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The d − p orbital hybridization on RhBi bimetallene for highly selective ethanol complete electrooxidation.

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Title: The d − p orbital hybridization on RhBi bimetallene for highly selective ethanol complete electrooxidation.
Authors: Wang, Li-Wen1 (AUTHOR), Xiao, Xue1 (AUTHOR), Zhong, Wei1 (AUTHOR), Yin, Shi-Bin2 (AUTHOR), Li, Ying1,3 (AUTHOR) liying0303@xust.edu.cn, Chen, Yu1 (AUTHOR) chenyu001@snnu.edu.cn, Ai, Xuan1 (AUTHOR) aixuan@snnu.edu.cn
Source: Chemical Engineering Journal. Feb2026, Vol. 530, pN.PAG-N.PAG. 1p.
Subjects: Bimetallic catalysts, Electrocatalysis, Alcohol oxidation, Carbon-carbon bonds, Fuel cells
Abstract: Direct ethanol fuel cells (DEFCs) represent a promising approach for sustainable energy, yet their performance is constrained by low C1 selectivity and rapid catalyst deactivation during ethanol oxidation. In this work, the RhBi bimetallene (RhBi-BML) is synthesized by a one-pot solvothermal method, exhibiting excellent catalytic activity and stability for the ethanol oxidation reaction (EOR). Specifically, the mass activity of the RhBi-BML reaches 1011.1 mA mg Rh −1 at 0.70 V vs. RHE, representing a 17.2-fold increase compared to commercial Rh black (58.9 mA mg Rh −1). Furthermore, using the RhBi-BML as the anode material in a full cell enables the assembled device to deliver a cell voltage of 0.80 V and a peak power density of 15.32 mW cm−2, both of which outperform the corresponding values obtained using commercial Pt/C as the anode. Combined theoretical and experimental studies demonstrate that d–p orbital hybridization plays a critical role in adjusting the electronic structure of the Rh surface, promoting dehydrogenation and C C bond cleavage, thus improving the EOR performance of the RhBi-BML. The insights gained from this study highlight the potential of p-block elements in tuning electronic structures and enhancing C C bond cleavage, offering a promising strategy for designing advanced catalysts for DEFCs. [Display omitted] • RhBi bimetallene is synthesized via a facile one-pot solvothermal method. • RhBi bimetallene exhibits high mass activity, excellent stability, and superior C1 selectivity for ethanol oxidation. • The d–p orbital hybridization facilitates efficient C C bond cleavage during ethanol oxidation. • The full cell delivers a peak power density of 15.32 mW cm−2, surpassing that of commercial Pt/C as the anode. [ABSTRACT FROM AUTHOR]
Copyright of Chemical Engineering Journal is the property of Elsevier B.V. and its content may not be copied or emailed to multiple sites without the copyright holder's express written permission. Additionally, content may not be used with any artificial intelligence tools or machine learning technologies. However, users may print, download, or email articles for individual use. This abstract may be abridged. No warranty is given about the accuracy of the copy. Users should refer to the original published version of the material for the full abstract. (Copyright applies to all Abstracts.)
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  Data: The d − p orbital hybridization on RhBi bimetallene for highly selective ethanol complete electrooxidation.
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  Data: <searchLink fieldCode="AR" term="%22Wang%2C+Li-Wen%22">Wang, Li-Wen</searchLink><relatesTo>1</relatesTo> (AUTHOR)<br /><searchLink fieldCode="AR" term="%22Xiao%2C+Xue%22">Xiao, Xue</searchLink><relatesTo>1</relatesTo> (AUTHOR)<br /><searchLink fieldCode="AR" term="%22Zhong%2C+Wei%22">Zhong, Wei</searchLink><relatesTo>1</relatesTo> (AUTHOR)<br /><searchLink fieldCode="AR" term="%22Yin%2C+Shi-Bin%22">Yin, Shi-Bin</searchLink><relatesTo>2</relatesTo> (AUTHOR)<br /><searchLink fieldCode="AR" term="%22Li%2C+Ying%22">Li, Ying</searchLink><relatesTo>1,3</relatesTo> (AUTHOR)<i> liying0303@xust.edu.cn</i><br /><searchLink fieldCode="AR" term="%22Chen%2C+Yu%22">Chen, Yu</searchLink><relatesTo>1</relatesTo> (AUTHOR)<i> chenyu001@snnu.edu.cn</i><br /><searchLink fieldCode="AR" term="%22Ai%2C+Xuan%22">Ai, Xuan</searchLink><relatesTo>1</relatesTo> (AUTHOR)<i> aixuan@snnu.edu.cn</i>
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  Data: <searchLink fieldCode="JN" term="%22Chemical+Engineering+Journal%22">Chemical Engineering Journal</searchLink>. Feb2026, Vol. 530, pN.PAG-N.PAG. 1p.
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  Data: <searchLink fieldCode="DE" term="%22Bimetallic+catalysts%22">Bimetallic catalysts</searchLink><br /><searchLink fieldCode="DE" term="%22Electrocatalysis%22">Electrocatalysis</searchLink><br /><searchLink fieldCode="DE" term="%22Alcohol+oxidation%22">Alcohol oxidation</searchLink><br /><searchLink fieldCode="DE" term="%22Carbon-carbon+bonds%22">Carbon-carbon bonds</searchLink><br /><searchLink fieldCode="DE" term="%22Fuel+cells%22">Fuel cells</searchLink>
– Name: Abstract
  Label: Abstract
  Group: Ab
  Data: Direct ethanol fuel cells (DEFCs) represent a promising approach for sustainable energy, yet their performance is constrained by low C1 selectivity and rapid catalyst deactivation during ethanol oxidation. In this work, the RhBi bimetallene (RhBi-BML) is synthesized by a one-pot solvothermal method, exhibiting excellent catalytic activity and stability for the ethanol oxidation reaction (EOR). Specifically, the mass activity of the RhBi-BML reaches 1011.1 mA mg Rh −1 at 0.70 V vs. RHE, representing a 17.2-fold increase compared to commercial Rh black (58.9 mA mg Rh −1). Furthermore, using the RhBi-BML as the anode material in a full cell enables the assembled device to deliver a cell voltage of 0.80 V and a peak power density of 15.32 mW cm−2, both of which outperform the corresponding values obtained using commercial Pt/C as the anode. Combined theoretical and experimental studies demonstrate that d–p orbital hybridization plays a critical role in adjusting the electronic structure of the Rh surface, promoting dehydrogenation and C C bond cleavage, thus improving the EOR performance of the RhBi-BML. The insights gained from this study highlight the potential of p-block elements in tuning electronic structures and enhancing C C bond cleavage, offering a promising strategy for designing advanced catalysts for DEFCs. [Display omitted] • RhBi bimetallene is synthesized via a facile one-pot solvothermal method. • RhBi bimetallene exhibits high mass activity, excellent stability, and superior C1 selectivity for ethanol oxidation. • The d–p orbital hybridization facilitates efficient C C bond cleavage during ethanol oxidation. • The full cell delivers a peak power density of 15.32 mW cm−2, surpassing that of commercial Pt/C as the anode. [ABSTRACT FROM AUTHOR]
– Name: AbstractSuppliedCopyright
  Label:
  Group: Ab
  Data: <i>Copyright of Chemical Engineering Journal is the property of Elsevier B.V. and its content may not be copied or emailed to multiple sites without the copyright holder's express written permission. Additionally, content may not be used with any artificial intelligence tools or machine learning technologies. However, users may print, download, or email articles for individual use. This abstract may be abridged. No warranty is given about the accuracy of the copy. Users should refer to the original published version of the material for the full abstract.</i> (Copyright applies to all Abstracts.)
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      – Type: doi
        Value: 10.1016/j.cej.2026.173544
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        Text: English
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      – SubjectFull: Bimetallic catalysts
        Type: general
      – SubjectFull: Electrocatalysis
        Type: general
      – SubjectFull: Alcohol oxidation
        Type: general
      – SubjectFull: Carbon-carbon bonds
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      – SubjectFull: Fuel cells
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      – TitleFull: The d − p orbital hybridization on RhBi bimetallene for highly selective ethanol complete electrooxidation.
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            NameFull: Wang, Li-Wen
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              Text: Feb2026
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              Y: 2026
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