Zhou, H., Yang, T., Kou, Z., Shen, L., Zhao, Y., Wang, Z., Wang, X., Yang, Z., Du, J., Xu, J., Chen, M., Tian, L., Guo, W., Wang, Q., Lv, H., Chen, W., Hong, X., Luo, J., He, D., & Wu, Y. (2020). Negative Pressure Pyrolysis Induced Highly Accessible Single Sites Dispersed on 3D Graphene Frameworks for Enhanced Oxygen Reduction. Angewandte Chemie - International Edition, 59(46), 20465-20469. https://doi.org/10.1002/anie.202009700
Zhou, Huang ; Yang, Tong ; Kou, Zongkui et al. / Negative Pressure Pyrolysis Induced Highly Accessible Single Sites Dispersed on 3D Graphene Frameworks for Enhanced Oxygen Reduction. In: Angewandte Chemie - International Edition. 2020 ; Vol. 59, No. 46. pp. 20465-20469.
@article{4f4912e5a0a848469b967ab91bd1a1de,
title = "Negative Pressure Pyrolysis Induced Highly Accessible Single Sites Dispersed on 3D Graphene Frameworks for Enhanced Oxygen Reduction",
abstract = "Herein, we report a negative pressure pyrolysis to access dense single metal sites (Co, Fe, Ni etc.) with high accessibility dispersed on three-dimensional (3D) graphene frameworks (GFs), during which the differential pressure between inside and outside of metal–organic frameworks (MOFs) promotes the cleavage of the derived carbon layers and gradual expansion of mesopores. In situ transmission electron microscopy and Brunauer–Emmett–Teller tests reveal that the formed 3D GFs possess an enhanced mesoporosity and external surface area, which greatly favor the mass transport and utilization of metal sites. This contributes to an excellent oxygen reduction reaction (ORR) activity (half-wave potential of 0.901 V vs. RHE). Theoretical calculations verify that selective carbon cleavage near Co centers can efficiently lower the overall ORR theoretical overpotential in comparison with intact atomic configuration.",
keywords = "3D graphene frameworks, metal–organic frameworks, negative pressure, oxygen reduction reaction, single sites",
author = "Huang Zhou and Tong Yang and Zongkui Kou and Lei Shen and Yafei Zhao and Zhiyuan Wang and Xiaoqian Wang and Zhenkun Yang and Junyi Du and Jie Xu and Min Chen and Lin Tian and Wenxin Guo and Qiuping Wang and Hongwei Lv and Wenxing Chen and Xun Hong and Jun Luo and Daping He and Yuen Wu",
note = "Publisher Copyright: {\textcopyright} 2020 Wiley-VCH GmbH",
year = "2020",
month = nov,
day = "9",
doi = "10.1002/anie.202009700",
language = "English",
volume = "59",
pages = "20465--20469",
journal = "Angewandte Chemie - International Edition",
issn = "1433-7851",
publisher = "John Wiley and Sons Ltd",
number = "46",
}
Zhou, H, Yang, T, Kou, Z, Shen, L, Zhao, Y, Wang, Z, Wang, X, Yang, Z, Du, J, Xu, J, Chen, M, Tian, L, Guo, W, Wang, Q, Lv, H, Chen, W, Hong, X, Luo, J, He, D & Wu, Y 2020, 'Negative Pressure Pyrolysis Induced Highly Accessible Single Sites Dispersed on 3D Graphene Frameworks for Enhanced Oxygen Reduction', Angewandte Chemie - International Edition, vol. 59, no. 46, pp. 20465-20469. https://doi.org/10.1002/anie.202009700
Negative Pressure Pyrolysis Induced Highly Accessible Single Sites Dispersed on 3D Graphene Frameworks for Enhanced Oxygen Reduction. / Zhou, Huang; Yang, Tong; Kou, Zongkui et al.
In:
Angewandte Chemie - International Edition, Vol. 59, No. 46, 09.11.2020, p. 20465-20469.
Research output: Contribution to journal › Article › peer-review
TY - JOUR
T1 - Negative Pressure Pyrolysis Induced Highly Accessible Single Sites Dispersed on 3D Graphene Frameworks for Enhanced Oxygen Reduction
AU - Zhou, Huang
AU - Yang, Tong
AU - Kou, Zongkui
AU - Shen, Lei
AU - Zhao, Yafei
AU - Wang, Zhiyuan
AU - Wang, Xiaoqian
AU - Yang, Zhenkun
AU - Du, Junyi
AU - Xu, Jie
AU - Chen, Min
AU - Tian, Lin
AU - Guo, Wenxin
AU - Wang, Qiuping
AU - Lv, Hongwei
AU - Chen, Wenxing
AU - Hong, Xun
AU - Luo, Jun
AU - He, Daping
AU - Wu, Yuen
N1 - Publisher Copyright:
© 2020 Wiley-VCH GmbH
PY - 2020/11/9
Y1 - 2020/11/9
N2 - Herein, we report a negative pressure pyrolysis to access dense single metal sites (Co, Fe, Ni etc.) with high accessibility dispersed on three-dimensional (3D) graphene frameworks (GFs), during which the differential pressure between inside and outside of metal–organic frameworks (MOFs) promotes the cleavage of the derived carbon layers and gradual expansion of mesopores. In situ transmission electron microscopy and Brunauer–Emmett–Teller tests reveal that the formed 3D GFs possess an enhanced mesoporosity and external surface area, which greatly favor the mass transport and utilization of metal sites. This contributes to an excellent oxygen reduction reaction (ORR) activity (half-wave potential of 0.901 V vs. RHE). Theoretical calculations verify that selective carbon cleavage near Co centers can efficiently lower the overall ORR theoretical overpotential in comparison with intact atomic configuration.
AB - Herein, we report a negative pressure pyrolysis to access dense single metal sites (Co, Fe, Ni etc.) with high accessibility dispersed on three-dimensional (3D) graphene frameworks (GFs), during which the differential pressure between inside and outside of metal–organic frameworks (MOFs) promotes the cleavage of the derived carbon layers and gradual expansion of mesopores. In situ transmission electron microscopy and Brunauer–Emmett–Teller tests reveal that the formed 3D GFs possess an enhanced mesoporosity and external surface area, which greatly favor the mass transport and utilization of metal sites. This contributes to an excellent oxygen reduction reaction (ORR) activity (half-wave potential of 0.901 V vs. RHE). Theoretical calculations verify that selective carbon cleavage near Co centers can efficiently lower the overall ORR theoretical overpotential in comparison with intact atomic configuration.
KW - 3D graphene frameworks
KW - metal–organic frameworks
KW - negative pressure
KW - oxygen reduction reaction
KW - single sites
UR - http://www.scopus.com/inward/record.url?scp=85090142573&partnerID=8YFLogxK
U2 - 10.1002/anie.202009700
DO - 10.1002/anie.202009700
M3 - Article
C2 - 32715586
AN - SCOPUS:85090142573
SN - 1433-7851
VL - 59
SP - 20465
EP - 20469
JO - Angewandte Chemie - International Edition
JF - Angewandte Chemie - International Edition
IS - 46
ER -
Zhou H, Yang T, Kou Z, Shen L, Zhao Y, Wang Z et al. Negative Pressure Pyrolysis Induced Highly Accessible Single Sites Dispersed on 3D Graphene Frameworks for Enhanced Oxygen Reduction. Angewandte Chemie - International Edition. 2020 Nov 9;59(46):20465-20469. doi: 10.1002/anie.202009700
