羧甲基纤维素钠/羧甲基壳聚糖气凝胶基湿气发电装置的制备及其性能研究OA

In this study,carboxymethyl cellulose sodium(CMC-Na)and carboxymethyl chitosan(CMCS)were used as raw materials to pre-pare CMC-Na/CMCS aerogel.Then the aerogel was assembled with a porous aluminum mesh and copper foil to construct a novel moist elec-tricity generation devices(MEGs)featuring a'sandwich'structure that integrated both efficient moisture capture and conversion capabili-ties.The performance of moist electricity generation of prepared CMC-Na/CMCS aerogel-based MEGs was evaluated.The results indicated that the successful cross-linking between CMC-Na and CMCS was occurred,endowing the CMC-Na/CMCS aerogel with a three-dimensional network structure and uniform pore.Under conditions at 45℃ and relative humidity of 80％,the CMC-Na/CMCS aerogel-based MEGs achieved a maximum stable open-circuit voltage(Voc)of 0.90 V and a short-circuit current(Isc)of 2.6 μA.Under normal environmental condi-tions(temperature of 25～40℃,relative humidity of 55％～75％),the CMC-Na/CMCS aerogel-based MEGs sustained continuous voltage out-put for up to 24 h,with Voc stabilizing between 0.43 V and 0.79 V,demonstrating excellent environmental adaptability and operational stability.