JOURNAL OF MATERIALS CHEMISTRY AFree-standing graphene films decorated with lithiophilic particles as host electrodes for lithium plating/stripping in anode-less lithium metal batteries Abstract：The host electrode is key to the lithium plating and stripping in anode-less lithium metal batteries. In this work, we fabricate a series of free-standing porous graphene films decorated with lithiophilic particles of AlN@Li3N, MgF2, Li2CO3, and the Mg–Li alloy foil, and systematically explore their electrochemical properties as lithium-host materials in anode-less lithium metal batteries. We characterize the structures and morphologies of the multifunctional graphene films before, after, and during lithium plating/stripping, to elaborate on the effects of different components in the film on the lithium plating/stripping. We demonstrate that the graphene sheets serve as an optimal host for lithium plating/stripping, the AlN@Li3N, MgF2, and Li2CO3 enable the formation of an inorganic LiF- and Li3N-rich solid electrolyte interphase, and the Mg–Li alloy foil compensates for lithium loss during long-term cycling. The anode-less lithium metal batteries with the as-obtained graphene film as the host electrode, NCM811 as the cathode, and a carbonate-based electrolyte exhibit excellent electrochemical performance, with capacity retention reaching ∼60% after 120 cycles at 1.93 mA cm−2.https://doi.org/10.1039/D4TA07788A

2025年1月15日，上海交通大学石墨烯及纳米功能材料实验室成功举办了年度盛会。此次年会不仅是一次回顾过去、展望未来的机会，更是一次增进师生情谊、促进交流的盛会。 年会由首先由主持人何汶俐热情开场。她首先对各位嘉宾和师生的到来表示热烈欢迎，并简要介绍了年会的流程。接下来，年会进入小游戏环节。主持人佟昊阳和郭亚娟上台为大家详细讲解了游戏规则，并鼓励大家积极参与。现场气氛迅速升温，参与者们踊跃报名，现场欢声笑语不断。 随后，大家共同分享了美味的蛋糕，象征着新一年的甜蜜与希望。师生们围坐在一起，分享着彼此的故事和感悟，进一步加深了彼此的了解和友谊。最后郭守武教授回顾了过去一年的成就，并对未来的发展提出了殷切期望。他特别提到，学校在科研、教学和社会服务方面取得了显著进展，这些成绩离不开每一位师生的努力和奉献。郭老师的讲话赢得了在场师生的热烈掌声。 此次年会不仅让大家放松身心、享受欢乐，更让大家感受到了学校的关怀和温暖。相信在全体师生的共同努力下，课题组未来一定会取得更加辉煌的成绩。

JOURNAL OF MATERIALS CHEMISTRY AFree-standing graphene films decorated with lithiophilic particles as host electrodes for lithium plating/stripping in anode-less lithium metal batteries Abstract：The host electrode is key to the lithium plating and stripping in anode-less lithium metal batteries. In this work, we fabricate a series of free-standing porous graphene films decorated with lithiophilic particles of AlN@Li3N, MgF2, Li2CO3, and the Mg–Li alloy foil, and systematically explore their electrochemical properties as lithium-host materials in anode-less lithium metal batteries. We characterize the structures and morphologies of the multifunctional graphene films before, after, and during lithium plating/stripping, to elaborate on the effects of different components in the film on the lithium plating/stripping. We demonstrate that the graphene sheets serve as an optimal host for lithium plating/stripping, the AlN@Li3N, MgF2, and Li2CO3 enable the formation of an inorganic LiF- and Li3N-rich solid electrolyte interphase, and the Mg–Li alloy foil compensates for lithium loss during long-term cycling. The anode-less lithium metal batteries with the as-obtained graphene film as the host electrode, NCM811 as the cathode, and a carbonate-based electrolyte exhibit excellent electrochemical performance, with capacity retention reaching ∼60% after 120 cycles at 1.93 mA cm−2.https://doi.org/10.1039/D4TA07788A

2025年1月16日，白明亮同学的硕士论文答辩报告会在电院4号楼E谷训练营顺利举行。硕士论文题目为《多尺度石墨烯调控锂金属负极沉积与剥离动力学性能研究》。答辩委员会由上海大学赵玉峰教授、上海交通大学郭守武教授、王林副教授应邀组成，赵玉峰教授担任主席。答辩报告会开始后，白明亮同学进行了25分钟的答辩陈述，随后答辩委员会进行了60分钟的问答与讨论。最终，答辩委员会一致同意（3票全票）通过白明亮同学的硕士论文答辩，并建议授予其工程硕士学位。 针对锂金属负极在循环中易形成锂枝晶和非活性锂、导致容量快速衰减和电池失效的挑战，白明亮同学的论文以石墨烯的多尺度性质为基础，设计并制备了一系列新型的碳基锂宿主材料，系统研究了其在锂金属沉积/剥离过程中的动力学调控作用。 在校期间，白明亮同学积极参与课题组研究工作，围绕学位论文顺利开展两项科研课题，在2025届毕业生中荣获“上海交通大学优秀毕业生”称号。

Green Chemistry: Boosting the Catalytic Performance ofRu Nanoparticles on the Cleavage of β-O-4 Linkage in Lignin by Doping Mo Puyi Lei, Jiali Zhang, Wenzhuo Shen, Min Zhong andShouwu Guo* Abstract：Ru nanoparticles doped with Mo on reduced grapheneoxide (RuMo/rGO) are prepared through synchronous reductions of RuCl3,MoCl5, and graphene oxide in the work. The compositions,morphologies, and structures of as-prepared RuMo/rGO composites are fullycharacterized. Their catalytic properties in oxidative cleavages of β-O-4linkages in lignin model compounds and lignin are explored. It is illustratedthat with O2 as oxidant the RuMo/rGO show overall better catalyticperformance in the oxidative cleavage of β-O-4 linkage than the catalysts, suchas Ru/rGO and RuCo/rGO reported in our previous work. The catalytic mechanismis elaborated through experiments and density functional theory (DFT) calculation.Pronouncedly, we show that the as-doped Mo can effectively boost the molecularoxygen activation process and the adsorption of β-O-4 model compounds on Runanoparticle surface on rGO, and thus enhance the catalytic activity. It isdemonstrated meanwhile that the RuMo/rGO can catalyze the depolymerization oforganosolv birch lignin yielding 17.1% aromatic compounds under relatively mildconditions (100 °C, 0.3 MPa O2, 12 h, pH = 12).https://doi.org/10.1039/D4GC00294F

Green Chemistry: Boosting the Catalytic Performance ofRu Nanoparticles on the Cleavage of β-O-4 Linkage in Lignin by Doping Mo Puyi Lei, Jiali Zhang, Wenzhuo Shen, Min Zhong andShouwu Guo* Abstract：Ru nanoparticles doped with Mo on reduced grapheneoxide (RuMo/rGO) are prepared through synchronous reductions of RuCl3,MoCl5, and graphene oxide in the work. The compositions,morphologies, and structures of as-prepared RuMo/rGO composites are fullycharacterized. Their catalytic properties in oxidative cleavages of β-O-4linkages in lignin model compounds and lignin are explored. It is illustratedthat with O2 as oxidant the RuMo/rGO show overall better catalyticperformance in the oxidative cleavage of β-O-4 linkage than the catalysts, suchas Ru/rGO and RuCo/rGO reported in our previous work. The catalytic mechanismis elaborated through experiments and density functional theory (DFT) calculation.Pronouncedly, we show that the as-doped Mo can effectively boost the molecularoxygen activation process and the adsorption of β-O-4 model compounds on Runanoparticle surface on rGO, and thus enhance the catalytic activity. It isdemonstrated meanwhile that the RuMo/rGO can catalyze the depolymerization oforganosolv birch lignin yielding 17.1% aromatic compounds under relatively mildconditions (100 °C, 0.3 MPa O2, 12 h, pH = 12).https://doi.org/10.1039/D4GC00294F