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微孔硼碳氮化物BCN：合成、表征及二氧化碳捕获前景

Microporous Borocarbonitrides BCN: Synthesis, Characterization, and Promises for CO Capture.

作者信息

Mighri Rimeh, Demirci Umit B, Alauzun Johan G

机构信息

Institut Charles Gerhardt, Univ Montpellier, CNRS, ENSCM, 34095 Montpellier, France.

Institut Europeen des Membranes, IEM-UMR 5635, Univ Montpellier, CNRS, ENSCM, 34095 Montpellier, France.

出版信息

Nanomaterials (Basel). 2023 Feb 15;13(4):734. doi: 10.3390/nano13040734.

DOI:10.3390/nano13040734
PMID:36839102
原文链接:https://pmc.ncbi.nlm.nih.gov/articles/PMC9960740/
Abstract

Porous borocarbonitrides (denoted BCN) were prepared through pyrolysis of the polymer stemmed from dehydrocoupled ethane 1,2-diamineborane (BHNHCHCHNHBH, EDAB) in the presence of F-127. These materials contain interconnected pores in the nanometer range with a high specific surface area up to 511 m · g. Gas adsorption of CO demonstrated an interesting uptake (3.23 mmol · g at 0 °C), a high CO/N selectivity as well as a significant recyclability after several adsorption-desorption cycles. For comparison's sake, a synthesized non-porous BCN as well as a commercial BN sample were studied to investigate the role of porosity and carbon doping factors in CO capture. The present work thus tends to demonstrate that the two-step synthesis of microporous BCN adsorbent materials from EDAB using a bottom-up approach (dehydrocoupling followed by pyrolysis at 1100 °C) is relatively simple and interesting.

摘要

多孔硼碳氮化物（记为BCN）是通过在F - 127存在下对由脱氢偶联乙烷1,2 - 二胺硼烷（BHNHCHCHNHBH，EDAB）衍生的聚合物进行热解制备的。这些材料含有纳米级相互连通的孔隙，比表面积高达511 m²·g⁻¹。CO的气体吸附表现出有趣的吸附量（0°C时为3.23 mmol·g⁻¹）、高CO/N₂选择性以及在几个吸附 - 解吸循环后显著的可回收性。为作比较，研究了合成的无孔BCN以及商业BN样品，以研究孔隙率和碳掺杂因素在CO捕获中的作用。因此，目前的工作倾向于证明，使用自下而上的方法（脱氢偶联，然后在1100°C下热解）由EDAB两步合成微孔BCN吸附剂材料相对简单且有趣。

https://cdn.ncbi.nlm.nih.gov/pmc/blobs/70e3/9960740/e7446477dbc0/nanomaterials-13-00734-g009.jpg
https://cdn.ncbi.nlm.nih.gov/pmc/blobs/70e3/9960740/88ad6f38dc50/nanomaterials-13-00734-g001.jpg
https://cdn.ncbi.nlm.nih.gov/pmc/blobs/70e3/9960740/c645026a7181/nanomaterials-13-00734-g002.jpg
https://cdn.ncbi.nlm.nih.gov/pmc/blobs/70e3/9960740/d06e078472c6/nanomaterials-13-00734-g003.jpg
https://cdn.ncbi.nlm.nih.gov/pmc/blobs/70e3/9960740/1444ebf199e0/nanomaterials-13-00734-g004.jpg
https://cdn.ncbi.nlm.nih.gov/pmc/blobs/70e3/9960740/be4c56341c02/nanomaterials-13-00734-g005.jpg
https://cdn.ncbi.nlm.nih.gov/pmc/blobs/70e3/9960740/0fdd4e2dae05/nanomaterials-13-00734-g006.jpg
https://cdn.ncbi.nlm.nih.gov/pmc/blobs/70e3/9960740/b16594cb6083/nanomaterials-13-00734-g007.jpg
https://cdn.ncbi.nlm.nih.gov/pmc/blobs/70e3/9960740/d309f7972f02/nanomaterials-13-00734-g008.jpg
https://cdn.ncbi.nlm.nih.gov/pmc/blobs/70e3/9960740/e7446477dbc0/nanomaterials-13-00734-g009.jpg
https://cdn.ncbi.nlm.nih.gov/pmc/blobs/70e3/9960740/88ad6f38dc50/nanomaterials-13-00734-g001.jpg
https://cdn.ncbi.nlm.nih.gov/pmc/blobs/70e3/9960740/c645026a7181/nanomaterials-13-00734-g002.jpg
https://cdn.ncbi.nlm.nih.gov/pmc/blobs/70e3/9960740/d06e078472c6/nanomaterials-13-00734-g003.jpg
https://cdn.ncbi.nlm.nih.gov/pmc/blobs/70e3/9960740/1444ebf199e0/nanomaterials-13-00734-g004.jpg
https://cdn.ncbi.nlm.nih.gov/pmc/blobs/70e3/9960740/be4c56341c02/nanomaterials-13-00734-g005.jpg
https://cdn.ncbi.nlm.nih.gov/pmc/blobs/70e3/9960740/0fdd4e2dae05/nanomaterials-13-00734-g006.jpg
https://cdn.ncbi.nlm.nih.gov/pmc/blobs/70e3/9960740/b16594cb6083/nanomaterials-13-00734-g007.jpg
https://cdn.ncbi.nlm.nih.gov/pmc/blobs/70e3/9960740/d309f7972f02/nanomaterials-13-00734-g008.jpg
https://cdn.ncbi.nlm.nih.gov/pmc/blobs/70e3/9960740/e7446477dbc0/nanomaterials-13-00734-g009.jpg

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