|
|||||
|
|
| A robust bifunctional catalyst for rechargeable Zn-air batteries:Ultrathin NiFe-LDH nanowalls vertically anchored on soybeanderived Fe-N-C matrix | |
| 作者姓名： | Meng Zhang Jiting Zhang Siyi Ran Lingxi Qiu Wei Sun Ying Yu Jisheng Chen Zhihong Zhu |
| 作者单位： | Institute of Nano-science and Nano-technology;Key Laboratory of Laser Technology and Optoelectronic Functional Materials of Hainan Province |
| 基金项目： | self-determined research funds of CCNU from the colleges'basic research and operation of MOE(Nos.CCNU19TS038,2019QN017);the Natural Science Foundation of Hubei Province(No.2019CFB606);the Wuhan Planning Project of Science and Technology(No.2018010401011294);the National Natural Science Foundation of China(Nos.52072139,21665007,21964007);the National Natural Science Foundation of Hainan Province of China(No.2019RC188). |
| 摘 要： | ABSTRACT NiFe layered double hydroxide(NiFe-LDH)nanosheets and metal-nitrogen-carbon materials(M-N-C,M=Ni,Fe,Co,etc.)are supreme catalysts in the oxygen evolution reaction(OER)and oxygen reduction reaction(ORR)process,respectively.Nevertheless,the monotonic performance and insufficient stability severely hamper their practical application in rechargeable batteries.Herein,we simultaneously combine ultrathin NiFe-LDH nanowalls with renewable soybean-derived Fe-N-C matrix to obtain a hybrid materials(NiFe-LDH/FeSoy-CNSs-A),which exhibits robust catalytic activities for OER(Ej=10=1.53 V vs.RHE)and ORR(E1/2=0.91 V vs.RHE),with a top-notch battery parameters and stability in assembled rechargeable Zn-air batteries.Intensive investigations indicate that the vertically dispersed NiFe-LDH nanosheets,Fe-N-C matrix derived from soybean and the strong synergy between them are responsible for the unprecedented OER and ORR performances.The key role of intrinsic N defects involved in the hybrid materials is firstly specified by ultrasoundassisted extraction of soy protein from soybean.The exquisite design can facilitate the utilization of sustainable biomass-derived catalysts,and the mechanism investigations of N defects and oxygenic groups on the structure-activity relationship can stimulate the progress of other functional hybrid electrocatalysts. |
| 关 键 词： | biomass Fe-N-C NiFe-LDH oxygen reduction reaction oxygen evolution reaction rechargeable Zn-air batteries |
A robust bifunctional catalyst for rechargeable Zn-air batteries: Ultrathin NiFe-LDH nanowalls vertically anchored on soybean-derived Fe-N-C matrix |
|
| Meng Zhang,Jiting Zhang,Siyi Ran,Lingxi Qiu,Wei Sun,Ying Yu,Jisheng Chen,Zhihong Zhu.A robust bifunctional catalyst for rechargeable Zn-air batteries:Ultrathin NiFe-LDH nanowalls vertically anchored on soybeanderived Fe-N-C matrix[J].Nano Research,2021,14(4):1175-1186. | |
| Authors: | Zhang Meng Zhang Jiting Ran Siyi Qiu Lingxi Sun Wei Yu Ying Chen Jisheng Zhu Zhihong |
| Affiliation: | 1.Institute of Nano-science and Nano-technology, College of Physical Science and Technology, Central China Normal University, Wuhan, 430079, China ;2.Key Laboratory of Laser Technology and Optoelectronic Functional Materials of Hainan Province, College of Chemistry and Chemical Engineering, Hainan Normal University, Haikou, 571158, China ; |
| Abstract: | NiFe layered double hydroxide (NiFe-LDH) nanosheets and metal-nitrogen-carbon materials (M-N-C, M = Ni, Fe, Co, etc.) are supreme catalysts in the oxygen evolution reaction (OER) and oxygen reduction reaction (ORR) process, respectively. Nevertheless, the monotonic performance and insufficient stability severely hamper their practical application in rechargeable batteries. Herein, we simultaneously combine ultrathin NiFe-LDH nanowalls with renewable soybean-derived Fe-N-C matrix to obtain a hybrid materials (NiFe-LDH/FeSoy-CNSs-A), which exhibits robust catalytic activities for OER (Ej=10 = 1.53 V vs. RHE) and ORR (E1/2 = 0.91 V vs. RHE), with a top-notch battery parameters and stability in assembled rechargeable Zn-air batteries. Intensive investigations indicate that the vertically dispersed NiFe-LDH nanosheets, Fe-N-C matrix derived from soybean and the strong synergy between them are responsible for the unprecedented OER and ORR performances. The key role of intrinsic N defects involved in the hybrid materials is firstly specified by ultrasoundassisted extraction of soy protein from soybean. The exquisite design can facilitate the utilization of sustainable biomass-derived catalysts, and the mechanism investigations of N defects and oxygenic groups on the structure-activity relationship can stimulate the progress of other functional hybrid electrocatalysts.  |
| Keywords: | |
| 本文献已被 维普 SpringerLink 等数据库收录！ | |
