慢性非特异性腰痛(chronic non-specific low back pain,CNLBP)是临床发病率较高的骨骼肌肉疾病,原发部位位于腰部,不伴神经根或特定器质性病变。CNLBP的病理机制尚不明确,相关研究表明,躯干深层神经肌肉的协调性下降、腰部柔韧性失衡...慢性非特异性腰痛(chronic non-specific low back pain,CNLBP)是临床发病率较高的骨骼肌肉疾病,原发部位位于腰部,不伴神经根或特定器质性病变。CNLBP的病理机制尚不明确,相关研究表明,躯干深层神经肌肉的协调性下降、腰部柔韧性失衡均可导致腰部核心稳定性减弱,从而引起慢性腰痛与腰部功能障碍[1-3]。展开更多
When compared with pure water,hydrogen produced by seawater electrolysis has a better practical application potential.By replacing the oxygen evolution reaction(OER)and competitive chlorine evolution reaction(ClER)wit...When compared with pure water,hydrogen produced by seawater electrolysis has a better practical application potential.By replacing the oxygen evolution reaction(OER)and competitive chlorine evolution reaction(ClER)with the thermodynamically favorable anodic hydrazine oxidation reaction(HzOR)in alkaline seawater,energy-saving hydrogen production can be achieved.In this study,Fe/Co dual-doped Ni_(2)P and MIL-FeCoNi heterostructures(FeCo-Ni_(2)P@MIL-FeCoNi)arrays with simultaneous cation doping and hetero-engineering provide excellent bifunctional electrocatalytic performance for HzOR and hydrogen evolution reaction(HER)in alkaline seawater electrolyte.Overall hydrazine splitting(OHzS)in seawater is impressive,with a low cell voltage of only 400 mV required to reach 1000 mA cm^(−2)and stable operation for 1000 h to maintain above 500 mA cm^(−2).As a proof-of-concept,the OHzS system can save 3.03 kW h when producing 1.0 normal cubic meter(Nm_(3))of H_(2) when compared with the N_(2)H_(4)-free seawater system,resulting in energy-saving H_(2) production.Density functional theory calculations show that the combination of Co-doping and the fabrication of FeCo-Ni_(2)P and MIL-FeCoNi heterointerfaces can result in a low water dissociation barrier,optimized hydrogen adsorption free energy toward HER,and favorable adsorbed dehydrogenation kinetics for HzOR.This processing route paves the way for a practical approach to the efficient utilization of hydrogen,which is abundant in the ocean energy field,to achieve a carbon-neutral hydrogen economy.展开更多
文摘慢性非特异性腰痛(chronic non-specific low back pain,CNLBP)是临床发病率较高的骨骼肌肉疾病,原发部位位于腰部,不伴神经根或特定器质性病变。CNLBP的病理机制尚不明确,相关研究表明,躯干深层神经肌肉的协调性下降、腰部柔韧性失衡均可导致腰部核心稳定性减弱,从而引起慢性腰痛与腰部功能障碍[1-3]。
基金supported by the National Natural Science Foundation of China(51772162 and 52072197)China Postdoctoral Science Foundation(2020M682135)+4 种基金the Postdoctoral Applied Research Project of Qingdao,the Outstanding Youth Foundation of Shandong Province,China(ZR2019JQ14)the Youth Innovation and Technology Foundation of Shandong Higher Education Institutions(2019KJC004)the Major Scientific and Technological Innovation Project(2019JZZY020405)the Major Basic Research Program of Natural Science Foundation of Shandong Province(ZR2020ZD09)Taishan Scholar Young Talent Program(tsqn201909114)。
文摘When compared with pure water,hydrogen produced by seawater electrolysis has a better practical application potential.By replacing the oxygen evolution reaction(OER)and competitive chlorine evolution reaction(ClER)with the thermodynamically favorable anodic hydrazine oxidation reaction(HzOR)in alkaline seawater,energy-saving hydrogen production can be achieved.In this study,Fe/Co dual-doped Ni_(2)P and MIL-FeCoNi heterostructures(FeCo-Ni_(2)P@MIL-FeCoNi)arrays with simultaneous cation doping and hetero-engineering provide excellent bifunctional electrocatalytic performance for HzOR and hydrogen evolution reaction(HER)in alkaline seawater electrolyte.Overall hydrazine splitting(OHzS)in seawater is impressive,with a low cell voltage of only 400 mV required to reach 1000 mA cm^(−2)and stable operation for 1000 h to maintain above 500 mA cm^(−2).As a proof-of-concept,the OHzS system can save 3.03 kW h when producing 1.0 normal cubic meter(Nm_(3))of H_(2) when compared with the N_(2)H_(4)-free seawater system,resulting in energy-saving H_(2) production.Density functional theory calculations show that the combination of Co-doping and the fabrication of FeCo-Ni_(2)P and MIL-FeCoNi heterointerfaces can result in a low water dissociation barrier,optimized hydrogen adsorption free energy toward HER,and favorable adsorbed dehydrogenation kinetics for HzOR.This processing route paves the way for a practical approach to the efficient utilization of hydrogen,which is abundant in the ocean energy field,to achieve a carbon-neutral hydrogen economy.
