Mesoporous Metal and Metal Alloy Particles Synthesized by Aerosol-Assisted Confined Growth of Nanocrystals
作者:Qiangfeng Xiao、Hiesang Sohn、Zheng Chen、Daniel Toso、Matthew Mechlenburg、Z. Hong Zhou、Eric Poirier、Anne Dailly、Haiqiang Wang、Zhongbiao Wu、Mei Cai、Yunfeng Lu
DOI:10.1002/anie.201204289
日期:2012.10.15
From droplets to “spheres”: A platform technology enables the rapid and continuous synthesis of mesoporousmetal and metalalloyparticles (see picture). The confinedgrowth of nanocrystals in aerosol droplets leads to the formation of these particles with defined composition.
One-step concurrent growth of a Co9S8/carbon nanosheet composite as an efficient and robust oxygen evolution electrocatalyst.
一步法同时生长 Co9S8/碳纳米片复合材料,使其成为高效、稳健的氧进化电催化剂。
Ultrathin Amorphous Nickel Doped Cobalt Phosphates with Highly Ordered Mesoporous Structures as Efficient Electrocatalyst for Oxygen Evolution Reaction
作者:Lan Yang、Hao Ren、Qinghua Liang、Khang Ngoc Dinh、Raksha Dangol、Qingyu Yan
DOI:10.1002/smll.201906766
日期:2020.2
performances in terms of intrinsic activity, and low kinetic barrier toward the oxygenevolution reaction (OER). Particularly, the optimized 10 at% Ni-doped CoPi nanoflakes (denoted as Ni10-CoPi) deliver a low overpotential at 10 mA cm-2 (320 mV), small Tafel slope (44.5 mV dec-1 ), and high stability for OER in 1.0 m KOH solution, which is comparable to the state-of-the-art RuO2 tested in the same condition
本文报道了通过油相法轻松制备超薄(厚度约3.8 nm)的2D磷酸钴(CoPi)纳米薄片的方法。所获得的纳米薄片由高度有序的中孔(直径约3.74 nm)结构组成,并表现出无定形性质。有吸引力的是,当掺杂有镍时,这种2D介孔Ni掺杂的CoPi纳米片就固有活性而言表现出良好的电催化性能,并且对氧析出反应(OER)的动力学障碍较低。特别是,优化的10 at%的Ni掺杂CoPi纳米薄片(表示为Ni10-CoPi)在10 mA cm-2(320 mV)时具有低过电势,小的Tafel斜率(44.5 mV dec-1)和对OER的高稳定性在1.0 m KOH溶液中溶解,与在相同条件下测试的最新RuO2相当(在10 mA cm-2下,过电势:327 mV,Tafel斜率:73。dec-1为7 mV)。坚固的框架加上良好的OER性能,使2D介孔Ni10-CoPi纳米薄片成为能量转换应用中有希望的材料。
作者:Joseph C. Bear、William J. Peveler、Paul D. McNaughter、Ivan P. Parkin、Paul O'Brien、Charles W. Dunnill
DOI:10.1039/c5cc03419a
日期:——
Sulfur based mouldable nanocomposite polymers by “inverse vulcanisation”. Functional materials from waste.
通过“反向硫化”制备的硫基可塑纳米复合聚合物。 从废弃物中获得功能材料。
Rapid and large-scale synthesis of bare Co<sub>3</sub>O<sub>4</sub>porous nanostructures from an oleate precursor as superior Li-ion anodes with long-cycle lives
and excellent cycling performance, which may be beneficial to promote the further development of the next generation of lithium ion batteries. The synthetic route can offer great advantages for the flash preparation of other metal oxide nanocrystals for energy storage application.
在这项研究中,我们描述了通过煅烧处理快速,环保的方法,该方法从油酸钴(II)配合物中合成了裸露的Co 3 O 4纳米晶体。当直接用作锂离子电池(LIB)的负极材料时,所制备的纳米晶体在250次循环后可在100 mA g -1的电流密度下提供980 mA hg -1的高可逆容量,并具有出色的循环性能,这可能有利于促进下一代锂离子电池的进一步发展。合成路线可为其他用于能量存储应用的金属氧化物纳米晶体的快速制备提供巨大优势。