Pd–Cu alloy with hierarchical network structure as enhanced electrocatalysts for formic acid oxidation

Syntheses of magnetic blackberry-like Ni@Cu@Pd nanoparticles for efficient catalytic reduction of organic pollutants

Interfacial engineering of worm-shaped palladium nanocrystals anchored on polyelectrolyte-modified MXene nanosheets for highly efficient methanol oxidation.

Tuning butene selectivities by Cu modification on Pd-based catalyst for the selective hydrogenation of 1,3-butadiene

1D-2D hybridization: Nanoarchitectonics for grain boundary-rich platinum nanowires coupled with MXene nanosheets as efficient methanol oxidation electrocatalysts

Nanosized Rh grown on single-walled carbon nanohorns for efficient methanol oxidation reaction

Bimetallic Pd1Cu3 multipod nanocrystals (Pd1Cu3-MNCs) are synthesized by a facile hydrothermal method. The catalytic reduction of CuII by Pd crystal nuclei is critical for the formation of Pd1Cu3-MNCs. Pd1Cu3-MNCs show remarkably enhanced catalytic activity for the hydrogenation reduction of nitro functional groups compared to the commercial Pd black.

Polyamine-assisted hydrothermal synthesis of bimetallic Pd1Cu3 multipods and their high catalytic ability in 4-nitrophenol reduction

Open AccessRenewablesRESEARCH ARTICLES14 Jan 2023Platinum-tellurium alloy metallene towards formic acid oxidation reaction Ya-Nan Li, Qing-Ling Hong, Bo-Qiang Miao, Tian-Jiao Wang, Yu Ding and Yu Chen Ya-Nan Li Google Scholar More articles by this author , Qing-Ling Hong Google Scholar More articles by this author , Bo-Qiang Miao Google Scholar More articles by this author , Tian-Jiao Wang Google Scholar More articles by this author , Yu Ding Google Scholar More articles by this author and Yu Chen Google Scholar More articles by this author https://doi.org/10.31635/renewables.022.202200005 SectionsSupplemental MaterialAboutPDF ToolsAdd to favoritesDownload CitationsTrack Citations ShareFacebookTwitterLinked InEmail Engineering the composition and/or morphology is highly effective strategy for enhancing the electrocatalytic performance of noble metal nanocrystals. Recently, metallenes with specific chemical and physical properties have attracted increasing attention in electrocatalysis field. In this work, two-dimensional ultrathin platinum-tellurium alloy metallene (PtTe A-ML) is synthesized by using a conventional liquid-phase chemical reduction method. The high atom utilization as well as alloy effect endow PtTe A-ML with preeminent electrocatalytic activity for the formic acid oxidation reaction (FAOR). Specifically, the direct oxidation pathway of FAOR can be completely achieved at PtTe A-ML, which suppresses the production of toxic carbon monoxide (CO) intermediates and improves the reaction kinetics of FAOR. Accordingly, the FAOR activity of PtTe A-ML in acidic media is 43 and 5.6 times higher than that of commercial Pt and Pd nanocrystals, respectively. Meanwhile, PtTe A-ML exhibits also excellent electrocatalytic activity for CO oxidation reaction because of the introduction of oxygenophilic Te atoms and electron transfer between Pt and Te, which elevates the durability of PtTe A-ML for FAOR. The study provides a simple synthesis strategy of PtTe A-ML and shows PtTe A-ML has a promising practical prospect in direct formic acid fuel cells. Download figure Download PowerPoint Next article FiguresReferencesRelatedDetails Issue AssignmentNot Yet AssignedSupporting Information Copyright & Permissions© 2023 Chinese Chemical Society Downloaded 4 times PDF downloadLoading ... 

Platinum-tellurium alloy metallene towards formic acid oxidation reaction

Developing economical, efficient, and durable oxygen evolution catalysts is crucial for achieving sustainable energy conversion and storage. Ruddlesden-Popper-type perovskite oxides are at the forefront of oxygen evolution reaction (OER) research. However, their activity and stability are far from satisfactory. Therefore, we emphasize the paradigm shift in designing efficient perovskite-type OER catalysts through anion defect engineering. The Cl anion-doped A2BO4-type perovskite oxides, SrLaCoO4-xClx (SLCOClx), were employed as highly efficient OER catalysts, wherein Cl could tune the electronic structure of SrLaCoO4 (SLCO) to enhance the OER activity effectively. Especially, SLCOCl0.15 demonstrates significantly enhanced OER activity, and the overpotential is only 370 mV at 10 mA·cm-2, which is significantly better than that of SLCO (510 mV). As confirmed by experience results and density functional theory (DFT) calculation, due to the doping of Cl, obviously increasing the ratio of Co2+/Co3+, more abundant oxygen vacancies (O22-/O-) are generated, and the electrical conductivity is increased, which together promote the improvement of OER activity.

Yanan Li

Papers

Nanosized Rh grown on single-walled carbon nanohorns for efficient methanol oxidation reaction

Polyamine-assisted hydrothermal synthesis of bimetallic Pd1Cu3 multipods and their high catalytic ability in 4-nitrophenol reduction

Platinum-tellurium alloy metallene towards formic acid oxidation reaction

Regulating the Electronic Structure of Ruddlesden-Popper-Type Perovskite by Chlorine Doping for Enhanced Oxygen Evolution Activity.