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absinthe2210新蟲 (小有名氣)
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[求助]
一小段文獻(xiàn)求翻譯 已有3人參與
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The measured distance between the two nearest atom rows is 2.22A ̊, i.e., close to the (111) interplanar distance of Pd (2.25 A ̊ ). Rows of Pd atom can be observed on the surfaces of most Co@Pd particles, denoting the uniformity of the Pd shell. The Co@Pd nanoparticles consist of 34 mol% Pd and 66 mol% Co, determined by ICP-AES measure- ments, that is consistent with the expected Pd/Co molar ratio (33/67). On the basis of the particle’s size, composi- tion, and lattice parameters, and assuming that the parti- cles are spherical, the estimated thickness of the Pd shell was 0.54 nm, i.e., about 2.4 atomic layers. 主要是我想知道是怎么知道Pd殼有多厚的,求大神們賜教,謝謝了 |
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苦艾同學(xué),在下的一點(diǎn)愚見: On the basis of the particle's size [這里指Co@Pd這個(gè)核殼結(jié)構(gòu)的顆粒大小(你的這個(gè)段落中沒有提及,但是前文應(yīng)該有)], composition [既是Pd/Co=34/66這個(gè)顆粒內(nèi)的原子成分], and lattice parameters [2.22A這個(gè)提及的兩排原子間的最近距離。這個(gè)距離被認(rèn)為十分接近純Pd晶體內(nèi)Pd原子內(nèi)最緊排列方向(111)上的間距,因此被暗示為核殼結(jié)構(gòu)里Pd原子間的間距], and assuming that the particles are spherical [假設(shè)顆粒是球形], [這里開始你已經(jīng)懂了] the estimated thickness of the Pd shell was 0.54 nm, i.e., about 2.4 atomic layers. |
新蟲 (小有名氣)
新蟲 (初入文壇)
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