Results 41 to 50 of about 537,120 (143)
Rare Metals, Volume 45, Issue 5, May 2026.ABSTRACT Thermo‐responsive hydrogels based on poly(N‐isopropylacrylamide) (PNIPAM) are promising candidates for soft actuation, yet their practical applications are often constrained by sluggish thermo‐responsive kinetics and insufficient mechanical robustness.
Hui Liu +5 more
wiley +1 more source
, 1985 本I作用红外光谱和X射线衍射分析的方法着重研究了PbO_2与多元醇（乙二醇、丙三醇、木（左米右广）醇和甘露醇）的氧化还原反应，发现无论在水溶液中还是在氢氧化钠碱溶液中，多元醇是被氧化成羧酸盐，而PbO_2本身则还原成二价铅。使用紫外分光光度法测定了Pb(II)与多元醇在氢氧化钠(0.1N)碱性溶液中能形成1:1络合物，并通过离了交换法检测出此络合物在碱性溶液中为带负电荷的阴络离子。在温度25 ℃和KNO_3介质条件下用pH－电位滴定法研究了在碱性溶液中此络合物的水解和中和反应 ...
吴建国
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Rare Metals, Volume 45, Issue 5, May 2026.ABSTRACT The development of high‐voltage aqueous zinc‐ion batteries (AZIBs) is primarily hindered by the lack of suitable cathode materials and electrolytes that can work in broad voltage windows. Herein, we propose a synergistic strategy that concurrently addresses these challenges through the integration of an amorphous vanadium oxyphosphate/graphene
Xianyu Liu +7 more
wiley +1 more source
, 2011 本发明涉及一种制备SPE水电解阳极析氧催化剂的方法，它主要是通过将RuCl3,H2PtCl6、H2IrCl6等金属盐的前驱体溶解于乙醇/水溶液中，由NaHCO3的乙醇/水调节溶液的pH值，再经过陈化、分离、洗涤、焙烧等步骤，制备高析氧活性的贵金属氧化物，以降低贵金属的担载量，从而降低SPE水电解技术的成本，为其进一步的商业化应用奠定基础 ...
于广欣 +4 more
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四川大学学报. 自然科学版, 2002 作者通过对NaOH与氟碳铈矿反应的化学原理分析 ,较系统地研究了NaOH溶液对氟碳铈矿分解的影响 ,在此基础上确定了“氢氧化钠 盐酸”优溶法生产富镧氯化稀土的最佳条件 :精矿∶NaOH =1∶0 .7、NaOH浓度为 6 0 %、分解温度为 12 0℃、分解时间 1h .其优溶率达到4 0 .1% ,即非铈稀土的优溶率达到 80 %以上 .此优溶率达到了传统的“盐酸 氢氧化钠”分解方式的 2 ...
赵仕林 +3 more
doaj
Rare Metals, Volume 45, Issue 4, April 2026.ABSTRACT Developing oxygen evolution reaction (OER) catalysts that combine high performance with cost‐effectiveness is a critical challenge for advancing the commercialization of anion exchange membrane water electrolysis (AEMWE). Practical application is often hindered by issues such as poor batch reproducibility and low‐cost efficiency.
Chuang Zhang +9 more
wiley +1 more source
, 2008 提出了一种新的采用溶析法分解铝酸钠溶液制备氢氧化铝的方法,成功制备了超细氢氧化铝。考察了分解温度、铝酸钠溶液浓度、分子比、溶析剂体积比等工艺参数对铝酸钠溶液分解率的影响,发现在常温下,Al2O3100~200g/L、分子比1.4~2.0的铝酸钠溶液与同体积的溶析剂反应,铝酸钠分解率大于90%。运用激光粒度分析仪、SEM、XRD、TG-DTA对粒子的性能进行了表征,结果表明产品为拜耳石片状晶体,产品晶型完整、粒度分布均匀 ...
王雪, 张懿, 郑诗礼
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Rare Metals, Volume 45, Issue 4, April 2026.ABSTRACT Sodium metal batteries (SMBs) are regarded as promising candidates for next‐generation energy storage systems owing to their high theoretical energy density and low cost. However, their practical development is hindered by the instability of the electrode–electrolyte interphase (EEI), particularly under high‐voltage operation.
Xingyu Yang +10 more
wiley +1 more source
, 2006 本发明涉及一种催化分解环己烷过氧化氢方法，以β型分子筛为催化剂，在液相条件下，将环己烷过氧化氢转化为环己醇和环己酮：将催化剂与环己烷过氧化氢的环己烷溶液于0.1-1Mpa，所述催化剂用量按反应物溶液总重量计为0.05-5％，以50-1500转/分钟搅拌升温至50-150℃，恒温反应0.1-5小时后，取出反应生成物。与现有的催化分解环己烷过氧化氢催化剂如负载型贵金属或过渡金属型催化剂相比，本发明所使用的催化剂具有价廉易得、使用方便等特点 ...
徐 杰, 张 伟, 孙志强
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Gongye shui chuli, 2009 采用溶胶凝胶技术制备电气石/TiO2复合光催化材料,研究其光催化反应体系中的溶解氧含量、水分子团结构等,并结合光催化降解甲基橙实验对光催化反应机理进行了初探。研究表明,随着电气石/TiO2复合光催化材料质量分数的增加,反应体系中溶解氧含量的增长速度明显加快,但溶解氧含量的饱和值十分接近,均在8.15mg/L附近。同时,电气石/TiO2复合光催化材料的质量分数为0.1%时,静置2h后的水样峰宽由93.
冯艳文, 张青, 朱华静
doaj +2 more sources