Size and Aspect Ratio Control of Pd₂Sn Nanorods and Their Water Denitration Properties

Abstract

Monodisperse Pd2Sn nanorods with tuned size and aspect ratio were prepared by co-reduction of metal salts in the presence of trioctylphosphine, amine, and chloride ions. Asymmetric Pd2Sn nanostructures were achieved by the selective desorption of a surfactant mediated by chlorine ions. A preliminary evaluation of the geometry influence on catalytic properties evidenced Pd2Sn nanorods to have improved catalytic performance. In view of these results, Pd2Sn nanorods were also evaluated for water denitration.

Intermetallic Nanocrystals: Syntheses and Catalytic Applications

“…The use of TOP played an important role in facilitating the formation of the cubic shape by capping their {100} facets via selective adsorption of P‐based groups derived from TOP (Figure d). Recently, Cabot and co‐workers demonstrated the synthesis of orthogonal Pd 2 Sn nanorods (space group: Pnma) with different aspect ratios in OAm containing hexadecylammonium chloride (HDA·HCl) or methylamine hydrochloride (MAHC) with TOP as a stabilizer and capping agent at 300 °C ( Figure ) . The authors found that Cl – ions derived from HDA·HCl or MAHC could selectively desorb TOP from the {010} facets on the two ends of a nanorod, leading to anisotropic growth (Figure a).…”

Rational design of nanomaterials for water treatment

“…[16][17][18][19][20][21] In a traditional sense, nanomaterial has two primary advantages over conventional bulk material: (1) very small size and huge specific surface area, which are beneficial to many interface related applications; 16,[22][23][24][25][26][27] (2) It is now a popular perception that the solutions to the existing and future water challenges will highly hinge upon the further development of nanomaterial sciences.…”

“…[16][17][18][19][20][21] In a traditional sense, nanomaterial has two primary advantages over conventional bulk material: (1) very small size and huge specific surface area, which are beneficial to many interface related applications; 16,[22][23][24][25][26][27] (2) [16][17][18][19][20][21] In a traditional sense, nanomaterial has two primary advantages over conventional bulk material: (1) very small size and huge specific surface area, which are beneficial to many interface related applications; 16,[22][23][24][25][26][27] (2) …”

Growth of Au–Pd2Sn Nanorods via Galvanic Replacement and Their Catalytic Performance on Hydrogenation and Sonogashira Coupling Reactions

“…Pd-based multimetallic catalysts and particularly Pd-Sn alloys have raised especial attention in these reactions owing to their reduced cost and improved performance compared to bare Pt or Pd catalysts. 16,[26][27][28][29][30][31] We recently described the synthesis of Pd 2 Sn nanorods (NRs) with narrow size distribution and geometry control. 16 In the present paper we report a procedure based on a galvanic replacement reaction for the growth of Au tips onto Pd 2 Sn NRs to produce Au-Pd 2 Sn heterostructured NRs.…”

“…16,[26][27][28][29][30][31] We recently described the synthesis of Pd 2 Sn nanorods (NRs) with narrow size distribution and geometry control. 16 In the present paper we report a procedure based on a galvanic replacement reaction for the growth of Au tips onto Pd 2 Sn NRs to produce Au-Pd 2 Sn heterostructured NRs. With both types of NRs in hand, we compare the performance of Pd 2 Sn and Au-Pd 2 Sn NPs in alkene and alkyne hydrogenations and in Sonogashira couplings.…”