Ruthenium–nickel–nickel hydroxide nanoparticles for room temperature catalytic hydrogenation

Abstract

Ru nanoclusters on Ni/Ni(OH)2 nanoparticles supported on carbon (Ru/Ni/Ni(OH)2/C) were successfully prepared and characterized. Ru/Ni/Ni(OH)2/C exhibited an unprecedented catalytic activity for naphthalene hydrogenation at room temperature due to synergetic catalysis.

Room‐Temperature Morphology‐Controlled Synthesis of Nickel and Catalytic Properties of Corresponding Ru/Ni Catalysts

“…The as‐obtained black powder was singed as Ni‐PVP or Ni‐CTAB, respectively. The corresponding Ru‐on‐Ni crystal catalysts were synthesized through galvanic replacement approach . 0.1000 g of the as‐synthesized nickel crystal (Ni‐No, Ni‐PVP or Ni‐CTAB) was dispersed in the pre‐calculated amount of an aqueous solution of RuCl 3 (9.64×10 −3 mol L −1 ), ultrasonic treatment at RT for two hours.…”

Nickel Hydroxide–Cobalt Hydroxide Nanoparticle Supported Ruthenium–Nickel–Cobalt Islands as an Efficient Nanocatalyst for the Hydrogenation Reaction

“…[39][40][41][42][43] Typically,a n appropriate amount of cobalt(II) chloride hexahydrate (CoCl 2 ·6H 2 O) was dissolved in am ixture of anhydrous ethanol (12.5 mL) and deionized water (82.5 mL), and the mixture was magnetically stirred at RT for 30 min. [39][40][41][42][43] Typically,a n appropriate amount of cobalt(II) chloride hexahydrate (CoCl 2 ·6H 2 O) was dissolved in am ixture of anhydrous ethanol (12.5 mL) and deionized water (82.5 mL), and the mixture was magnetically stirred at RT for 30 min.…”

“…[1][2][3][4][5][6][7][8][9][10][11][12][13][14] For example, Yang et al successfully prepared PtNiCo, PtNi, and PtCo nanoparticles (NPs) by aw et chemical reduction method with oleic acid as ac apping agents and 1,2-hexadecanediol as ar educing agent, [15] and the NPs were supported on as upport (such as carbon). Someb imetallic nanocatalysts have also been utilized, for instance, Pd-Rh, [35] Pt-Ru, [36] Rh-Pt, [37,38] Ru-Ni, [39] and Rh-Ni [40] catalysts. The results confirmed that this catalyst had higherc atalytic activity,h ighers tability,a nd more efficient utilization of the Pt atoms than the Pt/Fe(OH) x catalyst mainly as ar esult of interfacial effects in Pt/FeNi(OH) x .…”

“…They found that PtNiCo/C showed better catalytic performance in the CO oxidationr eactiona nd was more stable than either PtNi/C or PtCo/C.T heir results revealed the intrinsic reason was that Co improved the activity,w hereas Ni was responsible for the increased stability.A dditionally,t he Zheng group de-signed and synthesized aP t/FeNi(OH) x catalyst and appliedi t to CO oxidation. [39][40][41][42][43] The whole synthesis process was maintained in as tainless-steel high-pressure autoclave (Parr4848) under 1.0MPa N 2 .T he Ni (total Ni element) loading was [a] Dr. [16] However,t he above literature reports mainly focus on the applicationso ft ernary metallicn anocatalysts in heterogeneous catalytic oxidation reactions.…”

“…[39][40][41][42][43] The whole synthesis process was maintained in as tainless-steel high-pressure autoclave (Parr4848) under 1.0MPa N 2 .T he Ni (total Ni element) loading was 12.4 wt %i nN i/Ni(OH) 2 /C;t he Co loading was 12.4 wt %i nC o/ Co(OH) 2 /C;a nd the Ni andC ol oadings were 6.1 and 6.0wt%, respectively,i nN iCo/Ni(OH) 2 -Co(OH) 2 /C. [39][40][41][42][43] The whole synthesis process was maintained in as tainless-steel high-pressure autoclave (Parr4848) under 1.0MPa N 2 .T he Ni (total Ni element) loading was 12.4 wt %i nN i/Ni(OH) 2 /C;t he Co loading was 12.4 wt %i nC o/ Co(OH) 2 /C;a nd the Ni andC ol oadings were 6.1 and 6.0wt%, respectively,i nN iCo/Ni(OH) 2 -Co(OH) 2 /C.…”