Oxygen Vacancy?Rich La <sub>0.5</sub> Sr <sub>1.5</sub> Ni <sub>0.9</sub> Cu <sub>0.1</sub> O <sub>4–?</sub> as a High?Performance Bifunctional Catalyst for Symmetric Ammonia Electrolyzer
نویسندگان
چکیده
In this study, strontium and copper dual-doped La2NiO4 annealed in Ar (La0.5Sr1.5Ni0.9Cu0.1O4-?-Ar, LSNC-Ar) with K2NiF4 structure is strategically designed as an ammonia oxidation reaction (AOR) hydrogen evolution (HER) bifunctional catalyst for high-efficiency electrolysis. The selective substitution of lanthanum high content improves the electronic conductivity increases oxygen vacancy concentration. Doping Cu into B-site perovskite induces a synergistic interplay Ni Cu, leading to excellent AOR activity. Due HER activity doped La2NiO4, symmetric electrolyzer based on LSNC-Ar (SAE-LSNC-Ar) assembled investigated removal ammonia. addition, performance SAE comparable PtIr/C anode Pt/C cathode at low voltage. This first report using oxide efficient catalyst. SAE-LSNC-Ar shows ?95% efficiency real landfill leachate, which highest among electrochemical leachate. study paves attractive route explore materials highly AOR/HER catalysts electrolysis
منابع مشابه
PYROELECTRIC PROPERTIES OF La-Sr-Co-O/Pb-La-Ti-O/La-Sr-Co-O HETEROSTRUCTURES
The realization of a commercially viable, thin-film uncooled pyroelectric detector has been the focus of research for several years. As part of this effort, we show that a conventional metallic electrode system (typically Pt) can be replaced with a conductive oxide such as LaxSr(1–x)CoO3 (LSCO). In addition to being crystallographically compatible with the lead-based, pyroelectric oxides such a...
متن کاملA sol-gel based method for preparation of Ni/La-Al2O3 as a new catalyst for dechlorination of monochlorobenzene
In this study, two new Ni/La-Al2O3 catalysts were prepared by a sol-gel method, with different aluminium precursors (aluminium triisopropoxide and aluminium nitrate). The catalysts were characterized by scanning electron microscope (SEM), X-ray fluorescence (XRF), X-ray diffraction (XRD), BET specific surface area, and particle size analysis (PSA) techniques. The BET results showed that the par...
متن کاملA ug 2 00 1 ESR study of ( Sr , La , Ca ) 14 Cu 24 O 41
We report an electron spin resonance (ESR) study of single crystals of the spin-chain spin-ladder compound (Sr, La, Ca) 14 Cu 24 O 41. The data suggest that in intrin-sically hole doped Sr 14−x Ca x Cu 24 O 41 only a small amount of holes is transferred from the chains to the ladders with increasing x, resulting in a crossover from spin dimerized to uniform spin chains. In the samples of La 14−...
متن کاملStrontium - Induced Oxygen Defect Structure and Hole Doping in La 2 — Sr Cu 04
Strontium-Induced Oxygen Defect Structure and Hole Doping in La2 — Sr Cu04 Zhengquan Tan, ' M. E. Filipkowski, ' J. I. Budnick, ' E. K. Heller, ' D. L. Brewe, ' B. L. Chamberland, ' C. E. Bouldin, J. C. Woicik, and D. Shi "Uni Uersity of Connecticut, Storrs, Connecticut 06269 ' 'National Institute of Standards and Technology, Gaithersburg, Maryland 20899 ' Argonne National Laboratory, Argonne, ...
متن کاملNi-Supported Pd Nanoparticles with Ca Promoter: A New Catalyst for Low-Temperature Ammonia Cracking
In this paper we report a new nanometallic, self-activating catalyst, namely, Ni-supported Pd nanoparticles (PdNPs/Ni) for low temperature ammonia cracking, which was prepared using a novel approach involving the transfer of nanoparticles from the intermediate carrier, i.e. nano-spherical SiO2, to the target carrier technical grade Ni (t-Ni) or high purity Ni (p-Ni) grains. The method that was ...
متن کاملذخیره در منابع من
با ذخیره ی این منبع در منابع من، دسترسی به آن را برای استفاده های بعدی آسان تر کنید
ژورنال
عنوان ژورنال: Advanced Functional Materials
سال: 2022
ISSN: ['1616-301X', '1616-3028']
DOI: https://doi.org/10.1002/adfm.202204881