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In flexible electronics, appropriate inlaid structures for stress dispersion to avoid excessive deformation that can break chemical bonds are lacking, which greatly hinders the fabrication of super‐foldable composite materials capable of sustaining numerous times of true‐folding. Here, mimicking the microstructures of both cuit cocoon possessing super‐flexible property and Mimosa leaf featuring reversible scatheless folding, super‐foldable C‐web/FeOOH‐nanocone (SFCFe) conductive nanocomposites are prepared, which display cone‐arrays on fiber structures similar to Mimosa leaf, as well as non‐crosslinked junctions, slidable nanofibers, separable layers, and compressible network like cuit cocoon. Remarkably, the SFCFe can undergo over 100 000 times of repeated true‐folding without structural damage or electrical conductivity degradation. The mechanism underlying this super‐foldable performance is further investigated by real‐time scanning electron microscopy folding characterization and finite‐element simulations. The results indicate its self‐adaptive stress‐dispersion mechanism originating from multilevel biomimetic structures. Notably, the SFCFe demonstrates its prospect as a super‐foldable anode electrode for aqueous batteries, which shows not only high capacities and satisfactory cycling stability, but also completely coincident cyclic voltammetry and galvanostatic charge–discharge curves throughout the 100 000 times of true‐folding. This work reports a mechanical design considering the self‐adaptive stress dispersion mechanism, which can realize a scatheless super‐foldable electrode for soft‐matter electronics. [ABSTRACT FROM AUTHOR]

The exploration of non-noble-metal recyclable catalysts for high efficiency H2 generation from N2H4·H2O is of great significance for the sustainable strategy of society. A NiCo/NiO–CoOx ultrathin layered catalyst was fabricated successfully via a dynamics controlling coprecipitation–reduction (DCCR) process followed by calcination and applied to H2 generation from N2H4·H2O. Small nanosized NiCo particles (∼4 nm) were uniformly anchored on the surface of the NiO–CoOx ultrathin layered supports. Based on the cooperation between the NiCo active-centers and high intensity base-sites of the NiO–CoOx support, the Ni70Co30/NiO–CoOx ultrathin layered nanocomposite exhibits over 99% selectivity for H2 generation from N2H4·H2O with a high reaction rate (molN2H4 molNiCo−1 h−1) of 5.49 h−1 without using alkali as a catalyst promoter at 25 °C, which is superior to the reported studies. Moreover, the NiCo nanoalloys loading on the NiO–CoOx sheets enables an outstanding recycle performance over 10 cycles. The non-noble-metal NiCo/NiO–CoOx layered nanocomposite shows great value in catalyzing H2 generation from N2H4·H2O in practical applications. [ABSTRACT FROM AUTHOR]

New Cu2O-on-Cu nanowires (NWs) are constructed to develop the visible-light-driven activity of photocatalysts via the facile self-assembly of Cu2O nanoparticles (NPs) on a Cu NW surface assisted by a structure director, followed in situ reduction. In the resultant Cu2O-on-Cu NWs, the Cu2O NPs, with a diameter of 10 nm, show good distribution on the 50 nm-sized Cu single-crystal NWs. Owing to the band-gap adjusting effect and high electron transportation, the coupling of narrow-band-gap semiconductor Cu2O and excellent conductor Cu can lead to the markedly enhanced high visible light photocatalytic activity of Cu2O-on-Cu NWs toward the degradation of dye pollutants including Rhodamine B (RhB), methyl orange (MO) and methyl blue (MB). The as-designed Cu2O-on-Cu heterostructured NWs exhibit higher performance for the catalytic degradation of dye compounds than pure Cu2O. Nearly 60%, 100%, and 85% conversion with reaction rate constants (k) of 0.0137, 0.0746 and 0.0599 min−1 can be achieved for the degradation of RhB, MO and MB, respectively. Besides the highly efficient transportation of electrons, Cu NWs have a strong capacity for oxygen activation, which results in the gathering of negative charges and rich chemisorbed oxygen onto the surface. This may be responsible for the high catalytic efficiency of the Cu2O-on-Cu NWs toward the degradation of organic pollutants. [ABSTRACT FROM AUTHOR]

Newly designed TiO2-on-Cu2O nanocubes have been constructed as visible-light-driven photocatalysts with high efficiency by means of a facile self-assembly approach at room temperature. In the resultant TiO2-on-Cu2O nanocubes, the TiO2 nanoparticles with a diameter of 6-8 nm show a well-monodispersed distribution of the 200-300 nm-sized Cu2O single-crystal nanocubes, which can form sub-monolayer, monolayer, and multilayer coverage through controlling the ratio of the two phases. In particular, the coupling of the wide-bandgap semiconductor TiO2 with narrow-bandgap Cu2O can lead to the markedly enhanced high visible-light photocatalytic activity in the TiO2-on-Cu2O nanocomposite systems toward the photodegradation of rhodamine B, which is induced by the bandgap-adjusting effect. This promising self-assembly route can be extended to the preparation of other nanocomposite materials. [ABSTRACT FROM AUTHOR]

Newly designed TiO 2 -on-Cu 2 O nanocubes have been constructed as visible-light-driven photocatalysts with high efficiency by means of a facile self-assembly approach at room temperature. In the resultant TiO 2 -on-Cu 2 O nanocubes, the TiO 2 nanoparticles with a diameter of 6-8 nm show a well-monodispersed distribution of the 200-300 nm-sized Cu 2 O single-crystal nanocubes, which can form sub-monolayer, monolayer, and multilayer coverage through controlling the ratio of the two phases. In particular, the coupling of the wide-bandgap semiconductor TiO 2 with narrow-bandgap Cu 2 O can lead to the markedly enhanced high visible-light photocatalytic activity in the TiO 2 -on-Cu 2 O nanocomposite systems toward the photodegradation of rhodamine B, which is induced by the bandgap-adjusting effect. This promising self-assembly route can be extended to the preparation of other nanocomposite materials., (Copyright © 2014 WILEY-VCH Verlag GmbH & Co. KGaA, Weinheim.)