铂碳催化剂（5% Pt/C）

评测依据

• review_count：320
• rating_avg：4.7
• brand_reputation：0
• merchant_count：0
• price_range：[800,1999]
• dimension：best_value
• sources：["京东","天猫"]
• time_range：{"from":"2026-06-26 04:35:24","to":"2026-06-26 04:35:24"}
• intros：{"brand_intro":"Alfa Aesar（阿法埃莎）隶属于Thermo Fisher Scientific，是全球领先的科研化学品和金属催化剂供应商。拥有超过50年历史，产品线覆盖贵金属催化剂、高纯无机物等，以严格的质量控制和详尽的分析证书（CoA）著称，是高校和工业研发实验室的常用品牌。","product_intro":"该产品为负载型铂碳催化剂，铂含量5%（质量分数），以高比表面积活性炭为载体。适用于加氢、脱氢、氧化等有机合成反应，如硝基还原、烯烃氢化。粉末状，粒径均匀，催化活性高，批次稳定性好，每批附带金属含量和粒径检测报告。","key_specs":["铂含量：5% ± 0.2%","载体：活性炭（比表面积≥800 m²/g）","粒径：< 50 μm","干燥失重：≤ 3%","包装规格：5 g/瓶"]}
• alt_products：[{"product_name":"铂碳催化剂（5% Pt/C）","brand":"Alfa Aesar","model":"043314","price":1280},{"product_name":"铂碳催化剂（10% Pt/C）","brand":"阿拉丁","model":"P104541","price":1580}]
• kol_quotes：["Alfa Aesar的Pt/C是我实验室加氢反应的标配，活性一致性好。","5%负载量性价比高，适合筛选反应条件。"]
• scoring_breakdown：[{"source":"word_of_mouth","score":91.1,"weight":0.15,"confidence":0.8,"details":{"source":"word_of_mouth_scores","summary":"用户普遍认可其催化活性稳定，在硝基苯还原和苯乙烯加氢实验中转化率超过98%。部分评论提到粉末较细，称量时需注意静电吸附。京东好评率98%，多位科研人员反馈批次间差异小，适合重复性实验。少数用户建议增加更大包装规格。","source_count":2}},{"source":"objective","score":82.77499165971642,"weight":0.6,"confidence":0.5,"details":{"rating_avg":4.7,"price":1280,"wom_score":91.1}},{"source":"user_review","score":94,"weight":0.15,"confidence":1,"details":{"rating_avg":4.7,"review_count":320,"source":"product_reviews_aggregate"}},{"source":"expert","score":82,"weight":0.1,"confidence":0.6,"details":{"kol_count":2,"scored_count":2,"sample":["Alfa Aesar的Pt/C是我实验室加氢反应的标配，活性一致性好。","5%负载量性价比高，适合筛选反应条件。"]}}]
• method_version：v3
• search_visual：null