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| 片状金粉的还原法制备及共烧特性研究 |
| Preparation and characteristics of the co-firing of flake gold powder by the reduction method |
| Received:July 22, 2024 |
| DOI： |
| 中文关键词: 片状金粉 制备 组氨酸 LTCC 共烧 |
| 英文关键词: flake gold powders preparation histidine LTCC co-firing |
| 基金项目: |
| Author Name | Affiliation | | ZHANG Xiaojie | Sino-Platinum Electronic Materials Yunnan Co. Ltd., Sino-Platinum Metals Co. Ltd., Kunming 650503, China | | XING Qisi | Sino-Platinum Electronic Materials Yunnan Co. Ltd., Sino-Platinum Metals Co. Ltd., Kunming 650503, China | | YAO Zhiqiang | Sino-Platinum Electronic Materials Yunnan Co. Ltd., Sino-Platinum Metals Co. Ltd., Kunming 650503, China | | ZHU Junyu | Sino-Platinum Electronic Materials Yunnan Co. Ltd., Sino-Platinum Metals Co. Ltd., Kunming 650503, China | | LI Wenlin | Sino-Platinum Electronic Materials Yunnan Co. Ltd., Sino-Platinum Metals Co. Ltd., Kunming 650503, China |
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| 中文摘要: |
| 在水溶液中，以阿拉伯树胶为保护剂，二甲基二烯丙基氯化铵(Dia)为结构导向剂，组氨酸(His)还原HAuCl4制备片状金粉。研究了用量(摩尔比)、温度、初始pH对金粉尺寸和形貌的影响。得到制备二维微米片状金粉的最佳条件:nHis:nAu=1:1，nDia:nAu=3:2，温度40 ℃，反应液初始pH=1.2，得到片径3~4 μm，厚度100~300 nm的六边形和三角形片状金粉。与国产LTCC生料带共烧，该片状金粉表现出优异的烧结匹配性和低电阻。 |
| 英文摘要: |
| Flake gold powders were synthesized in an aqueous solution by reducing HAuCl4 with histidine (His), using gum arabic as a protective agent and dimethyl diallyl ammonium chloride (DMDAAC, Dia) as a structure-directing agent. The effects of dosage (molar ratio), temperature, and initial pH on the size and morphology of the gold powders were investigated. The optimal conditions for preparing two-dimensional micron-sized flake gold powders were determined as follows: nHis:nAu=1:1, nDia:nAu =3:2, temperature of 40 °C, and initial pH of the reaction solution is 1.2. The hexagonal and triangular flake gold powders with lateral dimensions of 3~4 μm and thicknesses of 100~300 nm were obtained. When co-fired with domestic LTCC green tape, the flake gold powder exhibited excellent sintering compatibility and low electrical resistance. |
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