A smoking article is provided that includes an aerogel, which can be optionally impregnated with a catalytic metal compound or can optionally be coated with at least one aerosol-forming material and a flavoring agent. The smoking article comprises various segments such as a heat generation segment, an aerosol-generation segment, and a mouth end. The aerogel can be placed near or within any of these segments.

The presence of the aerogel can reduce the concentration of certain gaseous components of mainstream smoke generated during use of a smoking article incorporating a heat generation segment containing a fuel element.

There is provided a method of manufacturing a combustible heat source having a barrier, the method including providing a mold defining a cavity; placing a particulate component in the mold cavity; placing a laminar component, adjacent the mold, to cover the cavity opening; and compressing the particulate component to form the combustible heat source, wherein, during the compression step, the barrier is formed by punching the laminar component using a punch and the mold, the punch acting on the barrier to compress the particulate component and affix the barrier to the combustible heat source.

A modified carbon material, including a carbonaceous material and a water-insoluble modifier combined with the carbonaceous material, wherein the water-insoluble modifier is CuO, the carbonaceous material is one of or a mixture of biomass carbon or carbon black, a mass of the water-insoluble modifier is being 0.1-10 wt % of the carbonaceous material. The method for preparing the modified carbon material includes: (1) soaking the carbonaceous material in a copper sulfate solution for 5 to 36 hours, and (2) adding an alkali solution into a solution obtained in step (1) to provide a pH value ≥12, and after keeping the pH value for 0.5 to 2 hours, filtering and drying to obtain a solid. (3) using the carbonaceous material as a combustion heat source to reduce the ignition temperature, increase or reduce the peak thermal power temperature.

An aerosol-generating article is provided, including an aerosol-forming substrate including aerosol-forming material and a tobacco-containing wrapper around and in contact with the aerosol-forming material, the wrapper having an aerosol former content of between about 5% and about 30% by weight of the total weight of the wrapper; a combustible heat source upstream of the aerosol-forming substrate; and a heat-conducting element around and in contact with at least a portion of the wrapper.

Heat not burn products comprising an encapsulated aerosol generating agent, the encapsulation having the effect of controlling the release of the agent during use of the heat not burn product. The encapsulation will control the timing of the release of the aerosol generating agent during the use of the heat not burn product, to allow greater control of the puff yield. In the case of some aerosol generating agents, the encapsulation may also increase the stability of the agent and/or prevent its migration within the product.

A combustible heat source for an aerosol-generating article, the combustible heat source comprising: carbon; an alkaline earth metal peroxide ignition aid; and a binding agent comprising at least one non-cellulosic film-forming polymer.

A smoking article is provided, including an aerosol-generating substrate, the aerosol-generating substrate being a rod including a gathered sheet of homogenised tobacco material circumscribed by a wrapper, the gathered sheet of homogenised tobacco material including one or more aerosol-formers and having an aerosol-former content of greater than 5% on a dry weight basis, and the rod having a length of between 5 mm and 20 mm.

The present disclosure provides an aerosol delivery device comprising an aerosol source member. In an example embodiment, an aerosol source member of the present disclosure may comprise a substrate portion comprising a nanocellulose material impregnated with an aerosol precursor composition, a heat source configured to heat the aerosol precursor composition from the substrate portion forming an aerosol, and an aerosol pathway extending from the substrate portion to a mouth-end of the aerosol delivery device.

An aerosol-generating article is provided, including an aerosol-forming substrate; a combustible heat source; at least one layer of ceramic paper circumscribing at least a portion of a length of the combustible heat source; one or more airflow pathways along which air may be drawn through the aerosol-generating article for inhalation; and one or more non-combustible, substantially air impermeable barriers between the combustible heat source and the aerosol forming substrate.

A smoking article is provided that includes an aerogel, which can be optionally impregnated with a catalytic metal compound or can optionally be coated with at least one aerosol-forming material and a flavoring agent. The smoking article comprises various segments such as a heat generation segment, an aerosol-generation segment, and a mouth end. The aerogel can be placed near or within any of these segments. The presence of the aerogel can reduce the concentration of certain gaseous components of mainstream smoke generated during use of a smoking article incorporating a heat generation segment containing a fuel element.