Palladium Nanoparticle Catalyzed Conversion of Iron Nanoparticles into Diameter‐ and Length‐Controlled Fe₂P Nanorods

Abstract

Nanoparticles and their composites hold great promise for advances in bio-, energy-, and environment-related fields. The properties of nanoparticles depend on composition, phase, dimension, and exposed crystal facets, and thus control over these parameters is crucial for nanoparticles to have desired properties. The process of nanoparticle formation is affected by various kinetic and thermodynamic parameters, which are determined by the intricate interplay of precursors, surfactants, and reaction temperature.

Synthetic Levers Enabling Independent Control of Phase, Size, and Morphology in Nickel Phosphide Nanoparticles

“…While the reactive form of P is not known, PH 3 generated from alkene elimination steps has been purported to be the active species in iron phosphide nanorod formation from iron nanoparticles. 20 Thus, TOP acts as both a coordinating solvent and a reactant. As shown in Scheme 1, the reactions were performed either in one pot (route I) or two pots (route II), with isolation of precursor nanoparticles occurring in the latter.…”

“…Formation of nickel phosphide nanoparticles was achieved by reaction of Ni(acac) 2 with TOP as the P source in the presence of octyl ether and oleylamine in a two-step process involving generation of precursor particles at 200−230 °C followed by further reaction and crystallization at 300−350 °C. While the reactive form of P is not known, PH 3 generated from alkene elimination steps has been purported to be the active species in iron phosphide nanorod formation from iron nanoparticles . Thus, TOP acts as both a coordinating solvent and a reactant.…”

One‐Dimensional Fe2P Acts as a Fenton Agent in Response to NIR II Light and Ultrasound for Deep Tumor Synergetic Theranostics

“…From X-ray photoelectron spectroscopy (XPS) of Fe 2p,the peaks of 711.1 and 724.3 eV were attributed to Fe 2+ ,a nd the peak of 706.9 eV was caused by Fe nanocrystals.T he peaks at 130.0 and 129.0 eV corresponding to P2p 1/2 and P2p 3/2 ,and the peak of 133.0 eV was ascribed to P-O species ( Figure S5). [14] Thea tomic ratio of Fe and P( 2:1) was obtained from ICP-AES and EDS ( Figure S6). [14] Thea tomic ratio of Fe and P( 2:1) was obtained from ICP-AES and EDS ( Figure S6).…”

“…So the valence of Fe and Pobtained by XPS is consistent with Fe 2 Pin the literature. [14] Thea tomic ratio of Fe and P( 2:1) was obtained from ICP-AES and EDS ( Figure S6). Based on these results,t he stoichiometric FP NRs have been successfully prepared.…”

Surface Plasmon Resonance Biosensor Based on Smart Phone Platforms

“…The emergence of portable mobile devices with internet connectivity, high-resolution cameras, touch-screen displays, and high-performance CPUs has facilitated the development of devices suited for out-of-the-laboratory applications without dedicated instruments and laboratory conditions for sensing, detection and analysis. The availability of portable mobile devices with internet connections led to the design of chemical sensors 8 9 . Because smart phones are ubiquitous, integrating biosensing devices into smart phones is a promising approach for the creation of a pervasive biosensor for public health and environmental protection.…”