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  1. Article ; Online: Anode-free Na metal batteries developed by nearly fully reversible Na plating on the Zn surface.

    Dahunsi, Olusola John / Gao, Siyuan / Kaelin, Jacob / Li, Bomin / Abdul Razak, Iddrisu B / An, Bowen / Cheng, Yingwen

    Nanoscale

    2023  Volume 15, Issue 7, Page(s) 3255–3262

    Abstract: The anode-free battery architecture has recently emerged as a promising platform for lithium and sodium metal batteries as it not only offers the highest possible energy density, but also eliminates the need for handling hazardous metal electrodes during ...

    Abstract The anode-free battery architecture has recently emerged as a promising platform for lithium and sodium metal batteries as it not only offers the highest possible energy density, but also eliminates the need for handling hazardous metal electrodes during cell manufacturing. However, such batteries usually suffer from much faster capacity decay and are much more sensitive to even trace levels of irreversible side reactions on the anode, especially for the more reactive Na metal. This work systematically investigates electrochemical interfaces for Na plating and stripping and describes the use of the Zn surface to develop nearly fully reversible Na anodes with 1.0 M NaPF
    Language English
    Publishing date 2023-02-16
    Publishing country England
    Document type Journal Article
    ZDB-ID 2515664-0
    ISSN 2040-3372 ; 2040-3364
    ISSN (online) 2040-3372
    ISSN 2040-3364
    DOI 10.1039/d2nr06120a
    Database MEDical Literature Analysis and Retrieval System OnLINE

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  2. Article: Microfluidic, One-Batch Synthesis of Pd Nanocrystals on N-Doped Carbon in Surfactant-Free Deep Eutectic Solvents for Formic Acid Electrochemical Oxidation

    Zhang, Hong / Lu, Ke / Li, Bomin / Liu, Yuzi / Su, Yuanhai / Wang, Rongyue / Cheng, Yingwen

    ACS applied materials & interfaces. 2020 Aug. 28, v. 12, no. 38

    2020  

    Abstract: One of the grand challenges that impedes practical applications of nanomaterials is the lack of robust manufacturing methods that are scalable, cheap, and environmentally friendly. Herein, we address this challenge by developing a microfluidic approach ... ...

    Abstract One of the grand challenges that impedes practical applications of nanomaterials is the lack of robust manufacturing methods that are scalable, cheap, and environmentally friendly. Herein, we address this challenge by developing a microfluidic approach that produces surfactant-free Pd nanocrystals (NCs) uniformly loaded on N-doped porous carbon in a one-batch process. The deep eutectic solvent (DES) prepared from choline chloride and ethylene glycol was employed as a novel synthesis solvent, and its extended hydrogen networks and abundant ionic species effectively stabilize Pd facets and confine nanocrystal sizes without using surfactants. The microreactors provide faster heat exchange and more uniform mass transport, which in combination with DES produced Pd NCs with better-defined shape and predominately exposed Pd (100) facet. Furthermore, we describe that the N-doped functional groups in porous carbon direct dense and uniform heterogeneous growth of Pd NCs in a one-batch process, thereby eliminating a separate catalyst deposition step that is often involved in conventional synthesis. The Pd NCs in the one-batch-produced Pd/C catalysts exhibited a size distribution of ∼13 ± 3.5 nm and a high ESCA of 46.0 m²/g and delivered 362 mA/mg for formic acid electrochemical oxidation with improved stability, demonstrating the unique potentials of microfluidic reactors and DES for the controllable and scalable synthesis of electrocatalyst materials for practical applications.
    Keywords carbon ; catalysts ; choline chloride ; electrochemistry ; ethylene glycol ; formic acid ; heat transfer ; hydrogen ; mass transfer ; nanocrystals ; oxidation ; solvents
    Language English
    Dates of publication 2020-0828
    Size p. 42704-42710.
    Publishing place American Chemical Society
    Document type Article
    Note NAL-AP-2-clean
    ISSN 1944-8252
    DOI 10.1021/acsami.0c10136
    Database NAL-Catalogue (AGRICOLA)

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  3. Article ; Online: High-Energy and Stable Subfreezing Aqueous Zn-MnO

    Gao, Siyuan / Li, Bomin / Tan, Haiyan / Xia, Fan / Dahunsi, Olusola / Xu, Wenqian / Liu, Yuzi / Wang, Rongyue / Cheng, Yingwen

    Advanced materials (Deerfield Beach, Fla.)

    2022  Volume 34, Issue 21, Page(s) e2201510

    Abstract: One major challenge of aqueous Zn- ... ...

    Abstract One major challenge of aqueous Zn-MnO
    Language English
    Publishing date 2022-04-28
    Publishing country Germany
    Document type Journal Article
    ZDB-ID 1474949-X
    ISSN 1521-4095 ; 0935-9648
    ISSN (online) 1521-4095
    ISSN 0935-9648
    DOI 10.1002/adma.202201510
    Database MEDical Literature Analysis and Retrieval System OnLINE

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  4. Article ; Online: Microfluidic, One-Batch Synthesis of Pd Nanocrystals on N-Doped Carbon in Surfactant-Free Deep Eutectic Solvents for Formic Acid Electrochemical Oxidation.

    Zhang, Hong / Lu, Ke / Li, Bomin / Liu, Yuzi / Su, Yuanhai / Wang, Rongyue / Cheng, Yingwen

    ACS applied materials & interfaces

    2020  Volume 12, Issue 38, Page(s) 42704–42710

    Abstract: One of the grand challenges that impedes practical applications of nanomaterials is the lack of robust manufacturing methods that are scalable, cheap, and environmentally friendly. Herein, we address this challenge by developing a microfluidic approach ... ...

    Abstract One of the grand challenges that impedes practical applications of nanomaterials is the lack of robust manufacturing methods that are scalable, cheap, and environmentally friendly. Herein, we address this challenge by developing a microfluidic approach that produces surfactant-free Pd nanocrystals (NCs) uniformly loaded on N-doped porous carbon in a one-batch process. The deep eutectic solvent (DES) prepared from choline chloride and ethylene glycol was employed as a novel synthesis solvent, and its extended hydrogen networks and abundant ionic species effectively stabilize Pd facets and confine nanocrystal sizes without using surfactants. The microreactors provide faster heat exchange and more uniform mass transport, which in combination with DES produced Pd NCs with better-defined shape and predominately exposed Pd (100) facet. Furthermore, we describe that the N-doped functional groups in porous carbon direct dense and uniform heterogeneous growth of Pd NCs in a one-batch process, thereby eliminating a separate catalyst deposition step that is often involved in conventional synthesis. The Pd NCs in the one-batch-produced Pd/C catalysts exhibited a size distribution of ∼13 ± 3.5 nm and a high ESCA of 46.0 m
    Language English
    Publishing date 2020-09-11
    Publishing country United States
    Document type Journal Article
    ISSN 1944-8252
    ISSN (online) 1944-8252
    DOI 10.1021/acsami.0c10136
    Database MEDical Literature Analysis and Retrieval System OnLINE

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  5. Article ; Online: Co

    Li, Bomin / Xia, Fan / Liu, Yiqi / Tan, Haiyan / Gao, Siyuan / Kaelin, Jacob / Liu, Yuzi / Lu, Ke / Marks, Tobin J / Cheng, Yingwen

    Nano letters

    2023  Volume 23, Issue 4, Page(s) 1459–1466

    Abstract: Electrocatalytic nitrate to ammonia conversion is a key reaction for energy and environmental sustainability. This reaction involves complex multi electron and proton transfer steps, and is impeded by the lack of catalyst for promoting both reactivity ... ...

    Abstract Electrocatalytic nitrate to ammonia conversion is a key reaction for energy and environmental sustainability. This reaction involves complex multi electron and proton transfer steps, and is impeded by the lack of catalyst for promoting both reactivity and ammonia selectivity. Here, we demonstrate active motifs based on the Chevrel phase Co
    Language English
    Publishing date 2023-02-09
    Publishing country United States
    Document type Journal Article
    ISSN 1530-6992
    ISSN (online) 1530-6992
    DOI 10.1021/acs.nanolett.2c04828
    Database MEDical Literature Analysis and Retrieval System OnLINE

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  6. Article ; Online: Modulating MnO

    Gao, Siyuan / Li, Bomin / Lu, Ke / Alabidun, Sarat / Xia, Fan / Nickel, Colton / Xu, Tao / Cheng, Yingwen

    ACS applied materials & interfaces

    2021  Volume 13, Issue 20, Page(s) 23724–23731

    Abstract: Metal oxides are essential electrode materials for high-energy-density batteries, but it remains highly challenging to modulate their interfacial charge-transfer process and improve their cycling stability. Here, using ... ...

    Abstract Metal oxides are essential electrode materials for high-energy-density batteries, but it remains highly challenging to modulate their interfacial charge-transfer process and improve their cycling stability. Here, using MnO
    Language English
    Publishing date 2021-05-13
    Publishing country United States
    Document type Journal Article
    ISSN 1944-8252
    ISSN (online) 1944-8252
    DOI 10.1021/acsami.1c04097
    Database MEDical Literature Analysis and Retrieval System OnLINE

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  7. Article ; Online: Synergistics of Fe

    Gao, Siyuan / Xia, Fan / Li, Bomin / Abdul Razak, Iddrisu B / Liu, Yuzi / Lu, Ke / Brown, Dennis E / Wang, Rongyue / Cheng, Yingwen

    ACS applied materials & interfaces

    2021  Volume 13, Issue 15, Page(s) 17791–17799

    Abstract: The practical deployment of advanced Li-S batteries is severely constrained by the uncontrollable lithium polysulfide conversion under realistic conditions. Although a plethora of advanced sulfur hosts and electrocatalysts have been examined, the ... ...

    Abstract The practical deployment of advanced Li-S batteries is severely constrained by the uncontrollable lithium polysulfide conversion under realistic conditions. Although a plethora of advanced sulfur hosts and electrocatalysts have been examined, the fundamental mechanisms are still elusive and predictive design approaches have not yet been established. Here, we examined a series of well-defined Fe-N-C sulfur hosts with systematically varied and strongly coupled Fe
    Language English
    Publishing date 2021-04-06
    Publishing country United States
    Document type Journal Article
    ISSN 1944-8252
    ISSN (online) 1944-8252
    DOI 10.1021/acsami.1c01393
    Database MEDical Literature Analysis and Retrieval System OnLINE

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  8. Article ; Online: Synergistic Multisites Fe

    Lu, Ke / Xia, Fan / Li, Bomin / Liu, Yuzi / Abdul Razak, Iddrisu B / Gao, Siyuan / Kaelin, Jacob / Brown, Dennis E / Cheng, Yingwen

    ACS nano

    2021  Volume 15, Issue 10, Page(s) 16887–16895

    Abstract: Electrochemical hydrogenation of ... ...

    Abstract Electrochemical hydrogenation of N
    Language English
    Publishing date 2021-10-06
    Publishing country United States
    Document type Journal Article
    ISSN 1936-086X
    ISSN (online) 1936-086X
    DOI 10.1021/acsnano.1c07771
    Database MEDical Literature Analysis and Retrieval System OnLINE

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  9. Article: Sodiated NaₓSnSb nanoparticles embedded in N-doped graphene sponges direct uniform Na nucleation and smooth plating for high efficiency Na metal batteries

    Wang, Zhida / Lu, Ke / Xia, Fan / Dahunsi, Olusola / Gao, Siyuan / Li, Bomin / Wang, Rui / Lu, Songtao / Qin, Wei / Cheng, Yingwen / Wu, Xiaohong

    Journal of materials chemistry A. 2021 Mar. 16, v. 9, no. 10

    2021  

    Abstract: The low-cost sodium (Na) metal anode has high specific capacity and is one of the most promising electrode materials for next generation high-energy density batteries. Unfortunately, it is also extremely reactive and suffers from severe side reactions ... ...

    Abstract The low-cost sodium (Na) metal anode has high specific capacity and is one of the most promising electrode materials for next generation high-energy density batteries. Unfortunately, it is also extremely reactive and suffers from severe side reactions with almost all electrolytes, which results in detrimental failures including uncontrollable growth of mossy structures, fast electrolyte depletion and short cycle life. We report here the in situ synthesis of composite sponges with sodiated NaₓSnSb particles embedded in N-doped graphene (NG) frameworks for modulating Na anodes with significantly improved stability and fast charging capability. The sodiated NaₓSnSb composites function as seeding particles that guide low-overpotential and smooth growth of Na metal whereas the NG wrapping layers protect the freshly plated Na metal from detrimental side reactions with the battery electrolyte. As a result, as high as 95% of the freshly plated Na metal can be reversibly stripped during battery operation and this efficiency can last hundreds of cycles. We further show that the Na₃Sb phase in the NaₓSnSb composites played critical roles as sponges with only the Na₁₅Sn₄ phase have much lower performance. Overall, the synergy of guided growth from NaₓSnSb and shielding from NG allows multifunctional hosts that support Na anodes to cycle with nearly unchanged overpotential and charge transfer resistance for >500 cycles in both symmetric cells and full cells. The Na metal remained dense without measurable formation of unsafe dendrite or inactive mossy structures in these novel sponges even after aggressive cycling.
    Keywords anodes ; batteries ; chemistry ; electrolytes ; graphene ; sodium
    Language English
    Dates of publication 2021-0316
    Size p. 6123-6130.
    Publishing place The Royal Society of Chemistry
    Document type Article
    Note NAL-AP-2-clean
    ZDB-ID 2702232-8
    ISSN 2050-7496 ; 2050-7488
    ISSN (online) 2050-7496
    ISSN 2050-7488
    DOI 10.1039/d0ta11499e
    Database NAL-Catalogue (AGRICOLA)

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  10. Article: Extraordinary rate capability achieved by a 3D “skeleton/skin” carbon aerogel–polyaniline hybrid with vertically aligned pores

    Liu, Mingkai / Li, Bomin / Zhou, Hang / Chen, Cong / Liu, Yuqing / Liu, Tianxi

    Chemical communications. 2017 Mar. 2, v. 53, no. 19

    2017  

    Abstract: A 3D “skeleton/skin” carbon aerogel–polyaniline (CA–PANI) hybrid with vertically aligned pores exhibits an extraordinary rate capability. A high capacity retention (95%) has been achieved when the current density is increased from 1 to 100 A g−1. ...

    Abstract A 3D “skeleton/skin” carbon aerogel–polyaniline (CA–PANI) hybrid with vertically aligned pores exhibits an extraordinary rate capability. A high capacity retention (95%) has been achieved when the current density is increased from 1 to 100 A g−1.
    Keywords carbon ; chemical compounds ; chemical reactions
    Language English
    Dates of publication 2017-0302
    Size p. 2810-2813.
    Publishing place The Royal Society of Chemistry
    Document type Article
    ZDB-ID 1472881-3
    ISSN 1364-548X ; 1359-7345 ; 0009-241X
    ISSN (online) 1364-548X
    ISSN 1359-7345 ; 0009-241X
    DOI 10.1039/c7cc00121e
    Database NAL-Catalogue (AGRICOLA)

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