Fabrication of waste biomass derived carbon by pyrolysis

Concentrated Acid‐Induced Dehydration of Fallen Leaves for Efficient, Sustainable, and Self‐Cleaning Solar Steam Generation

“…In the SEM image of untreated fallen leaves (Figure 1b), there are complex morphologies, including porous tubes and sponge clusters. [41] Figure 1c,d shows the SEM images of FLP after high temperature carbonization and concentrated acid-induced dehydration, respectively. Porous carbon is produced by both methods.…”

Synthesis of porous carbon material based on biomass derived from hibiscus sabdariffa fruits as active electrodes for high-performance symmetric supercapacitors

“…Therefore, the GCD curves of the HBFC-1//HBFC-1 SSC, which range from (0.25 to 10 A g À1 ) at 1.8 V as shown in Fig. 6c and the specic capacities of the HBFC-1//HBFC-1 SSC are as follows of 29,26,24,22,20,19, and 16 F g À1 at the current densities of 0.25, 0.5, 1, 2, 3, 5, and 8 A g À1 , indicate that the discharge curves are very symmetric with their corresponding parallel and also the charge and discharge curves are symmetric with the change of time, which indicates that HBFC-1//HBFC-1 SSC has high electrochemical reversibility. As shown in Fig.…”

“…It can be completed in a several-steps activation process with possibly obtaining less specific surface area activated carbons than chemical activation. 16–18 Diverse biomass precursors, such as fish scale, 19 fallen leaves, 20 ginkgo shells, 21 willow catkins, 22 water bamboo, 23 yeast cells, 24 pig bone, 25 raw cotton, 26 cherry stone, 27 waste tea-leaves, 28 pine-cone, 29 cow dung, 30 waste paper, 31 human hair, 32 baobab fruitshells, 33 sewage sludge, 34 and wild jujube pits, 35 these natural materials have been chemically converted into active carbon for supercapacitors because of their rich source, inexpensive and unique structure. The Hibiscus sabdariffa (Roselle) is a plant with beautiful red flowers grown for production and sometimes for decoration that grows in El-Debibat City, Kordofan State, Sudan, and other parts of the word.…”

Biomass Derived Sheet-like Carbon/Palladium Nanocomposite: An Excellent Opportunity for Reduction of Toxic Hexavalent Chromium

“…20.8 and 43.5°(Figure 1a) due to (002) and (100) diffraction planes of the graphitized carbon, respectively. 25 On the other hand, aside from the (002) diffraction peak, additional sharp diffraction peaks at 2θ = 40.1, 46.6, 67.9, and 82.0°were observed for the Pd@GAC nanocomposite (Figure 1a), which can be assigned to the (111), ( 200), (220), and (311) crystalline facets of the face-center-cubic (fcc) structure of Pd metal (JCPDS card no. 46−1043).…”