Seawater electrolysis is an appealing route toward sustainable hydrogen production,yet its practical deployment is hindered by severe chloride-induced corrosion and parasitic chlorine oxidation.Here,we report noble me...Seawater electrolysis is an appealing route toward sustainable hydrogen production,yet its practical deployment is hindered by severe chloride-induced corrosion and parasitic chlorine oxidation.Here,we report noble metal-doped NiV layered double hydroxides(LDHs)that integrate electronic modulation with a dual chloride confinement mechanism.Ir incorporation simultaneously establishes strong Ir-Cl coordination and dynamically regenerated VO_(4)^(3-)layers,producing an adaptive electrostatic shield that effectively suppresses chloride penetration.As a result,Ir-NiV LDH delivers nearly 100%oxygen evolution reaction selectivity and outstanding stability over2750 h at 500 mA cm^(-2).Meanwhile,Ru doping optimizes the hydrogen evolution pathway,enabling a low overpotential of 195 mV and>2350 h durability.When paired in a twso-electrode electrolyzer,the Ru-NiVLDH‖Ir-NiVLDH system exhibits industrial-level performance and unprecedented robustness in alkaline seawater.This dual chloride confinement concept provides a general framework for catalyst design in corrosive ionic environments,extending beyond seawater splitting toward other electrochemical energy conversion processes.展开更多
目的分析甲泼尼龙琥珀酸钠辅助治疗儿童重症肺炎支原体肺炎(SMPP)的临床疗效及对患儿血乳酸脱氢酶(LDH)、C反应蛋白(CRP)和T淋巴细胞亚群的影响。方法选取2023年1月—2024年1月于河北医科大学第二医院儿科收治的120例重症支原体肺炎患...目的分析甲泼尼龙琥珀酸钠辅助治疗儿童重症肺炎支原体肺炎(SMPP)的临床疗效及对患儿血乳酸脱氢酶(LDH)、C反应蛋白(CRP)和T淋巴细胞亚群的影响。方法选取2023年1月—2024年1月于河北医科大学第二医院儿科收治的120例重症支原体肺炎患儿为研究对象。其中治疗组(常规治疗基础上加上甲泼尼龙琥珀酸钠)80例,其中使用甲泼尼龙琥珀酸钠3 d 40例(短疗程组),使用5 d 40例(延长组),对照组(常规治疗)40例。通过两两比较患儿体温正常、咳嗽消失及啰音消失时间,治疗前后CRP及LDH改善情况进行综合分析。结果与对照组相比,治疗组患儿体温正常、啰音消失、咳嗽消失的时间更短,两者比较差异有统计学意义;治疗组中短疗程组与延长组比较,两组患儿体温正常、啰音消失、咳嗽消失的时间差异均无统计学意义。在炎症指标方面(CRP和LDH),两组患儿治疗前比较差异均无统计学意义,治疗后治疗组改善情况优于对照组,两者比较差异均有统计学意义;其中治疗组两者比较,治疗前后CRP及LDH改善情况差异均无统计学意义。在T淋巴细胞亚群的比较中,与对照组相比,治疗组CD4^(+)及CD8^(+)的改善更明显,两者比较差异均有统计学意义;治疗组中短疗程组与延长组比较,两组患儿CD4^(+)及CD8^(+)的改善均无统计学意义。结论甲泼尼龙琥珀酸钠辅助治疗儿童SMPP临床疗效显著,可以缩短患儿体温正常、咳嗽消失及啰音消失时间,还可以明显改善炎症指标(CRP及LDH)恢复情况,从而减少患儿痛苦,缩短住院时间。展开更多
基金supported by the National Natural Science Foundation of China(No.22209115,52472226,and U23A20573)the Key Research and Development Program of Shandong Province(No.2022CXGC010305)+2 种基金Guangdong Basic and Applied Basic Research Foundation(No.2025A1515011809,2023B1515120022 and 2022B1515120001)Shenzhen Science and Technology Innovation Program(No.RCBS20231211090522040,KJZD20240903095610014,and KJZD20240903095712017)the High-Level Professional Team in Shenzhen(KQTD20210811090045006)。
文摘Seawater electrolysis is an appealing route toward sustainable hydrogen production,yet its practical deployment is hindered by severe chloride-induced corrosion and parasitic chlorine oxidation.Here,we report noble metal-doped NiV layered double hydroxides(LDHs)that integrate electronic modulation with a dual chloride confinement mechanism.Ir incorporation simultaneously establishes strong Ir-Cl coordination and dynamically regenerated VO_(4)^(3-)layers,producing an adaptive electrostatic shield that effectively suppresses chloride penetration.As a result,Ir-NiV LDH delivers nearly 100%oxygen evolution reaction selectivity and outstanding stability over2750 h at 500 mA cm^(-2).Meanwhile,Ru doping optimizes the hydrogen evolution pathway,enabling a low overpotential of 195 mV and>2350 h durability.When paired in a twso-electrode electrolyzer,the Ru-NiVLDH‖Ir-NiVLDH system exhibits industrial-level performance and unprecedented robustness in alkaline seawater.This dual chloride confinement concept provides a general framework for catalyst design in corrosive ionic environments,extending beyond seawater splitting toward other electrochemical energy conversion processes.
文摘目的分析甲泼尼龙琥珀酸钠辅助治疗儿童重症肺炎支原体肺炎(SMPP)的临床疗效及对患儿血乳酸脱氢酶(LDH)、C反应蛋白(CRP)和T淋巴细胞亚群的影响。方法选取2023年1月—2024年1月于河北医科大学第二医院儿科收治的120例重症支原体肺炎患儿为研究对象。其中治疗组(常规治疗基础上加上甲泼尼龙琥珀酸钠)80例,其中使用甲泼尼龙琥珀酸钠3 d 40例(短疗程组),使用5 d 40例(延长组),对照组(常规治疗)40例。通过两两比较患儿体温正常、咳嗽消失及啰音消失时间,治疗前后CRP及LDH改善情况进行综合分析。结果与对照组相比,治疗组患儿体温正常、啰音消失、咳嗽消失的时间更短,两者比较差异有统计学意义;治疗组中短疗程组与延长组比较,两组患儿体温正常、啰音消失、咳嗽消失的时间差异均无统计学意义。在炎症指标方面(CRP和LDH),两组患儿治疗前比较差异均无统计学意义,治疗后治疗组改善情况优于对照组,两者比较差异均有统计学意义;其中治疗组两者比较,治疗前后CRP及LDH改善情况差异均无统计学意义。在T淋巴细胞亚群的比较中,与对照组相比,治疗组CD4^(+)及CD8^(+)的改善更明显,两者比较差异均有统计学意义;治疗组中短疗程组与延长组比较,两组患儿CD4^(+)及CD8^(+)的改善均无统计学意义。结论甲泼尼龙琥珀酸钠辅助治疗儿童SMPP临床疗效显著,可以缩短患儿体温正常、咳嗽消失及啰音消失时间,还可以明显改善炎症指标(CRP及LDH)恢复情况,从而减少患儿痛苦,缩短住院时间。
