The rational design and fabrication of promising electrodes with prominent energy storage property and conversion performance is crucial for supercapacitors and electrocatalysis. Herein, potato chiplike cobalt nickel-layered double hydroxide@polypyrrole− cotton pad (CoNi-LDH@PCPs) composite was synthesized by in situ polymerization, which was coupled with facile solution reaction and ion-exchange etching process. An interesting potato chip-like structure can effectively expedite the kinetics of the electrode reactions, while the three-dimensional PCPs texture affords efficient pathways for charge transport, and the voids between adjacent fibers are thoroughly accessible for electrolytes and bubble evolution. When evaluated as a positive electrode for wearable supercapattery, the hierarchical CoNi-LDH@PCPs electrode displayed high specific capacity and excellent flexibility. As an oxygen evolution reaction catalyst, this PCPbased electrode also reveals the lowest overpotential of 350 mV at 10 mA cm −2 and a Tafel slope of ∼58 mV dec −1 . In addition, density functional theory calculations suggest that the synthesis strategy for controllable tuning of hollow CoNi-LDH arrays reported here represents a critical step toward high-performance electrodes for energy storage and electrochemical catalysis.

SummaryProteins belonging to the newly identified Cerato-platanin (CP) family have been shown to have elicitor activity in inducing disease resistance responses in various plants. In this study, we characterized a gene, MgSM1, from Magnaporthe grisea, encoding a putative small protein belonging to the CP family. MgSM1 was constitutively expressed not only in different fungal growth stages but also during its infec- Our study also provides a novel strategy to generate environment-friendly crops with enhanced broad-spectrum resistance through ectopic expression of microbe-derived disease resistance-inducing proteins.

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