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The highly innovative synthetic method involves producing \u03b1\u2010MnO\n                    <jats:sub>2<\/jats:sub>\n                    attached to PPy oligomers under low\u2010temperature conditions. Subsequently, Ag\n                    <jats:sup>+<\/jats:sup>\n                    ions are in situ intercalated into the 2 \u00d7 2 tunnels in \u03b1\u2010MnO\n                    <jats:sub>2<\/jats:sub>\n                    to generate Ag\u2010HMO\u2010incorporated PPy. Calculations based on density functional theory (DFT) yield negative formation energies, suggesting that Ag\u2010HMO can be formed through the tunnel doping of Ag\n                    <jats:sup>+<\/jats:sup>\n                    in \u03b1\u2010MnO\n                    <jats:sub>2<\/jats:sub>\n                    . Highly crystalline 2D composite mats of Ag\u2010HMO\/PPy (PAgMn) with interconnected Ag\u2010HMO nanorod networks with a thickness of \u22481 nm are demonstrated by electron and atomic force microscopy images. Electrochemical detection of formaldehyde on PAgMn\u2010modified screen\u2010printed electrodes opens new prospects for real\u2010time food adulterant sensors. PAgMn is also utilized as electrodes for supercapacitors with a high specific capacitance of 601 mF\u00a0cm\n                    <jats:sup>\u22122<\/jats:sup>\n                    . An all\u2010solid\u2010state asymmetric supercapacitor device assembled with PAgMn and activated carbon as negative and positive electrodes demonstrates outstanding energy storage capability with a remarkable energy density of 6.16 mWh\u00a0cm\n                    <jats:sup>\u22122<\/jats:sup>\n                    at a power density of 6300 mW\u00a0cm\n                    <jats:sup>\u22122<\/jats:sup>\n                    .\n                  <\/jats:p>","DOI":"10.1002\/smtd.202401699","type":"journal-article","created":{"date-parts":[[2025,2,16]],"date-time":"2025-02-16T11:20:41Z","timestamp":1739704841000},"update-policy":"https:\/\/doi.org\/10.1002\/crossmark_policy","source":"Crossref","is-referenced-by-count":11,"title":["In Situ Generation of Porous Ag\u2010Hollandite\/Polypyrrole 2D Mats at the Water\/Chloroform Interface for Dual Applications in Energy Storage and Electrochemical 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