Poly(lactic acid) (PLA) is a biodegradable plastic and grabs attention in several applications such as biomedical implantation, film, packaging and clothing. This review provides new concepts to guide future directions for developing Te NMs‐based electrocatalysts, thereby promoting their future wide applications in electrochemical energy systems. Finally, the existing key issues and main challenges of Te NMs for electrocatalysis are highlighted, and the development trend of Te NMs as electrocatalysts is expounded. Then, typical applications of Te NMs in electrocatalysis are also discussed in detail. First, the engineering strategies and principles of Te NMs to enhance their electrocatalytic activity and stability from the nanostructures to the catalytic atoms are discussed in detail, especially on the chemical/physical/multiplex templating strategies, heteroatom doping, vacancy/defect engineering, phase engineering, and the corresponding mechanisms and structure‐performance correlations. In the absence of comprehensive and guiding reviews, this review comprehensively summarizes the main advances in designing emerging Te NMs for electrocatalysis. Recently, tellurium‐based nanomaterials (Te NMs) with unique chemical, electronic, and topological properties, including Te‐derived nanostructures and transition metal tellurides (TMTs), have emerged as one of the most promising electrocatalytic materials. This work offers new pathways to boost alkaline HOR by rationally designing multicomponent alloys.Ībstract With the dramatic developments of renewable and environmental‐friendly electrochemical energy conversion systems, there is an urgent need to fabricate durable and efficient electrocatalysts to address the limitation of high overpotentials exceeding thermodynamic requirements to facilitate practical applications. Moreover, the catalyst also demonstrates excellent stability with merely 5% activity attenuation after 2000 potential cycles. Hence, the obtained trimetallic alloy catalyst exhibits an impressive kinetic current density of 30.6 mA cm−2geo at 50 mV and an exchange current density of 0.426 mA cm−2metal, which shows 3.0- and 2.5-fold enhancement compared with the commercial Pt/C in alkaline electrolyte, respectively. We optimize the adsorption strength of platinum and ruthenium towards hydrogen and hydroxyl species by regulating the electron donation from tellurium to platinum and ruthenium. Herein, we report a facile route for the synthesis of ternary PtRuTe alloy nanofibers with Pt atomic ratio of only 11% via a simple galvanic replacement reaction. Consequently, the development of platinum-based catalysts combined with high efficiency and durability is urgently required. Sluggish kinetics of anodic hydrogen oxidation reaction (HOR) in alkaline media, which arises from the two orders of magnitude lower HOR activity in alkali than that in acid media for platinum group metals, hinders the commercial implementation of anion exchange membrane fuel cells (AEMFCs). As a result, the quaternary PtPdRuTe NTs exhibit enhanced activity and stability toward efficient MOR. X-ray photoelectron spectroscopy (XPS) reveals a larger extent of electron transfer from neighboring atoms to Pt on PtPdRuTe, con-sequently leading to a weaker bonding of the intermediate on Pt. The optimized incorpo-ration of Pd atoms into ternary PtRuTe NTs facilitated to form uni-form protecting PtPd surface and modify Pt electronic structure to improve the methanol oxidation reaction (MOR) performance. The NT wall thickness and formed NPs on the surface are closely related with the composition, especially Pd content. It is easy to obtain PtPdRuTe NTs with different composition and controlled shape using ultrathin Te nan-owires (NWs) as sacrificial templates for its high activity. In this work, a simple galvanic replacement reaction was utilized to synthesize low Pt-based qua-ternary nanotubes (NTs). Improving heteroatomic interactions via alloying or forming hetero-geneous catalysts is of importance to the enhancement in terms of electrocatalytic activity and stability.
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