CTR 微算云平臺 2021-01-08
Chem:首次報道!均相和多相催化劑協(xié)同催化CO2加氫轉(zhuǎn)化為液體燃料 Meng Cui et al. Liquid fuel synthesis via CO2 hydrogenation by coupling homogeneous and heterogeneous catalysis. Chem, 2020, DOI: 10.1016/j.chempr.2020.12.005.
ACS Energy Lett.:與金屬Cu耦合調(diào)節(jié)NiP2-FeP2界面電荷密度,助力堿性HER
Ashwani Kumar et al. Modulating Interfacial Charge Density of NiP2-FeP2 via Coupling with Metallic Cu for Accelerating Alkaline Hydrogen Evolution. ACS Energy Lett., 2020, DOI: 10.1021/acsenergylett.0c02498.
Matter:具有優(yōu)異性能的CaTi0.5Mn0.5O3-δ助力太陽能驅(qū)動熱化學(xué)制氫氣
Xin Qian et al. Outstanding Properties and Performance of CaTi0.5Mn0.5O3-δ for Solar-Driven Thermochemical Hydrogen Production. Matter, 2020, DOI: 10.1016/j.matt.2020.11.016.
Nano Energy:利用維生素C擴散(注應(yīng)為增殖)Fe-N4活性位點助力電催化OER
研究發(fā)現(xiàn),暴露在金屬有機骨架(MOFs)表面上的自由過渡金屬離子(Fe2+、Co2+等)在碳化過程中會高度聚集,不利于M-NX活性位點的形成,從而導(dǎo)致電化學(xué)活性位點減少?;诖耍錆h理工大學(xué)木士春教授和何大平教授等人報道了通過具有配位過渡金屬能力的維生素C(L(+)-抗壞血酸)與亞鐵離子(Fe2+)絡(luò)合,可以有效地抑制MOFs表面上的游離金屬離子并且增加Fe-N4活性位點。同時,維生素C的酸度可適度侵蝕MOFs材料的表面,從而進一步加速碳化產(chǎn)物中產(chǎn)生孔洞和缺陷。對比未引入維生素C的對照樣品,鐵基(VC-MOF-Fe)催化劑具有明顯增加的Fe-N4活性位點,表現(xiàn)出顯著增強的氧化還原反應(yīng)(ORR)和析氧反應(yīng)(OER)性能。當(dāng)用于可再充電鋅-空氣電池時,VC-MOF-Fe的峰值功率密度可以達到113 mW cm-2,明顯也優(yōu)于20%的商用Pt/C+RuO2催化劑。此外,維生素C的功能也適用于鈷(Co)基催化劑(VC-MOF-Co),在堿性介質(zhì)中ORR和OER性能也得到顯著的提高,表明該策略具有普遍適用性。
Chenxi Hu et al. Propagating Fe-N4 active sites with Vitamin C to efficiently drive oxygen electrocatalysis. Nano Energy, 2020, DOI: 10.1016/j.nanoen.2020.105714.
Adv. Funct. Mater.:通用策略!基于非晶態(tài)過渡金屬氧化物的2D異質(zhì)結(jié)實現(xiàn)優(yōu)異光催化HER和OER
Bing-Xin Zhou et al. Generalized Synthetic Strategy for Amorphous Transition Metal Oxides-Based 2D Heterojunctions with Superb Photocatalytic Hydrogen and Oxygen Evolution. Adv. Funct. Mater., 2020, DOI: 10.1002/adfm.202009230.