Early studies have shown that increasing the local concentrations of alkali metal cations in close proximity to catalyst surfaces can enhance CO2R by stabilizing the surface-adsorbed CO2and CO2R-related intermediates through non-covalent interactions, and, at the same time, impeding the diffusion of ...
For the N K-edge spectrum (Figure 2B), peak A (399.5 eV) and peak C (402.4 eV) can be assigned to pyridinic π* and graphitic π* transitions in H-CPs and F-CPs, respectively. Peak D (408.5 eV) suggests the formation of C−N−C or C−N σ* bond. For the C K-edge ...
In this work, CO2 absorption from simulated biogas is investigated using different blends of a PZ + AMP solution in an absorption system at CO2 partial pressures ranging between 20 and 110 kPa. The collected data were presented as CO2 removal profiles along the packed column and were evaluated ...
We also elaborate upon the methods that can be utilized to control and identify the disorder that could be observed in the thin film that we synthesized. Figure 1a depicts the schematic diagram of the three-step method proposed in this study. The first step is the deposition of the precursor...
dot-matrix pattern. Determination of the chemical state by X-ray absorption near-edge structure (XANES) combined with XPS revealed that Mo species in CMS exhibit different unsaturated coordination environments, compared to Mo in FMS (Fig.2aand Supplementary Fig.10b). As can be seen in Fig.2b,...
(InSAR) technology, with its advantages of extensive coverage in surface deformation monitoring and all-weather traceability of the injection processes, has become one of the promising technologies frequently adopted in worldwide CCUS projects. In this study, taking the CCUS sequestration area in Shi...
When the inlet pressure reaches 1 MPa, the inlet of the swirl flow pipe is depressurized, expanded, and accelerated to a critical state at the minimum cross-section. The depressurization continues to reach a supersonic state in the vortex chamber. From the numerical simulation results, it can...
Figure 2.Schematic diagram of the karst water movement path in the Jinan area ([28]). Figure 3.Distribution map of the sampling sites. 2.2. Sampling and Analysis 2.2.1. Hydrochemical Field Parameters According to the research objectives of this study, we chose spring outlets, a spring-fed ...
Mitigating carbon emissions has become a pressing concern in the process of economic development across China due to China’s key strategic goal of reaching peak carbon and carbon neutrality. Henan Province, which is located in the Central Plains, has le
The schematic diagram of the heat pump system for energy storage is illustrated in Figure 1. In order to obtain heat and cold energy at the same time, the working fluid needs proper glide temperature during evaporation; therefore, a transcritical vapor compression heat pump (VCHP) cycle using ...