PMID- 37152582 OWN - NLM STAT- PubMed-not-MEDLINE LR - 20231102 IS - 2046-2069 (Electronic) IS - 2046-2069 (Linking) VI - 13 IP - 20 DP - 2023 May 2 TI - A controllably fabricated polypyrrole nanorods network by doping a tetra-beta-carboxylate cobalt phthalocyanine tetrasodium salt for enhanced ammonia sensing at room temperature. PG - 13725-13734 LID - 10.1039/d3ra00103b [doi] AB - The morphology adjustment and functional doping optimization of polypyrrole (PPy) are of great significance in improving its gas sensing performance. Here, the PPy-0.5TcCoPc nanorods with a uniform dispersed 3-D network were prepared using one-step in situ polymerization using the electrostatic interaction between dopant counterion substituents in tetra-beta-carboxylate cobalt phthalocyanine tetrasodium salt (TcCoPcTs) with larger space structure and pyrrole (Py) molecules, in which TcCoPcTs is not only used as a dopant molecule crosslinking PPy chains to obtain a 3-D network, thus improving the conductivity, but also as a sensor accelerator to improve the gas-sensing performance. The resulting PPy-TcCoPc hybrid exhibits superior NH(3)-sensing properties than PPy and tetra-beta-carboxylate cobalt phthalocyanine (TcCoPc) under the same test conditions, especially the PPy-0.5TcCoPc sensor shows ultrafast response/recovery time to 50 ppm NH(3) (8.1 s/370.8 s), low detection limit of 8.1 ppb and excellent gas selectivity at room temperature (20 degrees C). Besides, the PPy-0.5TcCoPc sensor also maintains superior response (49.3% to 50 ppm NH(3)), humidity resistance and conspicuous stability over 45 days. The excellent NH(3)-sensing performance of the PPy-0.5TcCoPc hybrid arises from the excellent gas selectivity of TcCoPc, the remarkable response mechanism between PPy and NH(3), the high electrical conductivity, abundant active sites and good electron transport ability of the unique 3-D network with large specific surface area. The morphology regulation and functional doping optimization strategy of TcCoPcTs doped PPy broaden the research direction of ideal gas sensor materials. CI - This journal is (c) The Royal Society of Chemistry. FAU - Gai, Shijie AU - Gai S AUID- ORCID: 0000-0002-9986-6239 AD - Key Laboratory of Functional Inorganic Material Chemistry, Ministry of Education, School of Chemistry and Materials Science, Heilongjiang University Harbin 150080 China wangbin@hlju.edu.cn. FAU - Wang, Xiaolin AU - Wang X AD - School of Material and Chemical Engineering, Heilongjiang Institute of Technology Harbin 150050 P. R. China. FAU - Zhang, Runze AU - Zhang R AD - Key Laboratory of Functional Inorganic Material Chemistry, Ministry of Education, School of Chemistry and Materials Science, Heilongjiang University Harbin 150080 China wangbin@hlju.edu.cn. FAU - Zeng, Kun AU - Zeng K AD - Key Laboratory of Functional Inorganic Material Chemistry, Ministry of Education, School of Chemistry and Materials Science, Heilongjiang University Harbin 150080 China wangbin@hlju.edu.cn. FAU - Miao, Shoulei AU - Miao S AD - Key Laboratory of Functional Inorganic Material Chemistry, Ministry of Education, School of Chemistry and Materials Science, Heilongjiang University Harbin 150080 China wangbin@hlju.edu.cn. FAU - Wu, Yiqun AU - Wu Y AD - Key Laboratory of Functional Inorganic Material Chemistry, Ministry of Education, School of Chemistry and Materials Science, Heilongjiang University Harbin 150080 China wangbin@hlju.edu.cn. AD - Shanghai Institute of Optics and Fine Mechanics, Chinese Academy of Sciences P.O. Box 800216 Shanghai 201800 China. FAU - Wang, Bin AU - Wang B AUID- ORCID: 0000-0002-2703-5663 AD - Key Laboratory of Functional Inorganic Material Chemistry, Ministry of Education, School of Chemistry and Materials Science, Heilongjiang University Harbin 150080 China wangbin@hlju.edu.cn. LA - eng PT - Journal Article DEP - 20230504 PL - England TA - RSC Adv JT - RSC advances JID - 101581657 PMC - PMC10158350 COIS- There are no conflicts to declare. EDAT- 2023/05/08 06:42 MHDA- 2023/05/08 06:43 PMCR- 2023/05/04 CRDT- 2023/05/08 04:04 PHST- 2023/01/06 00:00 [received] PHST- 2023/04/13 00:00 [accepted] PHST- 2023/05/08 06:43 [medline] PHST- 2023/05/08 06:42 [pubmed] PHST- 2023/05/08 04:04 [entrez] PHST- 2023/05/04 00:00 [pmc-release] AID - d3ra00103b [pii] AID - 10.1039/d3ra00103b [doi] PST - epublish SO - RSC Adv. 2023 May 4;13(20):13725-13734. doi: 10.1039/d3ra00103b. eCollection 2023 May 2.