About Sodium formate for photovoltaic energy storage
The rapid footstep of hydrogen society drives people to pursue the reliable, energy-saving, and renewable hydrogen production patterns. Herein, an electricity-hydrogen co-produced Na-ion direct format.
••An e-h Na-DFFC that co-produces electricity and hydrogen is proposed.••.
As a clean energy carrier between the renewable energy, such as solar and wind, and the energy-dependent economy, hydrogen has been considered as an ideal solution to mitiga.
2.1. MaterialsGraphite felt (1.0 mm in thickness) was purchased from Jingu Ltd (Liaoning, China). Pd/C (30 wt%) and Pt/C (46.2 wt%) were, respectivel.
In the anode of e-h2 Na-DFFC, the mixed solution of sodium formate and sodium hydroxide was continuously pumped into the anode flow field, and then transferred to the anode active.
The pristine graphite felt was thermally treated to increase its wettability. As shown in Fig. S1, the contact angle of thermally treated graphite felt (69°) is smaller than that of pristine gr.
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6 FAQs about [Sodium formate for photovoltaic energy storage]
What is the charge specific capacity of sodium formate?
The charge specific capacity of the sodium formate is as high as 295.3 mAh g −1 when charged to 4.5 V in the first cycle, but the subsequent discharge specific capacity is much lower than the charge specific capacity. This phenomenon is related to the irreversible decomposition of sodium formate.
Can rechargeable sodium-based energy storage cells replace lithium-ion cells?
Rechargeable sodium-based energy storage cells (sodium-ion batteries, sodium-based dual-ion batteries and sodium-ion capacitors) are currently enjoying enormous attention from the research community due to their promise to replace or complement lithium-ion cells in multiple applications. In all of these emer
Does sodium formate improve cycling performance?
The results show that sodium formate added to NNZMO can significantly improve cycling performance for both the half cell and full cell. The capacity retention of the NNZMO cathode with 15 wt.% sodium formate is 88.6% after 100 cycles at 100 mA g –1 in a half cell, much higher than that (81.3%) of the NNZMO cathode without sodium formate.
Why is sodium formate a good substitute for a hard carbon anode?
Such excellent performance is attributed to the self-sacrificial sodium compensation effect of sodium formate acting as the donor of extra active sodium ions, which can directly compensate the sodium consumption in the cell system caused by irreversible interfacial reactions occurring on a hard carbon anode.
Can sodium formate improve nnzmo cycling performance?
The decomposition products of sodium formate can also act as a modifier for the surface of NNZMO particles. The results show that sodium formate added to NNZMO can significantly improve cycling performance for both the half cell and full cell.
What is the intensity of oxidation of sodium formate?
The intensity of the oxidation peaks located at ⁓3.9 V and ⁓4.2 V increases with the increase in sodium formate content, implying that the greater the amount of sodium formate added, the stronger the decomposition reaction of sodium formate and other side reactions.