【摘 要】
:
Although tremendous efforts have been paid on electrocatalysts toward efficient electrochemical hydrogen generation,breakthrough is still highly needed in the d
【机 构】
:
Guangxi Key Laboratory of Chemistry and Engineering of Forest Products,Guangxi Collaborative Innovat
论文部分内容阅读
Although tremendous efforts have been paid on electrocatalysts toward efficient electrochemical hydrogen generation,breakthrough is still highly needed in the design and synthesis of wonderful non-precious-metal electrocatalyst.Herein,a nanovilli Ni2P electrode,which with superaerophobic and superhydropholic can significantly facilitate the mass and electron transfer was constructed via a facial morphology control strategy.Meanwhile,the substitution of sluggish oxygen evolution with urea oxidation,lowering the two-electrode cell voltage to only 1.48 volts to achieve a current density of 10 mA·cm-2.Thus,the as-constructed electrode achieves the operation of hydrogen generation by an AA battery.This work sheds new light on the exploration of other high-efficient electrocatalysts for hydrogen generation by using intermittent clean energy.
其他文献
为研究大气污染物时间序列的非线性特征,基于2016年1月至2017年12月衡阳市PM2.5和PM10质量浓度时间序列,应用可视图方法将两组时间序列映射到复杂网络中,并研究了相应网络的拓扑性质。结果表明:PM2.5和PM10浓度时间序列网络的平均聚类系数、直径、网络密度和平均路径长度等网络特征参数和统计特征参数基本相同。PM2.5浓度时间序列在局部变化趋于平缓,矩阵图中存在明显聚集现象;PM10浓度时间序列存在多个局部峰值,矩阵图中表现为多个重叠的大正方形。两个时间序列网络的累积度分布都具有幂律特征,网络具
Acute kidney injury (AKI),has become the focus of increasing attention due to its high risk of death.The early diagnosis and treatment of AKI significantly redu
Support materials play a significant role in heterogeneous nanocatalysis.In this work,β-cyclodextrin (β-CD) was used directly as a monomer to construct polyme
为了提高混凝土结构抗硫酸盐侵蚀,采用共沉淀法制备钴铁镁铝四元水滑石,采用固相混合法制备钴铁镁铝水滑石-碳纳米管复合材料。将其应用于水泥净浆中,研究了龄期、浓度对固化硫酸根离子性能的影响,结果表明:和普通水泥净浆相比,加入钴铁镁铝水滑石-碳纳米管后,对SO2-4固化能力得到了明显的提升,在7 d,SO2-4浓度为0.05 mol/L时,其固化量由97.46 mg/g增加到107.11 mg/g;CoFeMgAl-LDHs
研究了铀溶液初始pH、HCO-3质量浓度和硫化纳米零价铁(sulfidized nano-scale zerovalent iron,SnZVI)投加量对SnZVI去除铀的动力学过程的影响,并通过SEM、XRD和XPS阐明SnZVI去除铀的机理。球形SnZVI颗粒直径为100~200 nm,比表面积为43.5 m2/g。SnZVI颗粒中含有Fe和FeS,且Fe(0)和Fe(Ⅱ)含量超过80%。SnZVI去除铀的动力学过程符合准一级动力学模型
Two-dimensional (2D) materials,such as transition metal dichalcogenides (TMDs),black phosphorus (BP),MXene and borophene,have aroused extensive attention since
Silicon is a low price and high capacity anode material for lithium-ion batteries.The yolk-shell structure can effectively accommodate Si expansion to improve s
The demand for high-performance non-precious-metal electrocatalysts to replace the noble metal-based catalysts for oxygen reduction reaction (ORR) is intensivel
Hexagonal molybdenum carbide (Mo2C) as an effective non-noble cocatalyst is intensively researched in the photocatalytic H2-evolution field owing to its Pt-like
Herein,a two-dimensional (2D) interspace-confined synthetic strategy is developed for producing MoS-2-intercalated graphite (G-MoS2)hetero-layers composite thro