The catalytic reaction rates and activities of various TiO2−x/Ni catalysts show a volcano-like trend with the increment of catalyst reduction temperature in Fig. 1c. The optimum TiO2−x/Ni-450 catalyst shows the highest reaction rate (0.053 molCO gNi−1 h−1) and catalytic activity ...
In the presence of high hydrogen partial pressures, we would like to study whether or not *NO will favour hydrogenation over *N-O direct dissociation. As the experimental NO reduction temperature ranges from 300 K to 500 K68,69, the rate constants (Table 1) are calculated in the ...
Reduction of iron and manganese oxides causes the more soluble divalent forms (Fe2+, Mn2+) to accumulate in the pore water until being removed by diffusion and precipitation when exceeding the solubility of some solid phase. For Fe this is frequently ferrous sulphide (FeS), which transforms ...
RHE plotted against scan rates. (e) Electrochemical impedance spectroscopy measured at open circuit potential. Rs corresponds to the solution resistance, Rct represents the charge transfer resistance, Zw represents the Warburg impedance caused by mass diffusion, while CPE are constant phase elements ...
A magnetic field strategy to porous Pt-Ni nanoparticles with predominant (111) facets for enhanced electrocatalytic oxygen reduction... L Xiao,W Zhang,S Liu,... - 能源化学:英文版 被引量: 0发表: 2021年 Synthesis of Pt-Ni Alloy Nanocrystals with High-Index Facets and Enhanced Electrocataly...
The compacts were successfully sintered in a microwave furnace with about 80% reduction in the overall processing time. For both the heating modes, the W–Ni–Fe alloys exhibited significant densification prior to melt formation through solid-state sintering. The in situ dilatometric studies revealed...
Compact FieldPoint combines data logging, data reduction, control algorithms, HMI, and the ability to communicate with other nodes on the network. Communication Figure 1. Take control quickly with Compact FieldPoint and LabVIEW Real-Time. Reliable Embedded Operation Using cFP-20xx industrial controllers...
For nFe/Ni and ATP-nFe/Ni, both can achieve dechlorination and nitroreduction. However, the efficiency of nFe/Ni and ATP-nFe/Ni are different. The nitroreduction rates of p-CNB by nFe/Ni and ATP-nFe/Ni reached 66.2% and 5.0% at 120 min, respectively (Figure 4b), and the dechlorinati...
However, this reaction went through an eight-electron process for CO2 reduction into methane, which suffered significant kinetic limitations [8]. To solve this puzzle, a catalytic material that could achieve high reaction rates was required. Ni-based catalysts with high reaction activity and low-...
As a result, the Cu3P-Ni2P/CP-0.5 displays the practicability in an MEA system with an anion exchange membrane, affording the largest ammonia yield rate (RNH3) of 1.9 mmol·h−1·cm−2, exceeding most of the electrocatalytic nitrate reduction electrocatalysts reported to date. The ...