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Carbon aerogels are ultralight, conductive materials, which are extensively investigated for applications in supercapacitor electrodes in electrical cars and cell phones. Chinese scientists have now found a way to make these electrodes sustainably. The aerogels can be obtained directly from cellulose nanofibrils, the abundant cell-wall material in wood, finds the study reported in the journal Angewandte Chemie. Supercapacitors are capacitors that can take up and release a very large amount of energy in a very short time. Key requirements for supercapacitor electrodes are a large surface area and conductivity, combined with a simple production method. Another growing issue in supercapacitor production—mainly for smartphone and electric car technologies—is sustainability. However, sustainable and economical production of carbon aerogels as supercapacitor electrode materials is possible, propose Shu-Hong Yu and colleagues from the University of Science and Technology of China, Hefei, China. Click Read More below for additional information.

Second quarter results were constrained by continued demand weakness, particularly at FedEx Express. FedEx Express operating income declined 64% year-over-year due to lower global volumes, partially offset by an 8% package yield increase. FedEx Express implemented previously planned and incremental cost reduction actions during the quarter to mitigate the impact of volume declines, including structural air network changes and the temporary parking of aircraft. FedEx Ground operating income increased 24% year-over-year, due primarily to a 13% yield increase and cost reduction actions. These factors were partially offset by increased purchased transportation rates, lower package volume, and higher other operating expenses. FedEx Freight operating income increased 32% year-over-year, driven by an 18% yield increase. This was partially offset by higher salaries and employee benefits and decreased shipments. Second quarter fiscal 2022 net income included a pre-tax, noncash MTM net loss of $260 million ($195 million, net of tax, or $0.73 per diluted share) related to the termination of a TNT Express European pension plan and a curtailment charge related to the U.S. FedEx Freight pension plan.

National Average Price for Regular Unleaded Current: $3.335; Month Ago: $3.417; Year Ago: $2.158. National Average Price for Diesel Current: $3.605; Month Ago: $3.642; Year Ago: $2.457.