A ligand design strategy to enhance catalyst stability for efficient formic acid dehydrogenation

被引：5
|
作者：
Guo, Jian [1 ]
Li, Maoliang [2 ]
Yin, Chengkai [2 ]
Li, Xiaobin [1 ]
Wang, Yilin [1 ]
Yuan, Jingcheng [2 ]
Qi, Tiangui [1 ]
机构：
[1] Cent South Univ, Sch Met & Environm, 932,Lushan Rd, Changsha 410083, Hunan, Peoples R China
[2] Hangzhou Katal Catalyst & Met Mat Stock Co Ltd, 7 Kang Qiao Rd, Hangzhou 310015, Zhejiang, Peoples R China
来源：
DALTON TRANSACTIONS | 2023年 / 52卷 / 15期
关键词：
HYDROGEN GENERATION; COMPLEXES; RUTHENIUM; DECOMPOSITION; TEMPERATURE; BEARING; H-2;
D O I：
10.1039/d2dt04079d
中图分类号：
O61 [无机化学];
学科分类号：
070301 ; 081704 ;
摘要：
New Ir complexes bearing N-(methylsulfonyl)-2-pyridinecarboxamide (C1) and N-(phenylsulfonyl)-2-pyridinecarboxamide (C2) were employed as catalysts for aqueous formic acid dehydrogenation (FADH). The ligands were designed to maintain the picolinamide skeleton and introduce strong sigma sulfonamide moieties. C1 and C2 exhibited good stability towards air and concentrated formic acid (FA). During 20 continuous cycles, C1 and C2 could achieve the complete conversion of FA with TONs of 172 916 and 172 187, respectively. C1 achieved a high TOF of 19 500 h(-1) at 90? and an air-stable Ir-H species was observed by H-1 NMR spectroscopy.
引用
收藏
页码：4856 / 4861
页数：6
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