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The development of recyclable, durable and widely adaptable porous hydrophobic materials is of vital importance for the effective separation of leaking oil–water mixtures. Herein, we functionally modified melamine formaldehyde resin sponge (MFRS) with PMMA, PDMS-PMMA and PDMS-PGMA via a facile solution-immersion process. Compared with PMMA-coated MFRS, the improvement of the water contact angle (WCA) and oil–water mixture separation efficiency of PDMS-PMMA/MFRS was sufficient enough to verify that the introduction of PDMS block enhanced the hydrophobic performances. Moreover, the importance of the GMA block in PDMS-PGMA/MFRS was confirmed by the excellent performance of the material in oil–water separation recycling experiments, with 91.5% separation efficiency after 8 runs. The fabricated PDMS-PMMA/MFRS with improved WCA (155°) and oil–water mixture separation efficiency (99.1%) demonstrated superhydrophobic property, which was attributed to the introduction of hydrophobic block PDMS and coating-induced surface geometric folds. Besides, the acid resistance and widely adaptable (efficient separation of various oil–water mixtures) performances of PDMS-PGMA/MFRS were experimentally confirmed. The freely available manufacturing raw materials and facile functionalization process of PDMS-PMMA/MFRS offer possibilities for its adoption in the efficient cleanup of oil spills.

Porous SiOxanodes for Li‐ion batteries with a high volumetric energy density are desired. Herein, carbon‐coated SiOx–SnO2hollow spheres are prepared by facile one‐pot high‐temperature annealing without using any template. During the process, SiOxis obtained through Sn reduction with the assistance of C. In the composite, the SiOxhollow spheres have a thin wall, the small SnO2particles are uniformly imbedded in the sphere wall, and the SiOx–SnO2hollow spheres are coated by cross‐linked carbon. As an anode, the composite has a large volumetric capacity (1339 mAh cm−3at 0.1 A g−1), a high gravimetric capacity (1030 mAh g−1at 0.1 A g−1), and a good cyclic stability (after 100 cycles, 90% capacity is retained compared with that of the second cycle at 0.5 A g−1). The high capacity and good cycle stability result from the superior structure of the composite. Furthermore, the thin wall of the sphere can timely release a large expanded volume during lithiation, and the conformal carbon also provides a framework to maintain the structural integrity and facilitate the formation of a stable solid–electrolyte interface. Carbon‐coated SiOx–SnO2hollow spheres are prepared by a one‐pot facile high‐temperature anneal method, which display a high volumetric energy density (1339 mAh cm−3at 0.1 A g−1) and a large gravimetric capacity (1030 mAh g−1at 0.1 A g−1).