Undoped SnO₂ as a Support for Ni Species to Boost Oxygen Generation through Alkaline Water Electrolysis

Abstract

the 3d transitional-metal oxides and oxyhydroxides and especially Ni-based materials have attracted considerable attention due to their low cost, easy availability, strong strength, better ductility, high corrosion resistance, good heat conduction, and high electrical conductivity. 15-32 Thus, Ni-based composite electrodes, such as NiP 2 , Ni chalcogenides, Ni (oxy)hydroxides or

Unraveling the Synergistic Participation of Ni–Sn in Nanostructured NiO/SnO2 for the Catalytic Transfer Hydrogenolysis of Benzyl Phenyl Ether

“…The H 2 -TPR desorption profile of NiO(10%)/SnO 2 falls in between the pristine NiO and SnO 2 . This feature suggests that NiO or its reduced states interacts with SnO 2 or its reduced state and forms different reduced species, which appear in the TPR profiles in the range of 400–800 °C . The H 2 -TPR analysis further suggests that under the H 2 environment, the reduction of NiO took place above 400 °C.…”

“…This feature suggests that NiO or its reduced states interacts with SnO 2 or its reduced state and forms different reduced species, which appear in the TPR profiles in the range of 400−800 °C. 48 The H 2 -TPR analysis further suggests that under the H 2 environment, the reduction of NiO took place above 400 °C. The H 2 -TPR study shows the reducibility of the SnO 2 , NiO, and NiO(10%)/SnO 2 catalyst.…”

Layered Porous Graphitic Carbon Nitride Stabilized Effective Co2SnO4 Inverse Spinel as a Bifunctional Electrocatalyst for Overall Water Splitting

“…Particularly, transition-metal-based catalysts such as oxides, hydroxides, sulfides, selenides, phosphides, nitrides, and carbides have been widely investigated as cost-effective bifunctional catalysts for overall water splitting. − Especially, Sn-based metal oxides have the potential of being the most promising alternatives for noble metal electrocatalysts in overall water splitting owing to their earth abundance, unique electronic properties, high electron mobility, and good electrical conductivity. Owing to the strong electrocatalytic interactions, the aforementioned materials tend to express an excellent electrocatalytic activity and high stability during HER and OER to fairly fit in the overall water splitting process. , To date, many inverse spinel lattices such as Ca 2 SnO 4 , Zn 2 SnO 4 , Ba 2 SnO 4 , Cd 2 SnO 4 , Mn 2 SnO 4 , and Co 2 SnO 4 have been studied for wide applications such as Li-ion batteries, sensors, and supercapacitors. It means the introduction of a second metal enriches the conductivity and the redox properties of monometal oxides. − Especially, the Co 2 SnO 4 inverse spinel has secured great interest due to its excellent properties such as high thermal stability, low cost, nontoxic nature, and showing prominent applications in Li-ion batteries, sensors, and supercapacitors. − Besides, the presence of Co 2+ in Co 2 SnO 4 has improved the active sites for catalytic activity and the presence of Sn provides superior electrical conductivity. ,− In this context, it was decided to synthesize cubical cobalt stannate to explore its performance in electrocatalysis.…”

Degenerated TiO2 Semiconductor Modified with Ni and Zn as Efficient Photocatalysts for the Water Splitting Reaction

“…However, new insights within electrochemistry science envisage Ni as a potential candidate. [16] Starting from the moment when Bard introduced the concept of pairing different semiconductors for water splitting [10] much effort have been made to develop active photocatalysts for this purpose. In this view, different oxide heterostructures based on TiO 2 , like n-type/n-type metal oxides (e. g. ZnO/TiO 2 ) [17,18] or p-type/n-type metal oxides (e. g. Cu 2 O/ TiO 2 or NiO/TiO 2 ), [19][20][21][22][23][24][25] were designed.…”

“…Finding the proper electrocatalyst with all these properties is a challenging task. However, new insights within electrochemistry science envisage Ni as a potential candidate …”