31, whereas surface oxide evolution is an intrinsically non-equilibrium and often multiphase process. For instance, neither the elemental gradient distribution in the oxide nor the oxide thickness can be inferred from knowledge of the
S3). Notably, the observation of a Cr-dominated surface oxide agrees with recent studies from the Scully group, who used inductively coupled plasma-mass spectrometry (ICP-MS) to demonstrate continuous Cr enrichment in the mixed Ni/Cr oxide as the oxide dissolves under an applied bias in acid...
A novelt-phase ruthenium oxide atomic layers implanted on Mo2TiC2TxMXene (RAL-M) was prepared.For the first time, we reportedRAL-Mas a model electrocatalyst for the oxygen evolution reaction (OER) in acidic media.The mass activity and turnover frequency of RAL-M was150/540 times greater ...
The energy performances of nanothermite materials are dependent on the mass transport, diffusion distance, and interfacial contact area between the fuel and the oxidizer. In this work, we utilize an atomic layer deposition (ALD) technique to deposit Fe2O3 directly onto the surface of Al ...
Effects of ALD and MLD coatings on LiNi0.5Mn1.5O4cathodes. (a) Discharge capacities of LiNi0.5Mn1.5O4/graphite cells, i.e., Bare (black closed),cLiAlO2(blue closed),aLiAlO2(blue open),cAl2O3(red closed), andaAl2O3(red open) at RT (based on the mass of LiNi0.5Mn1.5O4) [129]...
The ratio of Fe to Co content was also assessed via inductively coupled plasma optical emission spectrometry (ICP-OES) and mass spectrometry (ICP-MS). The Fe/Co ratio in Fe(tCo)–N–C was determined to be 23.7, consistent with the ratio of 25.9 obtained from the EDS mapping results of ...
Actually, the thickness of the carbon is tunable by adjusting the mass of resorcinol as seen in Fig. 4a,b. When the resorcinol dosage reduces to 0.25 and 0.1 g, the carbon shell thickness of S1 decreases to 19 and 16 nm, respectively (See Fig. 4). Figure 4 The TEM images of...
The compound Fe2O3 contains how many atoms? How many atoms of gold (au) are present in a sample of 2.5 mol Au? 1 mole of lithium (Li) is equal to how many atoms of lithium? How do you calculate the atomic number of isotopes? How is an atom's atomic mass number dete...
After the deposition, the prepared electrode was rinsed consequentially with double-distilled water and dried in vacuum oven at 60°C for 12 h. The mass of the deposited Co(OH)2was measured for the weight difference before and after the electrochemical deposition by means of a micro-balance...
I[nNa2 simplified model where the HER is the only competing reac- tion of the NRR and the mass and electron transfer are not rate-determining factors, the Faradaic efficiency (FE) for the NRR can be estimated by the Boltzmann distribution [63, 83]: fNRR = 1/[1 + exp(−...