The present disclosure relates to a carbon-based nanomaterial composition that may be formed from a gas mixture. The gas mixture may include acetylene gas at a molar ratio AG.sub.mol/GM.sub.mol of at least about 0.55 and not greater than about 0.99, oxygen gas at a molar ratio OG.sub.mol/GM.sub.mol of at least about 0.01 and not greater than about 0.75, and hydrogen gas at a molar ratio HG.sub.mol/GM.sub.mol of at least about 0.05 and not greater than about 0.90. The carbon-based nanomaterial composition may have a carbon hybridization ratio P.sub.sp3/P.sub.sp2 of at least about 0.0 and not greater than about 5.0, where P.sub.sp3 is the percent of carbon within the carbon-based nanomaterial composition having a sp3 hybridization and P.sub.sp2 is the percent of carbon within the carbon-based nanomaterial composition having a sp2 hybridization.

Provided is an ultra-high structure and high specific surface area carbon black based on high crystallinity and a preparation method thereof, an electrode slurry, and a battery. The ultra-high structure and high specific surface area carbon black based on high crystallinity satisfies the following characteristics: (1) the degree of crystallinity is equal to or more than 39%; (2) the BET specific surface area ranges from 200 m.sup.2/g to 763 m.sup.2/g; (3) the OAN ranges from 334 mL/100g to 548 mL/100g; and (4) the average particle diameter of primary particles is equal to or less than 35 nm.

Provided is an ultra-high structure and high specific surface area carbon black based on high crystallinity and a preparation method thereof, an electrode slurry, and a battery. The ultra-high structure and high specific surface area carbon black based on high crystallinity satisfies the following characteristics: (1) the degree of crystallinity is equal to or more than 39%; (2) the BET specific surface area ranges from 200 m.sup.2/g to 763 m.sup.2/g; (3) the OAN ranges from 334 mL/100g to 548 mL/100g; and (4) the average particle diameter of primary particles is equal to or less than 35 nm.

The disclosed method and related systems and devices relate to producing a pigment from microbial biomass. The pigment may be an engineered black pigment. The method may include a thermal processing step where the microbial biomass is charred. The biomass in the charred and pre-charred state can be washed chemically and/or mechanically. In another step the biomass is ground via a grinding of milling process. The grinding/milling may occur at any various points in the process. In some embodiments the biomass has a particle size between 0.01 and 100 microns.

The disclosed method and related systems and devices relate to producing a pigment from microbial biomass. The pigment may be an engineered black pigment. The method may include a thermal processing step where the microbial biomass is charred. The biomass in the charred and pre-charred state can be washed chemically and/or mechanically. In another step the biomass is ground via a grinding of milling process. The grinding/milling may occur at any various points in the process. In some embodiments the biomass has a particle size between 0.01 and 100 microns.

A high structure acetylene black having an oil absorption number (OAN) of 360 mL/100 g or more and a BET surface area in a range from 50 to 200 m2/g is provided. Such high structure carbon black exhibits excellent electrical conductivity and good processing properties. e.g. dispersibility, having superior power to impart electrical and/or thermal conductivity to various materials, rendering it particularly useful for all kinds of applications where high electrical and/or thermal conductivity is desired or beneficial, such as manufacture of electrodes and other components of energy storage and/or conversion devices or electrically and/or heat conductive materials and articles made thereof.

A high structure acetylene black having an oil absorption number (OAN) of 360 mL/100 g or more and a BET surface area in a range from 50 to 200 m2/g is provided. Such high structure carbon black exhibits excellent electrical conductivity and good processing properties. e.g. dispersibility, having superior power to impart electrical and/or thermal conductivity to various materials, rendering it particularly useful for all kinds of applications where high electrical and/or thermal conductivity is desired or beneficial, such as manufacture of electrodes and other components of energy storage and/or conversion devices or electrically and/or heat conductive materials and articles made thereof.