A METHOD OF SYNTHESIZING GRAPHENE FELTS WITHOUT USING BINDERS

• Main Authors: CHARAYA HEMANT, VIVEK SINGHAL AKSHAY, PAUL KUNAL, KUMAR SHARMA ANSHUL, SHAJAR ALI IMAM SYED, BHARDWAJ ARVIND
• Format: Patent
• Language: Chinese; English
• Published: 31.08.2021
• Subjects: CHEMISTRY; COMPOUNDS THEREOF; INORGANIC CHEMISTRY; METALLURGY; NON-METALLIC ELEMENTS

The embodiments herein provide a facile four-step process for the preparation of binder-free graphene felts that are free standing and mechanically robust. The step of deagglomeration of graphene material leads to a uniform size distribution which when combined/integrated with an appropriate moulding technique allows an easy fine tuning of various attributes of graphene felts including electrical conductivity, porosity, surface area, surface morphology and surface functionalization depending on the desired application. Since graphene felts obtained from this process do not incorporate any binder, to achieve better electrical conductivity, electrochemical activity and catalytic and sensing properties compared to conventional graphene felts while not compromising with their mechanical properties. 本发明的实施例提供了简易的四步法，用于制备无支撑并具机械强度的无粘合剂石墨毡。石墨烯材料的解聚步骤导致了均匀的粒度分布，当与适当的模塑技术结合/整合时，可根据所需的应用轻松微调石墨毡的各种属性，包括电导率、孔隙率、表面积、表面形态以及表面功能化。由于从所述过程中获得的石墨毡不掺入任何粘合剂，与传统的石墨毡相比，可实现更好的电导率、电化学活性以及催化和传感性能，同时不影响其机械特性。