氮化硼陶瓷一维和二维多晶型物的腐蚀行为

Corrosion Behavior of 1D and 2D Polymorphs of Boron Nitride Ceramic.

作者信息

Thomas Tony, Agarwal Arvind

机构信息

Plasma Forming Laboratory, Mechanical and Materials Engineering, Florida International University, Miami, Florida33174, United States.

出版信息

ACS Omega. 2023 Jan 9;8(3):3184-3189. doi: 10.1021/acsomega.2c06477. eCollection 2023 Jan 24.

DOI:10.1021/acsomega.2c06477

PMID:36713692

原文链接:https://pmc.ncbi.nlm.nih.gov/articles/PMC9878641/

Abstract

This study reports a fundamental electrochemical study to understand the corrosion behavior of 1D bulk, free-standing 1D boron nanotube (BNNT) buckypaper and compare it with a sintered 2D hBN nanoplatelet (BNNP) pellet. Tafel analysis indicates that 1D BNNT has superior corrosion resistance with a lower corrosion rate of 0.0026 mils per year (mpy). 2D BNNP, although having similar chemistry to 1D BNNT, resulted in an increased (40 times) corrosion rate of 0.107 mpy. The higher surface area and aspect ratio of BNNT drastically influenced the corrosion kinetics. The scientific outcomes will enable the better design of novel hBN-based corrosion-resistant materials.

摘要

本研究报告了一项基础电化学研究，旨在了解一维块状、独立的一维硼纳米管（BNNT）巴基纸的腐蚀行为，并将其与烧结的二维六方氮化硼（hBN）纳米片（BNNP）颗粒进行比较。塔菲尔分析表明，一维BNNT具有优异的耐腐蚀性，年腐蚀速率较低，为0.0026密耳每年（mpy）。二维BNNP虽然与一维BNNT具有相似的化学性质，但其腐蚀速率却增加了（40倍），达到0.107 mpy。BNNT较高的表面积和长径比极大地影响了腐蚀动力学。这些科学成果将有助于更好地设计新型的基于hBN的耐腐蚀材料。