Electrocatalysts on carbonitride matrices

• Main Authors: BASSETTO FABIO, TONCELLI LUCA, BERTASI FEDERICO, VEZZU' KETI, DI NOTO VITO, NEGRO ENRICO, NAWN GRAEME, ZEGGIO STEFANO
• Format: Patent
• Language: Chinese; English
• Published: 11.05.2018
• Subjects: BASIC ELECTRIC ELEMENTS; ELECTRICITY; MANUFACTURE OR TREATMENT OF NANOSTRUCTURES; MEASUREMENT OR ANALYSIS OF NANOSTRUCTURES; NANOTECHNOLOGY; PERFORMING OPERATIONS; PROCESSES OR MEANS, e.g. BATTERIES, FOR THE DIRECT CONVERSIONOF CHEMICAL INTO ELECTRICAL ENERGY; SPECIFIC USES OR APPLICATIONS OF NANOSTRUCTURES; TRANSPORTING

The invention relates to electrocatalysts comprising a carbonitride (CN) shell featuring good electrical conductivity, coordinating suitable catalytically active sites. In a preferred aspect of the invention, the aforesaid carbonitride shell coordinates nanoparticles or aggregates of nanoparticles, on which the active sites of the electrocatalyst are located. In a preferred form of the invention,said carbonitride shell covers suitable cores with good electrical conductivity. Said electrocatalysts are obtained through a process involving the pyrolysis of suitable precursors; in one aspect of the invention, the preparation process requires certain further steps. In one preferred aspect, the steps comprise one or more of the following: chemical treatments; electrochemical treatments; furtherpyrolysis processes. 本发明涉及包含以良好导电性为特征、配位合适的催化活性位点的碳氮化物(CN)壳的电催化剂。在本发明的优选的方面中，上述碳氮化物壳配位纳米颗粒或纳米颗粒的聚集体，电催化剂的活性位点位于该纳米颗粒或纳米颗粒的聚集体上。在本发明的优选的形式中，所述碳氮化物壳覆盖具有良好导电性的合适的核。所述电催化剂通过涉及合适的前体的热解的工艺而获得；在本发明的个方面中，制备工艺需要某些另外的步骤。在个优选的方面中，该步骤包括以