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Exploiting highly active and bifunctional catalysts for both hydrogen evolution reaction (HER) and hydrazine oxidation reaction (HzOR) is a prerequisite for the hydrogen acquisition. High‐entropy materials have received widespread attention in catalysis, but the high‐performance bifunctional electrodes are still lacking. Herein, a novel P‐modified amorphous high‐entropy CoFeNiCrMn compound is developed on nickel foam (NF) by one‐step electrodeposition strategy. The achieved CoFeNiCrMnP/NF delivers remarkable HER and HzOR performance, where the overpotentials as low as 51 and 268 mV are realized at 100 mA cm−2. The improved cell voltage of 91 mV is further demonstrated at 100 mA cm−2 by assessing CoFeNiCrMnP/NF in the constructed hydrazine‐assisted water electrolyser, which is almost 1.54 V lower than the HER||OER system. Experimental results confirm the important role of each element in regulating the bifuncational performance of high‐entropy catalysts. The main influencing elements seem to be Fe and Ni for HER, while the P‐modification and Cr metal may contribute a lot for HzOR. These synergistic advantages help to lower the energy barriers and improve the reaction kinetics, resulting in the excellent bifunctional activity of the CoFeNiCrMnP/NF. The work offers a feasible strategy to develop self‐supporting electrode with high‐entropy materials for overall water splitting.

Summary Wampee (Clausena lansium) fruit is a good resource for food ingredient because of abundant bioactive compounds. This study investigated phenolics, flavonoids, phytochemical composition and antioxidant activities of five different varieties of wampee fruit. Phytochemical composition was analysed by HPLC, and the antioxidant activities of wampee fruits were detected by ORAC, DPPH, FRAP and PSC assays. Results showed that the variety of ‘YangShanDuHe (YSDH)’ contained the highest contents of total phenolics and flavonoids, and the highest value of three phytochemical compounds: vanillic acid, ferulic acid and rutin. The sweet wampee variety ‘CongChengTianHuangPi (CCTHP)’ showed the lowest values of total phenolics, flavonoids and antioxidant activities. According to the rank of five different varieties by the values of total phenolic and flavonoid contents and antioxidant activities, YSDH was characterised having the highest antioxidant potential, while the least one was CCTHP. These results may provide health guidance for wampee processing and consuming.

Summary Wampee (Clausena lansium) fruit is a seasonal food containing high levels of bioactive phytochemicals which may be useful for health benefits. This study compared the phytochemical composition, total and cellular antioxidant activities (CAA) as well as anti‐proliferative activities of five different varieties of wampee fruits. The results showed that six phytochemical compounds (vanillic acid, ferulic acid, rutin, syringin, catechin and hesperetin) were found in wampee fruits. Total antioxidant activities varied dramatically in these five varieties when measured with oxygen radical absorbance capacity assay and peroxyl radical scavenging capacity assay. The results also showed that wampee fruit extracts varied enormously in their CAA and exhibited significant anti‐proliferative activities against HepG2 human liver cancer cells. These results suggest the potential of wampee fruits as functional foods and industrial application of wampee fruit in the future.

Recovering phosphorus (P) from sewage sludge has been proposed as a promising substitute for phosphate ores, while hydrothermal carbonization (HTC) has emerged as an energy-efficient method for sewage sludge treatment with substantial merits. Migration and transformation of phosphorus in the sludge during HTC is vital for subsequent P recovery. In this study, the role of pH and calcium additive (CaCl2) in the partitioning and transformation of phosphorus species as well as the associated transformation mechanism was investigated via Standards, Measurements, and Testing Program analysis, X-ray diffraction analysis, and the aid of thermochemical equilibrium approach. The results indicated that higher feedwater pH and dosage of CaCl2 favored the enrichment of phosphorus in the hydorchars with R P > 80%, which was mainly presented as inorganic phosphorus. The obvious transformation from nonapatite inorganic phosphorus to apatite phosphorus was observed, promoting by higher feedwater pH or dosage of CaCl2. Unlike the addition of CaO, Ca3(PO4)2, and Ca2P2O7 have been calculated as the main Ca-associated phosphorus compounds at equilibrium state while less hydroxyapatite (Ca5(PO4)3OH) was reported. These findings were confirmed by XRD analyses well. The work described here can provide new insights into the phosphorus recovery from sewage sludge.

Developing highly-performance and low-cost self-supporting electrodes as pH-universal electrocatalysts for hydrogen evolution reaction (HER) and realizing high-quality hydrogen production at large current density is highly desirable, but it still remains...

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