Ultralong Ternary PtRuTe Mesoporous Nanotubes Fabricated by Micelle Assembly with a Self‐Sacrificial Template

Abstract

High surface area and fast mass transport rate are important to enhance the activity and stability of catalysts. In this work, tellurium nanowires and F127 triblock copolymer are used as self‐sacrificial and soft templates, respectively, to synthesize PtRuTe mesoporous nanotubes (MNTs). The designed PtRuTe MNTs show uniformly distributed mesopores and an internally hollow structure, which can effectively improve Pt utilization, the catalytic activity and durability, and CO tolerance for the methanol oxidation reaction. Very different from previous 1D metallic catalysts with solid interiors and smooth surfaces, PtRuTe MNTs are unique, with a mesoporous exterior and hollow interior. The facile route presented herein is very feasible for fabricating 1D mesoporous metallic catalysts.

Noble‐Metal‐Based Hollow Mesoporous Nanoparticles: Synthesis Strategies and Applications

“…This two-step GRST strategy has successfully prepared several 1D HMNs, including bimetallic PtTe (Figure 7i-m), [21] and IrTe HMNs, [34] and trimetallic PtRuTe HMNs. [22] A sequential reduction strategy was developed to direct GRST synthesis of NM-based HMNs. Compared to the two-step GRST strategy, the sequential reduction-assisted GRST strategy is seedless and can be completed in one step.…”

“…This two‐step GRST strategy has successfully prepared several 1D HMNs, including bimetallic PtTe (Figure 7i–m), [ 21 ] and IrTe HMNs, [ 34 ] and trimetallic PtRuTe HMNs. [ 22 ]…”

“…Herein, we aim to summarize the progress in the synthesis and applications of NM‐based HMNs, mainly focusing on the results of studies conducted by our two groups ( Table 1 ). [ 5a–f,6e,7–22 ] For the synthesis of NM‐based HMNs, hollow cavities are introduced into NMs. Herein, we discuss five strategies to introduce hollow cavities into MNs: SSTN, surfactant‐templated sequential nucleation (STSN), soft “dual”‐template (SDT), Kirkendall effect in synergistic template (KEST), and galvanic‐replacement‐assisted surfactant‐template (GRST) ( Figure ).…”

The use of amino-based functional molecules for the controllable synthesis of noble-metal nanocrystals: a minireview

“…129,132,133 Compared with other methods, the templateassisted method has unique advantages for the synthesis of 3D noble-metal nanocrystals. [134][135][136][137] The construction of 3D nanostructures, such as porous and hollow nanostructures, could be carried out with the assistance of molecular templates, such as amphiphilic surfactants. 138,139 Amino-based groups are typical hydrophilic groups that could act well as amphiphilic surfactants for the synthesis of hollow and porous structures.…”

Pt@Mesoporous PtRu Yolk–Shell Nanostructured Electrocatalyst for Methanol Oxidation Reaction

“…Direct methanol fuel cells (DMFCs) are high-efficiency, environmentally friendly, and promising renewable energy conversion devices, which can convert chemical energy into electricity. − Owing to the importance of the methanol oxidation reaction (MOR) in DMFCs, developing low-cost, stable, and efficient catalysts for the MOR is a crucial topic for the practical application of DMFCs. − Pt-based nanomaterials as electrode materials have received significant attention due to their superior catalytic performance for the MOR. − However, high cost and poor stability heavily limit the extensive application of Pt-based electrocatalysts for the MOR. , Intensive efforts have been aimed at the promotion of catalytic activity by flexibly controlling the synthesis of Pt-based nanoarchitecture with tailored compositions and morphology. , …”