Portable electronics and electric or hybrid electric vehicles are developing in the trend of fast charge and long electric mileage, which ask us to design a novel electrode with sufficient electronic and ionic transport channels at the same time. Herein, we fabricate a uniform hollow-urchin-like NiCo(CO)(OH)·0.11HO electrode material through an easy self-generated and resacrificial template method. The one-dimensional chain-like crystal structure unit containing the metallic bonding and the intercalated OH and HO endow this electrode material with abundant electronic and ionic transport channels. The hollow-urchin-like structure built by nanorods contributes to the large electrode-electrolyte contact area ensuring the supply of ions at high current. CNTs are employed to transport electrons between electrode material and current collector. The as-assembled NC-CNT-2//AC supercapacitor device exhibits a high specific capacitance of 108.3 F g at 20 A g, a capacitance retention ratio of 96.2% from 0.2 to 20 A g, and long cycle life. Comprehensive investigations unambiguously highlight that the unique hollow-urchin-like NiCo(CO)(OH)·0.11HO electrode material would be the right candidate for advanced next-generation supercapacitors.

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The liquid-phase epoxidation of cyclopentene (CPE) was performed in the Ti-zeolite/H 2 O 2 catalytic system for the clean synthesis of cyclopentene oxide. Among all the Ti-zeolites (Ti-Beta, Ti-MOR, Ti-MCM-68, TS-1, TS-2, and Ti-MWW) investigated in the present study, Ti-MWW provided relatively lower CPE conversion of 13% due to the diffusion constrains but a higher CPO selectivity of 99.5%. The catalytic performance of Ti-MWW was significantly enhanced by piperidine (PI) treatment, with the CPE conversion and CPO selectivity increased to 97.8 and 99.9%, respectively. The structural rearrangement upon PI treatment converted the 3-dimensional (3D) MWW structure to a 2D lamellar one, which enlarged the interlayer space and greatly alleviated the diffusion constrains of cyclic cyclopentene. Furthermore, the newly constructed "open site" six-coordinated Ti active sites with PI as the ligand exhibited higher catalytic activity. The two factors contributed to more significant enhancement of the activity upon PI-assisted structural arrangement compared to the cases in linear alkenes.

The epoxidation of allyl chloride (ALC) to epichlorohydrin (ECH) with H2O2 using piperidine (PI) modified Ti-MWW catalyst (Ti-MWW-PI) in a continuous slurry reactor was investigated to develop an efficient reaction...

The lithium (Li) dendrite growth seriously hinders the applications of lithium metal batteries (LMBs). Numerous methods have been proposed to restrict the formation of Li dendrites by improving the Li‐ion transference number (tLi+) through separator modification according to Sand's time equation. However, ignoring the positive contribution of anion motion to solid electrolyte interphase (SEI) formation will result in insufficient inorganic components, which impedes practical implementation of LMBs. Herein, a “tandem” separator is constructed (ZSM‐5‐Poly dimethyl diallyl ammonium chloride (PDDA)/Polyethylene (PE)/SbF3), which anchored anions and built an inorganic‐rich SEI at the same time. The resulting SEI from SbF3 (SBF) coating on side facing Li is rich in Li‐Sb alloy (Li3Sb) and LiF. Li3Sb can significantly reduce the migration energy barrier of Li ion (Li+) and facilitate Li+ transport. Simultaneously, ZSM‐5‐PDDA (Z5P) coating at the other side can effectively immobilize anions and increase the tLi+. Moreover, the regular pore structure is conducive to homogenizing Li+ flux and also capable to uniform temperature distribution, significantly improving safety. Hence, the lifespan of Li|Li and Li|Cu cells assemble with Z5P/PE/SBF separator is significantly extended. In addition, full cells with LiNi0.8Co0.1Mn0.1O2 (NCM811) and LiFePO4 (LFP) cathodes show excellent cycle stability and superior rate performance.