Reaction Mechanism of H2-Assisted C3H6-SCR over Ag-CexZr Catalyst as Investigated by In situ FTIR

2020 ◽  
Vol 36 (5) ◽  
pp. 885-893
Author(s):  
Jun Duan ◽  
Ling Zhao ◽  
Shengjun Gao ◽  
Yu Zhang
Keyword(s):  
Reaction Mechanism ◽  
In Situ Ftir

Photocatalytic Removal of Soot: Unravelling of the Reaction Mechanism by EPR and in situ FTIR Spectroscopy

ChemPhysChem ◽  
2012 ◽  
Vol 13 (18) ◽  
pp. 4251-4257 ◽  
Author(s):  
Marianne Smits ◽  
Yun Ling ◽  
Silvia Lenaerts ◽  
Sabine Van Doorslaer
Keyword(s):  
Reaction Mechanism ◽  
Ftir Spectroscopy ◽  
In Situ Ftir ◽  
In Situ Ftir Spectroscopy ◽  
Photocatalytic Removal

scholarly journals In situ XRD and operando spectra-electrochemical investigation of tetragonal WO3-x nanowire networks for electrochromic supercapacitors

2021 ◽  
Vol 13 (1) ◽  
Author(s):  
Shen Wang ◽  
Hongbo Xu ◽  
Tingting Hao ◽  
Peiyuan Wang ◽  
Xiang Zhang ◽  
...  
Keyword(s):  
Reaction Mechanism ◽  
Electronic Device ◽  
High Capacity ◽  
Optical Modulation ◽  
Function Evaluation ◽  
Dual Function ◽  
Electrochemical Performances ◽  
Electrochemical Cycling ◽  
Nanowire Networks

AbstractElectrochromic supercapacitors (ESCs) are appealing for smart electronic device applications due to their advantages of dual-function integration. Unfortunately, the synchronous dual-function evaluation and the essential reaction mechanism are ambiguous. Herein, we constructed a 3D WO3-x nanowire networks/fluorine-doped tin oxide (WO3-x NWNs/FTO) bifunctional electrode for ESCs by a solvothermal self-crystal seeding method. The synchronous correspondence relationship between the optical and electrochemical performances of the WO3-x NWNs/FTO electrode was explored using an operando spectra-electrochemical characterization method. It reveals an excellent areal capacity of 57.57 mF cm−2 with a high corresponding optical modulation (ΔT) of 85.05% and high optical-electrochemical cycling stability. Furthermore, the synergistic reaction mechanism between the Al3+ ion intercalation behavior and the surface pseudocapacitance reaction during electrochemical cycling is revealed utilizing in situ X-ray diffraction. Based on these results, an ESC device was constructed by pairing WO3-x/FTO as the cathode with V2O5 nanoflowers/FTO (V2O5 NFs/FTO) as the anode, which simultaneously deliver high capacity and large optical modulation. Moreover, the energy storage level of the ESC device could be visually monitored by rapid and reversible color transitions in real time. This work provides a promising pathway to developing multi-functional integrated smart supercapacitors.

Sign in / Sign up

Export Citation Format

Share Document