文献类型：期刊文献

英文题名：Oriented cellulose scaffold-based carbonized wood-supported phase change materials with stable morphology and high thermal energy conversion efficiency

作者：Zhang, Tao[1,2,3] Zhu, Juya[1,2,3] Yang, Pei[1,2,3] Chen, Weimin[1,2,3] Tian, Qingwen[4,5,6] Li, Xinghui[7] Chen, Minzhi[1,2,3] Zhou, Xiaoyan[1,2,3]

第一作者：Zhang, Tao

通信作者：Chen, MZ[1];Zhou, XY[1];Li, XH[2]

机构：[1]Nanjing Forestry Univ, Coinnovat Ctr Efficient Proc & Utilizat Forest Res, Nanjing 210037, Peoples R China;[2]Int Innovat Ctr Forest Chem & Mat, Nanjing 210037, Peoples R China;[3]Jiangsu Engn Res Ctr Fast Growing Trees & Agrifibe, Nanjing 210037, Peoples R China;[4]Chinese Acad Forestry, Inst Chem Ind Forest Prod, Nanjing 210042, Peoples R China;[5]Shandong Huatai Paper Co Ltd, Dongying 257335, Peoples R China;[6]Shandong Yellow Triangle Biotechnol Ind Res Inst C, Dongying 257335, Peoples R China;[7]Yunnan Forestry Technol Coll, Kunming 650000, Peoples R China

年份：2025

卷号：309

外文期刊名：INTERNATIONAL JOURNAL OF BIOLOGICAL MACROMOLECULES

收录：;EI(收录号：20251418180222);Scopus(收录号：2-s2.0-105001683761);WOS:【SCI-EXPANDED(收录号:WOS:001464254600001)】；

基金：The authors are grateful to the National Natural Science Foundation of China (Grant No. 32271784) , the National Key Research and Devel-opment Program of China (2021YFD2200602) , the China Scholarship Council (202308320333) , the Postgraduate Research & Practice Inno-vation Program of Jiangsu Province (KYCX23_1187) , the Advanced Analysis and Testing Center of Nanjing Forestry University.

语种：英文

外文关键词：Phase change materials; Carbonized wood; Thermal management

摘要：Phase change materials are essential for sustainable thermal management, but challenges such as leakage, formability loss, low thermal conductivity, and poor photo-thermal conversion efficiency limit their stability and versatility. Herein, we propose a simple yet effective carbonization strategy that leverages the inherent threedimensional, oriented, and hierarchical cellulose skeleton of carbonized wood (CW) to support polyethylene glycol (PEG). When the carbonization temperature is 1000 degrees C and the heating rate is 3-5 degrees C/min, the CW's maximum specific surface area and average pore diameter reach as high as 598.19 m2/g and 3.25 nm, respectively. Furthermore, the thermal conductivity of the CW-PEG composite phase change energy storage materials (CW-PEG composite PCESMs) increases to 0.434 W/m & sdot;K. The CW-PEG composite PCESMs exhibit a melting enthalpy of 130.5 J/g and an energy storage efficiency of 99.8 %. The surface temperature variations captured by the infrared camera during the heating and cooling cycles underscore the outstanding solar energy conversion efficiency of CW-PEG composite PCESMs. Moreover, even after 50 cycles, the phase change enthalpy retains 95 %, highlighting the CW-PEG composite PCESMs promising potential for energy-efficient building materials and cold chain transportation.