文献类型：期刊文献

英文题名：Porous carbon materials with improved hydrogen storage capacity by carbonizing Zn(BDC)TED0.5

作者：Li, Renjie[1];Han, Xin[1];Liu, Qiaona[1];Qian, An[1];Shen, Haitao[1];Liu, Jichang[1,2];Pu, Xin[1];Xu, Haitao[1];Mu, Bin[3]

机构：[1]East China Univ Sci & Technol, Sch Chem Engn, State Key Lab Chem Engn, Shanghai 200237, Peoples R China;[2]Shihezi Univ, Sch Chem & Chem Engn, Key Lab Green Proc Chem Engn Xinjiang Bingtuan, Shihezi 832003, Peoples R China;[3]Arizona State Univ, Sch Engn Matter Transport & Energy, 501 East Tyler Mall, Tempe, AZ 85287 USA

年份：2022

卷号：314

外文期刊名：JOURNAL OF SOLID STATE CHEMISTRY

收录：;EI(收录号：20223012393248);WOS:【SCI-EXPANDED(收录号:WOS:000853261700009)】；

基金：We acknowledge fi nancial support from the Joint Fund by the Na- tional Natural Science Foundation of China and PetroChina (Project U1862204) and the National Natural Science Foundation of China (No. 22108074) . Xin Han was partly supported by Shanghai Super Post- doctoral Incentive Program.

语种：英文

外文关键词：MOFs Zn(BDC)TED0.5; Hydrogen storage; Carbonization; Organic ligand modification

摘要：Metal-organic frameworks (MOFs) have promising application prospects in the field of hydrogen storage. However, the application of many MOFs with high hydrogen adsorption capacity is limited by their poor water stability. Herein, a porous carbon material with high hydrogen storage capacity as MOFs and stability is obtained by a simple carbonization method using a series of Zn(BDC)TED0.5 (MOFs) with different ligands (-OH, -NH2 and -CH3) modified as a material. The results of the XRD, SEM, ICP and gas adsorption results showed that the Zn atoms in Zn(BDC)TED0.5 can be removed by carbonization to form porous carbon materials with well-developed pore structures. The carbonized Zn(BDC-CH3)TED0.5 exhibited the best hydrogen storage capacity of 1.91 wt% at 77 K and 1 bar, which was 23% higher than that of Zn(BDC)TED0.5. The promotion of storage capacity can be attributed to the aperture structure of the porous carbon material with a more suitable adsorption performance of hydrogen, which is derived from the intrinsic structure of MOFs. At the same time, the carbonized samples also have good water and chemical stability, which can maintain their gas adsorption capacity even after being immersed in high-concentration hydrochloric acid for several days.