Supercapattery electrode materials by Design: Plasma-induced defect engineering of bimetallic oxyphosphides for energy storage

Saleh, Amina A.; Ahmed, Nashaat; Biby, Ahmed H.; Allam, Nageh K.

doi:10.1016/j.jcis.2021.06.125

Cited by 32 publications

(22 citation statements)

References 85 publications

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“…42 The oxygen defects can facilitate the charge transfer by improving electrical conductivity and boost ion transport by decreasing the ion-diffusion energy barrier. 43 The Al 2p peak (Figure 3e) at 74.4 eV can be assigned to the presence of Al 3+ . 26 The highresolution Cu 2p spectrum (Figure 3f) shows 2p 3/2 peaks at 932.3 and 934.9 eV and 2p 1/2 peaks at 952.0 and 953.0 eV, indicating the presence of both univalent and divalent copper at the surface.…”

Section: ■ Results and Discussionmentioning

confidence: 94%

“…As shown in Figure S6, the O 1s spectrum of AlCu-NiCoP can be deconvoluted into three peaks at 531.3, 531.9, and 533.3 eV, corresponding to lattice oxygen (M–O), metal hydroxyl (O–H), and oxygen vacancies (O v ), respectively . The oxygen defects can facilitate the charge transfer by improving electrical conductivity and boost ion transport by decreasing the ion-diffusion energy barrier . The Al 2p peak (Figure e) at 74.4 eV can be assigned to the presence of Al 3+ .…”

Section: Resultsmentioning

confidence: 99%

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Zeolitic Imidazole Framework Sacrificial Template-Assisted Synthesis of NiCoP Nanocages Doped with Multiple Metals for High-Performance Hybrid Supercapacitors

Lyu

Antink

Lee

et al. 2021

ACS Appl. Energy Mater.

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Metal phosphides have great potential for electrochemical energy-storage devices and electrocatalysis. Although monometallic and bimetallic phosphides have been extensively studied, the preparation of more complex metal phosphides remains challenging and it is necessary to further expand the available design space. Herein, we report a universal method to dope various metal cations into NiCoP nanocages (M-NiCoP, M = Al, Cu, Cr, Zn). Interestingly, the method can also be expanded to allow the incorporation of two to four metal dopants simultaneously (AlCu-NiCoP, AlZn-NiCoP, CrZn-NiCoP, AlCrCu-NiCoP, AlCrCuZn-NiCoP). To investigate the effect of incorporating multiple dopants, AlCu-NiCoP was used as the electrode material for supercapacitors, showing enhanced capacity and cycling stability compared to Al-NiCoP, Cu-NiCoP, and NiCoP electrodes. The superior electrochemical performance is attributed to the increased number of active sites, improved ion-diffusion kinetics, and a modulated electronic structure. An aqueous hybrid supercapacitor with AlCu-NiCoP as the positive electrode and activated carbon as the negative electrode was assembled and demonstrated a high energy density of 62.8 Wh kg–1 at a power density of 750 W kg–1 with good cycling stability.

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Section: ■ Results and Discussionmentioning

confidence: 94%

Section: Resultsmentioning

confidence: 99%

Zeolitic Imidazole Framework Sacrificial Template-Assisted Synthesis of NiCoP Nanocages Doped with Multiple Metals for High-Performance Hybrid Supercapacitors

Lyu

Antink

Lee

et al. 2021

ACS Appl. Energy Mater.

View full text Add to dashboard Cite

show abstract

“…7d, the CV curves of HSC were obtained at scan rates from 5 to 100 mV s −1 , indicating that the electric double layer capacitance and battery-type capacitance were between 0–1.6 V. It is worth noting that when it was higher than or equal to 40 mV s −1 , the redox peak could still be observed from the CV curve, displaying the good rate capacity and reaction kinetics. 55 Fig. 7e and f show the GCD curves of the device at current densities ranging from 1 to 30 A g −1 .…”

Section: Resultsmentioning

confidence: 99%

Synthesis of P-doped NiS as an electrode material for supercapacitors with enhanced rate capability and cycling stability

et al. 2022

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“…[ 13 , 14 ] Binary metal oxyphosphide usually involves a multi‐step reaction mechanism as electrode for electrochemical energy storage. [ 15 , 16 ] However, the physicochemical changes of the binary metal oxyphosphide during the potassium ion storage remain unclear, which hinders the design and development of advanced electrode materials. Therefore, exploring the reaction mechanism of metal oxides not only facilitates understanding of the relationship between binary metal oxyphosphide and K + but also achieves a long lifespan, which would be a breakthrough for large‐scale energy storage devices.…”

Section: Introductionmentioning

confidence: 99%

Construction of Novel Bimetallic Oxyphosphide as Advanced Anode for Potassium Ion Hybrid Capacitor

Wang

et al. 2022

Advanced Science

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Potassium ion hybrid capacitors (PIHCs) have attracted considerable interest due to their low cost, competitive power/energy densities, and ultra‐long lifespan. However, the more sluggish insertion kinetics of battery‐type anodes than capacitor‐type cathodes in PIHCs seriously limits their practical application. Therefore, developing advanced anodes with high capacitor and suitable K+ intercalation is imperative and significant. A novel core–shell structure of NiCo oxide/NiCo oxyphosphide (NCOP) nanowires are designed and constructed in this study via efficient and facile strategy. Combining the merits of the core–shell structure and the massive active sites in the oxyphosphide layer, the as‐prepared NCOP composites manifest highly reversible capacitors and outstanding rate capability. Meanwhile, the insertion and conversion potassium storage mechanisms of the NCOP are successfully revealed through in situ X‐ray diffraction and density functional theory calculations, respectively. Furthermore, the PIHC was assembled with NCOP anode and borocarbonitride cathode, which displays a large energy density and high‐power density, along with an exceptional capacity retention of ≈90% over 10 000 cycles at 1.0 A g−1. This work provides the anion regulation strategy for modifying the transition metal oxide and constructing the advancing electrode materials for next‐generation energy storage and beyond.

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Supercapattery electrode materials by Design: Plasma-induced defect engineering of bimetallic oxyphosphides for energy storage

Cited by 32 publications

References 85 publications

Zeolitic Imidazole Framework Sacrificial Template-Assisted Synthesis of NiCoP Nanocages Doped with Multiple Metals for High-Performance Hybrid Supercapacitors

Zeolitic Imidazole Framework Sacrificial Template-Assisted Synthesis of NiCoP Nanocages Doped with Multiple Metals for High-Performance Hybrid Supercapacitors

Synthesis of P-doped NiS as an electrode material for supercapacitors with enhanced rate capability and cycling stability

Construction of Novel Bimetallic Oxyphosphide as Advanced Anode for Potassium Ion Hybrid Capacitor

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