Results 51 to 60 of about 635,480 (134)
Rare Metals, Volume 45, Issue 9, September 2026.ABSTRACT Ultrathin sodium (Na) metal anodes (< 40 μm) with superior electrochemical performance are essential in developing high‐energy‐density sodium metal batteries (SMBs). Nonetheless, Metallic Na's poor processability hinders its practical application.
Hao Yao +6 more
wiley +1 more source
, 2008 一种制备醇的多相催化剂及制备方法和应用。该催化剂制备步骤包括 (a)制备含有巯基或CH＝CH2的功能化的载体；(b)在步骤a制备的载体上同时聚合了催化剂和季铵盐；(c)将步骤b的产物溶解在H2O中，加入金属催化剂前驱体，得到多相催化剂。本发明的多相催化剂制备简单，反应操作方便，用此催化剂在醛氢转移反应，制备醇的产物，具有专一的化学选择性，并表现出比相应均相催化剂高9倍的活性，催化剂能够多次循环使用 ...
张艳梅, 李 灿, 李 军
core
Zhongguo youzhi旨在为降低机械破壳时核桃仁的种皮损伤提供参考，以不同加载方向和加载速度对原果核桃和核桃半仁进行单轴挤压试验，探究其在不同加载条件下核桃的受力情况及其仁种皮损伤情况。结果表明，加载方向对原果核桃和核桃半仁的挤压载荷峰值和种皮损伤面积的影响更显著，其中：沿核桃原果纵径方向挤压时所需载荷峰值明显大于棱径方向和横径方向的，沿核桃半仁厚度方向挤压时所需载荷峰值明显大于长度方向和宽度方向的；沿原果核桃横径方向挤压时的种皮损伤程度显著小于沿纵径方向和棱径方向的，沿核桃半仁厚度前部挤压时的种皮损伤面积最小。综上 ...
朱占江1，渠述贺1，2，毛吾兰1，杨莉玲1，买合木江·巴吐尔1，沈晓贺1 ZHU Zhanjiang1, QU Shuhe1,2, MAO Wulan1, YANG Liling1, MAIHEMUJIANG·Batuer1, SHEN Xiaohe1
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Rare Metals, Volume 45, Issue 9, September 2026.ABSTRACT Traditional electromagnetic shielding materials mainly focus on attenuating electromagnetic interference (EMI), but they still fail to meet the growing demands of modern flexible electronic devices and Internet‐related information technologies.
Zhi Lei +6 more
wiley +1 more source
, 2005 一种丹参素的制备方法，工艺过程如下：以丹参为原料获得含有丹参素及丹参素前体的水或醇的提取液；用稀碱将上述提取液中的丹参素前体转化为丹参素；用超滤膜将上述转化后的提取液超滤除去大分子物质；自上述超滤后的提取液中将丹参素萃出；用正相色谱方法分离出上述萃取获得的丹参素。本发明所述萃取与色谱联用制备丹参素的方法，基本解决了药用丹参素制备中纯度、收率和处理量三个相互矛盾的根本问题，为高纯度药用丹参素的制备提供了一种简单、方便、回收率高、成本低的批量制备方法。使用本方法制备的丹参素含量≥95％，回收率≥70 ...
杨凌, 何克江, 杨义
core
Toward a New Generation of AI‐Enabled Wearable Sensors
Rare Metals, Volume 45, Issue 9, September 2026.ABSTRACT Wearable sensors have emerged as important platforms for noninvasive, real‐time, and continuous monitoring of physiological information, with growing applications in personalized healthcare, human‐machine interfaces (HMIs), and robotic empowerment.
Tianqi Yang +7 more
wiley +1 more source
, 2016 本发明公开了一种莫特晶体管及其制备方法，其中方法包括如下步骤：采用镀膜工艺在衬底表面制备栅极，并在栅极表面依次制备栅介质层和沟道层；并在未被沟道层覆盖的栅介质层表面制备源极和漏极，完成底栅结构的莫特晶体管的制备；或采用镀膜工艺在衬底表面依次制备沟道层和栅介质层，并在未被栅介质层覆盖的沟道层表面制备源极和漏极，在栅介质层表面制备栅极，完成顶栅结构的莫特晶体管的制备；其中，沟道层为莫特绝缘体薄膜；栅介质层为固态氧化物质子导体膜。其实现了莫特晶体管的全固态结构。由此，当制备的莫特晶体管中进行莫特转变时 ...
曹鸿涛, 张莉莉, 张洪亮, 李龙
core
Rare Metals, Volume 45, Issue 9, September 2026.ABSTRACT The escalating severity of global environmental pollution necessitates the development of sustainable and efficient adsorption materials. Nanocellulose (NC), sourced from the most abundant natural polymer on earth, has shown great potential in this field due to its renewability, biodegradability, and exceptional nanoscale properties.
Yaqian Yu +5 more
wiley +1 more source
, 2011 本发明是关于一种用于制备质子交换膜燃料电池催化膜电极的催化剂浆料，由电催化剂、质子导体聚合物蒸馏水和有机溶剂组成，通过控制催化剂浆料为胶体状态，改善了所制备催化膜电极催化层的孔隙结构，提高了电池性能。传统制备催化膜电极的浆料为溶液态，所制备电极的催化剂利用率不高，且催化层的孔隙率很低，不利于气体扩散过程。本发明改变了浆料中有机溶剂的组成以及添加顺序，首先利用异丙醇、乙醇、乙二醇等调制溶液态的催化剂浆料，然后在超声波振荡的条件下将所形成浆料滴加到醋酸丁酯中，进而形成胶体态的催化剂浆料 ...
邵志刚, 衣宝廉, 宋微, 俞红梅
core
Rare Metals, Volume 45, Issue 9, September 2026.ABSTRACT Lignin hydrogenolysis is a promising route to separable aromatic monomers, yet practical upgrading is still hindered by macromolecular mass‐transfer limitations and the aggregation/deactivation of metal sites. Herein, we propose a “dual‐confinement” strategy to construct ultrafine Ru nanoclusters supported on lignin‐based N‐doped hierarchical ...
Tianjin Li +11 more
wiley +1 more source