{"status":"ok","message-type":"work","message-version":"1.0.0","message":{"indexed":{"date-parts":[[2026,1,8]],"date-time":"2026-01-08T19:15:24Z","timestamp":1767899724355,"version":"3.49.0"},"reference-count":53,"publisher":"MDPI AG","issue":"9","license":[{"start":{"date-parts":[[2020,8,29]],"date-time":"2020-08-29T00:00:00Z","timestamp":1598659200000},"content-version":"vor","delay-in-days":0,"URL":"https:\/\/creativecommons.org\/licenses\/by\/4.0\/"}],"funder":[{"DOI":"10.13039\/501100001809","name":"Natural Science Foundation of China","doi-asserted-by":"publisher","award":["21908204"],"award-info":[{"award-number":["21908204"]}],"id":[{"id":"10.13039\/501100001809","id-type":"DOI","asserted-by":"publisher"}]},{"DOI":"10.13039\/501100001809","name":"Natural Science Foundation of China","doi-asserted-by":"publisher","award":["51674225"],"award-info":[{"award-number":["51674225"]}],"id":[{"id":"10.13039\/501100001809","id-type":"DOI","asserted-by":"publisher"}]},{"DOI":"10.13039\/501100001809","name":"Natural Science Foundation of China","doi-asserted-by":"publisher","award":["51874259"],"award-info":[{"award-number":["51874259"]}],"id":[{"id":"10.13039\/501100001809","id-type":"DOI","asserted-by":"publisher"}]}],"content-domain":{"domain":[],"crossmark-restriction":false},"short-container-title":["Nanomaterials"],"abstract":"<jats:p>The growing demand for high performance from supercapacitors has inspired the development of porous nanocomposites using renewable and naturally available materials. In this work, a formaldehyde-free phenolic resin using monosaccharide-based furfural was synthesized to act as the carbon precursor. One dimensional halloysite nanotube (HNT) with high porosity and excellent cation\/anion exchange capacity was mixed with the phenol-furfural resin to fabricate carbonaceous nanocomposite HNT\/C. Their structure and porosity were characterized. The effects of the halloysite nanotube amount and carbonization temperature on the electrochemical properties of HNT\/C were explored. HNT\/C exhibited rich porosity, involving a large specific surface area 253 m2\u00b7g\u22121 with a total pore volume of 0.27 cm3\u00b7g\u22121. The electrochemical performance of HNT\/C was characterized in the three-electrode system and showed enhanced specific capacitance of 146 F\u00b7g\u22121 at 0.2 A g\u22121 (68 F\u00b7g\u22121 for pristine carbon) in electrolyte (6 mol\u00b7L\u22121 KOH) and a good rate capability of 62% at 3 A g\u22121. It also displayed excellent cycle performance with capacitance retention of 98.5% after 500 cycles. The symmetric supercapacitors with HNT\/C-1:1.5-800 electrodes were fabricated, exhibiting a high energy density of 20.28 Wh\u00b7Kg\u22121 at a power density of 100 W\u00b7Kg\u22121 in 1 M Na2SO4 electrolyte. The present work provides a feasible method for preparing composite electrode materials with a porous structure from renewable phenol-furfural resin and HNT. The excellent supercapacitance highlights the potential applications of HNT\/C in energy storage.<\/jats:p>","DOI":"10.3390\/nano10091703","type":"journal-article","created":{"date-parts":[[2020,8,30]],"date-time":"2020-08-30T06:06:22Z","timestamp":1598767582000},"page":"1703","update-policy":"https:\/\/doi.org\/10.3390\/mdpi_crossmark_policy","source":"Crossref","is-referenced-by-count":18,"title":["Preparation and Performance of Porous Carbon Nanocomposite from Renewable Phenolic Resin and Halloysite Nanotube"],"prefix":"10.3390","volume":"10","author":[{"given":"Xiaomeng","family":"Yang","sequence":"first","affiliation":[{"name":"School of Chemical Engineering, Zhengzhou University, Zhengzhou 450001, China"}],"role":[{"role":"author","vocabulary":"crossref"}]},{"given":"Xiaorui","family":"Zeng","sequence":"additional","affiliation":[{"name":"School of Chemical Engineering, Zhengzhou University, Zhengzhou 450001, China"}],"role":[{"role":"author","vocabulary":"crossref"}]},{"given":"Guihong","family":"Han","sequence":"additional","affiliation":[{"name":"School of Chemical Engineering, Zhengzhou University, Zhengzhou 450001, China"}],"role":[{"role":"author","vocabulary":"crossref"}]},{"given":"Dong","family":"Sui","sequence":"additional","affiliation":[{"name":"Key Laboratory of Function-Oriented Porous Materials, College of Chemistry and Chemical Engineering, Luoyang Normal University, Luoyang 471934, China"}],"role":[{"role":"author","vocabulary":"crossref"}]},{"given":"Xiangyu","family":"Song","sequence":"additional","affiliation":[{"name":"School of Chemical Engineering, Zhengzhou University, Zhengzhou 450001, China"}],"role":[{"role":"author","vocabulary":"crossref"}]},{"given":"Yongsheng","family":"Zhang","sequence":"additional","affiliation":[{"name":"School of Chemical Engineering, Zhengzhou University, Zhengzhou 450001, China"}],"role":[{"role":"author","vocabulary":"crossref"}]}],"member":"1968","published-online":{"date-parts":[[2020,8,29]]},"reference":[{"key":"ref_1","doi-asserted-by":"crossref","first-page":"2520","DOI":"10.1039\/b813846j","article-title":"Carbon-based materials as supercapacitor electrodes","volume":"38","author":"Zhang","year":"2009","journal-title":"Chem. 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