Synthesis of Tellurium Fusiform Nanoarchitectures by Controlled Living Nanowire Modification

Abstract

Control of structure enriched abundant unsaturated or dangling bonds can precisely and effectively tune the activity and durability of materials. In this study, a new strategy to obtain fusiform nano-architectures (FNA) has been found for the first time using Te nanostructures as the model materials. TeFNA could be transformed from Te nanorods (NRs) with different diameter (50, 25 nm) even the ultrathin nanowires (10 nm). Besides, a novel perspective into the preliminary mechanism combined collision theory with density functional theory (DFT) simulations was proposed to explain the transformation progress. In the mixing system of hexadecyl trimethyl ammonium bromide (CTAB) solution, the Te NR/NWs keep the translational motion together with the centroid rotation. The velocity of the two ends of TeNR/NWs is higher than that in the center under the reaction condition based on collision theory, meanwhile, the summation energy of both O 2 and CTAB put on Te (0001) surface are -606.992 eV, which means that the Te (0001) can be oxidized easily in the presence of CTAB. Moreover, this approach which regulate the morphology of the existing structure could provide a novel potential way to synthesize FNA for their advanced functional applications.

Atomic Vacancies Control of Pd‐Based Catalysts for Enhanced Electrochemical Performance

“…The metal atoms agglomerate to form nanoclusters, which subsequently grow to small PdCuCo particles (Figure S7A,B, Supporting Information) after the content of corresponding atoms reached the level of supersaturation . The formation of small PdCuCo particles may abide by the law of Wulff's theorem, attempting to minimize the total interfacial free energy (γ) of the system . This result is consistent with the previously reported papers on the shape evolution of the nanocrystals .…”

“…The formation of small PdCuCo particles may abide by the law of Wulff's theorem, attempting to minimize the total interfacial free energy (γ) of the system . This result is consistent with the previously reported papers on the shape evolution of the nanocrystals . The reaction progress of PdCuCo truncated nanocubic generated from the PdCuCo particles is shown in Figure S7A,C in the Supporting Information.…”

“…The reaction progress of PdCuCo truncated nanocubic generated from the PdCuCo particles is shown in Figure S7A,C in the Supporting Information. The new generated zero‐valent metal atoms deposit onto the special active sites as the CTAB molecules and Br − absorb on the {100} facets, which have remarkable influence on the surface energy . The differentiation of the interfacial energy for the intermediates accelerates the island growth to form the anisotropic structures, as shown in Figure S7A,D in the Supporting Information.…”

High antiviral activity of mercaptoethane sulfonate functionalized Te/BSA nanostars against arterivirus and coronavirus

“…36-1452). 44 The FT-IR spectra of Te/BSA nanostars and MES, one of the precursors of Te/BSA nanostars, were collected in the transmission mode between 500 and 4000 cm À1 . As shown in Fig.…”

Green synthesis of air-stable tellurium nanowires via biomolecule-assisted hydrothermal for thermoelectrics

“…28,29 Since the initially generated Te atoms in wet chemistry processes, which are so-called seeds in the reaction medium, generally tend to aggregate due to their high free energy, it is hard to present a specific topography of Te NMs under such conditions. 30 Fortunately, this issue can be solved by employing surfactants such as polyvinylpyrrolidone (PVP), 31 sodium dodecylbenzenesulfonate (SDBS), 32 and cetyltrimethylammonium bromide (CTAB) 33 as both stabilizers and templates.…”