Everything's gone green: The selective oxidation of aromatic alcohols to aldehydes has been achieved by use of a green energy source and solvent combination. Solar energy with a recyclable Pt/TiO2 photocatalyst in water at ambient temperature brought about the desired oxidation with high selectivity and relatively long‐term stability.

Direct methanol fuel cell (DMFC) is considered as one of the next-generation power sources for portable electronic devices. However, the problems of structure and materials of the membrane electrode assembly (MEA) must be resolved if it is applied in flexible electronic devices. The traditional materials of MEA used in DMFC cannot bend and are easy to break. Moreover, the existence of a microporous layer increases the likelihood of separation of the gas diffusion layer (GDL) and catalytic layer. Herein, we develop a simple electrospinning method to prepare flexible titanium carbide/carbon nanofibers (TiC/CNFs) film used as GDL. TiC/CNFs film plays a GDL and a microporous layer dual role. The MEA exhibits enhancing performance and excellent flexibility. The maximum power density of flexible DMFC can reach 20.2 mW/cm 2 , compared with the GDL made of traditional carbon cloth (18.1 mW/cm 2 ), the maximum power density rises by 11.6%. After 50 consecutive bends, the voltage drops less than 10%. This work would promote the flexibility of DMFC.

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Hydrophilic 2D layered silicate supported Fe 3 O 4 catalyst (Fe 3 O 4 /2D-LS) was prepared by an impregnation method and showed greatly improved olefin selectivity in CO hydrogenation. The olefin ratio (O/P) on Fe 3 O 4 /2D-LS was increased from 0.50 to 6.05 compared with that of single Fe 3 O 4 . Surprisingly, the Fe 3 O 4 /2D-LS catalysts had an enhanced chain growth ability and promoted the formation of linear α-olefin in C 5 + hydrocarbons increasing from 33.5 to 72.5%. Characterizations showed that layered structure and hydrophilic properties maintained during a CO hydrogenation test. The Fe 3 O 4 supported 2D-LS was easier to reduction and promoted the CO adsorption. The hydroxyl groups on the 2D-LS detected by CA and Zeta may help to increase the selectivity of olefin by inhibiting the secondary reaction of primary olefins.

The first mass migration in China took place at the end of the Western Jin, which resulted in the southward transfer of the Central Plains Culture and brought about huge social changes. Such social changes exerted significant impacts on the gentry of the Jin Dynasty. This paper used a huge volume of Classical Chinese legacy text of Jin gentry members. We used CC-LIWC to calculate frequencies of different word categories used in these text contents and conducted an analysis of variance to measure significant differences between the three groups. We found 16 categories of words with significant differences and calculated their effect sizes, such as tense markers (tensem), F = 3.588, P < 0.05, η2 = 0.034; modal particles (modal_pa), F = 3.468, P < 0.05, η2 = 0.053; words for affective processes (affect), F = 3.096, P < 0.05, η2 = 0.028; words for cognitive processes (cogproc), F = 3.308, P < 0.05, η2 = 0.031; words for perceptual processes (percept), F = 7.137, P < 0.05, η2 = 0.06. Combining the psycholinguistics of the 16 categories of words and researches of historians on the Jin Dynasty, we then analyzed the direct and indirect, immediate and long-lasting psycholinguistic impacts of this mass migration on the gentry themselves and their descendants.