▎ 摘　　要

NOVELTY - Preparing a carbon nanomaterial (CNM) product involves heating a lithium-free carbonate electrolyte to obtain a molten carbonate electrolyte, positioning the molten carbonate electrolyte between an anode and a cathode in an electrolytic cell, applying an electrical current to the cathode and the anode in the electrolytic cell, and collecting a carbon nanomaterial (CNM) product from the cathode. USE - Method for preparing carbon nanomaterial product. ADVANTAGE - The method includes lithium salt, that add an improved property, without adding a substantial lithium cost to the electrolyte. DETAILED DESCRIPTION - INDEPENDENT CLAIMS are included for the following: 1. an electrolytic cell for making a CNM product, which includes a plenum, an anode and a cathode that are positioned within the plenum, wherein the plenum is configured to receive a lithium-free molten carbonate electrolyte between the anode and the cathode, where the cell is further configured to receive a graphene-defect agent within the plenum, a nanomaterial selection component, and an electrical current that is applicable to the anode and the cathode to initiate an electrolysis reaction for making a CNM product; 2. a system for synthesizing a CNM product, which includes a heater for heating a lithium-free carbonate electrolyte to obtain a molten carbonate electrolyte, an electrolytic cell for receiving or housing the molten carbonate electrolyte between an anode and a cathode in an electrolytic cell, one or more non-lithium facilitation elements, and, a source of electrical current for applying an electrical current to the cathode and the anode in the electrolytic cell.