Mini-emulsion and nanoprecipitation techniques relied on large amounts of surfactants, and unresolved miscibility issues of heterojunction materials limited their efficiency and applicability in the past. Through our molecular design and developed surfactant-free precipitation method, we successfully fabricated the best miscible bulk-heterojunction-particles (BHJP) ever achieved, using donor (PS) and acceptor (PSOS) polymers. The structural similarity ensures optimal miscibility, as supported by the interaction parameter of the PS/PSOS blend is positioned very close to the binodal curve. Experimental studies and molecular dynamics simulations further revealed that surfactants hinder electron output sites and reduce the concentration of sacrificial agents at the interface, slowing polaron formation. Multiscale experiments verified that these BHJP, approximately 12 nm in diameter, further form cross-linked fractal networks of several hundred nanometers. Transient absorption spectroscopy showed that BHJP facilitates polaron formation and electron transfer. Our BHJP demonstrated a superior hydrogen evolution rate (HER) compared to traditional methods. The most active BHJP achieved an HER of 251.2 mmol h–1 g–1 and an apparent quantum yield of 26.2% at 500 nm. This work not only introduces a practical method for preparing BHJP but also offers a new direction for the development of heterojunction materials.

Wei-Cheng Lin

Yu-En Sun

Ying-Rang Zhuang

Tse-Fu Huang

Kuei-Jhong Lin

Mohamed M. Elsenety

Jui-Chen Yen

Hung-Kai Hsu

Bo-Han Chen

Chen-Yu Chang

Je-Wei Chang

Hsin-Ni Huang

Bing-Heng Li

Siriporn Jungsuttiwong

Toton Haldar

Shin-Huei Wang

Wan-Chi Lin

Tien-Lin Wu

Chin-Wen Chen

Chi-Hua Yu

An-Chung Su

Kun-Han Lin

U-Ser Jeng

Shang-Da Yang

Ho-Hsiu Chou

Journal of the American Chemical Society

美国化学学会杂志 (JACS) 成立于 1879 年，是美国化学学会的旗舰期刊，也是世界上所有化学和科学交叉领域的杰出期刊。该期刊致力于出版基础知识研究论文，每年发表约 19,000 页的文章、通讯和展望。每周出版，JACS 提供化学领域必不可少的研究。化学领域被引用次数最多的期刊，美国化学学会杂志 (JACS) 共收到 462,510引用次数和影响因子增加到 11.444，如 2013 年期刊引文报告®（汤森路透，2014 年）报告的那样。JACS 在出版涵盖所有化学领域的原创研究和每年超过 2,000 篇文章的期刊中的影响因子排名第一

The Journal of the American Chemical Society (JACS), established in 1879, is the flagship journal of the American Chemical Society and a leading journal in the fields of chemistry and interdisciplinary sciences worldwide. The journal focuses on fundamental research, publishing approximately 19,000 pages of articles, communications, and perspectives each year. JACS is published weekly and provides essential resources for research in the field of chemistry. According to the 2013 Journal Citation Reports (Thomson Reuters, 2014), JACS is the most cited journal in chemistry, with a total citation count of 462,510 and an impact factor of 11.444, ranking first among journals publishing original research across all areas of chemistry, with over 2,000 articles published annually.

《美国化学学会杂志》（Journal of the American Chemical Society，简称 JACS）成立于 1879 年，是美国化学学会的旗舰期刊，也是全球化学及相关交叉学科领域的顶尖期刊。该期刊专注于基础研究，年均发表约 19,000 页的研究论文、通讯和展望。JACS 每周出版，为化学领域的研究提供了不可或缺的资源。根据 2013 年的期刊引文报告（汤森路透，2014 年），JACS 是被引用次数最多的化学期刊，累计引用次数达到 462,510，影响因子高达 11.444，位居所有化学领域原创研究期刊之首，每年发表超过 2,000 篇文章。

Optimally Miscible Polymer Bulk-Heterojunction-Particles for Nonsurfactant Photocatalytic Hydrogen Evolution

最佳混溶性聚合物体异质结颗粒用于非表面活性剂光催化产氢

Category	Quartile
化学	1
化学, 化学综合	1

Optimally Miscible Polymer Bulk-Heterojunction-Particles for Nonsurfactant Photocatalytic Hydrogen Evolution

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Category	Quartile
CHEMISTRY, MULTIDISCIPLINARY	1