powders

“…[19][20][21] It was indicated that the surface structure of the modied powders facilitated the chemisorption of palladium ions. The chemisorbed Pd atoms were used as the catalyst for electroless plating, 8,18,19 and as shown in Fig. 2(e , H + and Ni 2+ onto the surface of the powders.…”

“…[3][4][5][6][7] Pretreatment can enhance the interfacial adhesion between the metal nanoparticle catalysts and the substrates. [8][9][10] Activated particles (such as Au, Ag and Pd) are adsorbed by the active groups when the pretreated powders are successively immersed in a sensitizing solution and then in an activating solution. [8][9][10] The activated particles serve as seeds to catalyze for electroless plating onto the surface of the powders.…”

“…[8][9][10] Activated particles (such as Au, Ag and Pd) are adsorbed by the active groups when the pretreated powders are successively immersed in a sensitizing solution and then in an activating solution. [8][9][10] The activated particles serve as seeds to catalyze for electroless plating onto the surface of the powders. [8][9][10] It is well known that the sensitizing solution and activating solution are usually acidic SnCl 2 solution and acidic PdCl 2 solution, respectively, where the pH is adjusted using HCl so as to avoid the formation of Sn(OH)Cl and Pd(OH) 2 , [11][12][13] which would reduce the catalytic performance.…”

“…[8][9][10] The activated particles serve as seeds to catalyze for electroless plating onto the surface of the powders. [8][9][10] It is well known that the sensitizing solution and activating solution are usually acidic SnCl 2 solution and acidic PdCl 2 solution, respectively, where the pH is adjusted using HCl so as to avoid the formation of Sn(OH)Cl and Pd(OH) 2 , [11][12][13] which would reduce the catalytic performance. This will facilitate the formation of Sn 2+ and [PdCl 4 ] 2À in the acidic solutions.…”

The Effects of CeO2 Nanorods and CeO2 Nanoflakes on Ni–S Alloys in Hydrogen Evolution Reactions in Alkaline Solutions

“…Now, various transition metals (Fe, Co, Ni, Cu, and Mo) have been deemed as high-efficiency catalysts in HERs [12,[14][15][16][17]. Additionally, there have been many studies on Ni-based materials, such as Ni-Mo [16], Ni-P [18], Ni-W [13], and Ni-S [19], whose morphologies are different.…”