Metallopolymer Particle Engineering via Etching of Boronate Polymers toward High‐Performance Overall Water Splitting Catalysts

Abstract

Metallopolymers combine the property features of both metallic compounds and organic polymers, representing a typical direction for the design of high‐performance hybrid materials. Here, a highly adaptive etching method to create pores and cavities in the metallopolymer particles is established. Starting from boronate polymer (BP) and inorganic@BP core–shell particles, porous, hollow, and yolk–shell metallopolymer particles can be fabricated, respectively. By taking advantage of the easy control over composition and pore/cavity structure, these metallopolymer particles provide a universal platform for the fabrication of nitrogen, boron co‐doped carbon nanocomposites loaded with metals (M‐NBCs). The as‐prepared M‐NBCs exhibit remarkable catalytic activities toward oxygen evolution reaction and hydrogen evolution reaction. An alkaline overall water splitting cell assembled by using M‐NBCs as the anode and cathode can be driven by a single AAA battery. The proposed strategy for the construction of metallopolymer composites may enlighten for the design of complex hybrid nanomaterials.

A Molecular Coordination Strategy for Regulating the Interface of MoS2 Field Effect Transistors

“…Indeed, the coordinative interaction between metal oxides (or metal ions) and catechol or Phen groups has been experimentally demonstrated. − Since both LA2 and LA5 comprise a catechol group and a Phen group, which are very active to coordinative metal atoms, it is important to clarify which group dominates the interface coordination. In the O 1s XPS spectra (Figure b) of LA2-MoS 2 and LA5-MoS 2 , the O 1s signal shifts toward higher binding energies compared to those of LA2 and LA5, suggesting that the catechol group of LA2 and LA5 participates in the coordination.…”

Electrodeposition of Metal‐Free Polyaniline Electrocatalyst for Efficient Oxygen Evolution in Acid

“…The catalyst presents remarkable catalytic activities for alkaline overall water splitting. [15] Polyaniline (PANI) is a kind of conducting polymer composed of oxidation units and reduction units. It also has a unique large π-conjugated electron structure involving both benzene rings and quinoid rings.…”

“…Dai and coworkers used metallopolymer as the precursor to obtain nitrogen, boron co‐doped carbon nanocomposites loaded with metals with complex pore/cavity structures. The catalyst presents remarkable catalytic activities for alkaline overall water splitting [15] …”