Density-Controlled Metal Nanocluster In article number 2211192, Hyoyoung Lee and co-workers report a simple effective strategy for preparing series of density-controlled surface-modulated metal nanoclusters with the assistance N-rich size-limited covalent organic polymer. The prepared Ir show better HER OER performances than commercial Pt/C Ir/C, respectively.

The structure of the polyamide (PA) nanofilm formed via interfacial polymerization (IP) is vital to permeance-selectivity composite membranes. However, it challenging control morphology (e.g., nodules, ridge-and-valley) PA due fast IP kinetics. Herein, we deconstructed kinetic pathways probe and demonstrated that (I) main skeleton was composed sub-10 nm nanoclusters; (II) growth assembly nanocl...

About 240,000 square kilometers of Earth's surface is disrupted by mining, which creates watersheds that are polluted by acidity, aluminum, and heavy metals. Mixing of acidic effluent from old mines and acidic soils into waters with a higher pH causes precipitation of amorphous aluminum oxyhydroxide flocs that move in streams as suspended solids and transport adsorbed contaminants. On the basis...