Results 21 to 30 of about 12,828 (116)
ABSTRACT The development of efficient and stable bifunctional catalysts remains a key challenge for green hydrogen production via electrochemical water splitting. In this study, a bimetallic Mo/Fe‐doped CoP2 nanoleaf array anchored on carbon cloth (Mo, Fe‐CoP2@CC) was synthesized from zeolitic imidazolate framework‐L (ZIF‐L) via an ion‐exchange and low‐
Xiangqun Zeng +6 more
wiley +1 more source
研究结果表明,湖南几种常见的菜园土壤对铅的吸持量大小顺序为:红灰菜园土〉紫泥菜园土〉黄沙菜园土〉红菜园土。后3种土壤对铅的吸持过程均可用Langmuir、Freundlish和Temkin方程来描述;红菜园土和黄沙菜园土的最大吸持量是5588.88mg/kg和8516.46mg/kg;除红灰菜园土以外,另外3种土壤的解吸量及解吸率都随吸持铅量的增大而大。
谭长银 岳振华
doaj +2 more sources
ABSTRACT Precise control of chemical ordering in bimetallic nanocatalysts offers a route to decouple activity and selectivity in acetylene hydrogenation, but direct atomic‐scale evidence linking surface order to catalytic performance is scarce. Here, we tune Pd‐Cu nanoalloys from chemically disordered to highly ordered states by composition control and
Fan Xue +5 more
wiley +1 more source
以蒙山茶园土为对象,运用平衡液吸附法以及NaNO3溶液解吸法探讨了柠檬酸对原土及各粒径土壤微团聚体吸附-解吸Cu2+的特性,以期明确柠檬酸对土壤吸附解吸铜的过程中产生的影响。结果表明,加入柠檬酸后,随着Cu2+浓度的增加,原土和各粒径土壤微团聚体对Cu2+的吸附有所增加,吸附量大小顺序为:(<0.002 mm)>(0.053~0.002)mm>原土>(2~0.25)mm>(0.25~0.053)mm,与土壤微团聚体中游离氧化铁、阳离子交换量以及有机质含量大小顺序一致;柠檬酸对Cu2 ...
李欣雨 +4 more
doaj
为探讨生物质炭对红壤性水稻土中镉(Cd)元素吸附解吸特性的影响,采用一次平衡法研究添加生物质炭后Cd2+在红壤性水稻土中的吸附动力学、等温吸附和解吸过程。结果表明:施用CK (0 t/hm2)、A10(10 t/hm2)、A20(20 t/hm2)、A30(30 t/hm2)和A40(40 t/hm2)生物质炭后,红壤性水稻土对Cd2+的吸附过程是以化学吸附为主、非均匀的多表面吸附。施用CK (0 t/hm2)、A10(10 t/h2)、A20(20 t/hm2)、A30(30 t/hm2)和A40 ...
胡世民 +5 more
doaj
ABSTRACT Photocatalytic hydrogen production from water splitting is a promising strategy for sustainable and clean energy generation. However, the design of low‐cost, highly active photocatalysts remains a critical challenge. In this study, covalent organic frameworks (COFs) were loaded onto the surface of Cd0.9Cu0.1S to fabricate COF/Cd0.9Cu0.1S ...
Yue Zhao +3 more
wiley +1 more source
ABSTRACT The development of efficient and stable bifunctional electrocatalysts is a key challenge for the industrialization of hydrogen production by water electrolysis. In this work, Co‐doped NiS/Ni3S2 heterostructured nanowire arrays (Co–NiS/Ni3S2 NA) were successfully constructed by precisely modulating the phase‐selective behavior of nickel ...
Xing‐Hang Liu +2 more
wiley +1 more source
ABSTRACT Platinum (Pt)‐based catalysts are crucial for the commercialization of hydrogen/metal air batteries, but they suffer from Pt scarcity, high cost, and nanoparticle dissolution/agglomeration, mainly leading to performance degradation. We address this by synthesizing a PtFe alloy catalyst (PtFe–PA–NC) via a phytic acid (PA) assisted pyrolysis ...
Chenyang Shu +9 more
wiley +1 more source
目前,吸附型血液解毒装置的研究,在国际上正广泛开展,并已正式应用于临床。它可作为急救解毒装置、吸附型人工肾脏、人工肝脏的主要部件。近年,我国天津等地研制成功血液解毒装置,包括吸附罐、包囊活性炭及其管道系统。我们用该装置作家犬戊巴比妥中毒解毒作用的实验研究,对其吸附解毒性能和血液毒物浓度进行了动态观察,现将实验结果报告如下。
李士梅
doaj
Tailoring Spin States of CuNNi3 via d‐d Orbital Coupling for High Performance Water Splitting
ABSTRACT Against the backdrop of escalating global energy crises and environmental challenges, the development of clean and sustainable hydrogen energy has become increasingly imperative. Hydrogen production via water electrolysis is widely regarded as a promising approach due to its green and efficient characteristics.
Weigao Zhong +6 more
wiley +1 more source

