2023年10月17日 · The valence states of Co in M-CoPc-400 and B-CoPc-400 were examined by X-ray photoelectron spectroscopy (XPS). Figure S3 shows the C 1 s, N 1 s, and Co 2 p XPS spectra.

2024年1月23日 · Powder X-ray diffraction (PXRD) and electron microscopy analysis results reveal the crystalline porous framework of CoPc-S-COF with an undulated layered structure due to the bending along the...

2023年8月14日 · X-ray photoelectron spectroscopy (XPS) shows that both the Co 2 p1/2 and Co 2 p3/2 peaks of CoPc/CNTs shift to higher binding energies (Fig. 2a), reaching a...

2020年9月1日 · Herein, we have studied the electrochemical CO 2 reduction on cobalt phthalocyanine (CoPc) with Vulcan XC-72 and carbon nanotubes (CNTs) supports, respectively. Compared with pure CoPc, the resulting CoPc/XC-72 and CoPc/CNTs exhibits a notable improvement in catalytic activity.

2023年11月17日 · This paper focuses on enhancing the performance of electrocatalytic CO 2 reduction reaction (CO 2 RR) by improving the dispersion of cobalt phthalocyanine (CoPc), especially for the methanol formation with multi-walled carbon nanotubes (CNTs) as a support.

2019年8月15日 · The axial coordination between CoPc and pyridine functionalized CNT led to a higher charge density in the CoPc-py-CNT system and raised the energy of the Co d z2 orbital; it is consistent with XPS results, showing a decreased Co 2p binding energy for CoPc-py-CNT.

Herein, we have successfully prepared highly dispersed cobalt (II) phthalocyanine (CoPc) on N-doped carbon nanopa... [...] The application of electrochemical CO2 reduction reaction (CO2RR) to...

2024年1月2日 · X-ray photoelectron spectroscopy (XPS) was performed to investigate the surface chemical compositions and states of COP-CoPc. In the high-resolution N 1s XPS spectrum of COP-CoPc (Figure 2D), a significant shift towards a higher binding energy by ~0.3 eV is observed compared to that of CoPc-NH 2.

2022年12月9日 · Herein, axial phosphate (PO 4) coordination is incorporated in Co 1 N 4 single atoms of cobalt phthalocyanine@carbon nanotubes (P-CoPc@CNT), so as to boost the intrinsic OER performance through manipulating the reaction pathway.

2020年1月1日 · Herein, synchrotron-based X-ray photoelectron spectroscopy (XPS) and soft X-ray absorption spectroscopy (XAS) were employed to elucidate the catalytic active site evolution during the reaction process. We found that the electrochemical reduction reaction of CO 2 on CoPc follows a dual-active sites process.