Details

Autor(en) / Beteiligte

• Xiao, Yaoyao
• Liu, Fusheng
• Shi, Huan
• Hou, Linrui
• Qin, Guohui
• Yuan, Changzhou
• Lou, Xiong Wen David

Titel

Construction of Ultrastable Ultrathin Black Phosphorus Nanodisks Hybridized with Fe 3 O 4 Nanoclusters and Iron (V)-Oxo Complex for Efficient Potassium Storage

Ist Teil von

• Advanced materials (Weinheim), 2023-07, p.e2301772

Ort / Verlag

Germany

Erscheinungsjahr

2023

Quelle

Access via Wiley Online Library

Beschreibungen/Notizen

• The practical application of metalloid black phosphorus (BP) based anodes for potassium ion batteries is mainly impeded by its instability in air and irreversible/sluggish potassium storage behaviors. Herein, a 2D composite is purposefully conceptualized, where ultrathin BP nanodisks with Fe O nanoclusters are hybridized with Lewis acid iron (V)-oxo complex (FC) nanosheets (denoted as BP@Fe O -NCs@FC). The introduced electron coordinate bridge between FC and BP, and hydrophobic surface of FC synergistically assure that BP@Fe O -NCs@FC is ultrastable in humid air. With the purposeful structural and componential design, the resultant BP@Fe O -NCs@FC anode is endowed with appealing electrochemical performance in terms of reversible capacity, rate behavior, and long-duration cycling stability in both half and full cells. Furthermore, the underlying formation and potassium-storage mechanisms of BP@Fe O -NCs@FC are tentatively proposed. The in-depth insights here will provide a crucial understanding in rational exploration of advanced anodes for next-generation PIBs.