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Your search keyword '"Maoyu, Wang"' showing total 4 results
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4 results on '"Maoyu, Wang"'

1. Ultrahigh Oxygen Evolution Reaction Activity Achieved Using Ir Single Atoms on Amorphous CoOx Nanosheets

Author

Qing Zhang, Meng Gu, Maoyu Wang, Xuming Yang, Chao Cai, Xiaotao Zu, Yuanmin Zhu, George E. Sterbinsky, Zhenxing Feng, Duojie Wu, Qi Wang, and Shaobo Han

Subjects
Materials science, Chemical engineering, 010405 organic chemistry, Oxygen evolution, General Chemistry, 010402 general chemistry, 01 natural sciences, Catalysis, Renewable energy storage, 0104 chemical sciences, Amorphous solid
Abstract

Developing efficient electrocatalysts for an oxygen evolution reaction (OER) is important for renewable energy storage. Here, we design high-density Ir single-atom catalysts supported by CoOx amorp...

Published
2020

2. Phthalocyanine Precursors To Construct Atomically Dispersed Iron Electrocatalysts

Author

Yang Wang, Qi Wang, Zisheng Zhang, Xing Zhang, Yongye Liang, Marcos Lucero, Maoyu Wang, Zhenxing Feng, Xiaoxiao Li, Meng Gu, and Zhan Jiang

Subjects
Materials science, 010405 organic chemistry, Iron phthalocyanine, chemistry.chemical_element, General Chemistry, 010402 general chemistry, 01 natural sciences, Catalysis, 0104 chemical sciences, Metal, chemistry.chemical_compound, chemistry, Chemical engineering, visual_art, visual_art.visual_art_medium, Phthalocyanine, Oxygen reduction reaction, Carbon, Zeolitic imidazolate framework
Abstract

Carbon materials embedded with atomically dispersed metal sites have recently demonstrated intriguing performance as electrocatalysts. However, it remains challenging to construct abundant single m...

Published
2019

3. S-Doped MoP Nanoporous Layer Toward High-Efficiency Hydrogen Evolution in pH-Universal Electrolyte

Author

Jose L. Mendoza-Cortes, Kun Liang, Maoyu Wang, George E. Sterbinsky, Zhenxing Feng, Srimanta Pakhira, Licheng Ju, Yang Yang, Yingge Du, A. Nijamudheen, Zhenzhong Yang, and Carlos I. Aguirre-Velez

Subjects
Materials science, 010405 organic chemistry, Nanoporous, Doping, General Chemistry, Electrolyte, 010402 general chemistry, 01 natural sciences, Catalysis, 0104 chemical sciences, Chemical engineering, S doping, Hydrogen evolution, Metal catalyst, Layer (electronics)
Abstract

In this study, we report a nonprecious metal catalyst for high-efficiency hydrogen evolution reaction (HER). A self-organized S-doped MoP nanoporous layer (S-MoP NPL) is achieved through a facile e...

Published
2018

4. Unveiling Active Sites of CO2 Reduction on Nitrogen-Coordinated and Atomically Dispersed Iron and Cobalt Catalysts

Author

David A. Cullen, Fuping Pan, Maoyu Wang, Zhenxing Feng, Gang Wu, Ying Li, Kexi Liu, Guofeng Wang, Karren L. More, and Hanguang Zhang

Subjects
Chemistry, chemistry.chemical_element, 02 engineering and technology, General Chemistry, 010402 general chemistry, 021001 nanoscience & nanotechnology, Electrocatalyst, 01 natural sciences, Redox, Nitrogen, Catalysis, Dissociation (chemistry), 0104 chemical sciences, Metal, Crystallography, visual_art, visual_art.visual_art_medium, 0210 nano-technology, Cobalt, Faraday efficiency
Abstract

Herein, we report the exploration of understanding the reactivity and structure of atomically dispersed M–N4 (M = Fe and Co) sites for the CO2 reduction reaction (CO2RR). Nitrogen coordinated Fe or Co site atomically dispersed into carbons (M–N–C) containing bulk- and edge-hosted M–N4 coordination were prepared by using Fe- or Co-doped metal–organic framework precursors, respectively, which were further studied as ideal model catalysts. Fe is intrinsically more active than Co in M–N4 for the reduction of CO2 to CO, in terms of a larger current density and a higher CO Faradaic efficiency (FE) (93% vs. 45%). First principle computations elucidated that the edge-hosted M–N2+2–C8 moieties bridging two adjacent armchair-like graphitic layers is the active sites for the CO2RR. They are much more active than previously proposed bulk-hosted M–N4–C10 moieties embedded compactly in a graphitic layer. During the CO2RR, when the dissociation of *COOH occurs on the M–N2+2–C8, the metal atom is the site for the adsorpt...

Published
2018

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