Pt1/Ni6Co1 layered double hydroxides/N-doped graphene for electrochemical non-enzymatic glucose sensing by synergistic enhancement of single atoms and doping
Pt1/Ni6Co1 layered double hydroxides/N-doped graphene for electrochemical non-enzymatic glucose sensing by synergistic enhancement of single atoms and doping
复制标题
Pt1/Ni6Co1层状双氢氧化物/氮掺杂石墨烯通过单原子和掺杂的协同增强实现电化学非酶葡萄糖传感
DOI：
10.1007/s12274-022-4801-9
复制
发表时间：
2022-08
期刊：
影响因子：
9.9
通讯作者：
Minghua Zeng
中科院分区：
文献类型：
--
作者：
Baojun Long;Peiyu Cao;Yuanmeng Zhao;Qianqian Fu;Yan Mo;Yueming Zhai;Juejing Liu;Xingyi Lyu;Tao Li;Xiaofeng Guo;Changsheng Shan;Minghua Zeng
新型单原子催化剂的开发对于高效的电化学催化和传感具有重要意义。本文构建了一种新型的Pt单原子/Ni 6Co 1层状双金属氢氧化物/氮掺杂石墨烯（Pt 1 /Ni 6Co 1 LDHs/NG）催化剂，用于葡萄糖的电化学无酶催化和传感. Pt单原子的负载量随着Co原子的掺杂而增加，从而产生更多的Pt SA的锚定位点。Pt 1 /Ni 6 Co 1 LDHs/NG对葡萄糖的氧化电位为0. 440 V，灵敏度为2 73. 78 µA·mM −1 ·cm −2，分别比Ni（OH）2低85 mV和高15倍. Pt 1 /Ni 6 Co 1 LDHs/NG在5周的测试中也显示出优异的选择性和很好的稳定性。理论和实验结果表明，Pt 1 /Ni 6 Co 1 LDHs/NG的增强性能来源于其与葡萄糖较强的结合能以及Pt SA、Co掺杂和NG的协同效应.本工作为设计高活性的SAC提供了一种通用的策略，以扩展其在电化学传感中的应用。
The development of novel single-atom catalysts is important for highly efficient electrochemical catalysis and sensing. In this work, a novel Pt single atoms (SAs) supported on Ni 6 Co 1 layered double hydroxides/nitrogen-doped graphene (Pt 1 /Ni 6 Co 1 LDHs/NG) was constructed for electrochemical enzyme-free catalysis and sensing towards glucose. The loading of Pt single atoms increases with doping of Co atoms that generate more anchoring sites for Pt SAs. The resulting Pt 1 /Ni 6 Co 1 LDHs/NG exhibits low oxidative potential of 0.440 V with high sensitivity of 273.78 µA·mM −1 ·cm −2 toward glucose, which are 85 mV lower and 15 times higher than those of Ni(OH) 2 , respectively. Pt 1 /Ni 6 Co 1 LDHs/NG also shows excellent selectivity and great stability during 5-week testing. Theoretical and experimental results show that the boosted performance of Pt 1 /Ni 6 Co 1 LDHs/NG originates from its stronger binding energy with glucose and the synergistic effect of Pt SAs, Co doping, and NG. This work provides a general strategy of designing highly active SACs for extending their application in electrochemical sensing.
登录
查看更多内容
杂原子增强有机转化碳催化剂的无金属催化性能
影响因子：
4.5
作者：
Sen S.Shang;Shuang Gao
通讯作者：
Shuang Gao
影响因子：
12.6
作者：
Cheng, Yanxiang;Gong, Xia;Jiang, Lelun
通讯作者：
Jiang, Lelun
Ni(OH)2/N-掺杂石墨烯上的单原子 Pt 增强电化学非酶葡萄糖传感
影响因子：
7.4
作者：
Long, Baojun;Zhao, Yuanmeng;Zeng, Ming-Hua
通讯作者：
Zeng, Ming-Hua
影响因子：
9.5
作者：
Naik, Kusha Kumar;Gangan, Abhijeet;Rout, Chandra Sekhar
通讯作者：
Rout, Chandra Sekhar
影响因子：
9.9
作者：
Lu Shen;Zhen Liang;Zhiyu Chen;Can Wu;X. Hu;J. Zhang;Qing Jiang;Yunbing Wang
通讯作者：
Lu Shen;Zhen Liang;Zhiyu Chen;Can Wu;X. Hu;J. Zhang;Qing Jiang;Yunbing Wang