In-situ FTIR spectroscopic studies of electrocatalytic reactions and processes

Ye, Jinyu; Jiang, Yanxia; Sheng, Tian; Sun, Shi‐Gang

doi:10.1016/j.nanoen.2016.06.023

Cited by 139 publications

(83 citation statements)

References 137 publications

(124 reference statements)

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“…The absorption spectrum is divided into the X-ray Absorption Near-Edge Structure (XANES) region and the Extended X-ray Absorption Fine Structure (EXAFS) region; the former examines the oxidation state, coordination number, electronic configuration and site symmetry, whereas the latter provides information on average interatomic distances. Raman spectroscopy is also used to explore the variation in the local structure and oxidation state, as well as the thermal stability of electrode surfaces or electrode-electrolyte interfaces during charge-discharge and heat treatment (Dokko et al, 2002;Hardwick et al, 2008;Membreno et al, 2013;Stancovski and Badilescu, 2013;Wu et al, 2013); FTIR is another effective tool for studying the surface and evolution of electrodeelectrolyte interfaces under cell operating conditions (Aurbach and Chusid, 1997;Chusid et al, 2001;Cheng et al, 2007;Ye et al, 2016). In addition to these spectroscopic techniques, operando SEM (Miller et al, 2013;Hovington et al, 2014;Marceau et al, 2016) and TEM (Liu, S. et al, 2014;Janish and Carter, 2015;Wang, 2015;Chen et al, 2016a;Xu et al, 2016) show the evolution of direct images of cycling electrode at the micro-and nano-scales.…”

Section: Introductionmentioning

confidence: 99%

Application of Operando X-ray Diffraction and Raman Spectroscopies in Elucidating the Behavior of Cathode in Lithium-Ion Batteries

Zhu

Liu²,

Paolella³

et al. 2018

Front. Energy Res.

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With the advances in characterization techniques, various operando/in-situ methods were applied in studying rechargeable batteries in order to improve the electrochemical properties of electrode materials, prolonging the battery life and developing new battery materials. In the present review, we focus on the characterization of electrode materials with operando/in-situ X-ray diffraction and Raman spectroscopies. By correlating the results obtained via these two techniques in different electrode chemistry: (a) intercalation materials, such as layered metal oxides and (b) conversion materials, such as elemental sulfur. We demonstrate the importance of using operando/in-situ techniques in examining the microstructural changes of the electrodes under various operating conditions, in both macro and micro-scales. These techniques also reveal the working and the degradation mechanisms of the electrodes and the possible side reactions involved. The comprehension of these mechanisms is fundamental for ameliorating the electrode materials, enhancing the battery performance and lengthening its cycling life.Keywords: operando/in-situ XRD, operando/in-situ Raman, lithium-sulfur, layered metal oxide, LiFePO 4 , spinel oxide Frontiers in Energy Research | www.frontiersin.org

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Section: Introductionmentioning

confidence: 99%

Application of Operando X-ray Diffraction and Raman Spectroscopies in Elucidating the Behavior of Cathode in Lithium-Ion Batteries

Zhu

Liu²,

Paolella³

et al. 2018

Front. Energy Res.

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“…There have been few review articles on FTIR's applications in batteries . More articles with technical details of ex situ and in situ FTIR have been published on catalysts …”

Section: Applications Of Ftir Spectroscopy In Secondary Battery Studiesmentioning

confidence: 99%

“…[25] More articles with technical details of ex situ and in situ FTIR have been published on catalysts. [162,164,165]…”

Section: Applications Of Ftir Spectroscopy In Secondary Battery Studiesmentioning

confidence: 99%

Applications of Conventional Vibrational Spectroscopic Methods for Batteries Beyond Li‐Ion

Deng

Dong

et al. 2018

Small Methods

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Advanced energy‐storage devices are in tremendous demand to meet the ever‐growing electrification of the economy. To design batteries, it is critical to understand the evolving structures of the electrode materials, the compositions of the solid electrolyte interphase, and the reaction intermediates during the electrochemical processes. To this end, a plethora of characterization techniques are employed in battery research to bridge the fundamental understanding to practical optimization of battery systems. Vibrational spectroscopy methods, including Raman spectroscopy, and Fourier transform infrared (FTIR) spectroscopy are powerful analytic tools for the purposes of battery studies. Here, the usage of Raman and FTIR spectroscopy techniques for secondary batteries, such as lithium‐ion batteries, lithium–sulfur batteries, lithium–oxygen batteries, sodium‐ion batteries, and potassium‐ion batteries, is described.

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“…Operando X-ray diffraction-computed tomography (XRD-CT) [66] and operando hard X-ray microscopy [67] are employed to track space-resolved information, the former probes the crystal structures and transformations at millimeter scale, whereas the latter reveals the dynamic phase transformation process on both single and multi-particles. The diffraction technique measures the collective properties of the electrode, whereas the complimentary information of the local and surface/interface structures, such as the oxidation state of ions, coordination number, average interatomic distances, and electronic configuration changes during the electrochemical process are obtained by operando X-ray absorption spectroscopy (XAS) [68][69][70][71][72][73], Raman spectroscopy [74][75][76][77][78] and Fourier-transform infrared (FTIR) [79][80][81][82]. The electrode changes occurring under working conditions are also observed via operando scanning electron microscopy (SEM) [83][84][85] and (scanning) transmission electron microscopy ((S)TEM) [86][87][88][89][90][91] at the micro-and nano-scales and analyzed with energy dispersive X-ray spectroscopy (EDS), electron energy loss spectroscopy (EELS) and electron diffraction.…”

Section: Introductionmentioning

confidence: 99%

Application of Operando X-ray Diffractometry in Various Aspects of the Investigations of Lithium/Sodium-Ion Batteries

Zhu¹,

Wang²,

Dongqiang³

et al. 2018

Energies

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The main challenges facing rechargeable batteries today are: (1) increasing the electrode capacity; (2) prolonging the cycle life; (3) enhancing the rate performance and (4) insuring their safety. Significant efforts have been devoted to improve the present electrode materials as well as to develop and design new high performance electrodes. All of the efforts are based on the understanding of the materials, their working mechanisms, the impact of the structure and reaction mechanism on electrochemical performance. Various operando/in-situ methods are applied in studying rechargeable batteries to gain a better understanding of the crystal structure of the electrode materials and their behaviors during charge-discharge under various conditions. In the present review, we focus on applying operando X-ray techniques to investigate electrode materials, including the working mechanisms of different structured materials, the effect of size, cycling rate and temperature on the reaction mechanisms, the thermal stability of the electrodes, the degradation mechanism and the optimization of material synthesis. We demonstrate the importance of using operando/in-situ XRD and its combination with other techniques in examining the microstructural changes of the electrodes under various operating conditions, in both macro and atomic-scales. These results reveal the working and the degradation mechanisms of the electrodes and the possible side reactions involved, which are essential for improving the present materials and developing new materials for high performance and long cycle life batteries.

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In-situ FTIR spectroscopic studies of electrocatalytic reactions and processes

Cited by 139 publications

References 137 publications

Application of Operando X-ray Diffraction and Raman Spectroscopies in Elucidating the Behavior of Cathode in Lithium-Ion Batteries

Application of Operando X-ray Diffraction and Raman Spectroscopies in Elucidating the Behavior of Cathode in Lithium-Ion Batteries

Applications of Conventional Vibrational Spectroscopic Methods for Batteries Beyond Li‐Ion

Application of Operando X-ray Diffractometry in Various Aspects of the Investigations of Lithium/Sodium-Ion Batteries

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