Facile and high-performance electrode materials are crucial for the conversion and storage of clean energy. A gold-supported nanostructured NiFeCoPr hydroxide is synthesized by directly electrodepositing praseodymium-doped nickel–cobalt–iron hydroxide onto a gold-deposited nickel foam (NF) substrate. The resultant monolithic NiFeCoPrO-Au/NF electrode exhibits a high specific capacitance (1792 F g–1 at a current density of 10 A g–1), excellent rate capability (1445 F g–1 at a current density of 70 A g–1), and eminent capacitance retention (99.5% after 30 000 cycles) in 3 M KOH electrolyte. When used as an oxygen evolution electrocatalyst, NiFeCoPrO-Au/NF shows high catalytic activity for the oxygen evolution reaction with a small Tafel slope of 28 mV dec–1 in 1 M KOH electrolyte and excellent stability over 10 h. These characteristics demonstrate the enormous potential of the NiFeCoPrO-Au/NF electrode for applications in electrocatalysis and supercapacitors.

Bipodal diacylthioureas [MesC(O)NHC(S)NH]2R (R = C6H4‐1,2 (L1, 1), C6H4‐1,4 (L2, 2)) were synthesized, and their complexation reactions with equimolar Cu(I) halides CuX (X = Cl, Br, ) were investigated. The obtained ligands L1–2 and the resultant Cu(I) complexes (3–8) were characterized by FT‐IR, 1H NMR, 13C NMR spectroscopy, elemental analysis and single‐crystal X‐ray diffraction. The complexation of L1 with CuX gave three different 1D polymers: the infinite single chain (L1CuCl)n (3), edge‐shared double‐ring chain {[(µ‐L1)CuBr]2}n (4), and vertex‐shared double‐ring chain {[L1Cu(µ‐I)]2}n (5). Similarly, but more pronounced, the treatment of L2 with CuX resulted in the formation of 1D edge‐shared double‐ring chain {[(µ‐L2)CuCl]2}n (6), 0D discrete dinuclear metallamacrocyclic ring (L2CuBr)2 (7), and 3D network polymer [L2Cu(µ‐I)]n (8), respectively. The structural diversity may be related to the suitable spacer, flexible C=S directionality and binding roles of halide anions and sulfur donors. Among Cu(I) complexes (3–8) as prepared, both chloride (in 3 and 6) and bromide anions (in 4 and 7) acted as terminal ligands, while the iodide anions (in 5 and 8) served as bridging ligand. In contrast, only in edge‐shared double‐ring chains (4 and 6) it was found that the sulfur donors (one of two in each Ln) played as the bridging ligand.

To meet the challenge of preparing a high-resolution compound eye, this paper proposes a multi-focal-length meniscus compound eye based on MEMS negative pressure molding technology. The aperture is increased, a large field of view angle of 101.14° is obtained, and the ommatidia radius of each stage is gradually increased from 250 μm to 440 μm. A meniscus structure is used to improve the imaging quality of the marginal compound eye so that its resolution can reach 36.00 lp/mm. The prepared microlenses have a uniform shape and a smooth surface, and both panoramic image stitching and moving object tracking are achieved. This technology has great potential for application in many fields, including automatic driving, machine vision, and medical endoscopy.