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您的检索式：作者名="Chun‑Zhen Hua"
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| 1 | Atomically Dispersed Dual‑Metal Sites Showing Unique Reactivity and Dynamism for Electrocatalysis显示文摘The real structure and in situ evolution of catalysts under working conditions are of paramount importance,especially for bifunctional electrocatalysis.Here,we report asymmetric structural evolution and dynamic hydrogen-bonding promotion mechanism of an atomically dispersed electrocatalyst.Pyrolysis of Co/Ni-doped MAF-4/ZIF-8 yielded nitrogen-doped porous carbons functionalized by atomically dispersed Co–Ni dual-metal sites with an unprecedented N8V4 structure,which can serve as an efficient bifunctional electrocatalyst for overall water splitting.More importantly,the electrocatalyst showed remarkable activation behavior due to the in situ oxidation of the carbon substrate to form C–OH groups.Density functional theory calculations suggested that the flexible C–OH groups can form reversible hydrogen bonds with the oxygen evolution reaction intermediates,giving a bridge between elementary reactions to break the conventional scaling relationship. | Jun‑Xi Wu Wen‑Xing Chen Chun‑Ting He Kai Zheng Lin‑Ling Zhuo Zhen‑Hua Zhao Jie‑Peng Zhang | 2023 | Nano-Micro Letters2023，15，8： | 1 |
| 2 | Diagnosis,treatment,and prevention of severe acute hepatitis of unknown etiology in children显示文摘Background Severe acute hepatitis of unknown etiology in children has recently exhibited a global trend of concentrated occurrence.This review aimed to summarize the current available information regarding the outbreak of severe acute hepatitis and introduce our hospital’s previous experiences with the diagnosis and treatment of severe acute hepatitis for reference.Data sources Websites including the UK Health Security Agency,European Centre for Disease Prevention and Control,CDC,WHO,and databases including PubMed/Medline,Cochrane Library,Embase and Web of Science were searched for articles on severe acute hepatitis in children.Results As of May 26,2022,a total of 650 cases have been reported in 33 countries;at least 38(6%)children required liver transplantation,and nine(1%)died.Cases are predominantly aged between 3 and 5 years old,and there are no epidemiological links among them.The common manifestations are jaundice,vomiting and pale stools.Adenovirus tested positive in most cases,and SARS-CoV-2 and other viruses were detected in a few cases,but virus particles were not found in liver tissue.Adenovirus immunohistochemistry showed immunoreactivity in the intrasinusoidal lumen from some liver samples.The hierarchical treatment includes symptomatic and supportive therapy,management of coagulation disorders and hepatic encephalopathy,artifcial liver support,and liver transplantation(approximately 6%–10%of cases require liver transplant).Conclusions The etiology of this severe acute hepatitis in children is not clear.The clinical features are severe acute hepatitis with signifcantly elevated liver enzymes.Clinicians need to be alert to children with hepatitis. | Ying‑Hu Chen Jin‑Gan Lou Zi‑Hao Yang Qing‑Jiang Chen Chun‑Zhen Hua Sheng Ye Chen‑Mei Zhang Jie Chen Zong‑Wei Huang Jin‑Dan Yu Zhi‑Gang Gao Qiang Shu | 2022 | World Journal of Pediatrics2022，18，8： | 2 |
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